@fluidframework/runtime-utils - npm Package Compare versions

Comparing version 2.10.0-305357 to 2.10.0-306579

.eslintrc.cjs

@@ -14,2 +14,5 @@ /*!
 	},
+	rules: {
+		"@fluid-internal/fluid/no-unchecked-record-access": "warn",
+	},
 };

api-report/runtime-utils.legacy.alpha.api.md

@@ -69,3 +69,3 @@ ## Alpha API Report File for "@fluidframework/runtime-utils"
 
-// @alpha (undocumented)
+// @alpha
 export class SummaryTreeBuilder implements ISummaryTreeWithStats {
@@ -75,10 +75,6 @@ constructor(params?: {
     });
-    // (undocumented)
     addAttachment(id: string): void;
-    // (undocumented)
     addBlob(key: string, content: string | Uint8Array): void;
     addHandle(key: string, handleType: SummaryType.Tree | SummaryType.Blob | SummaryType.Attachment, handle: string): void;
-    // (undocumented)
     addWithStats(key: string, summarizeResult: ISummarizeResult): void;
-    // (undocumented)
     getSummaryTree(): ISummaryTreeWithStats;
@@ -85,0 +81,0 @@ // (undocumented)

dist/summaryUtils.d.ts

@@ -50,2 +50,4 @@ /*!
 /**
+ * A helper class for building summary trees.
+ * @remarks Uses the builder pattern.
  * @legacy
@@ -64,2 +66,7 @@ * @alpha
     private summaryStats;
+    /**
+     * Add a blob to the summary tree. This blob will be stored at the given key in the summary tree.
+     * @param key - The key to store the blob at in the current summary tree being generated. Should not contain any "/" characters.
+     * @param content - The content of the blob to be added to the summary tree.
+     */
     addBlob(key: string, content: string | Uint8Array): void;
@@ -77,4 +84,21 @@ /**
     addHandle(key: string, handleType: SummaryType.Tree | SummaryType.Blob | SummaryType.Attachment, handle: string): void;
+    /**
+     * Adds a child and updates the stats accordingly.
+     * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any "/" characters.
+     * The key should be unique within the current summary tree, and not transform when encodeURIComponent is called.
+     * @param summarizeResult - Similar to {@link @fluidframework/runtime-definitions#ISummaryTreeWithStats}. The provided summary can be either a {@link @fluidframework/driver-definitions#ISummaryHandle} or {@link @fluidframework/driver-definitions#ISummaryTree}.
+     */
     addWithStats(key: string, summarizeResult: ISummarizeResult): void;
+    /**
+     * Adds an {@link @fluidframework/driver-definitions#ISummaryAttachment} to the summary. This blob needs to already be uploaded to storage.
+     * @param id - The id of the uploaded attachment to be added to the summary tree.
+     */
     addAttachment(id: string): void;
+    /**
+     * Gives you the in-memory summary tree with stats built by the SummaryTreeBuilder.
+     *
+     * @remarks
+     * Use this once you're done building the summary tree, the stats should automatically be generated.
+     * @returns The summary tree and stats built by the SummaryTreeBuilder.
+     */
     getSummaryTree(): ISummaryTreeWithStats;
@@ -81,0 +105,0 @@ }

dist/summaryUtils.d.ts.map

@@ -1,1 +0,1 @@
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dist/summaryUtils.js

@@ -119,2 +119,4 @@ "use strict";
 /**
+ * A helper class for building summary trees.
+ * @remarks Uses the builder pattern.
  * @legacy
@@ -144,2 +146,7 @@ * @alpha
     }
+    /**
+     * Add a blob to the summary tree. This blob will be stored at the given key in the summary tree.
+     * @param key - The key to store the blob at in the current summary tree being generated. Should not contain any "/" characters.
+     * @param content - The content of the blob to be added to the summary tree.
+     */
     addBlob(key, content) {
@@ -173,2 +180,8 @@ // Prevent cloning by directly referencing underlying private properties
     }
+    /**
+     * Adds a child and updates the stats accordingly.
+     * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any "/" characters.
+     * The key should be unique within the current summary tree, and not transform when encodeURIComponent is called.
+     * @param summarizeResult - Similar to {@link @fluidframework/runtime-definitions#ISummaryTreeWithStats}. The provided summary can be either a {@link @fluidframework/driver-definitions#ISummaryHandle} or {@link @fluidframework/driver-definitions#ISummaryTree}.
+     */
     addWithStats(key, summarizeResult) {
@@ -178,5 +191,16 @@ this.summaryTree[key] = summarizeResult.summary;
     }
+    /**
+     * Adds an {@link @fluidframework/driver-definitions#ISummaryAttachment} to the summary. This blob needs to already be uploaded to storage.
+     * @param id - The id of the uploaded attachment to be added to the summary tree.
+     */
     addAttachment(id) {
         this.summaryTree[this.attachmentCounter++] = { id, type: driver_definitions_1.SummaryType.Attachment };
     }
+    /**
+     * Gives you the in-memory summary tree with stats built by the SummaryTreeBuilder.
+     *
+     * @remarks
+     * Use this once you're done building the summary tree, the stats should automatically be generated.
+     * @returns The summary tree and stats built by the SummaryTreeBuilder.
+     */
     getSummaryTree() {
@@ -183,0 +207,0 @@ return { summary: this.summary, stats: this.stats };

dist/summaryUtils.js.map

@@ -1,1 +0,1 @@
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* Copyright (c) Microsoft Corporation and contributors. All rights reserved.\n * Licensed under the MIT License.\n */\n\nimport {\n\tIsoBuffer,\n\tUint8ArrayToString,\n\tbufferToString,\n\tfromBase64ToUtf8,\n} from \"@fluid-internal/client-utils\";\nimport { ISnapshotTreeWithBlobContents } from \"@fluidframework/container-definitions/internal\";\nimport { assert, unreachableCase } from \"@fluidframework/core-utils/internal\";\nimport {\n\tISummaryBlob,\n\tISummaryTree,\n\tSummaryObject,\n\tSummaryType,\n} from \"@fluidframework/driver-definitions\";\nimport { ITree, ITreeEntry, TreeEntry } from \"@fluidframework/driver-definitions/internal\";\nimport {\n\tAttachmentTreeEntry,\n\tBlobTreeEntry,\n\tTreeTreeEntry,\n} from \"@fluidframework/driver-utils/internal\";\nimport {\n\tISummaryStats,\n\tISummaryTreeWithStats,\n\tITelemetryContext,\n\tIGarbageCollectionData,\n\tISummarizeResult,\n\tITelemetryContextExt,\n\tgcDataBlobKey,\n} from \"@fluidframework/runtime-definitions/internal\";\nimport type { TelemetryEventPropertyTypeExt } from \"@fluidframework/telemetry-utils/internal\";\n\n/**\n * Combines summary stats by adding their totals together.\n * Returns empty stats if called without args.\n * @param stats - stats to merge\n * @internal\n */\nexport function mergeStats(...stats: ISummaryStats[]): ISummaryStats {\n\tconst results = {\n\t\ttreeNodeCount: 0,\n\t\tblobNodeCount: 0,\n\t\thandleNodeCount: 0,\n\t\ttotalBlobSize: 0,\n\t\tunreferencedBlobSize: 0,\n\t};\n\tfor (const stat of stats) {\n\t\tresults.treeNodeCount += stat.treeNodeCount;\n\t\tresults.blobNodeCount += stat.blobNodeCount;\n\t\tresults.handleNodeCount += stat.handleNodeCount;\n\t\tresults.totalBlobSize += stat.totalBlobSize;\n\t\tresults.unreferencedBlobSize += stat.unreferencedBlobSize;\n\t}\n\treturn results;\n}\n\n/**\n * @internal\n */\nexport function utf8ByteLength(str: string): number {\n\t// returns the byte length of an utf8 string\n\tlet s = str.length;\n\tfor (let i = str.length - 1; i >= 0; i--) {\n\t\tconst code = str.charCodeAt(i);\n\t\tif (code > 0x7f && code <= 0x7ff) {\n\t\t\ts++;\n\t\t} else if (code > 0x7ff && code <= 0xffff) {\n\t\t\ts += 2;\n\t\t}\n\t\tif (code >= 0xdc00 && code <= 0xdfff) {\n\t\t\ti--; // trail surrogate\n\t\t}\n\t}\n\treturn s;\n}\n\n/**\n * @internal\n */\nexport function getBlobSize(content: ISummaryBlob[\"content\"]): number {\n\treturn typeof content === \"string\" ? utf8ByteLength(content) : content.byteLength;\n}\n\nfunction calculateStatsCore(summaryObject: SummaryObject, stats: ISummaryStats): void {\n\tswitch (summaryObject.type) {\n\t\tcase SummaryType.Tree: {\n\t\t\tstats.treeNodeCount++;\n\t\t\tfor (const value of Object.values(summaryObject.tree)) {\n\t\t\t\tcalculateStatsCore(value, stats);\n\t\t\t}\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Handle: {\n\t\t\tstats.handleNodeCount++;\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Blob: {\n\t\t\tstats.blobNodeCount++;\n\t\t\tstats.totalBlobSize += getBlobSize(summaryObject.content);\n\t\t\treturn;\n\t\t}\n\t\tdefault:\n\t\t\treturn;\n\t}\n}\n\n/**\n * @internal\n */\nexport function calculateStats(summary: SummaryObject): ISummaryStats {\n\tconst stats = mergeStats();\n\tcalculateStatsCore(summary, stats);\n\treturn stats;\n}\n\n/**\n * @internal\n */\nexport function addBlobToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tcontent: string | Uint8Array,\n): void {\n\tconst blob: ISummaryBlob = {\n\t\ttype: SummaryType.Blob,\n\t\tcontent,\n\t};\n\tsummary.summary.tree[key] = blob;\n\tsummary.stats.blobNodeCount++;\n\tsummary.stats.totalBlobSize += getBlobSize(content);\n}\n\n/**\n * @internal\n */\nexport function addSummarizeResultToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tsummarizeResult: ISummarizeResult,\n): void {\n\tsummary.summary.tree[key] = summarizeResult.summary;\n\tsummary.stats = mergeStats(summary.stats, summarizeResult.stats);\n}\n\n/**\n * An object who's properties are used to initialize a {@link SummaryTreeBuilder}\n * @legacy\n * @alpha\n */\nexport interface SummaryTreeBuilderParams {\n\t/**\n\t * This value will become the {@link @fluidframework/driver-definitions#ISummaryTree.groupId}\n\t * of the {@link @fluidframework/driver-definitions#ISummaryTree} built by the {@link SummaryTreeBuilder}.\n\t */\n\tgroupId?: string;\n}\n/**\n * @legacy\n * @alpha\n */\nexport class SummaryTreeBuilder implements ISummaryTreeWithStats {\n\tprivate attachmentCounter: number = 0;\n\tprivate readonly groupId?: string;\n\n\tpublic get summary(): ISummaryTree {\n\t\tconst summary: ISummaryTree = {\n\t\t\ttype: SummaryType.Tree,\n\t\t\ttree: { ...this.summaryTree },\n\t\t};\n\t\tif (this.groupId !== undefined) {\n\t\t\tsummary.groupId = this.groupId;\n\t\t}\n\t\treturn summary;\n\t}\n\n\tpublic get stats(): Readonly<ISummaryStats> {\n\t\treturn { ...this.summaryStats };\n\t}\n\n\tconstructor(params?: { groupId?: string }) {\n\t\tthis.summaryStats = mergeStats();\n\t\tthis.summaryStats.treeNodeCount++;\n\t\tthis.groupId = params?.groupId;\n\t}\n\n\tprivate readonly summaryTree: { [path: string]: SummaryObject } = {};\n\tprivate summaryStats: ISummaryStats;\n\n\tpublic addBlob(key: string, content: string | Uint8Array): void {\n\t\t// Prevent cloning by directly referencing underlying private properties\n\t\taddBlobToSummary(\n\t\t\t{\n\t\t\t\tsummary: {\n\t\t\t\t\ttype: SummaryType.Tree,\n\t\t\t\t\ttree: this.summaryTree,\n\t\t\t\t},\n\t\t\t\tstats: this.summaryStats,\n\t\t\t},\n\t\t\tkey,\n\t\t\tcontent,\n\t\t);\n\t}\n\n\t/**\n\t * Adds an {@link @fluidframework/driver-definitions#ISummaryHandle} that references a subtree, blob, or attachment in a previous summary.\n\t *\n\t * @remarks\n\t * There are special limitations to both the key and handle parameters: We use encodeURIComponent and decodeURIComponent to encode and decode the key and handle parameters after they are added to the summary tree. This means that the key and handle parameters must be valid URI components. If they are not, the encoding and decoding will fail and the summary will not be generated correctly.\n\t *\n\t * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * @param handleType - the type of {@link @fluidframework/driver-definitions#SummaryObject} besides a SummaryHandle, i.e. {@link @fluidframework/driver-definitions#SummaryType.Tree}, {@link @fluidframework/driver-definitions#SummaryType.Blob}, {@link @fluidframework/driver-definitions#SummaryType.Attachment}\n\t * @param handle - The path pointing to the part of the previous summary being used to duplicate the data. Use {@link @fluidframework/driver-definitions#ISummaryHandle.handle} to help generate proper handle strings. Should not contain any \"/\" characters.\n\t */\n\tpublic addHandle(\n\t\tkey: string,\n\t\thandleType: SummaryType.Tree | SummaryType.Blob | SummaryType.Attachment,\n\t\thandle: string,\n\t): void {\n\t\tthis.summaryTree[key] = {\n\t\t\ttype: SummaryType.Handle,\n\t\t\thandleType,\n\t\t\thandle,\n\t\t};\n\t\tthis.summaryStats.handleNodeCount++;\n\t}\n\n\tpublic addWithStats(key: string, summarizeResult: ISummarizeResult): void {\n\t\tthis.summaryTree[key] = summarizeResult.summary;\n\t\tthis.summaryStats = mergeStats(this.summaryStats, summarizeResult.stats);\n\t}\n\n\tpublic addAttachment(id: string) {\n\t\tthis.summaryTree[this.attachmentCounter++] = { id, type: SummaryType.Attachment };\n\t}\n\n\tpublic getSummaryTree(): ISummaryTreeWithStats {\n\t\treturn { summary: this.summary, stats: this.stats };\n\t}\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @legacy\n * @alpha\n */\nexport function convertToSummaryTreeWithStats(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const entry of snapshot.entries) {\n\t\tswitch (entry.type) {\n\t\t\tcase TreeEntry.Blob: {\n\t\t\t\tconst blob = entry.value;\n\t\t\t\tconst content =\n\t\t\t\t\tblob.encoding === \"base64\" ? IsoBuffer.from(blob.contents, \"base64\") : blob.contents;\n\t\t\t\tbuilder.addBlob(entry.path, content);\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Tree: {\n\t\t\t\tconst subtree = convertToSummaryTree(entry.value, fullTree);\n\t\t\t\tbuilder.addWithStats(entry.path, subtree);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Attachment: {\n\t\t\t\tconst id = entry.value.id;\n\t\t\t\tbuilder.addAttachment(id);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tthrow new Error(\"Unexpected TreeEntry type\");\n\t\t}\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @internal\n */\nexport function convertToSummaryTree(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummarizeResult {\n\t// eslint-disable-next-line @typescript-eslint/strict-boolean-expressions\n\tif (snapshot.id && !fullTree) {\n\t\tconst stats = mergeStats();\n\t\tstats.handleNodeCount++;\n\t\treturn {\n\t\t\tsummary: {\n\t\t\t\thandle: snapshot.id,\n\t\t\t\thandleType: SummaryType.Tree,\n\t\t\t\ttype: SummaryType.Handle,\n\t\t\t},\n\t\t\tstats,\n\t\t};\n\t} else {\n\t\treturn convertToSummaryTreeWithStats(snapshot, fullTree);\n\t}\n}\n\n/**\n * Converts ISnapshotTree to ISummaryTree format and tracks stats. This snapshot tree was\n * was taken by serialize api in detached container.\n * @param snapshot - snapshot in ISnapshotTree format\n * @internal\n */\nexport function convertSnapshotTreeToSummaryTree(\n\tsnapshot: ISnapshotTreeWithBlobContents,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const [path, id] of Object.entries(snapshot.blobs)) {\n\t\tlet decoded: string | undefined;\n\t\tif (snapshot.blobsContents !== undefined) {\n\t\t\t// TODO Why are we non null asserting here?\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tconst content: ArrayBufferLike = snapshot.blobsContents[id]!;\n\t\t\tif (content !== undefined) {\n\t\t\t\tdecoded = bufferToString(content, \"utf-8\");\n\t\t\t}\n\t\t\t// 0.44 back-compat We still put contents in same blob for back-compat so need to add blob\n\t\t\t// only for blobPath -> blobId mapping and not for blobId -> blob value contents.\n\t\t} else if (snapshot.blobs[id] !== undefined) {\n\t\t\t// Non null asserting here because of the undefined check above\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tdecoded = fromBase64ToUtf8(snapshot.blobs[id]!);\n\t\t}\n\t\tif (decoded !== undefined) {\n\t\t\tbuilder.addBlob(path, decoded);\n\t\t}\n\t}\n\n\tfor (const [key, tree] of Object.entries(snapshot.trees)) {\n\t\tconst subtree = convertSnapshotTreeToSummaryTree(tree);\n\t\tbuilder.addWithStats(key, subtree);\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts ISummaryTree to ITree format. This is needed for back-compat while we get rid of snapshot.\n * @param summaryTree - summary tree in ISummaryTree format\n * @internal\n */\nexport function convertSummaryTreeToITree(summaryTree: ISummaryTree): ITree {\n\tconst entries: ITreeEntry[] = [];\n\tfor (const [key, value] of Object.entries(summaryTree.tree)) {\n\t\tswitch (value.type) {\n\t\t\tcase SummaryType.Blob: {\n\t\t\t\tlet parsedContent: string;\n\t\t\t\tlet encoding: \"utf-8\" | \"base64\" = \"utf-8\";\n\t\t\t\tif (typeof value.content === \"string\") {\n\t\t\t\t\tparsedContent = value.content;\n\t\t\t\t} else {\n\t\t\t\t\tparsedContent = Uint8ArrayToString(value.content, \"base64\");\n\t\t\t\t\tencoding = \"base64\";\n\t\t\t\t}\n\t\t\t\tentries.push(new BlobTreeEntry(key, parsedContent, encoding));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Tree: {\n\t\t\t\tentries.push(new TreeTreeEntry(key, convertSummaryTreeToITree(value)));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Attachment: {\n\t\t\t\tentries.push(new AttachmentTreeEntry(key, value.id));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Handle: {\n\t\t\t\tthrow new Error(\"Should not have Handle type in summary tree\");\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tunreachableCase(value, \"Unexpected summary tree type\");\n\t\t}\n\t}\n\treturn {\n\t\tentries,\n\t\tunreferenced: summaryTree.unreferenced,\n\t\tgroupId: summaryTree.groupId,\n\t};\n}\n\n/**\n * Looks in the given attach message snapshot for the .gcdata blob, which would\n * contain the initial GC Data for the node being attached.\n * If it finds it, it notifies GC of all the new outbound routes being added by the attach.\n *\n * @param snapshot - The snapshot from the attach message\n * @param addedGCOutboundRoute - Callback to notify GC of a new outbound route.\n * IMPORTANT: addedGCOutboundRoute's param nodeId is \"/\" for the attaching node itself, or \"/<id>\" for its children.\n *\n * @returns true if it found/processed GC Data, false otherwise\n *\n * @internal\n */\nexport function processAttachMessageGCData(\n\tsnapshot: ITree | null,\n\taddedGCOutboundRoute: (fromNodeId: string, toPath: string) => void,\n): boolean {\n\tconst gcDataEntry = snapshot?.entries.find((e) => e.path === gcDataBlobKey);\n\n\t// Old attach messages won't have GC Data\n\t// (And REALLY old DataStore Attach messages won't even have a snapshot!)\n\tif (gcDataEntry === undefined) {\n\t\treturn false;\n\t}\n\n\tassert(\n\t\tgcDataEntry.type === TreeEntry.Blob && gcDataEntry.value.encoding === \"utf-8\",\n\t\t0x8ff /* GC data should be a utf-8-encoded blob */,\n\t);\n\n\tconst gcData = JSON.parse(gcDataEntry.value.contents) as IGarbageCollectionData;\n\tfor (const [nodeId, outboundRoutes] of Object.entries(gcData.gcNodes)) {\n\t\toutboundRoutes.forEach((toPath) => {\n\t\t\taddedGCOutboundRoute(nodeId, toPath);\n\t\t});\n\t}\n\treturn true;\n}\n\n/**\n * @internal\n */\nexport class TelemetryContext implements ITelemetryContext, ITelemetryContextExt {\n\tprivate readonly telemetry = new Map<string, TelemetryEventPropertyTypeExt>();\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.set}\n\t */\n\tset(prefix: string, property: string, value: TelemetryEventPropertyTypeExt): void {\n\t\tthis.telemetry.set(`${prefix}${property}`, value);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.setMultiple}\n\t */\n\tsetMultiple(\n\t\tprefix: string,\n\t\tproperty: string,\n\t\tvalues: Record<string, TelemetryEventPropertyTypeExt>,\n\t): void {\n\t\t// Set the values individually so that they are logged as a flat list along with other properties.\n\t\tfor (const key of Object.keys(values)) {\n\t\t\tthis.set(prefix, `${property}_${key}`, values[key]);\n\t\t}\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.get}\n\t */\n\tget(prefix: string, property: string): TelemetryEventPropertyTypeExt {\n\t\treturn this.telemetry.get(`${prefix}${property}`);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.serialize}\n\t */\n\tserialize(): string {\n\t\tconst jsonObject = {};\n\t\tthis.telemetry.forEach((value, key) => {\n\t\t\tjsonObject[key] = value;\n\t\t});\n\t\treturn JSON.stringify(jsonObject);\n\t}\n}\n\n/**\n * Trims the leading slashes from the given string.\n * @param str - A string that may contain leading slashes.\n * @returns A new string without leading slashes.\n */\nfunction trimLeadingSlashes(str: string) {\n\treturn str.replace(/^\\/+/g, \"\");\n}\n\n/**\n * Trims the trailing slashes from the given string.\n * @param str - A string that may contain trailing slashes.\n * @returns A new string without trailing slashes.\n */\nfunction trimTrailingSlashes(str: string) {\n\treturn str.replace(/\\/+$/g, \"\");\n}\n\n/**\n * Helper class to build the garbage collection data of a node by combining the data from multiple nodes.\n * @internal\n */\nexport class GCDataBuilder implements IGarbageCollectionData {\n\tprivate readonly gcNodesSet: { [id: string]: Set<string> } = {};\n\tpublic get gcNodes(): { [id: string]: string[] } {\n\t\tconst gcNodes = {};\n\t\tfor (const [nodeId, outboundRoutes] of Object.entries(this.gcNodesSet)) {\n\t\t\tgcNodes[nodeId] = [...outboundRoutes];\n\t\t}\n\t\treturn gcNodes;\n\t}\n\n\tpublic addNode(id: string, outboundRoutes: string[]) {\n\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t}\n\n\t/**\n\t * Adds the given GC nodes. It does the following:\n\t * - Normalizes the ids of the given nodes.\n\t * - Prefixes the given `prefixId` to the given nodes' ids.\n\t * - Adds the outbound routes of the nodes against the normalized and prefixed id.\n\t */\n\tpublic prefixAndAddNodes(prefixId: string, gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\t// Remove any leading slashes from the id.\n\t\t\tlet normalizedId = trimLeadingSlashes(id);\n\t\t\t// Prefix the given id to the normalized id.\n\t\t\tnormalizedId = `/${prefixId}/${normalizedId}`;\n\t\t\t// Remove any trailing slashes from the normalized id. Note that the trailing slashes are removed after\n\t\t\t// adding the prefix for handling the special case where id is \"/\".\n\t\t\tnormalizedId = trimTrailingSlashes(normalizedId);\n\n\t\t\t// Add the outbound routes against the normalized and prefixed id without duplicates.\n\t\t\tthis.gcNodesSet[normalizedId] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\tpublic addNodes(gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\t/**\n\t * Adds the given outbound route to the outbound routes of all GC nodes.\n\t */\n\tpublic addRouteToAllNodes(outboundRoute: string) {\n\t\tfor (const outboundRoutes of Object.values(this.gcNodesSet)) {\n\t\t\toutboundRoutes.add(outboundRoute);\n\t\t}\n\t}\n\n\tpublic getGCData(): IGarbageCollectionData {\n\t\treturn {\n\t\t\tgcNodes: this.gcNodes,\n\t\t};\n\t}\n}\n"]}
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* Copyright (c) Microsoft Corporation and contributors. All rights reserved.\n * Licensed under the MIT License.\n */\n\nimport {\n\tIsoBuffer,\n\tUint8ArrayToString,\n\tbufferToString,\n\tfromBase64ToUtf8,\n} from \"@fluid-internal/client-utils\";\nimport { ISnapshotTreeWithBlobContents } from \"@fluidframework/container-definitions/internal\";\nimport { assert, unreachableCase } from \"@fluidframework/core-utils/internal\";\nimport {\n\tISummaryBlob,\n\tISummaryTree,\n\tSummaryObject,\n\tSummaryType,\n} from \"@fluidframework/driver-definitions\";\nimport { ITree, ITreeEntry, TreeEntry } from \"@fluidframework/driver-definitions/internal\";\nimport {\n\tAttachmentTreeEntry,\n\tBlobTreeEntry,\n\tTreeTreeEntry,\n} from \"@fluidframework/driver-utils/internal\";\nimport {\n\tISummaryStats,\n\tISummaryTreeWithStats,\n\tITelemetryContext,\n\tIGarbageCollectionData,\n\tISummarizeResult,\n\tITelemetryContextExt,\n\tgcDataBlobKey,\n} from \"@fluidframework/runtime-definitions/internal\";\nimport type { TelemetryEventPropertyTypeExt } from \"@fluidframework/telemetry-utils/internal\";\n\n/**\n * Combines summary stats by adding their totals together.\n * Returns empty stats if called without args.\n * @param stats - stats to merge\n * @internal\n */\nexport function mergeStats(...stats: ISummaryStats[]): ISummaryStats {\n\tconst results = {\n\t\ttreeNodeCount: 0,\n\t\tblobNodeCount: 0,\n\t\thandleNodeCount: 0,\n\t\ttotalBlobSize: 0,\n\t\tunreferencedBlobSize: 0,\n\t};\n\tfor (const stat of stats) {\n\t\tresults.treeNodeCount += stat.treeNodeCount;\n\t\tresults.blobNodeCount += stat.blobNodeCount;\n\t\tresults.handleNodeCount += stat.handleNodeCount;\n\t\tresults.totalBlobSize += stat.totalBlobSize;\n\t\tresults.unreferencedBlobSize += stat.unreferencedBlobSize;\n\t}\n\treturn results;\n}\n\n/**\n * @internal\n */\nexport function utf8ByteLength(str: string): number {\n\t// returns the byte length of an utf8 string\n\tlet s = str.length;\n\tfor (let i = str.length - 1; i >= 0; i--) {\n\t\tconst code = str.charCodeAt(i);\n\t\tif (code > 0x7f && code <= 0x7ff) {\n\t\t\ts++;\n\t\t} else if (code > 0x7ff && code <= 0xffff) {\n\t\t\ts += 2;\n\t\t}\n\t\tif (code >= 0xdc00 && code <= 0xdfff) {\n\t\t\ti--; // trail surrogate\n\t\t}\n\t}\n\treturn s;\n}\n\n/**\n * @internal\n */\nexport function getBlobSize(content: ISummaryBlob[\"content\"]): number {\n\treturn typeof content === \"string\" ? utf8ByteLength(content) : content.byteLength;\n}\n\nfunction calculateStatsCore(summaryObject: SummaryObject, stats: ISummaryStats): void {\n\tswitch (summaryObject.type) {\n\t\tcase SummaryType.Tree: {\n\t\t\tstats.treeNodeCount++;\n\t\t\tfor (const value of Object.values(summaryObject.tree)) {\n\t\t\t\tcalculateStatsCore(value, stats);\n\t\t\t}\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Handle: {\n\t\t\tstats.handleNodeCount++;\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Blob: {\n\t\t\tstats.blobNodeCount++;\n\t\t\tstats.totalBlobSize += getBlobSize(summaryObject.content);\n\t\t\treturn;\n\t\t}\n\t\tdefault:\n\t\t\treturn;\n\t}\n}\n\n/**\n * @internal\n */\nexport function calculateStats(summary: SummaryObject): ISummaryStats {\n\tconst stats = mergeStats();\n\tcalculateStatsCore(summary, stats);\n\treturn stats;\n}\n\n/**\n * @internal\n */\nexport function addBlobToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tcontent: string | Uint8Array,\n): void {\n\tconst blob: ISummaryBlob = {\n\t\ttype: SummaryType.Blob,\n\t\tcontent,\n\t};\n\tsummary.summary.tree[key] = blob;\n\tsummary.stats.blobNodeCount++;\n\tsummary.stats.totalBlobSize += getBlobSize(content);\n}\n\n/**\n * @internal\n */\nexport function addSummarizeResultToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tsummarizeResult: ISummarizeResult,\n): void {\n\tsummary.summary.tree[key] = summarizeResult.summary;\n\tsummary.stats = mergeStats(summary.stats, summarizeResult.stats);\n}\n\n/**\n * An object who's properties are used to initialize a {@link SummaryTreeBuilder}\n * @legacy\n * @alpha\n */\nexport interface SummaryTreeBuilderParams {\n\t/**\n\t * This value will become the {@link @fluidframework/driver-definitions#ISummaryTree.groupId}\n\t * of the {@link @fluidframework/driver-definitions#ISummaryTree} built by the {@link SummaryTreeBuilder}.\n\t */\n\tgroupId?: string;\n}\n/**\n * A helper class for building summary trees.\n * @remarks Uses the builder pattern.\n * @legacy\n * @alpha\n */\nexport class SummaryTreeBuilder implements ISummaryTreeWithStats {\n\tprivate attachmentCounter: number = 0;\n\tprivate readonly groupId?: string;\n\n\tpublic get summary(): ISummaryTree {\n\t\tconst summary: ISummaryTree = {\n\t\t\ttype: SummaryType.Tree,\n\t\t\ttree: { ...this.summaryTree },\n\t\t};\n\t\tif (this.groupId !== undefined) {\n\t\t\tsummary.groupId = this.groupId;\n\t\t}\n\t\treturn summary;\n\t}\n\n\tpublic get stats(): Readonly<ISummaryStats> {\n\t\treturn { ...this.summaryStats };\n\t}\n\n\tconstructor(params?: { groupId?: string }) {\n\t\tthis.summaryStats = mergeStats();\n\t\tthis.summaryStats.treeNodeCount++;\n\t\tthis.groupId = params?.groupId;\n\t}\n\n\tprivate readonly summaryTree: { [path: string]: SummaryObject } = {};\n\tprivate summaryStats: ISummaryStats;\n\n\t/**\n\t * Add a blob to the summary tree. This blob will be stored at the given key in the summary tree.\n\t * @param key - The key to store the blob at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * @param content - The content of the blob to be added to the summary tree.\n\t */\n\tpublic addBlob(key: string, content: string | Uint8Array): void {\n\t\t// Prevent cloning by directly referencing underlying private properties\n\t\taddBlobToSummary(\n\t\t\t{\n\t\t\t\tsummary: {\n\t\t\t\t\ttype: SummaryType.Tree,\n\t\t\t\t\ttree: this.summaryTree,\n\t\t\t\t},\n\t\t\t\tstats: this.summaryStats,\n\t\t\t},\n\t\t\tkey,\n\t\t\tcontent,\n\t\t);\n\t}\n\n\t/**\n\t * Adds an {@link @fluidframework/driver-definitions#ISummaryHandle} that references a subtree, blob, or attachment in a previous summary.\n\t *\n\t * @remarks\n\t * There are special limitations to both the key and handle parameters: We use encodeURIComponent and decodeURIComponent to encode and decode the key and handle parameters after they are added to the summary tree. This means that the key and handle parameters must be valid URI components. If they are not, the encoding and decoding will fail and the summary will not be generated correctly.\n\t *\n\t * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * @param handleType - the type of {@link @fluidframework/driver-definitions#SummaryObject} besides a SummaryHandle, i.e. {@link @fluidframework/driver-definitions#SummaryType.Tree}, {@link @fluidframework/driver-definitions#SummaryType.Blob}, {@link @fluidframework/driver-definitions#SummaryType.Attachment}\n\t * @param handle - The path pointing to the part of the previous summary being used to duplicate the data. Use {@link @fluidframework/driver-definitions#ISummaryHandle.handle} to help generate proper handle strings. Should not contain any \"/\" characters.\n\t */\n\tpublic addHandle(\n\t\tkey: string,\n\t\thandleType: SummaryType.Tree | SummaryType.Blob | SummaryType.Attachment,\n\t\thandle: string,\n\t): void {\n\t\tthis.summaryTree[key] = {\n\t\t\ttype: SummaryType.Handle,\n\t\t\thandleType,\n\t\t\thandle,\n\t\t};\n\t\tthis.summaryStats.handleNodeCount++;\n\t}\n\n\t/**\n\t * Adds a child and updates the stats accordingly.\n\t * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * The key should be unique within the current summary tree, and not transform when encodeURIComponent is called.\n\t * @param summarizeResult - Similar to {@link @fluidframework/runtime-definitions#ISummaryTreeWithStats}. The provided summary can be either a {@link @fluidframework/driver-definitions#ISummaryHandle} or {@link @fluidframework/driver-definitions#ISummaryTree}.\n\t */\n\tpublic addWithStats(key: string, summarizeResult: ISummarizeResult): void {\n\t\tthis.summaryTree[key] = summarizeResult.summary;\n\t\tthis.summaryStats = mergeStats(this.summaryStats, summarizeResult.stats);\n\t}\n\n\t/**\n\t * Adds an {@link @fluidframework/driver-definitions#ISummaryAttachment} to the summary. This blob needs to already be uploaded to storage.\n\t * @param id - The id of the uploaded attachment to be added to the summary tree.\n\t */\n\tpublic addAttachment(id: string) {\n\t\tthis.summaryTree[this.attachmentCounter++] = { id, type: SummaryType.Attachment };\n\t}\n\n\t/**\n\t * Gives you the in-memory summary tree with stats built by the SummaryTreeBuilder.\n\t *\n\t * @remarks\n\t * Use this once you're done building the summary tree, the stats should automatically be generated.\n\t * @returns The summary tree and stats built by the SummaryTreeBuilder.\n\t */\n\tpublic getSummaryTree(): ISummaryTreeWithStats {\n\t\treturn { summary: this.summary, stats: this.stats };\n\t}\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @legacy\n * @alpha\n */\nexport function convertToSummaryTreeWithStats(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const entry of snapshot.entries) {\n\t\tswitch (entry.type) {\n\t\t\tcase TreeEntry.Blob: {\n\t\t\t\tconst blob = entry.value;\n\t\t\t\tconst content =\n\t\t\t\t\tblob.encoding === \"base64\" ? IsoBuffer.from(blob.contents, \"base64\") : blob.contents;\n\t\t\t\tbuilder.addBlob(entry.path, content);\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Tree: {\n\t\t\t\tconst subtree = convertToSummaryTree(entry.value, fullTree);\n\t\t\t\tbuilder.addWithStats(entry.path, subtree);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Attachment: {\n\t\t\t\tconst id = entry.value.id;\n\t\t\t\tbuilder.addAttachment(id);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tthrow new Error(\"Unexpected TreeEntry type\");\n\t\t}\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @internal\n */\nexport function convertToSummaryTree(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummarizeResult {\n\t// eslint-disable-next-line @typescript-eslint/strict-boolean-expressions\n\tif (snapshot.id && !fullTree) {\n\t\tconst stats = mergeStats();\n\t\tstats.handleNodeCount++;\n\t\treturn {\n\t\t\tsummary: {\n\t\t\t\thandle: snapshot.id,\n\t\t\t\thandleType: SummaryType.Tree,\n\t\t\t\ttype: SummaryType.Handle,\n\t\t\t},\n\t\t\tstats,\n\t\t};\n\t} else {\n\t\treturn convertToSummaryTreeWithStats(snapshot, fullTree);\n\t}\n}\n\n/**\n * Converts ISnapshotTree to ISummaryTree format and tracks stats. This snapshot tree was\n * was taken by serialize api in detached container.\n * @param snapshot - snapshot in ISnapshotTree format\n * @internal\n */\nexport function convertSnapshotTreeToSummaryTree(\n\tsnapshot: ISnapshotTreeWithBlobContents,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const [path, id] of Object.entries(snapshot.blobs)) {\n\t\tlet decoded: string | undefined;\n\t\tif (snapshot.blobsContents !== undefined) {\n\t\t\t// TODO Why are we non null asserting here?\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tconst content: ArrayBufferLike = snapshot.blobsContents[id]!;\n\t\t\tif (content !== undefined) {\n\t\t\t\tdecoded = bufferToString(content, \"utf-8\");\n\t\t\t}\n\t\t\t// 0.44 back-compat We still put contents in same blob for back-compat so need to add blob\n\t\t\t// only for blobPath -> blobId mapping and not for blobId -> blob value contents.\n\t\t} else if (snapshot.blobs[id] !== undefined) {\n\t\t\t// Non null asserting here because of the undefined check above\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tdecoded = fromBase64ToUtf8(snapshot.blobs[id]!);\n\t\t}\n\t\tif (decoded !== undefined) {\n\t\t\tbuilder.addBlob(path, decoded);\n\t\t}\n\t}\n\n\tfor (const [key, tree] of Object.entries(snapshot.trees)) {\n\t\tconst subtree = convertSnapshotTreeToSummaryTree(tree);\n\t\tbuilder.addWithStats(key, subtree);\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts ISummaryTree to ITree format. This is needed for back-compat while we get rid of snapshot.\n * @param summaryTree - summary tree in ISummaryTree format\n * @internal\n */\nexport function convertSummaryTreeToITree(summaryTree: ISummaryTree): ITree {\n\tconst entries: ITreeEntry[] = [];\n\tfor (const [key, value] of Object.entries(summaryTree.tree)) {\n\t\tswitch (value.type) {\n\t\t\tcase SummaryType.Blob: {\n\t\t\t\tlet parsedContent: string;\n\t\t\t\tlet encoding: \"utf-8\" | \"base64\" = \"utf-8\";\n\t\t\t\tif (typeof value.content === \"string\") {\n\t\t\t\t\tparsedContent = value.content;\n\t\t\t\t} else {\n\t\t\t\t\tparsedContent = Uint8ArrayToString(value.content, \"base64\");\n\t\t\t\t\tencoding = \"base64\";\n\t\t\t\t}\n\t\t\t\tentries.push(new BlobTreeEntry(key, parsedContent, encoding));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Tree: {\n\t\t\t\tentries.push(new TreeTreeEntry(key, convertSummaryTreeToITree(value)));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Attachment: {\n\t\t\t\tentries.push(new AttachmentTreeEntry(key, value.id));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Handle: {\n\t\t\t\tthrow new Error(\"Should not have Handle type in summary tree\");\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tunreachableCase(value, \"Unexpected summary tree type\");\n\t\t}\n\t}\n\treturn {\n\t\tentries,\n\t\tunreferenced: summaryTree.unreferenced,\n\t\tgroupId: summaryTree.groupId,\n\t};\n}\n\n/**\n * Looks in the given attach message snapshot for the .gcdata blob, which would\n * contain the initial GC Data for the node being attached.\n * If it finds it, it notifies GC of all the new outbound routes being added by the attach.\n *\n * @param snapshot - The snapshot from the attach message\n * @param addedGCOutboundRoute - Callback to notify GC of a new outbound route.\n * IMPORTANT: addedGCOutboundRoute's param nodeId is \"/\" for the attaching node itself, or \"/<id>\" for its children.\n *\n * @returns true if it found/processed GC Data, false otherwise\n *\n * @internal\n */\nexport function processAttachMessageGCData(\n\tsnapshot: ITree | null,\n\taddedGCOutboundRoute: (fromNodeId: string, toPath: string) => void,\n): boolean {\n\tconst gcDataEntry = snapshot?.entries.find((e) => e.path === gcDataBlobKey);\n\n\t// Old attach messages won't have GC Data\n\t// (And REALLY old DataStore Attach messages won't even have a snapshot!)\n\tif (gcDataEntry === undefined) {\n\t\treturn false;\n\t}\n\n\tassert(\n\t\tgcDataEntry.type === TreeEntry.Blob && gcDataEntry.value.encoding === \"utf-8\",\n\t\t0x8ff /* GC data should be a utf-8-encoded blob */,\n\t);\n\n\tconst gcData = JSON.parse(gcDataEntry.value.contents) as IGarbageCollectionData;\n\tfor (const [nodeId, outboundRoutes] of Object.entries(gcData.gcNodes)) {\n\t\toutboundRoutes.forEach((toPath) => {\n\t\t\taddedGCOutboundRoute(nodeId, toPath);\n\t\t});\n\t}\n\treturn true;\n}\n\n/**\n * @internal\n */\nexport class TelemetryContext implements ITelemetryContext, ITelemetryContextExt {\n\tprivate readonly telemetry = new Map<string, TelemetryEventPropertyTypeExt>();\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.set}\n\t */\n\tset(prefix: string, property: string, value: TelemetryEventPropertyTypeExt): void {\n\t\tthis.telemetry.set(`${prefix}${property}`, value);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.setMultiple}\n\t */\n\tsetMultiple(\n\t\tprefix: string,\n\t\tproperty: string,\n\t\tvalues: Record<string, TelemetryEventPropertyTypeExt>,\n\t): void {\n\t\t// Set the values individually so that they are logged as a flat list along with other properties.\n\t\tfor (const key of Object.keys(values)) {\n\t\t\tthis.set(prefix, `${property}_${key}`, values[key]);\n\t\t}\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.get}\n\t */\n\tget(prefix: string, property: string): TelemetryEventPropertyTypeExt {\n\t\treturn this.telemetry.get(`${prefix}${property}`);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.serialize}\n\t */\n\tserialize(): string {\n\t\tconst jsonObject = {};\n\t\tthis.telemetry.forEach((value, key) => {\n\t\t\tjsonObject[key] = value;\n\t\t});\n\t\treturn JSON.stringify(jsonObject);\n\t}\n}\n\n/**\n * Trims the leading slashes from the given string.\n * @param str - A string that may contain leading slashes.\n * @returns A new string without leading slashes.\n */\nfunction trimLeadingSlashes(str: string) {\n\treturn str.replace(/^\\/+/g, \"\");\n}\n\n/**\n * Trims the trailing slashes from the given string.\n * @param str - A string that may contain trailing slashes.\n * @returns A new string without trailing slashes.\n */\nfunction trimTrailingSlashes(str: string) {\n\treturn str.replace(/\\/+$/g, \"\");\n}\n\n/**\n * Helper class to build the garbage collection data of a node by combining the data from multiple nodes.\n * @internal\n */\nexport class GCDataBuilder implements IGarbageCollectionData {\n\tprivate readonly gcNodesSet: { [id: string]: Set<string> } = {};\n\tpublic get gcNodes(): { [id: string]: string[] } {\n\t\tconst gcNodes = {};\n\t\tfor (const [nodeId, outboundRoutes] of Object.entries(this.gcNodesSet)) {\n\t\t\tgcNodes[nodeId] = [...outboundRoutes];\n\t\t}\n\t\treturn gcNodes;\n\t}\n\n\tpublic addNode(id: string, outboundRoutes: string[]) {\n\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t}\n\n\t/**\n\t * Adds the given GC nodes. It does the following:\n\t * - Normalizes the ids of the given nodes.\n\t * - Prefixes the given `prefixId` to the given nodes' ids.\n\t * - Adds the outbound routes of the nodes against the normalized and prefixed id.\n\t */\n\tpublic prefixAndAddNodes(prefixId: string, gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\t// Remove any leading slashes from the id.\n\t\t\tlet normalizedId = trimLeadingSlashes(id);\n\t\t\t// Prefix the given id to the normalized id.\n\t\t\tnormalizedId = `/${prefixId}/${normalizedId}`;\n\t\t\t// Remove any trailing slashes from the normalized id. Note that the trailing slashes are removed after\n\t\t\t// adding the prefix for handling the special case where id is \"/\".\n\t\t\tnormalizedId = trimTrailingSlashes(normalizedId);\n\n\t\t\t// Add the outbound routes against the normalized and prefixed id without duplicates.\n\t\t\tthis.gcNodesSet[normalizedId] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\tpublic addNodes(gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\t/**\n\t * Adds the given outbound route to the outbound routes of all GC nodes.\n\t */\n\tpublic addRouteToAllNodes(outboundRoute: string) {\n\t\tfor (const outboundRoutes of Object.values(this.gcNodesSet)) {\n\t\t\toutboundRoutes.add(outboundRoute);\n\t\t}\n\t}\n\n\tpublic getGCData(): IGarbageCollectionData {\n\t\treturn {\n\t\t\tgcNodes: this.gcNodes,\n\t\t};\n\t}\n}\n"]}

lib/summaryUtils.d.ts

@@ -50,2 +50,4 @@ /*!
 /**
+ * A helper class for building summary trees.
+ * @remarks Uses the builder pattern.
  * @legacy
@@ -64,2 +66,7 @@ * @alpha
     private summaryStats;
+    /**
+     * Add a blob to the summary tree. This blob will be stored at the given key in the summary tree.
+     * @param key - The key to store the blob at in the current summary tree being generated. Should not contain any "/" characters.
+     * @param content - The content of the blob to be added to the summary tree.
+     */
     addBlob(key: string, content: string | Uint8Array): void;
@@ -77,4 +84,21 @@ /**
     addHandle(key: string, handleType: SummaryType.Tree | SummaryType.Blob | SummaryType.Attachment, handle: string): void;
+    /**
+     * Adds a child and updates the stats accordingly.
+     * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any "/" characters.
+     * The key should be unique within the current summary tree, and not transform when encodeURIComponent is called.
+     * @param summarizeResult - Similar to {@link @fluidframework/runtime-definitions#ISummaryTreeWithStats}. The provided summary can be either a {@link @fluidframework/driver-definitions#ISummaryHandle} or {@link @fluidframework/driver-definitions#ISummaryTree}.
+     */
     addWithStats(key: string, summarizeResult: ISummarizeResult): void;
+    /**
+     * Adds an {@link @fluidframework/driver-definitions#ISummaryAttachment} to the summary. This blob needs to already be uploaded to storage.
+     * @param id - The id of the uploaded attachment to be added to the summary tree.
+     */
     addAttachment(id: string): void;
+    /**
+     * Gives you the in-memory summary tree with stats built by the SummaryTreeBuilder.
+     *
+     * @remarks
+     * Use this once you're done building the summary tree, the stats should automatically be generated.
+     * @returns The summary tree and stats built by the SummaryTreeBuilder.
+     */
     getSummaryTree(): ISummaryTreeWithStats;
@@ -81,0 +105,0 @@ }

lib/summaryUtils.d.ts.map

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lib/summaryUtils.js

@@ -110,2 +110,4 @@ /*!
 /**
+ * A helper class for building summary trees.
+ * @remarks Uses the builder pattern.
  * @legacy
@@ -135,2 +137,7 @@ * @alpha
     }
+    /**
+     * Add a blob to the summary tree. This blob will be stored at the given key in the summary tree.
+     * @param key - The key to store the blob at in the current summary tree being generated. Should not contain any "/" characters.
+     * @param content - The content of the blob to be added to the summary tree.
+     */
     addBlob(key, content) {
@@ -164,2 +171,8 @@ // Prevent cloning by directly referencing underlying private properties
     }
+    /**
+     * Adds a child and updates the stats accordingly.
+     * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any "/" characters.
+     * The key should be unique within the current summary tree, and not transform when encodeURIComponent is called.
+     * @param summarizeResult - Similar to {@link @fluidframework/runtime-definitions#ISummaryTreeWithStats}. The provided summary can be either a {@link @fluidframework/driver-definitions#ISummaryHandle} or {@link @fluidframework/driver-definitions#ISummaryTree}.
+     */
     addWithStats(key, summarizeResult) {
@@ -169,5 +182,16 @@ this.summaryTree[key] = summarizeResult.summary;
     }
+    /**
+     * Adds an {@link @fluidframework/driver-definitions#ISummaryAttachment} to the summary. This blob needs to already be uploaded to storage.
+     * @param id - The id of the uploaded attachment to be added to the summary tree.
+     */
     addAttachment(id) {
         this.summaryTree[this.attachmentCounter++] = { id, type: SummaryType.Attachment };
     }
+    /**
+     * Gives you the in-memory summary tree with stats built by the SummaryTreeBuilder.
+     *
+     * @remarks
+     * Use this once you're done building the summary tree, the stats should automatically be generated.
+     * @returns The summary tree and stats built by the SummaryTreeBuilder.
+     */
     getSummaryTree() {
@@ -174,0 +198,0 @@ return { summary: this.summary, stats: this.stats };

lib/summaryUtils.js.map

@@ -1,1 +0,1 @@
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* Copyright (c) Microsoft Corporation and contributors. All rights reserved.\n * Licensed under the MIT License.\n */\n\nimport {\n\tIsoBuffer,\n\tUint8ArrayToString,\n\tbufferToString,\n\tfromBase64ToUtf8,\n} from \"@fluid-internal/client-utils\";\nimport { ISnapshotTreeWithBlobContents } from \"@fluidframework/container-definitions/internal\";\nimport { assert, unreachableCase } from \"@fluidframework/core-utils/internal\";\nimport {\n\tISummaryBlob,\n\tISummaryTree,\n\tSummaryObject,\n\tSummaryType,\n} from \"@fluidframework/driver-definitions\";\nimport { ITree, ITreeEntry, TreeEntry } from \"@fluidframework/driver-definitions/internal\";\nimport {\n\tAttachmentTreeEntry,\n\tBlobTreeEntry,\n\tTreeTreeEntry,\n} from \"@fluidframework/driver-utils/internal\";\nimport {\n\tISummaryStats,\n\tISummaryTreeWithStats,\n\tITelemetryContext,\n\tIGarbageCollectionData,\n\tISummarizeResult,\n\tITelemetryContextExt,\n\tgcDataBlobKey,\n} from \"@fluidframework/runtime-definitions/internal\";\nimport type { TelemetryEventPropertyTypeExt } from \"@fluidframework/telemetry-utils/internal\";\n\n/**\n * Combines summary stats by adding their totals together.\n * Returns empty stats if called without args.\n * @param stats - stats to merge\n * @internal\n */\nexport function mergeStats(...stats: ISummaryStats[]): ISummaryStats {\n\tconst results = {\n\t\ttreeNodeCount: 0,\n\t\tblobNodeCount: 0,\n\t\thandleNodeCount: 0,\n\t\ttotalBlobSize: 0,\n\t\tunreferencedBlobSize: 0,\n\t};\n\tfor (const stat of stats) {\n\t\tresults.treeNodeCount += stat.treeNodeCount;\n\t\tresults.blobNodeCount += stat.blobNodeCount;\n\t\tresults.handleNodeCount += stat.handleNodeCount;\n\t\tresults.totalBlobSize += stat.totalBlobSize;\n\t\tresults.unreferencedBlobSize += stat.unreferencedBlobSize;\n\t}\n\treturn results;\n}\n\n/**\n * @internal\n */\nexport function utf8ByteLength(str: string): number {\n\t// returns the byte length of an utf8 string\n\tlet s = str.length;\n\tfor (let i = str.length - 1; i >= 0; i--) {\n\t\tconst code = str.charCodeAt(i);\n\t\tif (code > 0x7f && code <= 0x7ff) {\n\t\t\ts++;\n\t\t} else if (code > 0x7ff && code <= 0xffff) {\n\t\t\ts += 2;\n\t\t}\n\t\tif (code >= 0xdc00 && code <= 0xdfff) {\n\t\t\ti--; // trail surrogate\n\t\t}\n\t}\n\treturn s;\n}\n\n/**\n * @internal\n */\nexport function getBlobSize(content: ISummaryBlob[\"content\"]): number {\n\treturn typeof content === \"string\" ? utf8ByteLength(content) : content.byteLength;\n}\n\nfunction calculateStatsCore(summaryObject: SummaryObject, stats: ISummaryStats): void {\n\tswitch (summaryObject.type) {\n\t\tcase SummaryType.Tree: {\n\t\t\tstats.treeNodeCount++;\n\t\t\tfor (const value of Object.values(summaryObject.tree)) {\n\t\t\t\tcalculateStatsCore(value, stats);\n\t\t\t}\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Handle: {\n\t\t\tstats.handleNodeCount++;\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Blob: {\n\t\t\tstats.blobNodeCount++;\n\t\t\tstats.totalBlobSize += getBlobSize(summaryObject.content);\n\t\t\treturn;\n\t\t}\n\t\tdefault:\n\t\t\treturn;\n\t}\n}\n\n/**\n * @internal\n */\nexport function calculateStats(summary: SummaryObject): ISummaryStats {\n\tconst stats = mergeStats();\n\tcalculateStatsCore(summary, stats);\n\treturn stats;\n}\n\n/**\n * @internal\n */\nexport function addBlobToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tcontent: string | Uint8Array,\n): void {\n\tconst blob: ISummaryBlob = {\n\t\ttype: SummaryType.Blob,\n\t\tcontent,\n\t};\n\tsummary.summary.tree[key] = blob;\n\tsummary.stats.blobNodeCount++;\n\tsummary.stats.totalBlobSize += getBlobSize(content);\n}\n\n/**\n * @internal\n */\nexport function addSummarizeResultToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tsummarizeResult: ISummarizeResult,\n): void {\n\tsummary.summary.tree[key] = summarizeResult.summary;\n\tsummary.stats = mergeStats(summary.stats, summarizeResult.stats);\n}\n\n/**\n * An object who's properties are used to initialize a {@link SummaryTreeBuilder}\n * @legacy\n * @alpha\n */\nexport interface SummaryTreeBuilderParams {\n\t/**\n\t * This value will become the {@link @fluidframework/driver-definitions#ISummaryTree.groupId}\n\t * of the {@link @fluidframework/driver-definitions#ISummaryTree} built by the {@link SummaryTreeBuilder}.\n\t */\n\tgroupId?: string;\n}\n/**\n * @legacy\n * @alpha\n */\nexport class SummaryTreeBuilder implements ISummaryTreeWithStats {\n\tprivate attachmentCounter: number = 0;\n\tprivate readonly groupId?: string;\n\n\tpublic get summary(): ISummaryTree {\n\t\tconst summary: ISummaryTree = {\n\t\t\ttype: SummaryType.Tree,\n\t\t\ttree: { ...this.summaryTree },\n\t\t};\n\t\tif (this.groupId !== undefined) {\n\t\t\tsummary.groupId = this.groupId;\n\t\t}\n\t\treturn summary;\n\t}\n\n\tpublic get stats(): Readonly<ISummaryStats> {\n\t\treturn { ...this.summaryStats };\n\t}\n\n\tconstructor(params?: { groupId?: string }) {\n\t\tthis.summaryStats = mergeStats();\n\t\tthis.summaryStats.treeNodeCount++;\n\t\tthis.groupId = params?.groupId;\n\t}\n\n\tprivate readonly summaryTree: { [path: string]: SummaryObject } = {};\n\tprivate summaryStats: ISummaryStats;\n\n\tpublic addBlob(key: string, content: string | Uint8Array): void {\n\t\t// Prevent cloning by directly referencing underlying private properties\n\t\taddBlobToSummary(\n\t\t\t{\n\t\t\t\tsummary: {\n\t\t\t\t\ttype: SummaryType.Tree,\n\t\t\t\t\ttree: this.summaryTree,\n\t\t\t\t},\n\t\t\t\tstats: this.summaryStats,\n\t\t\t},\n\t\t\tkey,\n\t\t\tcontent,\n\t\t);\n\t}\n\n\t/**\n\t * Adds an {@link @fluidframework/driver-definitions#ISummaryHandle} that references a subtree, blob, or attachment in a previous summary.\n\t *\n\t * @remarks\n\t * There are special limitations to both the key and handle parameters: We use encodeURIComponent and decodeURIComponent to encode and decode the key and handle parameters after they are added to the summary tree. This means that the key and handle parameters must be valid URI components. If they are not, the encoding and decoding will fail and the summary will not be generated correctly.\n\t *\n\t * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * @param handleType - the type of {@link @fluidframework/driver-definitions#SummaryObject} besides a SummaryHandle, i.e. {@link @fluidframework/driver-definitions#SummaryType.Tree}, {@link @fluidframework/driver-definitions#SummaryType.Blob}, {@link @fluidframework/driver-definitions#SummaryType.Attachment}\n\t * @param handle - The path pointing to the part of the previous summary being used to duplicate the data. Use {@link @fluidframework/driver-definitions#ISummaryHandle.handle} to help generate proper handle strings. Should not contain any \"/\" characters.\n\t */\n\tpublic addHandle(\n\t\tkey: string,\n\t\thandleType: SummaryType.Tree | SummaryType.Blob | SummaryType.Attachment,\n\t\thandle: string,\n\t): void {\n\t\tthis.summaryTree[key] = {\n\t\t\ttype: SummaryType.Handle,\n\t\t\thandleType,\n\t\t\thandle,\n\t\t};\n\t\tthis.summaryStats.handleNodeCount++;\n\t}\n\n\tpublic addWithStats(key: string, summarizeResult: ISummarizeResult): void {\n\t\tthis.summaryTree[key] = summarizeResult.summary;\n\t\tthis.summaryStats = mergeStats(this.summaryStats, summarizeResult.stats);\n\t}\n\n\tpublic addAttachment(id: string) {\n\t\tthis.summaryTree[this.attachmentCounter++] = { id, type: SummaryType.Attachment };\n\t}\n\n\tpublic getSummaryTree(): ISummaryTreeWithStats {\n\t\treturn { summary: this.summary, stats: this.stats };\n\t}\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @legacy\n * @alpha\n */\nexport function convertToSummaryTreeWithStats(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const entry of snapshot.entries) {\n\t\tswitch (entry.type) {\n\t\t\tcase TreeEntry.Blob: {\n\t\t\t\tconst blob = entry.value;\n\t\t\t\tconst content =\n\t\t\t\t\tblob.encoding === \"base64\" ? IsoBuffer.from(blob.contents, \"base64\") : blob.contents;\n\t\t\t\tbuilder.addBlob(entry.path, content);\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Tree: {\n\t\t\t\tconst subtree = convertToSummaryTree(entry.value, fullTree);\n\t\t\t\tbuilder.addWithStats(entry.path, subtree);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Attachment: {\n\t\t\t\tconst id = entry.value.id;\n\t\t\t\tbuilder.addAttachment(id);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tthrow new Error(\"Unexpected TreeEntry type\");\n\t\t}\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @internal\n */\nexport function convertToSummaryTree(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummarizeResult {\n\t// eslint-disable-next-line @typescript-eslint/strict-boolean-expressions\n\tif (snapshot.id && !fullTree) {\n\t\tconst stats = mergeStats();\n\t\tstats.handleNodeCount++;\n\t\treturn {\n\t\t\tsummary: {\n\t\t\t\thandle: snapshot.id,\n\t\t\t\thandleType: SummaryType.Tree,\n\t\t\t\ttype: SummaryType.Handle,\n\t\t\t},\n\t\t\tstats,\n\t\t};\n\t} else {\n\t\treturn convertToSummaryTreeWithStats(snapshot, fullTree);\n\t}\n}\n\n/**\n * Converts ISnapshotTree to ISummaryTree format and tracks stats. This snapshot tree was\n * was taken by serialize api in detached container.\n * @param snapshot - snapshot in ISnapshotTree format\n * @internal\n */\nexport function convertSnapshotTreeToSummaryTree(\n\tsnapshot: ISnapshotTreeWithBlobContents,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const [path, id] of Object.entries(snapshot.blobs)) {\n\t\tlet decoded: string | undefined;\n\t\tif (snapshot.blobsContents !== undefined) {\n\t\t\t// TODO Why are we non null asserting here?\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tconst content: ArrayBufferLike = snapshot.blobsContents[id]!;\n\t\t\tif (content !== undefined) {\n\t\t\t\tdecoded = bufferToString(content, \"utf-8\");\n\t\t\t}\n\t\t\t// 0.44 back-compat We still put contents in same blob for back-compat so need to add blob\n\t\t\t// only for blobPath -> blobId mapping and not for blobId -> blob value contents.\n\t\t} else if (snapshot.blobs[id] !== undefined) {\n\t\t\t// Non null asserting here because of the undefined check above\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tdecoded = fromBase64ToUtf8(snapshot.blobs[id]!);\n\t\t}\n\t\tif (decoded !== undefined) {\n\t\t\tbuilder.addBlob(path, decoded);\n\t\t}\n\t}\n\n\tfor (const [key, tree] of Object.entries(snapshot.trees)) {\n\t\tconst subtree = convertSnapshotTreeToSummaryTree(tree);\n\t\tbuilder.addWithStats(key, subtree);\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts ISummaryTree to ITree format. This is needed for back-compat while we get rid of snapshot.\n * @param summaryTree - summary tree in ISummaryTree format\n * @internal\n */\nexport function convertSummaryTreeToITree(summaryTree: ISummaryTree): ITree {\n\tconst entries: ITreeEntry[] = [];\n\tfor (const [key, value] of Object.entries(summaryTree.tree)) {\n\t\tswitch (value.type) {\n\t\t\tcase SummaryType.Blob: {\n\t\t\t\tlet parsedContent: string;\n\t\t\t\tlet encoding: \"utf-8\" | \"base64\" = \"utf-8\";\n\t\t\t\tif (typeof value.content === \"string\") {\n\t\t\t\t\tparsedContent = value.content;\n\t\t\t\t} else {\n\t\t\t\t\tparsedContent = Uint8ArrayToString(value.content, \"base64\");\n\t\t\t\t\tencoding = \"base64\";\n\t\t\t\t}\n\t\t\t\tentries.push(new BlobTreeEntry(key, parsedContent, encoding));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Tree: {\n\t\t\t\tentries.push(new TreeTreeEntry(key, convertSummaryTreeToITree(value)));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Attachment: {\n\t\t\t\tentries.push(new AttachmentTreeEntry(key, value.id));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Handle: {\n\t\t\t\tthrow new Error(\"Should not have Handle type in summary tree\");\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tunreachableCase(value, \"Unexpected summary tree type\");\n\t\t}\n\t}\n\treturn {\n\t\tentries,\n\t\tunreferenced: summaryTree.unreferenced,\n\t\tgroupId: summaryTree.groupId,\n\t};\n}\n\n/**\n * Looks in the given attach message snapshot for the .gcdata blob, which would\n * contain the initial GC Data for the node being attached.\n * If it finds it, it notifies GC of all the new outbound routes being added by the attach.\n *\n * @param snapshot - The snapshot from the attach message\n * @param addedGCOutboundRoute - Callback to notify GC of a new outbound route.\n * IMPORTANT: addedGCOutboundRoute's param nodeId is \"/\" for the attaching node itself, or \"/<id>\" for its children.\n *\n * @returns true if it found/processed GC Data, false otherwise\n *\n * @internal\n */\nexport function processAttachMessageGCData(\n\tsnapshot: ITree | null,\n\taddedGCOutboundRoute: (fromNodeId: string, toPath: string) => void,\n): boolean {\n\tconst gcDataEntry = snapshot?.entries.find((e) => e.path === gcDataBlobKey);\n\n\t// Old attach messages won't have GC Data\n\t// (And REALLY old DataStore Attach messages won't even have a snapshot!)\n\tif (gcDataEntry === undefined) {\n\t\treturn false;\n\t}\n\n\tassert(\n\t\tgcDataEntry.type === TreeEntry.Blob && gcDataEntry.value.encoding === \"utf-8\",\n\t\t0x8ff /* GC data should be a utf-8-encoded blob */,\n\t);\n\n\tconst gcData = JSON.parse(gcDataEntry.value.contents) as IGarbageCollectionData;\n\tfor (const [nodeId, outboundRoutes] of Object.entries(gcData.gcNodes)) {\n\t\toutboundRoutes.forEach((toPath) => {\n\t\t\taddedGCOutboundRoute(nodeId, toPath);\n\t\t});\n\t}\n\treturn true;\n}\n\n/**\n * @internal\n */\nexport class TelemetryContext implements ITelemetryContext, ITelemetryContextExt {\n\tprivate readonly telemetry = new Map<string, TelemetryEventPropertyTypeExt>();\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.set}\n\t */\n\tset(prefix: string, property: string, value: TelemetryEventPropertyTypeExt): void {\n\t\tthis.telemetry.set(`${prefix}${property}`, value);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.setMultiple}\n\t */\n\tsetMultiple(\n\t\tprefix: string,\n\t\tproperty: string,\n\t\tvalues: Record<string, TelemetryEventPropertyTypeExt>,\n\t): void {\n\t\t// Set the values individually so that they are logged as a flat list along with other properties.\n\t\tfor (const key of Object.keys(values)) {\n\t\t\tthis.set(prefix, `${property}_${key}`, values[key]);\n\t\t}\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.get}\n\t */\n\tget(prefix: string, property: string): TelemetryEventPropertyTypeExt {\n\t\treturn this.telemetry.get(`${prefix}${property}`);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.serialize}\n\t */\n\tserialize(): string {\n\t\tconst jsonObject = {};\n\t\tthis.telemetry.forEach((value, key) => {\n\t\t\tjsonObject[key] = value;\n\t\t});\n\t\treturn JSON.stringify(jsonObject);\n\t}\n}\n\n/**\n * Trims the leading slashes from the given string.\n * @param str - A string that may contain leading slashes.\n * @returns A new string without leading slashes.\n */\nfunction trimLeadingSlashes(str: string) {\n\treturn str.replace(/^\\/+/g, \"\");\n}\n\n/**\n * Trims the trailing slashes from the given string.\n * @param str - A string that may contain trailing slashes.\n * @returns A new string without trailing slashes.\n */\nfunction trimTrailingSlashes(str: string) {\n\treturn str.replace(/\\/+$/g, \"\");\n}\n\n/**\n * Helper class to build the garbage collection data of a node by combining the data from multiple nodes.\n * @internal\n */\nexport class GCDataBuilder implements IGarbageCollectionData {\n\tprivate readonly gcNodesSet: { [id: string]: Set<string> } = {};\n\tpublic get gcNodes(): { [id: string]: string[] } {\n\t\tconst gcNodes = {};\n\t\tfor (const [nodeId, outboundRoutes] of Object.entries(this.gcNodesSet)) {\n\t\t\tgcNodes[nodeId] = [...outboundRoutes];\n\t\t}\n\t\treturn gcNodes;\n\t}\n\n\tpublic addNode(id: string, outboundRoutes: string[]) {\n\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t}\n\n\t/**\n\t * Adds the given GC nodes. It does the following:\n\t * - Normalizes the ids of the given nodes.\n\t * - Prefixes the given `prefixId` to the given nodes' ids.\n\t * - Adds the outbound routes of the nodes against the normalized and prefixed id.\n\t */\n\tpublic prefixAndAddNodes(prefixId: string, gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\t// Remove any leading slashes from the id.\n\t\t\tlet normalizedId = trimLeadingSlashes(id);\n\t\t\t// Prefix the given id to the normalized id.\n\t\t\tnormalizedId = `/${prefixId}/${normalizedId}`;\n\t\t\t// Remove any trailing slashes from the normalized id. Note that the trailing slashes are removed after\n\t\t\t// adding the prefix for handling the special case where id is \"/\".\n\t\t\tnormalizedId = trimTrailingSlashes(normalizedId);\n\n\t\t\t// Add the outbound routes against the normalized and prefixed id without duplicates.\n\t\t\tthis.gcNodesSet[normalizedId] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\tpublic addNodes(gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\t/**\n\t * Adds the given outbound route to the outbound routes of all GC nodes.\n\t */\n\tpublic addRouteToAllNodes(outboundRoute: string) {\n\t\tfor (const outboundRoutes of Object.values(this.gcNodesSet)) {\n\t\t\toutboundRoutes.add(outboundRoute);\n\t\t}\n\t}\n\n\tpublic getGCData(): IGarbageCollectionData {\n\t\treturn {\n\t\t\tgcNodes: this.gcNodes,\n\t\t};\n\t}\n}\n"]}
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* Copyright (c) Microsoft Corporation and contributors. All rights reserved.\n * Licensed under the MIT License.\n */\n\nimport {\n\tIsoBuffer,\n\tUint8ArrayToString,\n\tbufferToString,\n\tfromBase64ToUtf8,\n} from \"@fluid-internal/client-utils\";\nimport { ISnapshotTreeWithBlobContents } from \"@fluidframework/container-definitions/internal\";\nimport { assert, unreachableCase } from \"@fluidframework/core-utils/internal\";\nimport {\n\tISummaryBlob,\n\tISummaryTree,\n\tSummaryObject,\n\tSummaryType,\n} from \"@fluidframework/driver-definitions\";\nimport { ITree, ITreeEntry, TreeEntry } from \"@fluidframework/driver-definitions/internal\";\nimport {\n\tAttachmentTreeEntry,\n\tBlobTreeEntry,\n\tTreeTreeEntry,\n} from \"@fluidframework/driver-utils/internal\";\nimport {\n\tISummaryStats,\n\tISummaryTreeWithStats,\n\tITelemetryContext,\n\tIGarbageCollectionData,\n\tISummarizeResult,\n\tITelemetryContextExt,\n\tgcDataBlobKey,\n} from \"@fluidframework/runtime-definitions/internal\";\nimport type { TelemetryEventPropertyTypeExt } from \"@fluidframework/telemetry-utils/internal\";\n\n/**\n * Combines summary stats by adding their totals together.\n * Returns empty stats if called without args.\n * @param stats - stats to merge\n * @internal\n */\nexport function mergeStats(...stats: ISummaryStats[]): ISummaryStats {\n\tconst results = {\n\t\ttreeNodeCount: 0,\n\t\tblobNodeCount: 0,\n\t\thandleNodeCount: 0,\n\t\ttotalBlobSize: 0,\n\t\tunreferencedBlobSize: 0,\n\t};\n\tfor (const stat of stats) {\n\t\tresults.treeNodeCount += stat.treeNodeCount;\n\t\tresults.blobNodeCount += stat.blobNodeCount;\n\t\tresults.handleNodeCount += stat.handleNodeCount;\n\t\tresults.totalBlobSize += stat.totalBlobSize;\n\t\tresults.unreferencedBlobSize += stat.unreferencedBlobSize;\n\t}\n\treturn results;\n}\n\n/**\n * @internal\n */\nexport function utf8ByteLength(str: string): number {\n\t// returns the byte length of an utf8 string\n\tlet s = str.length;\n\tfor (let i = str.length - 1; i >= 0; i--) {\n\t\tconst code = str.charCodeAt(i);\n\t\tif (code > 0x7f && code <= 0x7ff) {\n\t\t\ts++;\n\t\t} else if (code > 0x7ff && code <= 0xffff) {\n\t\t\ts += 2;\n\t\t}\n\t\tif (code >= 0xdc00 && code <= 0xdfff) {\n\t\t\ti--; // trail surrogate\n\t\t}\n\t}\n\treturn s;\n}\n\n/**\n * @internal\n */\nexport function getBlobSize(content: ISummaryBlob[\"content\"]): number {\n\treturn typeof content === \"string\" ? utf8ByteLength(content) : content.byteLength;\n}\n\nfunction calculateStatsCore(summaryObject: SummaryObject, stats: ISummaryStats): void {\n\tswitch (summaryObject.type) {\n\t\tcase SummaryType.Tree: {\n\t\t\tstats.treeNodeCount++;\n\t\t\tfor (const value of Object.values(summaryObject.tree)) {\n\t\t\t\tcalculateStatsCore(value, stats);\n\t\t\t}\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Handle: {\n\t\t\tstats.handleNodeCount++;\n\t\t\treturn;\n\t\t}\n\t\tcase SummaryType.Blob: {\n\t\t\tstats.blobNodeCount++;\n\t\t\tstats.totalBlobSize += getBlobSize(summaryObject.content);\n\t\t\treturn;\n\t\t}\n\t\tdefault:\n\t\t\treturn;\n\t}\n}\n\n/**\n * @internal\n */\nexport function calculateStats(summary: SummaryObject): ISummaryStats {\n\tconst stats = mergeStats();\n\tcalculateStatsCore(summary, stats);\n\treturn stats;\n}\n\n/**\n * @internal\n */\nexport function addBlobToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tcontent: string | Uint8Array,\n): void {\n\tconst blob: ISummaryBlob = {\n\t\ttype: SummaryType.Blob,\n\t\tcontent,\n\t};\n\tsummary.summary.tree[key] = blob;\n\tsummary.stats.blobNodeCount++;\n\tsummary.stats.totalBlobSize += getBlobSize(content);\n}\n\n/**\n * @internal\n */\nexport function addSummarizeResultToSummary(\n\tsummary: ISummaryTreeWithStats,\n\tkey: string,\n\tsummarizeResult: ISummarizeResult,\n): void {\n\tsummary.summary.tree[key] = summarizeResult.summary;\n\tsummary.stats = mergeStats(summary.stats, summarizeResult.stats);\n}\n\n/**\n * An object who's properties are used to initialize a {@link SummaryTreeBuilder}\n * @legacy\n * @alpha\n */\nexport interface SummaryTreeBuilderParams {\n\t/**\n\t * This value will become the {@link @fluidframework/driver-definitions#ISummaryTree.groupId}\n\t * of the {@link @fluidframework/driver-definitions#ISummaryTree} built by the {@link SummaryTreeBuilder}.\n\t */\n\tgroupId?: string;\n}\n/**\n * A helper class for building summary trees.\n * @remarks Uses the builder pattern.\n * @legacy\n * @alpha\n */\nexport class SummaryTreeBuilder implements ISummaryTreeWithStats {\n\tprivate attachmentCounter: number = 0;\n\tprivate readonly groupId?: string;\n\n\tpublic get summary(): ISummaryTree {\n\t\tconst summary: ISummaryTree = {\n\t\t\ttype: SummaryType.Tree,\n\t\t\ttree: { ...this.summaryTree },\n\t\t};\n\t\tif (this.groupId !== undefined) {\n\t\t\tsummary.groupId = this.groupId;\n\t\t}\n\t\treturn summary;\n\t}\n\n\tpublic get stats(): Readonly<ISummaryStats> {\n\t\treturn { ...this.summaryStats };\n\t}\n\n\tconstructor(params?: { groupId?: string }) {\n\t\tthis.summaryStats = mergeStats();\n\t\tthis.summaryStats.treeNodeCount++;\n\t\tthis.groupId = params?.groupId;\n\t}\n\n\tprivate readonly summaryTree: { [path: string]: SummaryObject } = {};\n\tprivate summaryStats: ISummaryStats;\n\n\t/**\n\t * Add a blob to the summary tree. This blob will be stored at the given key in the summary tree.\n\t * @param key - The key to store the blob at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * @param content - The content of the blob to be added to the summary tree.\n\t */\n\tpublic addBlob(key: string, content: string | Uint8Array): void {\n\t\t// Prevent cloning by directly referencing underlying private properties\n\t\taddBlobToSummary(\n\t\t\t{\n\t\t\t\tsummary: {\n\t\t\t\t\ttype: SummaryType.Tree,\n\t\t\t\t\ttree: this.summaryTree,\n\t\t\t\t},\n\t\t\t\tstats: this.summaryStats,\n\t\t\t},\n\t\t\tkey,\n\t\t\tcontent,\n\t\t);\n\t}\n\n\t/**\n\t * Adds an {@link @fluidframework/driver-definitions#ISummaryHandle} that references a subtree, blob, or attachment in a previous summary.\n\t *\n\t * @remarks\n\t * There are special limitations to both the key and handle parameters: We use encodeURIComponent and decodeURIComponent to encode and decode the key and handle parameters after they are added to the summary tree. This means that the key and handle parameters must be valid URI components. If they are not, the encoding and decoding will fail and the summary will not be generated correctly.\n\t *\n\t * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * @param handleType - the type of {@link @fluidframework/driver-definitions#SummaryObject} besides a SummaryHandle, i.e. {@link @fluidframework/driver-definitions#SummaryType.Tree}, {@link @fluidframework/driver-definitions#SummaryType.Blob}, {@link @fluidframework/driver-definitions#SummaryType.Attachment}\n\t * @param handle - The path pointing to the part of the previous summary being used to duplicate the data. Use {@link @fluidframework/driver-definitions#ISummaryHandle.handle} to help generate proper handle strings. Should not contain any \"/\" characters.\n\t */\n\tpublic addHandle(\n\t\tkey: string,\n\t\thandleType: SummaryType.Tree | SummaryType.Blob | SummaryType.Attachment,\n\t\thandle: string,\n\t): void {\n\t\tthis.summaryTree[key] = {\n\t\t\ttype: SummaryType.Handle,\n\t\t\thandleType,\n\t\t\thandle,\n\t\t};\n\t\tthis.summaryStats.handleNodeCount++;\n\t}\n\n\t/**\n\t * Adds a child and updates the stats accordingly.\n\t * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any \"/\" characters.\n\t * The key should be unique within the current summary tree, and not transform when encodeURIComponent is called.\n\t * @param summarizeResult - Similar to {@link @fluidframework/runtime-definitions#ISummaryTreeWithStats}. The provided summary can be either a {@link @fluidframework/driver-definitions#ISummaryHandle} or {@link @fluidframework/driver-definitions#ISummaryTree}.\n\t */\n\tpublic addWithStats(key: string, summarizeResult: ISummarizeResult): void {\n\t\tthis.summaryTree[key] = summarizeResult.summary;\n\t\tthis.summaryStats = mergeStats(this.summaryStats, summarizeResult.stats);\n\t}\n\n\t/**\n\t * Adds an {@link @fluidframework/driver-definitions#ISummaryAttachment} to the summary. This blob needs to already be uploaded to storage.\n\t * @param id - The id of the uploaded attachment to be added to the summary tree.\n\t */\n\tpublic addAttachment(id: string) {\n\t\tthis.summaryTree[this.attachmentCounter++] = { id, type: SummaryType.Attachment };\n\t}\n\n\t/**\n\t * Gives you the in-memory summary tree with stats built by the SummaryTreeBuilder.\n\t *\n\t * @remarks\n\t * Use this once you're done building the summary tree, the stats should automatically be generated.\n\t * @returns The summary tree and stats built by the SummaryTreeBuilder.\n\t */\n\tpublic getSummaryTree(): ISummaryTreeWithStats {\n\t\treturn { summary: this.summary, stats: this.stats };\n\t}\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @legacy\n * @alpha\n */\nexport function convertToSummaryTreeWithStats(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const entry of snapshot.entries) {\n\t\tswitch (entry.type) {\n\t\t\tcase TreeEntry.Blob: {\n\t\t\t\tconst blob = entry.value;\n\t\t\t\tconst content =\n\t\t\t\t\tblob.encoding === \"base64\" ? IsoBuffer.from(blob.contents, \"base64\") : blob.contents;\n\t\t\t\tbuilder.addBlob(entry.path, content);\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Tree: {\n\t\t\t\tconst subtree = convertToSummaryTree(entry.value, fullTree);\n\t\t\t\tbuilder.addWithStats(entry.path, subtree);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase TreeEntry.Attachment: {\n\t\t\t\tconst id = entry.value.id;\n\t\t\t\tbuilder.addAttachment(id);\n\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tthrow new Error(\"Unexpected TreeEntry type\");\n\t\t}\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts snapshot ITree to ISummaryTree format and tracks stats.\n * @param snapshot - snapshot in ITree format\n * @param fullTree - true to never use handles, even if id is specified\n * @internal\n */\nexport function convertToSummaryTree(\n\tsnapshot: ITree,\n\tfullTree: boolean = false,\n): ISummarizeResult {\n\t// eslint-disable-next-line @typescript-eslint/strict-boolean-expressions\n\tif (snapshot.id && !fullTree) {\n\t\tconst stats = mergeStats();\n\t\tstats.handleNodeCount++;\n\t\treturn {\n\t\t\tsummary: {\n\t\t\t\thandle: snapshot.id,\n\t\t\t\thandleType: SummaryType.Tree,\n\t\t\t\ttype: SummaryType.Handle,\n\t\t\t},\n\t\t\tstats,\n\t\t};\n\t} else {\n\t\treturn convertToSummaryTreeWithStats(snapshot, fullTree);\n\t}\n}\n\n/**\n * Converts ISnapshotTree to ISummaryTree format and tracks stats. This snapshot tree was\n * was taken by serialize api in detached container.\n * @param snapshot - snapshot in ISnapshotTree format\n * @internal\n */\nexport function convertSnapshotTreeToSummaryTree(\n\tsnapshot: ISnapshotTreeWithBlobContents,\n): ISummaryTreeWithStats {\n\tconst builder = new SummaryTreeBuilder();\n\tfor (const [path, id] of Object.entries(snapshot.blobs)) {\n\t\tlet decoded: string | undefined;\n\t\tif (snapshot.blobsContents !== undefined) {\n\t\t\t// TODO Why are we non null asserting here?\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tconst content: ArrayBufferLike = snapshot.blobsContents[id]!;\n\t\t\tif (content !== undefined) {\n\t\t\t\tdecoded = bufferToString(content, \"utf-8\");\n\t\t\t}\n\t\t\t// 0.44 back-compat We still put contents in same blob for back-compat so need to add blob\n\t\t\t// only for blobPath -> blobId mapping and not for blobId -> blob value contents.\n\t\t} else if (snapshot.blobs[id] !== undefined) {\n\t\t\t// Non null asserting here because of the undefined check above\n\t\t\t// eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n\t\t\tdecoded = fromBase64ToUtf8(snapshot.blobs[id]!);\n\t\t}\n\t\tif (decoded !== undefined) {\n\t\t\tbuilder.addBlob(path, decoded);\n\t\t}\n\t}\n\n\tfor (const [key, tree] of Object.entries(snapshot.trees)) {\n\t\tconst subtree = convertSnapshotTreeToSummaryTree(tree);\n\t\tbuilder.addWithStats(key, subtree);\n\t}\n\n\tconst summaryTree = builder.getSummaryTree();\n\tsummaryTree.summary.unreferenced = snapshot.unreferenced;\n\tsummaryTree.summary.groupId = snapshot.groupId;\n\treturn summaryTree;\n}\n\n/**\n * Converts ISummaryTree to ITree format. This is needed for back-compat while we get rid of snapshot.\n * @param summaryTree - summary tree in ISummaryTree format\n * @internal\n */\nexport function convertSummaryTreeToITree(summaryTree: ISummaryTree): ITree {\n\tconst entries: ITreeEntry[] = [];\n\tfor (const [key, value] of Object.entries(summaryTree.tree)) {\n\t\tswitch (value.type) {\n\t\t\tcase SummaryType.Blob: {\n\t\t\t\tlet parsedContent: string;\n\t\t\t\tlet encoding: \"utf-8\" | \"base64\" = \"utf-8\";\n\t\t\t\tif (typeof value.content === \"string\") {\n\t\t\t\t\tparsedContent = value.content;\n\t\t\t\t} else {\n\t\t\t\t\tparsedContent = Uint8ArrayToString(value.content, \"base64\");\n\t\t\t\t\tencoding = \"base64\";\n\t\t\t\t}\n\t\t\t\tentries.push(new BlobTreeEntry(key, parsedContent, encoding));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Tree: {\n\t\t\t\tentries.push(new TreeTreeEntry(key, convertSummaryTreeToITree(value)));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Attachment: {\n\t\t\t\tentries.push(new AttachmentTreeEntry(key, value.id));\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tcase SummaryType.Handle: {\n\t\t\t\tthrow new Error(\"Should not have Handle type in summary tree\");\n\t\t\t}\n\n\t\t\tdefault:\n\t\t\t\tunreachableCase(value, \"Unexpected summary tree type\");\n\t\t}\n\t}\n\treturn {\n\t\tentries,\n\t\tunreferenced: summaryTree.unreferenced,\n\t\tgroupId: summaryTree.groupId,\n\t};\n}\n\n/**\n * Looks in the given attach message snapshot for the .gcdata blob, which would\n * contain the initial GC Data for the node being attached.\n * If it finds it, it notifies GC of all the new outbound routes being added by the attach.\n *\n * @param snapshot - The snapshot from the attach message\n * @param addedGCOutboundRoute - Callback to notify GC of a new outbound route.\n * IMPORTANT: addedGCOutboundRoute's param nodeId is \"/\" for the attaching node itself, or \"/<id>\" for its children.\n *\n * @returns true if it found/processed GC Data, false otherwise\n *\n * @internal\n */\nexport function processAttachMessageGCData(\n\tsnapshot: ITree | null,\n\taddedGCOutboundRoute: (fromNodeId: string, toPath: string) => void,\n): boolean {\n\tconst gcDataEntry = snapshot?.entries.find((e) => e.path === gcDataBlobKey);\n\n\t// Old attach messages won't have GC Data\n\t// (And REALLY old DataStore Attach messages won't even have a snapshot!)\n\tif (gcDataEntry === undefined) {\n\t\treturn false;\n\t}\n\n\tassert(\n\t\tgcDataEntry.type === TreeEntry.Blob && gcDataEntry.value.encoding === \"utf-8\",\n\t\t0x8ff /* GC data should be a utf-8-encoded blob */,\n\t);\n\n\tconst gcData = JSON.parse(gcDataEntry.value.contents) as IGarbageCollectionData;\n\tfor (const [nodeId, outboundRoutes] of Object.entries(gcData.gcNodes)) {\n\t\toutboundRoutes.forEach((toPath) => {\n\t\t\taddedGCOutboundRoute(nodeId, toPath);\n\t\t});\n\t}\n\treturn true;\n}\n\n/**\n * @internal\n */\nexport class TelemetryContext implements ITelemetryContext, ITelemetryContextExt {\n\tprivate readonly telemetry = new Map<string, TelemetryEventPropertyTypeExt>();\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.set}\n\t */\n\tset(prefix: string, property: string, value: TelemetryEventPropertyTypeExt): void {\n\t\tthis.telemetry.set(`${prefix}${property}`, value);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.setMultiple}\n\t */\n\tsetMultiple(\n\t\tprefix: string,\n\t\tproperty: string,\n\t\tvalues: Record<string, TelemetryEventPropertyTypeExt>,\n\t): void {\n\t\t// Set the values individually so that they are logged as a flat list along with other properties.\n\t\tfor (const key of Object.keys(values)) {\n\t\t\tthis.set(prefix, `${property}_${key}`, values[key]);\n\t\t}\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.get}\n\t */\n\tget(prefix: string, property: string): TelemetryEventPropertyTypeExt {\n\t\treturn this.telemetry.get(`${prefix}${property}`);\n\t}\n\n\t/**\n\t * {@inheritDoc @fluidframework/runtime-definitions#ITelemetryContext.serialize}\n\t */\n\tserialize(): string {\n\t\tconst jsonObject = {};\n\t\tthis.telemetry.forEach((value, key) => {\n\t\t\tjsonObject[key] = value;\n\t\t});\n\t\treturn JSON.stringify(jsonObject);\n\t}\n}\n\n/**\n * Trims the leading slashes from the given string.\n * @param str - A string that may contain leading slashes.\n * @returns A new string without leading slashes.\n */\nfunction trimLeadingSlashes(str: string) {\n\treturn str.replace(/^\\/+/g, \"\");\n}\n\n/**\n * Trims the trailing slashes from the given string.\n * @param str - A string that may contain trailing slashes.\n * @returns A new string without trailing slashes.\n */\nfunction trimTrailingSlashes(str: string) {\n\treturn str.replace(/\\/+$/g, \"\");\n}\n\n/**\n * Helper class to build the garbage collection data of a node by combining the data from multiple nodes.\n * @internal\n */\nexport class GCDataBuilder implements IGarbageCollectionData {\n\tprivate readonly gcNodesSet: { [id: string]: Set<string> } = {};\n\tpublic get gcNodes(): { [id: string]: string[] } {\n\t\tconst gcNodes = {};\n\t\tfor (const [nodeId, outboundRoutes] of Object.entries(this.gcNodesSet)) {\n\t\t\tgcNodes[nodeId] = [...outboundRoutes];\n\t\t}\n\t\treturn gcNodes;\n\t}\n\n\tpublic addNode(id: string, outboundRoutes: string[]) {\n\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t}\n\n\t/**\n\t * Adds the given GC nodes. It does the following:\n\t * - Normalizes the ids of the given nodes.\n\t * - Prefixes the given `prefixId` to the given nodes' ids.\n\t * - Adds the outbound routes of the nodes against the normalized and prefixed id.\n\t */\n\tpublic prefixAndAddNodes(prefixId: string, gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\t// Remove any leading slashes from the id.\n\t\t\tlet normalizedId = trimLeadingSlashes(id);\n\t\t\t// Prefix the given id to the normalized id.\n\t\t\tnormalizedId = `/${prefixId}/${normalizedId}`;\n\t\t\t// Remove any trailing slashes from the normalized id. Note that the trailing slashes are removed after\n\t\t\t// adding the prefix for handling the special case where id is \"/\".\n\t\t\tnormalizedId = trimTrailingSlashes(normalizedId);\n\n\t\t\t// Add the outbound routes against the normalized and prefixed id without duplicates.\n\t\t\tthis.gcNodesSet[normalizedId] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\tpublic addNodes(gcNodes: { [id: string]: string[] }) {\n\t\tfor (const [id, outboundRoutes] of Object.entries(gcNodes)) {\n\t\t\tthis.gcNodesSet[id] = new Set(outboundRoutes);\n\t\t}\n\t}\n\n\t/**\n\t * Adds the given outbound route to the outbound routes of all GC nodes.\n\t */\n\tpublic addRouteToAllNodes(outboundRoute: string) {\n\t\tfor (const outboundRoutes of Object.values(this.gcNodesSet)) {\n\t\t\toutboundRoutes.add(outboundRoute);\n\t\t}\n\t}\n\n\tpublic getGCData(): IGarbageCollectionData {\n\t\treturn {\n\t\t\tgcNodes: this.gcNodes,\n\t\t};\n\t}\n}\n"]}

package.json

 {
   "name": "@fluidframework/runtime-utils",
-  "version": "2.10.0-305357",
+  "version": "2.10.0-306579",
   "description": "Collection of utility functions for Fluid Runtime",
@@ -72,12 +72,12 @@ "homepage": "https://fluidframework.com",
   "dependencies": {
-    "@fluid-internal/client-utils": "2.10.0-305357",
-    "@fluidframework/container-definitions": "2.10.0-305357",
-    "@fluidframework/container-runtime-definitions": "2.10.0-305357",
-    "@fluidframework/core-interfaces": "2.10.0-305357",
-    "@fluidframework/core-utils": "2.10.0-305357",
-    "@fluidframework/datastore-definitions": "2.10.0-305357",
-    "@fluidframework/driver-definitions": "2.10.0-305357",
-    "@fluidframework/driver-utils": "2.10.0-305357",
-    "@fluidframework/runtime-definitions": "2.10.0-305357",
-    "@fluidframework/telemetry-utils": "2.10.0-305357"
+    "@fluid-internal/client-utils": "2.10.0-306579",
+    "@fluidframework/container-definitions": "2.10.0-306579",
+    "@fluidframework/container-runtime-definitions": "2.10.0-306579",
+    "@fluidframework/core-interfaces": "2.10.0-306579",
+    "@fluidframework/core-utils": "2.10.0-306579",
+    "@fluidframework/datastore-definitions": "2.10.0-306579",
+    "@fluidframework/driver-definitions": "2.10.0-306579",
+    "@fluidframework/driver-utils": "2.10.0-306579",
+    "@fluidframework/runtime-definitions": "2.10.0-306579",
+    "@fluidframework/telemetry-utils": "2.10.0-306579"
   },
@@ -87,3 +87,3 @@ "devDependencies": {
     "@biomejs/biome": "~1.9.3",
-    "@fluid-internal/mocha-test-setup": "2.10.0-305357",
+    "@fluid-internal/mocha-test-setup": "2.10.0-306579",
     "@fluid-tools/build-cli": "^0.50.0",
@@ -90,0 +90,0 @@ "@fluidframework/build-common": "^2.0.3",

src/summaryUtils.ts

@@ -162,2 +162,4 @@ /*!
 /**
+ * A helper class for building summary trees.
+ * @remarks Uses the builder pattern.
  * @legacy
@@ -194,2 +196,7 @@ * @alpha
 
+	/**
+	 * Add a blob to the summary tree. This blob will be stored at the given key in the summary tree.
+	 * @param key - The key to store the blob at in the current summary tree being generated. Should not contain any "/" characters.
+	 * @param content - The content of the blob to be added to the summary tree.
+	 */
 	public addBlob(key: string, content: string | Uint8Array): void {
@@ -233,2 +240,8 @@ // Prevent cloning by directly referencing underlying private properties
 
+	/**
+	 * Adds a child and updates the stats accordingly.
+	 * @param key - The key to store the handle at in the current summary tree being generated. Should not contain any "/" characters.
+	 * The key should be unique within the current summary tree, and not transform when encodeURIComponent is called.
+	 * @param summarizeResult - Similar to {@link @fluidframework/runtime-definitions#ISummaryTreeWithStats}. The provided summary can be either a {@link @fluidframework/driver-definitions#ISummaryHandle} or {@link @fluidframework/driver-definitions#ISummaryTree}.
+	 */
 	public addWithStats(key: string, summarizeResult: ISummarizeResult): void {
@@ -239,2 +252,6 @@ this.summaryTree[key] = summarizeResult.summary;
 
+	/**
+	 * Adds an {@link @fluidframework/driver-definitions#ISummaryAttachment} to the summary. This blob needs to already be uploaded to storage.
+	 * @param id - The id of the uploaded attachment to be added to the summary tree.
+	 */
 	public addAttachment(id: string) {
@@ -244,2 +261,9 @@ this.summaryTree[this.attachmentCounter++] = { id, type: SummaryType.Attachment };
 
+	/**
+	 * Gives you the in-memory summary tree with stats built by the SummaryTreeBuilder.
+	 *
+	 * @remarks
+	 * Use this once you're done building the summary tree, the stats should automatically be generated.
+	 * @returns The summary tree and stats built by the SummaryTreeBuilder.
+	 */
 	public getSummaryTree(): ISummaryTreeWithStats {
@@ -246,0 +270,0 @@ return { summary: this.summary, stats: this.stats };

New alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Fixed alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

393851

2.88%

Lines of code

4632

2.73%

Worsened metrics

Number of low supply chain risk alerts

8

60%

Dependency changes

• + Added

  @fluid-internal/client-utils@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/container-definitions@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/container-runtime-definitions@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/core-interfaces@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/core-utils@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/datastore-definitions@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/driver-definitions@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/driver-utils@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/id-compressor@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/runtime-definitions@2.10.0-306579
  (transitive)

• + Added

  @fluidframework/telemetry-utils@2.10.0-306579
  (transitive)

• - Removed

  @fluid-internal/client-utils@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/container-definitions@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/container-runtime-definitions@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/core-interfaces@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/core-utils@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/datastore-definitions@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/driver-definitions@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/driver-utils@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/id-compressor@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/runtime-definitions@2.10.0-305357
  (transitive)

• - Removed

  @fluidframework/telemetry-utils@2.10.0-305357
  (transitive)

• Updated

  @fluid-internal/client-utils@2.10.0-306579

• Updated

  @fluidframework/container-definitions@2.10.0-306579

• Updated

  @fluidframework/container-runtime-definitions@2.10.0-306579

• Updated

  @fluidframework/core-interfaces@2.10.0-306579

• Updated

  @fluidframework/core-utils@2.10.0-306579

• Updated

  @fluidframework/datastore-definitions@2.10.0-306579

• Updated

  @fluidframework/driver-definitions@2.10.0-306579

• Updated

  @fluidframework/driver-utils@2.10.0-306579

• Updated

  @fluidframework/runtime-definitions@2.10.0-306579

• Updated

  @fluidframework/telemetry-utils@2.10.0-306579