viewmodel - npm Package Compare versions

Comparing version 1.5.8 to 1.5.9

lib/databases/mongodb.js

@@ -21,3 +21,4 @@ 'use strict';
     port: 27017,
-    dbName: 'context'
+    dbName: 'context'//,
+    // heartbeat: 60 * 1000
   };
@@ -67,2 +68,3 @@
       self.emit('disconnect');
+      self.stopHeartbeat();
     });
@@ -79,2 +81,6 @@
             self.emit('connect');
+
+            if (self.options.heartbeat) {
+              self.startHeartbeat();
+            }
           }
@@ -96,3 +102,34 @@ if (callback) callback(err, self);
 
+  stopHeartbeat: function () {
+    if (this.heartbeatInterval) {
+      clearInterval(this.heartbeatInterval);
+      delete this.heartbeatInterval;
+    }
+  },
+
+  startHeartbeat: function () {
+    var self = this;
+
+    var gracePeriod = Math.round(this.options.heartbeat / 2);
+    this.heartbeatInterval = setInterval(function () {
+      var graceTimer = setTimeout(function () {
+        if (self.heartbeatInterval) {
+          console.error((new Error ('Heartbeat timeouted after ' + gracePeriod + 'ms')).stack);
+          self.db.close(function () {});
+        }
+      }, gracePeriod);
+
+      self.db.command({ ping: 1 }, function (err) {
+        if (graceTimer) clearTimeout(graceTimer);
+        if (err) {
+          console.error(err.stack || err);
+          self.db.close(function () {});
+        }
+      });
+    }, this.options.heartbeat);
+  },
+
   disconnect: function (callback) {
+    this.stopHeartbeat();
+
     if (!this.db) {
@@ -99,0 +136,0 @@ if (callback) callback(null);

package.json

 {
   "author": "adrai",
   "name": "viewmodel",
-  "version": "1.5.8",
+  "version": "1.5.9",
   "private": false,
@@ -6,0 +6,0 @@ "main": "index.js",

releasenotes.md

@@ -0,1 +1,4 @@
+## [v1.5.9](https://github.com/adrai/node-viewmodel/compare/v1.5.8...v1.5.9)
+- mongodb: added optional heartbeat
+
 ## [v1.5.8](https://github.com/adrai/node-viewmodel/compare/v1.5.7...v1.5.8)
@@ -2,0 +5,0 @@ - mongodb: do not call ensureIndexes on clear

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Improved metrics

Total package byte prevSize

104261

increased by1.11%

Lines of code

2822

increased by1.11%

No dependency changes