cube - npm Package Compare versions

Comparing version 0.2.8 to 0.2.9

package.json

 {
   "name": "cube",
-  "version": "0.2.8",
+  "version": "0.2.9",
   "description": "A system for analyzing time series data using MongoDB and Node.",
@@ -5,0 +5,0 @@ "keywords": [

static/cubism.v1.js

 (function(exports){
-var cubism = exports.cubism = {version: "1.0.0"};
+var cubism = exports.cubism = {version: "1.3.0"};
 var cubism_id = 0;
 function cubism_identity(d) { return d; }
-cubism.option = function(name, value) {
+cubism.option = function(name, defaultValue) {
+  var values = cubism.options(name);
+  return values.length ? values[0] : defaultValue;
+};
+
+cubism.options = function(name, defaultValues) {
   var options = location.search.substring(1).split("&"),
+      values = [],
       i = -1,
@@ -12,6 +18,6 @@ n = options.length,
     if ((o = options[i].split("="))[0] == name) {
-      return decodeURIComponent(o[1]);
+      values.push(decodeURIComponent(o[1]));
     }
   }
-  return value;
+  return values.length || arguments.length < 2 ? values : defaultValues;
 };
@@ -151,3 +157,3 @@ cubism.context = function() {
 
-var cubism_contextPrototype = cubism_context.prototype;
+var cubism_contextPrototype = cubism.context.prototype = cubism_context.prototype;
 
@@ -190,5 +196,14 @@ cubism_contextPrototype.constant = function(value) {
   source.metric = function(expression) {
-    return context.metric(function(start, stop, step, callback) {
+    var sum = "sum";
+
+    var metric = context.metric(function(start, stop, step, callback) {
+      var target = expression;
+
+      // Apply the summarize, if necessary.
+      if (step !== 1e4) target = "summarize(" + target + ",'"
+          + (!(step % 36e5) ? step / 36e5 + "hour" : !(step % 6e4) ? step / 6e4 + "min" : step / 1e3 + "sec")
+          + "','" + sum + "')";
+
       d3.text(host + "/render?format=raw"
-          + "&target=" + encodeURIComponent("alias(" + expression + ",'')")
+          + "&target=" + encodeURIComponent("alias(" + target + ",'')")
           + "&from=" + cubism_graphiteFormatDate(start - 2 * step) // off-by-two?
@@ -200,2 +215,9 @@ + "&until=" + cubism_graphiteFormatDate(stop - 1000), function(text) {
     }, expression += "");
+
+    metric.summarize = function(_) {
+      sum = _;
+      return metric;
+    };
+
+    return metric;
   };
@@ -239,2 +261,95 @@
 }
+cubism_contextPrototype.gangliaWeb = function(config) {
+  var host = '',
+      uriPathPrefix = '/ganglia2/';
+ 
+  if (arguments.length) {
+    if (config.host) {
+      host = config.host;
+    }
+
+    if (config.uriPathPrefix) {
+      uriPathPrefix = config.uriPathPrefix;
+
+      /* Add leading and trailing slashes, as appropriate. */
+      if( uriPathPrefix[0] != '/' ) {
+        uriPathPrefix = '/' + uriPathPrefix;
+      }
+
+      if( uriPathPrefix[uriPathPrefix.length - 1] != '/' ) {
+        uriPathPrefix += '/';
+      }
+    }
+  }
+
+  var source = {},
+      context = this;
+
+  source.metric = function(metricInfo) {
+
+    /* Store the members from metricInfo into local variables. */
+    var clusterName = metricInfo.clusterName, 
+        metricName = metricInfo.metricName, 
+        hostName = metricInfo.hostName,
+        isReport = metricInfo.isReport || false,
+        titleGenerator = metricInfo.titleGenerator ||
+          /* Reasonable (not necessarily pretty) default for titleGenerator. */
+          function(unusedMetricInfo) {
+            /* unusedMetricInfo is, well, unused in this default case. */
+            return ('clusterName:' + clusterName + 
+                    ' metricName:' + metricName +
+                    (hostName ? ' hostName:' + hostName : ''));
+          },
+        onChangeCallback = metricInfo.onChangeCallback;
+    
+    /* Default to plain, simple metrics. */
+    var metricKeyName = isReport ? 'g' : 'm';
+
+    var gangliaWebMetric = context.metric(function(start, stop, step, callback) {
+
+      function constructGangliaWebRequestQueryParams() {
+        return ('c=' + clusterName +
+                '&' + metricKeyName + '=' + metricName + 
+                (hostName ? '&h=' + hostName : '') + 
+                '&cs=' + start/1000 + '&ce=' + stop/1000 + '&step=' + step/1000 + '&graphlot=1');
+      }
+
+      d3.json(host + uriPathPrefix + 'graph.php?' + constructGangliaWebRequestQueryParams(),
+        function(result) {
+          if( !result ) {
+            return callback(new Error("Unable to fetch GangliaWeb data"));
+          }
+
+          callback(null, result[0].data);
+        });
+
+    }, titleGenerator(metricInfo));
+
+    gangliaWebMetric.toString = function() {
+      return titleGenerator(metricInfo);
+    };
+
+    /* Allow users to run their custom code each time a gangliaWebMetric changes.
+     *
+     * TODO Consider abstracting away the naked Cubism call, and instead exposing 
+     * a callback that takes in the values array (maybe alongwith the original
+     * start and stop 'naked' parameters), since it's handy to have the entire
+     * dataset at your disposal (and users will likely implement onChangeCallback
+     * primarily to get at this dataset).
+     */
+    if (onChangeCallback) {
+      gangliaWebMetric.on('change', onChangeCallback);
+    }
+
+    return gangliaWebMetric;
+  };
+
+  // Returns the gangliaWeb host + uriPathPrefix.
+  source.toString = function() {
+    return host + uriPathPrefix;
+  };
+
+  return source;
+};
+
 function cubism_metric(context) {
@@ -247,2 +362,4 @@ if (!(context instanceof cubism_context)) throw new Error("invalid context");
 
+cubism.metric = cubism_metric;
+
 cubism_metricPrototype.valueAt = function() {
@@ -252,2 +369,7 @@ return NaN;
 
+cubism_metricPrototype.alias = function(name) {
+  this.toString = function() { return name; };
+  return this;
+};
+
 cubism_metricPrototype.extent = function() {
@@ -451,3 +573,3 @@ var i = 0,
     selection
-        .on("mousemove.horizon", function() { context.focus(d3.mouse(this)[0]); })
+        .on("mousemove.horizon", function() { context.focus(Math.round(d3.mouse(this)[0])); })
         .on("mouseout.horizon", function() { context.focus(null); });
@@ -529,2 +651,3 @@
             if (y1 <= 0) { negative = true; continue; }
+            if (y1 === undefined) continue;
             canvas.fillRect(i, y1 = scale(y1), 1, y0 - y1);
@@ -669,3 +792,3 @@ }
     selection
-        .on("mousemove.comparison", function() { context.focus(d3.mouse(this)[0]); })
+        .on("mousemove.comparison", function() { context.focus(Math.round(d3.mouse(this)[0])); })
         .on("mouseout.comparison", function() { context.focus(null); });
@@ -886,5 +1009,8 @@
       scale = context.scale,
-      axis_ = d3.svg.axis().scale(scale),
-      format = context.step() < 6e4 ? cubism_axisFormatSeconds : cubism_axisFormatMinutes;
+      axis_ = d3.svg.axis().scale(scale);
 
+  var format = context.step() < 6e4 ? cubism_axisFormatSeconds
+      : context.step() < 864e5 ? cubism_axisFormatMinutes
+      : cubism_axisFormatDays;
+
   function axis(selection) {
@@ -904,3 +1030,5 @@ var id = ++cubism_id,
       g.call(axis_);
-      if (!tick) tick = cloneTick();
+      if (!tick) tick = d3.select(g.node().appendChild(g.selectAll("text").node().cloneNode(true)))
+          .style("display", "none")
+          .text(null);
     });
@@ -920,8 +1048,2 @@
     });
-
-    function cloneTick() {
-      return g.select(function() { return this.appendChild(g.select("text").node().cloneNode(true)); })
-          .style("display", "none")
-          .text(null);
-    }
   }
@@ -951,5 +1073,7 @@
 var cubism_axisFormatSeconds = d3.time.format("%I:%M:%S %p"),
-    cubism_axisFormatMinutes = d3.time.format("%I:%M %p");
+    cubism_axisFormatMinutes = d3.time.format("%I:%M %p"),
+    cubism_axisFormatDays = d3.time.format("%B %d");
 cubism_contextPrototype.rule = function() {
-  var context = this;
+  var context = this,
+      metric = cubism_identity;
 
@@ -962,13 +1086,34 @@ function rule(selection) {
         .attr("class", "line")
-        .style("position", "fixed")
-        .style("top", 0)
-        .style("right", 0)
-        .style("bottom", 0)
-        .style("width", "1px")
-        .style("pointer-events", "none");
+        .call(cubism_ruleStyle);
 
+    selection.each(function(d, i) {
+      var that = this,
+          id = ++cubism_id,
+          metric_ = typeof metric === "function" ? metric.call(that, d, i) : metric;
+
+      if (!metric_) return;
+
+      function change(start, stop) {
+        var values = [];
+
+        for (var i = 0, n = context.size(); i < n; ++i) {
+          if (metric_.valueAt(i)) {
+            values.push(i);
+          }
+        }
+
+        var lines = selection.selectAll(".metric").data(values);
+        lines.exit().remove();
+        lines.enter().append("div").attr("class", "metric line").call(cubism_ruleStyle);
+        lines.style("left", cubism_ruleLeft);
+      }
+
+      context.on("change.rule-" + id, change);
+      metric_.on("change.rule-" + id, change);
+    });
+
     context.on("focus.rule-" + id, function(i) {
-      line
+      line.datum(i)
           .style("display", i == null ? "none" : null)
-          .style("left", function() { return this.parentNode.getBoundingClientRect().left + i + "px"; });
+          .style("left", i == null ? null : cubism_ruleLeft);
     });
@@ -988,4 +1133,23 @@ }
 
+  rule.metric = function(_) {
+    if (!arguments.length) return metric;
+    metric = _;
+    return rule;
+  };
+
   return rule;
 };
+
+function cubism_ruleStyle(line) {
+  line
+      .style("position", "absolute")
+      .style("top", 0)
+      .style("bottom", 0)
+      .style("width", "1px")
+      .style("pointer-events", "none");
+}
+
+function cubism_ruleLeft(i) {
+  return i + "px";
+}
 })(this);

static/cubism.v1.min.js

@@ -1,1 +0,1 @@
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No alert changes

Improved metrics

Total package byte prevSize

814248

increased by9.64%

Lines of code

19075

increased by2.36%

No dependency changes