Merge PR #618

CHANGELOG.md

@@ -16,6 +16,7 @@
 - [Issue #556](https://github.com/grafana/grafana/issues/556). Chart: New legend display option "Right side", will show legend to the right of the graph
 - [Issue #604](https://github.com/grafana/grafana/issues/604). Chart: New axis format, 'bps' (SI unit in steps of 1000) useful for network gear metics
 - [Issue #626](https://github.com/grafana/grafana/issues/626). Chart: Downscale y axis to more precise unit, value of 0.1 for seconds format will be formated as 100 ms. Thanks @kamaradclimber
+- [Issue #618](https://github.com/grafana/grafana/issues/618). OpenTSDB: Series alias option to override metric name returned from opentsdb. Thanks @heldr
 
 **Changes**
 - [Issue #536](https://github.com/grafana/grafana/issues/536). Graphite: Use unix epoch for Graphite from/to for absolute time ranges

src/app/partials/opentsdb/editor.html

@@ -43,7 +43,7 @@
         <ul class="grafana-segment-list" role="menu">
           <li>
             <input type="text"
-                   class="input-xxlarge grafana-target-segment-input"
+                   class="grafana-target-segment-input"
                    ng-model="target.metric"
                    spellcheck='false'
                    bs-typeahead="suggestMetrics"
@@ -59,6 +59,7 @@
           </li>
 					<li class="grafana-target-segment">
             Aggregator
+          </li>
           <li>
             <select ng-model="target.aggregator"
                     class="grafana-target-segment-input input-small"
@@ -88,6 +89,20 @@
                    ng-model="target.isCounter"
                    ng-change="targetBlur()">
           </li>
+          <li class="grafana-target-segment">
+            Alias:
+          </li>
+					<li>
+						<input type="text"
+                   class="grafana-target-segment-input input-medium"
+                   ng-model="target.alias"
+                   spellcheck='false'
+                   placeholder="series alias"
+                   data-min-length=0 data-items=100
+                   ng-blur="targetBlur()"
+                   />
+          </li>
+
         </ul>
 
         <div class="clearfix"></div>

src/app/services/opentsdb/opentsdbDatasource.js

@@ -15,6 +15,7 @@ function (angular, _, kbn) {
       this.editorSrc = 'app/partials/opentsdb/editor.html';
       this.url = datasource.url;
       this.name = datasource.name;
+      this.supportMetrics = true;
     }
 
     // Called once per panel (graph)
@@ -38,12 +39,12 @@ function (angular, _, kbn) {
       });
 
       return this.performTimeSeriesQuery(queries, start, end)
-        .then(function(response) {
-          var result = _.map(response.data, function(metricData) {
-            return transformMetricData(metricData, groupByTags);
-          });
+        .then(_.bind(function(response) {
+          var result = _.map(response.data, _.bind(function(metricData, index) {
+            return transformMetricData(metricData, groupByTags, this.targets[index]);
+          }, this));
           return { data: result };
-        });
+        }, options));
     };
 
     OpenTSDBDatasource.prototype.performTimeSeriesQuery = function(queries, start, end) {
@@ -80,8 +81,20 @@ function (angular, _, kbn) {
       });
     };
 
-    function transformMetricData(md, groupByTags) {
-      var dps = [];
+    function transformMetricData(md, groupByTags, options) {
+      var dps = [],
+          tagData = [],
+          metricLabel = null;
+
+      if (!_.isEmpty(md.tags)) {
+        _.each(_.pairs(md.tags), function(tag) {
+          if (_.has(groupByTags, tag[0])) {
+            tagData.push(tag[0] + "=" + tag[1]);
+          }
+        });
+      }
+
+      metricLabel = createMetricLabel(md.metric, tagData, options);
 
       // TSDB returns datapoints has a hash of ts => value.
       // Can't use _.pairs(invert()) because it stringifies keys/values
@@ -89,22 +102,19 @@ function (angular, _, kbn) {
         dps.push([v, k]);
       });
 
-      var target = md.metric;
-      if (!_.isEmpty(md.tags)) {
-        var tagData = [];
+      return { target: metricLabel, datapoints: dps };
+    }
 
-        _.each(_.pairs(md.tags), function(tag) {
-          if (_.has(groupByTags, tag[0])) {
-            tagData.push(tag[0] + "=" + tag[1]);
+    function createMetricLabel(metric, tagData, options) {
+      if (options.alias) {
+        return options.alias;
       }
-        });
 
       if (!_.isEmpty(tagData)) {
-          target = target + "{" + tagData.join(", ") + "}";
-        }
+        metric += "{" + tagData.join(", ") + "}";
       }
 
-      return { target: target, datapoints: dps };
+      return metric;
     }
 
     function convertTargetToQuery(target) {