Addition of Stats Exporter for Microsoft Azure (#795)

packages/opencensus-exporter-azure/.nycrc

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+{
+    "nyc": {
+        "all": true,
+        "include": [
+            "test/**/*.ts"
+        ]
+    }
+}

packages/opencensus-exporter-azure/bbtest/batch_blackbox.ts

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+/**
+ * Copyright 2020 OpenCensus Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const AS = require('../build/src/azure-stats');
+const OC = require('@opencensus/core');
+
+function exportSingleMetric() {
+    // Construct and register an AzureStatsExporter with the OpenCensus library.
+    const exporter = new AS.AzureStatsExporter({
+        instrumentationKey: 'xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
+        logger: new OC.logger.ConsoleLogger(process.argv[2] || 'info'),
+        periodInMillis: 15000,
+        exportMode: AS.ExportMode.BATCH,
+        aggregationMethod: AS.AggregationMethod.AVERAGE
+    });
+    OC.globalStats.registerExporter(exporter);
+
+    // Create a dummy metric.
+    const mDummy2 = OC.globalStats.createMeasureInt64('test/dummy2', OC.MeasureUnit.UNIT, 'This variable has absolutely no meaning.');
+    const dumbTagKey = { name: 'dumb' };
+
+    const view = OC.globalStats.createView(
+        'dummy/view2',
+        mDummy2,
+        OC.AggregationType.SUM,
+        [dumbTagKey],
+        'An average of the dummy measure.'
+    );
+    OC.globalStats.registerView(view);
+
+    // Create the tag map so we can set values for our dummy tags.
+    const tags = new OC.TagMap();
+
+    // Set a value for each.
+    tags.set(dumbTagKey, { value: 'dumb' });
+
+    // Loop through an arbitrary amount of numbers, and record them as 'metrics'.
+    setInterval(() => {
+        let randomCap = Math.floor(Math.random() * 901) + 100;
+        let randomFloor = Math.floor(Math.random() * randomCap);
+        for (let i = 0; i < 100; i++) {
+            let randomNum = Math.floor(Math.random() * (randomCap + 1)) + randomFloor;
+            OC.globalStats.record([{
+                measure: mDummy2,
+                value: randomNum
+            }], tags);    
+        }
+    }, 6000);
+
+}
+
+exportSingleMetric();

packages/opencensus-exporter-azure/bbtest/blackbox-trace.ts

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+/**
+ * Copyright 2020 OpenCensus Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Import Core OpenCensus and our Azure Exporter module.
+const OpenCensus = require('@opencensus/core');
+const tracing = require('@opencensus/nodejs');
+const AzureTrace = require('../build/src/azure-trace');
+const ApplicationInsights = require('applicationinsights');
+
+// Start the global tracing object
+const tracer = tracing.start({samplingRate: 1}).tracer;
+
+function doWork() {
+    for (let i = 0; i < 10; i++) {
+        const span = tracer.startChildSpan('doWork');
+        span.start();
+
+        for (let j = 0; j < 100000; j++);
+        span.addAnnotation('Invoking doWork');
+        for (let j = 0; j < 20000000; j++);
+        span.end();
+    }
+}
+
+function delay(ms) {
+    return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+async function exportSingleTrace() {
+    // Construct and register an AzureStatsExporter with the OpenCensus library.
+
+    const exporterOptions = {
+        instrumentationKey: 'xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
+        logger: new OpenCensus.logger.ConsoleLogger(process.argv[2] || 'info'),
+        maxBatchInterval: 1
+    };
+
+    const exporter = new AzureTrace.AzureTraceExporter(exporterOptions);
+    // OpenCensus.globalStats.registerExporter(exporter);
+
+    // Register the Azure trace exporter so that the global object will utilize
+    // the Azure exporter to push traces
+    tracer.registerSpanEventListener(exporter);
+
+    // Start an arbitrary root span
+    tracer.startRootSpan({ name: 'root-s01'}, rootSpan => {
+        // Do some arbitrary work, and create children spans while we are at it.
+        for(let i = 0; i < 10; i++) {
+            doWork();
+        }
+        // End the root span, triggering the publishing of it.
+        rootSpan.end();
+    });
+
+    // Pause execution of the script for 20 seconds, to allow the ExportBuffer that controls
+    // the publish() method within the Trace Exporter time to complete logging
+    await delay(20 * 1000);
+}
+
+exportSingleTrace();

packages/opencensus-exporter-azure/bbtest/blackbox.ts

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+/**
+ * Copyright 2020 OpenCensus Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Import Core OpenCensus and our Azure Exporter module.
+const OpenCensus = require('@opencensus/core');
+const AzureStats = require('../build/src/azure-stats');
+
+function exportSingleMetrics() {
+    // Construct and register an AzureStatsExporter with the OpenCensus library.
+    const exporter = new AzureStats.AzureStatsExporter({
+        instrumentationKey: 'xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
+        logger: new OpenCensus.logger.ConsoleLogger(process.argv[2] || 'info')
+    });
+    OpenCensus.globalStats.registerExporter(exporter);
+
+    // Create a dummy metric.
+    const mDummy = OpenCensus.globalStats.createMeasureInt64('test/dummy', OpenCensus.MeasureUnit.UNIT, 'This variable has absolutely no meaning.');
+
+    // Create some dummy tags.
+    const dumbTagKey = { name: 'dumb' };
+    const dumberTagKey = { name: 'dumber' };
+    const evenDumberTagKey = { name: 'evenDumber' };
+    const dumbestTagKey = { name: 'dumbest' };
+
+    // Create some dummy views.
+    const sumView = OpenCensus.globalStats.createView(
+        'dummy/sumView',
+        mDummy,
+        OpenCensus.AggregationType.SUM,
+        [dumbTagKey],
+        'A sum of the dummy measure.'
+    );
+    OpenCensus.globalStats.registerView(sumView);
+
+    const distributionView = OpenCensus.globalStats.createView(
+        'dummy/distView',
+        mDummy,
+        OpenCensus.AggregationType.DISTRIBUTION,
+        [dumbTagKey, dumberTagKey],
+        'A distribution of the dummy measure.',
+        [0, 5, 10, 15, 20, 25, 30, 35, 40, 45]
+    );
+    OpenCensus.globalStats.registerView(distributionView);
+
+    const countView = OpenCensus.globalStats.createView(
+        'dummy/countView',
+        mDummy,
+        OpenCensus.AggregationType.COUNT,
+        [dumbTagKey, dumberTagKey, evenDumberTagKey],
+        'A count of the dummy measure.'
+    );
+    OpenCensus.globalStats.registerView(countView);
+
+    const lastValueView = OpenCensus.globalStats.createView(
+        'dummy/lastValueView',
+        mDummy,
+        OpenCensus.AggregationType.LAST_VALUE,
+        [dumbTagKey, dumberTagKey, evenDumberTagKey, dumbestTagKey],
+        'The last value of the dummy measure.'
+    );
+    OpenCensus.globalStats.registerView(lastValueView);
+
+    // Loop through an arbitrary amount of numbers, and record them as 'metrics'.
+    for (let i = 0; i < 42; i++) {
+        // Create the tag map so we can set values for our dummy tags.
+        const tags = new OpenCensus.TagMap();
+
+        // Set a value for each.
+        tags.set(dumbTagKey, { value: 'dumb' });
+        tags.set(dumberTagKey, { value: 'dumber' });
+        tags.set(evenDumberTagKey, { value: 'evenDumber' });
+        tags.set(dumbestTagKey, { value: 'dumbest' });
+
+        OpenCensus.globalStats.record([{
+            measure: mDummy,
+            value: i
+        }], tags);
+
+        // Do something special if i is greater than 30 so we have extra things to look for in
+        // AppInsights.
+        if (i > 30) {
+            tags.set(dumbTagKey, { value: 'dumb but over 30' });
+            OpenCensus.globalStats.record([{
+                measure: mDummy,
+                value: i
+            }], tags);
+        }
+    }
+}
+
+exportSingleMetrics();