Release 1.6.0

CMakeLists.txt

@@ -125,19 +125,15 @@ else()
    include(ExternalProject)
    set(OTEL_CPP_PROJECT_NAME opentelemetry-cpp)
    set(OTEL_CPP_GIT_REPOSITORY "https://github.com/open-telemetry/opentelemetry-cpp.git")
-   set(OTEL_CPP_GIT_TAG "11d5d9e")
+   set(OTEL_CPP_GIT_TAG "e1119ed")
 
    if(DEFINED OTEL_CPP_PREFIX)
        string(REPLACE "\\" "/" OTEL_CPP_PREFIX ${OTEL_CPP_PREFIX})
    else()
        set(OTEL_CPP_PREFIX ${CMAKE_BINARY_DIR}/otel-cpp)
    endif()
 
-   if(WITH_OTLP_GRPC)
-       set(OTEL_CPP_CXX_STANDARD 14)  # Abseil requires at least Cxx14
-   else()
-       set(OTEL_CPP_CXX_STANDARD 11)
-   endif()
+   set(OTEL_CPP_CXX_STANDARD 14)
 
    if(NOT APPLE OR SKIP_OTEL_CPP_PATCH)
        set(patch_command "")

README.md

@@ -4,9 +4,9 @@
 MATLAB® interface to [OpenTelemetry™](https://opentelemetry.io/), based on the [OpenTelemetry Specification](https://opentelemetry.io/docs/reference/specification/). OpenTelemetry is an observability framework for creating and managing telemetry data, such as traces, metrics, and logs. This data can then be sent to an observability back-end for monitoring, alerts, and analysis. 
 
 ### Status
-- Currently only tracing and metrics are supported. Logs will be in the future.
-- View class in metrics is only partially supported. The properties **Aggregation** and **AllowedAttributes** are not yet supported. 
-- This package is supported and has been tested on Windows®, Linux®, and macOS.
+- Tracing and metrics are fully supported. Logs will be in the future.
+- Supported and tested on Windows®, Linux®, and macOS.
+- Attributes in asynchronous metric instruments are currently ignored because of an issue in the opentelemetry-cpp layer.
 
 ### MathWorks Products (https://www.mathworks.com)
 
@@ -91,4 +91,4 @@ The license is available in the License file within this repository
 ## Community Support
 [MATLAB Central](https://www.mathworks.com/matlabcentral)
 
-Copyright 2023 The MathWorks, Inc.
+Copyright 2023-2024 The MathWorks, Inc.

sdk/metrics/+opentelemetry/+sdk/+metrics/View.m

@@ -7,7 +7,7 @@
     %   * Ignore unwanted instruments
     %   * Ignore unwanted attributes
 
-    % Copyright 2023 The MathWorks, Inc.
+    % Copyright 2023-2024 The MathWorks, Inc.
 
     properties (GetAccess={?opentelemetry.sdk.metrics.MeterProvider})
         Proxy  % Proxy object to interface C++ code
@@ -91,15 +91,13 @@
                 options.MeterName {mustBeTextScalar} = ""
                 options.MeterVersion {mustBeTextScalar} = ""
                 options.MeterSchema {mustBeTextScalar} = ""
-                %options.AllowedAttributes {mustBeText, mustBeVector}   % no default here
-                %options.Aggregation {mustBeTextScalar} = "default"
+                options.AllowedAttributes {mustBeText, mustBeVector}   % no default here
+                options.Aggregation {mustBeTextScalar} = "default"
                 options.HistogramBinEdges {mustBeNumeric, mustBeVector} = zeros(1,0)
             end
-
-            % Aggregation and AllowedAttributes are not yet supported
-            options.Aggregation = "default";
 
-            instrument_types = ["counter", "histogram", "updowncounter"];
+            instrument_types = ["counter", "histogram", "updowncounter", ...
+                "observablecounter", "observableupdowncounter", "observablegauge"];
             instrument_type = validatestring(options.InstrumentType, instrument_types);
 
             aggregation_types = ["drop", "histogram", "lastvalue", "sum", "default"];

test/tmetrics.m

@@ -197,11 +197,7 @@ function testCounterInvalidAdd(testCase)
             % fetch results
             clear p;
             results = readJsonResults(testCase);
-            results = results{end};
-
-            % verify that the counter value is still 0
-            verifyEqual(testCase, ...
-                results.resourceMetrics.scopeMetrics.metrics.sum.dataPoints.asDouble, 0);
+            verifyEmpty(testCase, results);    % results should be empty since all adds were invalid
         end
 
 
@@ -516,10 +512,6 @@ function testGetSetMeterProvider(testCase)
     methods (Test, ParameterCombination="sequential")
         function testAsynchronousInstrumentBasic(testCase, create_async, datapoint_name)
             % test basic functionalities of an observable counter
-
-            testCase.assumeTrue(isequal(create_async, @createObservableGauge), ...
-                "Sporadic failures for counters and updowncounters fixed in otel-cpp 1.14.0");
-
             countername = "bar";
             callback = @callbackNoAttributes;
 
@@ -549,10 +541,9 @@ function testAsynchronousInstrumentBasic(testCase, create_async, datapoint_name)
 
         function testAsynchronousInstrumentAttributes(testCase, create_async, datapoint_name)
             % test for attributes when observing metrics for an observable counter
-
-            testCase.assumeTrue(isequal(create_async, @createObservableGauge), ...
-                "Sporadic failures for counters and updowncounters fixed in otel-cpp 1.14.0");
-
+
+            testCase.assumeTrue(false, "Asynchronous metrics attributes incorrectly ignored due to issue in opentelemetry-cpp 1.14.0");
+
             countername = "bar";
             callback = @callbackWithAttributes;
 
@@ -586,10 +577,6 @@ function testAsynchronousInstrumentAttributes(testCase, create_async, datapoint_
 
         function testAsynchronousInstrumentAnonymousCallback(testCase, create_async, datapoint_name)
             % use an anonymous function as callback
-
-            testCase.assumeTrue(isequal(create_async, @createObservableGauge), ...
-                "Sporadic failures for counters and updowncounters fixed in otel-cpp 1.14.0");
-
             countername = "bar";
             addvalue = 20;
             callback = @(x)callbackOneInput(addvalue);
@@ -617,9 +604,8 @@ function testAsynchronousInstrumentAnonymousCallback(testCase, create_async, dat
         function testAsynchronousInstrumentMultipleCallbacks(testCase, create_async, datapoint_name)
             % Observable counter with more than one callbacks
 
-            testCase.assumeTrue(isequal(create_async, @createObservableGauge), ...
-                "Sporadic failures for counters and updowncounters fixed in otel-cpp 1.14.0");
-
+            testCase.assumeTrue(false, "Asynchronous metrics attributes incorrectly ignored due to issue in opentelemetry-cpp 1.14.0");
+
             countername = "bar";
 
             p = opentelemetry.sdk.metrics.MeterProvider(testCase.ShortIntervalReader);

test/tmetrics_sdk.m

@@ -186,7 +186,6 @@ function testViewBasic(testCase)
             % verify counter value
             verifyEqual(testCase, dp.asDouble, val);
         end
-
 
         function testViewHistogram(testCase)
             % testViewHistogram: Change histogram bins
@@ -240,6 +239,74 @@ function testViewHistogram(testCase)
             verifyEqual(testCase, dp.bucketCounts, expected_buckets);
         end
 
+        function testViewAggregation(testCase)
+            % testViewAggregation: change aggregation of metric instruments
+            metername = "foo";
+            countername = "bar";
+            view = opentelemetry.sdk.metrics.View(InstrumentType="Counter", ...
+                InstrumentName=countername, Aggregation="LastValue");
+            mp = opentelemetry.sdk.metrics.MeterProvider(...
+                testCase.ShortIntervalReader, View=view); 
+
+            m = getMeter(mp, metername);
+            c = createCounter(m, countername);
+
+            % add values
+            maxi = 5;
+            for i = 1:maxi
+                c.add(i);
+            end
+
+            pause(testCase.WaitTime);
+
+            clear mp;
+            results = readJsonResults(testCase);
+            results = results{end};
+
+            % verify counter name
+            verifyEqual(testCase, string(results.resourceMetrics.scopeMetrics.metrics.name), countername);
+
+            % verify counter value is the last value rather than the sum
+            dp = results.resourceMetrics.scopeMetrics.metrics.gauge.dataPoints;
+            verifyEqual(testCase, dp.asDouble, maxi);
+        end
+
+        function testViewAttributes(testCase)
+            % testViewAttributes: filter out attributes
+            metername = "foo";
+            countername = "bar";
+            view = opentelemetry.sdk.metrics.View(InstrumentType="Counter", ...
+                InstrumentName=countername, AllowedAttributes="Building");
+            mp = opentelemetry.sdk.metrics.MeterProvider(...
+                testCase.ShortIntervalReader, View=view); 
+
+            m = getMeter(mp, metername);
+            c = createCounter(m, countername);
+
+            % add values
+            values = 10:10:40;
+            add(c, values(1), "Building", 1, "Room", 1);
+            add(c, values(2), "Building", 1, "Room", 2);
+            add(c, values(3), "Building", 1, "Room", 1);
+            add(c, values(4), "Building", 1, "Room", 2);
+
+            pause(testCase.WaitTime);
+
+            clear mp;
+            results = readJsonResults(testCase);
+            results = results{end};
+
+            % verify counter name
+            verifyEqual(testCase, string(results.resourceMetrics.scopeMetrics.metrics.name), countername);
+
+            % verify "Room" attribute has been filtered out
+            dp = results.resourceMetrics.scopeMetrics.metrics.sum.dataPoints;
+            verifyEqual(testCase, dp.asDouble, sum(values));
+            verifyLength(testCase, dp.attributes, 1);
+            verifyEqual(testCase, string(dp.attributes(1).key), "Building");
+            verifyEqual(testCase, dp.attributes(1).value.doubleValue, 1);
+        end
+
         function testMultipleViews(testCase)
             % testMultipleView: Applying multiple views to a meter provider