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feat: add gzip compression tracking to User-Agent metrics
- Add test to verify 'L' metric appears in User-Agent when gzip compression is used - Enable compression in test setup and mock client - Validate business metrics tracking for request compression feature update logic for compression unit test
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6 files changed

+146
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lines changed

‎cmake/sdksCommon.cmake‎

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@@ -101,7 +101,7 @@ list(APPEND SDK_TEST_PROJECT_LIST "kinesis:tests/aws-cpp-sdk-kinesis-integration
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list(APPEND SDK_TEST_PROJECT_LIST "lambda:tests/aws-cpp-sdk-lambda-integration-tests")
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list(APPEND SDK_TEST_PROJECT_LIST "logs:tests/aws-cpp-sdk-logs-integration-tests,tests/aws-cpp-sdk-logs-unit-tests")
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list(APPEND SDK_TEST_PROJECT_LIST "mediastore-data:tests/aws-cpp-sdk-mediastore-data-integration-tests")
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list(APPEND SDK_TEST_PROJECT_LIST "monitoring:tests/aws-cpp-sdk-monitoring-integration-tests")
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list(APPEND SDK_TEST_PROJECT_LIST "monitoring:tests/aws-cpp-sdk-monitoring-integration-tests,tests/aws-cpp-sdk-monitoring-unit-tests")
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list(APPEND SDK_TEST_PROJECT_LIST "rds:tests/aws-cpp-sdk-rds-integration-tests")
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list(APPEND SDK_TEST_PROJECT_LIST "redshift:tests/aws-cpp-sdk-redshift-integration-tests")
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list(APPEND SDK_TEST_PROJECT_LIST "s3:tests/aws-cpp-sdk-s3-integration-tests")

‎src/aws-cpp-sdk-core/include/aws/core/client/UserAgent.h‎

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@@ -31,6 +31,7 @@ enum class UserAgentFeature {
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ACCOUNT_ID_MODE_DISABLED,
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ACCOUNT_ID_MODE_REQUIRED,
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RESOLVED_ACCOUNT_ID,
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GZIP_REQUEST_COMPRESSION,
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};
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class AWS_CORE_API UserAgent {

‎src/aws-cpp-sdk-core/source/client/AWSClient.cpp‎

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@@ -910,6 +910,9 @@ void AWSClient::BuildHttpRequest(const Aws::AmazonWebServiceRequest& request, co
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if (compressOutcome.IsSuccess()) {
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Aws::String compressionAlgorithmId = Aws::Client::GetCompressionAlgorithmId(selectedCompressionAlgorithm);
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AppendHeaderValueToRequest(httpRequest, CONTENT_ENCODING_HEADER, compressionAlgorithmId);
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if (selectedCompressionAlgorithm == Aws::Client::CompressionAlgorithm::GZIP) {
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request.AddUserAgentFeature(Aws::Client::UserAgentFeature::GZIP_REQUEST_COMPRESSION);
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}
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AddContentBodyToRequest(
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httpRequest, compressOutcome.GetResult(),
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request.ShouldComputeContentMd5(),

‎src/aws-cpp-sdk-core/source/client/UserAgent.cpp‎

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@@ -41,6 +41,7 @@ const std::pair<UserAgentFeature, const char*> BUSINESS_METRIC_MAPPING[] = {
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{UserAgentFeature::ACCOUNT_ID_MODE_DISABLED , "Q"},
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{UserAgentFeature::ACCOUNT_ID_MODE_REQUIRED, "R"},
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{UserAgentFeature::RESOLVED_ACCOUNT_ID, "T"},
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{UserAgentFeature::GZIP_REQUEST_COMPRESSION, "L"},
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};
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Aws::String BusinessMetricForFeature(UserAgentFeature feature) {

‎tests/aws-cpp-sdk-monitoring-unit-tests/CMakeLists.txt‎

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@@ -0,0 +1,33 @@
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add_project(aws-cpp-sdk-monitoring-unit-tests
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"Unit Tests for the CloudWatch Monitoring Client"
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aws-cpp-sdk-monitoring
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testing-resources
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aws_test_main
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aws-cpp-sdk-core)
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add_definitions(-DRESOURCES_DIR="${CMAKE_CURRENT_SOURCE_DIR}/resources")
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if(MSVC AND BUILD_SHARED_LIBS)
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add_definitions(-DGTEST_LINKED_AS_SHARED_LIBRARY=1)
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endif()
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enable_testing()
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if(PLATFORM_ANDROID AND BUILD_SHARED_LIBS)
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add_library(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/CloudWatchUnitTest.cpp)
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else()
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add_executable(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/CloudWatchUnitTest.cpp)
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endif()
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set_compiler_flags(${PROJECT_NAME})
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set_compiler_warnings(${PROJECT_NAME})
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target_link_libraries(${PROJECT_NAME} ${PROJECT_LIBS})
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if(MSVC AND BUILD_SHARED_LIBS)
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set_target_properties(${PROJECT_NAME} PROPERTIES LINK_FLAGS "/DELAYLOAD:aws-cpp-sdk-monitoring.dll /DELAYLOAD:aws-cpp-sdk-core.dll")
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target_link_libraries(${PROJECT_NAME} delayimp.lib)
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endif()
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include(GoogleTest)
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gtest_add_tests(TARGET ${PROJECT_NAME})

‎tests/aws-cpp-sdk-monitoring-unit-tests/CloudWatchUnitTest.cpp‎

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/**
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* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0.
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*/
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#include <aws/core/auth/AWSCredentials.h>
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#include <aws/core/http/standard/StandardHttpRequest.h>
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#include <aws/core/http/standard/StandardHttpResponse.h>
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#include <aws/core/utils/Outcome.h>
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#include <aws/monitoring/CloudWatchClient.h>
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#include <aws/monitoring/model/PutMetricDataRequest.h>
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#include <aws/testing/AwsCppSdkGTestSuite.h>
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#include <aws/testing/AwsTestHelpers.h>
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#include <aws/testing/mocks/http/MockHttpClient.h>
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#include <aws/core/utils/StringUtils.h>
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#include <gtest/gtest.h>
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#include <algorithm>
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#include <iostream>
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using namespace Aws::Auth;
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using namespace Aws::Http;
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using namespace Aws::Client;
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using namespace Aws::CloudWatch;
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using namespace Aws::CloudWatch::Model;
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const char* LOG_TAG = "CloudWatchTest";
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class CloudWatchTest : public Aws::Testing::AwsCppSdkGTestSuite {
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protected:
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std::shared_ptr<MockHttpClient> m_mockHttpClient;
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std::shared_ptr<MockHttpClientFactory> m_mockHttpClientFactory;
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void SetUp() {
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m_mockHttpClient = Aws::MakeShared<MockHttpClient>(LOG_TAG);
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m_mockHttpClientFactory = Aws::MakeShared<MockHttpClientFactory>(LOG_TAG);
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m_mockHttpClientFactory->SetClient(m_mockHttpClient);
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SetHttpClientFactory(m_mockHttpClientFactory);
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}
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void TearDown() {
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m_mockHttpClient->Reset();
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m_mockHttpClient = nullptr;
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m_mockHttpClientFactory = nullptr;
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Aws::Http::CleanupHttp();
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Aws::Http::InitHttp();
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}
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};
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TEST_F(CloudWatchTest, TestUserAgentCompressionTracking) {
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#ifndef ENABLED_ZLIB_REQUEST_COMPRESSION
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GTEST_SKIP() << "ZLIB compression not available in this build";
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#endif
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// Setup mock response with proper CloudWatch XML
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std::shared_ptr<HttpRequest> requestTmp =
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CreateHttpRequest(Aws::Http::URI("dummy"), Aws::Http::HttpMethod::HTTP_POST, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
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auto successResponse = Aws::MakeShared<Standard::StandardHttpResponse>(LOG_TAG, requestTmp);
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successResponse->SetResponseCode(HttpResponseCode::OK);
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successResponse->GetResponseBody() << "<PutMetricDataResponse><ResponseMetadata><RequestId>test-request-id</RequestId></ResponseMetadata></PutMetricDataResponse>";
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m_mockHttpClient->AddResponseToReturn(successResponse);
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// Create client with compression enabled
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Aws::Client::ClientConfigurationInitValues cfgInit;
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cfgInit.shouldDisableIMDS = true;
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Aws::Client::ClientConfiguration clientConfig(cfgInit);
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clientConfig.region = Aws::Region::US_EAST_1;
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clientConfig.requestCompressionConfig.useRequestCompression = UseRequestCompression::ENABLE;
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clientConfig.requestCompressionConfig.requestMinCompressionSizeBytes = 10240;
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AWSCredentials credentials{"mock", "credentials"};
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CloudWatchClient client(credentials, clientConfig);
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// Create request with large payload to trigger compression
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PutMetricDataRequest request;
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request.SetNamespace("TestNamespace");
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// Add large metric data to trigger compression
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MetricDatum metricDatum;
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metricDatum.SetMetricName("TestMetric");
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metricDatum.SetValue(123.45);
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metricDatum.SetTimestamp(Aws::Utils::DateTime::Now());
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// Create large metadata to exceed compression threshold
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Aws::String largeValue(20000, 'A'); // 20KB value to exceed compression threshold
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Dimension dimension;
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dimension.SetName("LargeDimension");
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dimension.SetValue(largeValue);
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metricDatum.AddDimensions(dimension);
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request.AddMetricData(metricDatum);
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auto outcome = client.PutMetricData(request);
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AWS_ASSERT_SUCCESS(outcome);
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// Verify User-Agent contains compression metric
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auto lastRequest = m_mockHttpClient->GetMostRecentHttpRequest();
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EXPECT_TRUE(lastRequest.HasUserAgent());
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const auto& userAgent = lastRequest.GetUserAgent();
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EXPECT_TRUE(!userAgent.empty());
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const auto userAgentParsed = Aws::Utils::StringUtils::Split(userAgent, ' ');
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// Check for gzip compression business metric (L) in user agent
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auto businessMetrics = std::find_if(userAgentParsed.begin(), userAgentParsed.end(),
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[](const Aws::String& value) { return value.find("m/") != Aws::String::npos && value.find("L") != Aws::String::npos; });
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EXPECT_TRUE(businessMetrics != userAgentParsed.end());
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}

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