feat: Add test profile to push metrics to test environment (#1921)

feat:add test profile Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly: - [ ] Make sure to open an issue as a [bug/issue](https://togithub.com/googleapis/java-bigtable/issues/new/choose) before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea - [ ] Ensure the tests and linter pass - [ ] Code coverage does not decrease (if any source code was changed) - [ ] Appropriate docs were updated (if necessary) Fixes 299954521 ☕️ If you write sample code, please follow the [samples format]( https://togithub.com/GoogleCloudPlatform/java-docs-samples/blob/main/SAMPLE_FORMAT.md).

Author: meeral-k

google-cloud-bigtable-stats/pom.xml

@@ -254,4 +254,12 @@
  </plugin>
  </plugins>
  </build>
+ <profiles>
+ <profile>
+ <id>test</id>
+ <properties>
+ <bigtable.test-monitoring-endpoint/>
+ </properties>
+ </profile>
+ </profiles>
 </project>

google-cloud-bigtable-stats/src/main/java/com/google/cloud/bigtable/stats/BigtableStackdriverStatsExporter.java

@@ -23,6 +23,7 @@
 import com.google.cloud.monitoring.v3.MetricServiceClient;
 import com.google.cloud.monitoring.v3.MetricServiceSettings;
 import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.MoreObjects;
 import com.google.common.base.Preconditions;
 import io.opencensus.common.Duration;
 import io.opencensus.exporter.metrics.util.IntervalMetricReader;
@@ -44,6 +45,11 @@ public class BigtableStackdriverStatsExporter {
  private static final Duration EXPORT_INTERVAL = Duration.create(60, 0);
  private static final String RESOURCE_TYPE = "bigtable_client_raw";
 
+ private static final String MONITORING_ENDPOINT =
+ MoreObjects.firstNonNull(
+ System.getProperty("bigtable.test-monitoring-endpoint"),
+ MetricServiceSettings.getDefaultEndpoint());
+
  private final IntervalMetricReader intervalMetricReader;
 
  private BigtableStackdriverStatsExporter(
@@ -84,7 +90,7 @@ static MetricServiceClient createMetricServiceClient(Credentials credentials, Du
  MetricServiceSettings.newBuilder()
  .setTransportChannelProvider(InstantiatingGrpcChannelProvider.newBuilder().build());
  settingsBuilder.setCredentialsProvider(FixedCredentialsProvider.create(credentials));
-
+ settingsBuilder.setEndpoint(MONITORING_ENDPOINT);
  org.threeten.bp.Duration timeout = org.threeten.bp.Duration.ofMillis(deadline.toMillis());
  settingsBuilder.createServiceTimeSeriesSettings().setSimpleTimeoutNoRetries(timeout);
  return MetricServiceClient.create(settingsBuilder.build());