com.google.api.MonitoredResource Java Examples

private static void createInternal(
    @Nullable Credentials credentials,
    String projectId,
    Duration exportInterval,
    MonitoredResource monitoredResource,
    @Nullable String metricNamePrefix,
    Map<LabelKey, LabelValue> constantLabels,
    Duration deadline,
    @Nullable MetricServiceStub stub)
    throws IOException {
  synchronized (monitor) {
    checkState(instance == null, "Stackdriver stats exporter is already created.");
    MetricServiceClient client =
        stub == null
            ? createMetricServiceClient(credentials, deadline)
            : MetricServiceClient.create(stub);
    instance =
        new StackdriverStatsExporter(
            projectId,
            client,
            exportInterval,
            monitoredResource,
            metricNamePrefix,
            constantLabels);
  }
}
 

private static void updateUptimeCheck(
    String projectId, String displayName, String hostName, String pathName) throws IOException {
  String fullCheckName = UptimeCheckConfigName.format(projectId, displayName);

  UpdateUptimeCheckConfigRequest request =
      UpdateUptimeCheckConfigRequest.newBuilder()
          .setUpdateMask(FieldMask.newBuilder().addPaths("http_check.path"))
          .setUptimeCheckConfig(
              UptimeCheckConfig.newBuilder()
                  .setName(fullCheckName)
                  .setMonitoredResource(
                      MonitoredResource.newBuilder()
                          .setType("uptime_url")
                          .putLabels("host", hostName))
                  .setHttpCheck(HttpCheck.newBuilder().setPath(pathName).setPort(80))
                  .setTimeout(Duration.newBuilder().setSeconds(10))
                  .setPeriod(Duration.newBuilder().setSeconds(300)))
          .build();
  try (UptimeCheckServiceClient client = UptimeCheckServiceClient.create()) {
    UptimeCheckConfig config = client.updateUptimeCheckConfig(request);
    System.out.println("Uptime check updated: \n" + config.toString());
  } catch (Exception e) {
    usage("Exception updating uptime check: " + e.toString());
    throw e;
  }
}
 

private static void createUptimeCheck(
    String projectId, String displayName, String hostName, String pathName) throws IOException {
  CreateUptimeCheckConfigRequest request =
      CreateUptimeCheckConfigRequest.newBuilder()
          .setParent(ProjectName.format(projectId))
          .setUptimeCheckConfig(
              UptimeCheckConfig.newBuilder()
                  .setDisplayName(displayName)
                  .setMonitoredResource(
                      MonitoredResource.newBuilder()
                          .setType("uptime_url")
                          .putLabels("host", hostName))
                  .setHttpCheck(HttpCheck.newBuilder().setPath(pathName).setPort(80))
                  .setTimeout(Duration.newBuilder().setSeconds(10))
                  .setPeriod(Duration.newBuilder().setSeconds(300)))
          .build();
  try (UptimeCheckServiceClient client = UptimeCheckServiceClient.create()) {
    UptimeCheckConfig config = client.createUptimeCheckConfig(request);
    System.out.println("Uptime check created: " + config.getDisplayName());
  } catch (Exception e) {
    usage("Exception creating uptime check: " + e.toString());
    throw e;
  }
}
 

@Test
public void setResourceForBuilder_GcpInstanceType() {
  MonitoredResource.Builder monitoredResourceBuilder = DEFAULT_RESOURCE_WITH_PROJECT_ID.clone();
  Map<String, String> resourceLabels = new HashMap<String, String>();
  resourceLabels.put(CloudResource.ACCOUNT_ID_KEY, "proj1");
  resourceLabels.put(CloudResource.PROVIDER_KEY, CloudResource.PROVIDER_GCP);
  resourceLabels.put(HostResource.ID_KEY, "inst1");
  resourceLabels.put(CloudResource.ZONE_KEY, "zone1");
  resourceLabels.put("extra_key", "must be ignored");
  Map<String, String> expectedResourceLabels = new HashMap<String, String>();
  expectedResourceLabels.put("project_id", "proj1");
  expectedResourceLabels.put("instance_id", "inst1");
  expectedResourceLabels.put("zone", "zone1");
  Resource resource = Resource.create(HostResource.TYPE, resourceLabels);

  StackdriverExportUtils.setResourceForBuilder(monitoredResourceBuilder, resource);

  assertThat(monitoredResourceBuilder.getType()).isNotNull();
  assertThat(monitoredResourceBuilder.getLabelsMap()).isNotEmpty();
  assertThat(monitoredResourceBuilder.getType()).isEqualTo("gce_instance");
  assertThat(monitoredResourceBuilder.getLabelsMap().size()).isEqualTo(3);
  assertThat(monitoredResourceBuilder.getLabelsMap())
      .containsExactlyEntriesIn(expectedResourceLabels);
}
 

@Test
public void createTimeSeriesList_withCustomMonitoredResource() {
  MonitoredResource resource =
      MonitoredResource.newBuilder().setType("global").putLabels("key", "value").build();
  List<TimeSeries> timeSeriesList =
      StackdriverExportUtils.createTimeSeriesList(
          METRIC, resource, CUSTOM_OPENCENSUS_DOMAIN, PROJECT_ID, DEFAULT_CONSTANT_LABELS);
  assertThat(timeSeriesList)
      .containsExactly(
          TimeSeries.newBuilder()
              .setMetricKind(MetricKind.CUMULATIVE)
              .setValueType(MetricDescriptor.ValueType.DOUBLE)
              .setMetric(
                  StackdriverExportUtils.createMetric(
                      METRIC_DESCRIPTOR,
                      LABEL_VALUE,
                      CUSTOM_OPENCENSUS_DOMAIN,
                      DEFAULT_CONSTANT_LABELS))
              .setResource(resource)
              .addPoints(StackdriverExportUtils.createPoint(POINT, TIMESTAMP_2))
              .build());
}
 

@Test
public void createTimeSeriesList_Cumulative() {
  List<TimeSeries> timeSeriesList =
      StackdriverExportUtils.createTimeSeriesList(
          METRIC,
          DEFAULT_RESOURCE,
          CUSTOM_OPENCENSUS_DOMAIN,
          PROJECT_ID,
          DEFAULT_CONSTANT_LABELS);
  assertThat(timeSeriesList).hasSize(1);
  TimeSeries expectedTimeSeries =
      TimeSeries.newBuilder()
          .setMetricKind(MetricKind.CUMULATIVE)
          .setValueType(MetricDescriptor.ValueType.DOUBLE)
          .setMetric(
              StackdriverExportUtils.createMetric(
                  METRIC_DESCRIPTOR,
                  LABEL_VALUE,
                  CUSTOM_OPENCENSUS_DOMAIN,
                  DEFAULT_CONSTANT_LABELS))
          .setResource(MonitoredResource.newBuilder().setType("global"))
          .addPoints(StackdriverExportUtils.createPoint(POINT, TIMESTAMP_2))
          .build();
  assertThat(timeSeriesList).containsExactly(expectedTimeSeries);
}
 

static MonitoredResource getDefaultResource() {
  MonitoredResource.Builder builder = MonitoredResource.newBuilder();
  // Populate internal resource label for defaulting project_id label.
  // This allows stats from other projects (e.g from GAE running in another project) to be
  // collected.
  if (MetadataConfig.getProjectId() != null) {
    builder.putLabels(STACKDRIVER_PROJECT_ID_KEY, MetadataConfig.getProjectId());
  }

  Resource autoDetectedResource = ResourceUtils.detectResource();
  if (autoDetectedResource == null || autoDetectedResource.getType() == null) {
    builder.setType(GLOBAL);
    return builder.build();
  }

  setResourceForBuilder(builder, autoDetectedResource);
  return builder.build();
}
 

private StackdriverStatsExporter(
    String projectId,
    MetricServiceClient metricServiceClient,
    Duration exportInterval,
    MonitoredResource monitoredResource,
    @Nullable String metricNamePrefix,
    Map<LabelKey, LabelValue> constantLabels) {
  IntervalMetricReader.Options.Builder intervalMetricReaderOptionsBuilder =
      IntervalMetricReader.Options.builder();
  intervalMetricReaderOptionsBuilder.setExportInterval(exportInterval);
  intervalMetricReader =
      IntervalMetricReader.create(
          new CreateMetricDescriptorExporter(
              projectId,
              metricServiceClient,
              metricNamePrefix,
              constantLabels,
              new CreateTimeSeriesExporter(
                  projectId,
                  metricServiceClient,
                  monitoredResource,
                  metricNamePrefix,
                  constantLabels)),
          MetricReader.create(
              MetricReader.Options.builder()
                  .setMetricProducerManager(
                      Metrics.getExportComponent().getMetricProducerManager())
                  .setSpanName(EXPORTER_SPAN_NAME)
                  .build()),
          intervalMetricReaderOptionsBuilder.build());
}
 

static List<TimeSeries> createTimeSeriesList(
    io.opencensus.metrics.export.Metric metric,
    MonitoredResource monitoredResource,
    String domain,
    String projectId,
    Map<LabelKey, LabelValue> constantLabels) {
  List<TimeSeries> timeSeriesList = Lists.newArrayList();
  io.opencensus.metrics.export.MetricDescriptor metricDescriptor = metric.getMetricDescriptor();

  if (!projectId.equals(cachedProjectIdForExemplar)) {
    cachedProjectIdForExemplar = projectId;
  }

  // Shared fields for all TimeSeries generated from the same Metric
  TimeSeries.Builder shared = TimeSeries.newBuilder();
  shared.setMetricKind(createMetricKind(metricDescriptor.getType()));
  shared.setResource(monitoredResource);
  shared.setValueType(createValueType(metricDescriptor.getType()));

  // Each entry in timeSeriesList will be converted into an independent TimeSeries object
  for (io.opencensus.metrics.export.TimeSeries timeSeries : metric.getTimeSeriesList()) {
    // TODO(mayurkale): Consider using setPoints instead of builder clone and addPoints.
    TimeSeries.Builder builder = shared.clone();
    builder.setMetric(
        createMetric(metricDescriptor, timeSeries.getLabelValues(), domain, constantLabels));

    io.opencensus.common.Timestamp startTimeStamp = timeSeries.getStartTimestamp();
    for (io.opencensus.metrics.export.Point point : timeSeries.getPoints()) {
      builder.addPoints(createPoint(point, startTimeStamp));
    }
    timeSeriesList.add(builder.build());
  }
  return timeSeriesList;
}
 

CreateTimeSeriesExporter(
    String projectId,
    MetricServiceClient metricServiceClient,
    MonitoredResource monitoredResource,
    @javax.annotation.Nullable String metricNamePrefix,
    Map<LabelKey, LabelValue> constantLabels) {
  projectName = ProjectName.newBuilder().setProject(projectId).build();
  this.metricServiceClient = metricServiceClient;
  this.monitoredResource = monitoredResource;
  this.domain = StackdriverExportUtils.getDomain(metricNamePrefix);
  this.constantLabels = constantLabels;
}
 

@Test
public void setResourceForBuilder_K8sInstanceType() {
  MonitoredResource.Builder monitoredResourceBuilder = DEFAULT_RESOURCE_WITH_PROJECT_ID.clone();
  Map<String, String> resourceLabels = new HashMap<String, String>();
  resourceLabels.put(CloudResource.ZONE_KEY, "zone1");
  resourceLabels.put(HostResource.ID_KEY, "instance1");
  resourceLabels.put(K8sResource.CLUSTER_NAME_KEY, "cluster1");
  resourceLabels.put(ContainerResource.NAME_KEY, "container1");
  resourceLabels.put(K8sResource.NAMESPACE_NAME_KEY, "namespace1");
  resourceLabels.put(K8sResource.POD_NAME_KEY, "pod1");
  resourceLabels.put("extra_key", "must be ignored");
  Map<String, String> expectedResourceLabels = new HashMap<String, String>();
  expectedResourceLabels.put("project_id", "proj1");
  expectedResourceLabels.put("location", "zone1");
  expectedResourceLabels.put("cluster_name", "cluster1");
  expectedResourceLabels.put("namespace_name", "namespace1");
  expectedResourceLabels.put("pod_name", "pod1");
  expectedResourceLabels.put("container_name", "container1");
  Resource resource = Resource.create(ContainerResource.TYPE, resourceLabels);

  StackdriverExportUtils.setResourceForBuilder(monitoredResourceBuilder, resource);

  assertThat(monitoredResourceBuilder.getType()).isNotNull();
  assertThat(monitoredResourceBuilder.getLabelsMap()).isNotEmpty();
  assertThat(monitoredResourceBuilder.getType()).isEqualTo("k8s_container");
  assertThat(monitoredResourceBuilder.getLabelsMap().size()).isEqualTo(6);
  assertThat(monitoredResourceBuilder.getLabelsMap())
      .containsExactlyEntriesIn(expectedResourceLabels);
}
 

@Test
public void setResourceForBuilder_AwsInstanceType() {
  MonitoredResource.Builder monitoredResourceBuilder = DEFAULT_RESOURCE_WITH_PROJECT_ID.clone();
  Map<String, String> resourceLabels = new HashMap<String, String>();
  resourceLabels.put(CloudResource.REGION_KEY, "region1");
  resourceLabels.put(CloudResource.PROVIDER_KEY, CloudResource.PROVIDER_AWS);
  resourceLabels.put(CloudResource.ACCOUNT_ID_KEY, "account1");
  resourceLabels.put(HostResource.ID_KEY, "instance1");
  resourceLabels.put("extra_key", "must be ignored");
  Map<String, String> expectedResourceLabels = new HashMap<String, String>();
  expectedResourceLabels.put("project_id", "proj1");
  expectedResourceLabels.put("instance_id", "instance1");
  expectedResourceLabels.put(
      "region", StackdriverExportUtils.AWS_REGION_VALUE_PREFIX + "region1");
  expectedResourceLabels.put("aws_account", "account1");

  Resource resource = Resource.create(HostResource.TYPE, resourceLabels);

  StackdriverExportUtils.setResourceForBuilder(monitoredResourceBuilder, resource);

  assertThat(monitoredResourceBuilder.getType()).isNotNull();
  assertThat(monitoredResourceBuilder.getLabelsMap()).isNotEmpty();
  assertThat(monitoredResourceBuilder.getType()).isEqualTo("aws_ec2_instance");
  assertThat(monitoredResourceBuilder.getLabelsMap().size()).isEqualTo(4);
  assertThat(monitoredResourceBuilder.getLabelsMap())
      .containsExactlyEntriesIn(expectedResourceLabels);
}
 

private TimeSeries createTimeSeries(Meter.Id id, TypedValue typedValue, MetricDescriptor.ValueType valueType,
                                    @Nullable String statistic) {
    if (client != null)
        createMetricDescriptorIfNecessary(client, id, valueType, statistic);

    String metricType = metricType(id, statistic);

    Map<String, String> metricLabels = getConventionTags(id).stream()
            .collect(Collectors.toMap(Tag::getKey, Tag::getValue));

    return TimeSeries.newBuilder()
            .setMetric(Metric.newBuilder()
                    .setType(metricType)
                    .putAllLabels(metricLabels)
                    .build())
            .setResource(MonitoredResource.newBuilder()
                    .setType(config.resourceType())
                    .putLabels("project_id", config.projectId())
                    .putAllLabels(config.resourceLabels())
                    .build())
            .setMetricKind(MetricDescriptor.MetricKind.GAUGE) // https://cloud.google.com/monitoring/api/v3/metrics-details#metric-kinds
            .setValueType(valueType)
            .addPoints(Point.newBuilder()
                    .setInterval(interval)
                    .setValue(typedValue)
                    .build())
            .build();
}
 

@VisibleForTesting
static void setResourceForBuilder(
    MonitoredResource.Builder builder, Resource autoDetectedResource) {
  String type = autoDetectedResource.getType();
  if (type == null) {
    return;
  }
  String sdType = GLOBAL;

  Map<String, String> mappings = null;
  if (HostResource.TYPE.equals(type)) {
    String provider = autoDetectedResource.getLabels().get(CloudResource.PROVIDER_KEY);
    if (CloudResource.PROVIDER_GCP.equals(provider)) {
      sdType = GCP_GCE_INSTANCE;
      mappings = GCP_RESOURCE_MAPPING;
    } else if (CloudResource.PROVIDER_AWS.equals(provider)) {
      sdType = AWS_EC2_INSTANCE;
      mappings = AWS_RESOURCE_MAPPING;
    }
  } else if (ContainerResource.TYPE.equals(type)) {
    sdType = K8S_CONTAINER;
    mappings = K8S_RESOURCE_MAPPING;
  }

  builder.setType(sdType);

  if (GLOBAL.equals(sdType) || mappings == null) {
    return;
  }

  Map<String, String> resLabels = autoDetectedResource.getLabels();
  for (Map.Entry<String, String> entry : mappings.entrySet()) {
    if (entry.getValue() != null && resLabels.containsKey(entry.getValue())) {
      String resourceLabelKey = entry.getKey();
      String resourceLabelValue = resLabels.get(entry.getValue());
      if (AWS_EC2_INSTANCE.equals(sdType) && "region".equals(resourceLabelKey)) {
        // Add "aws:" prefix to AWS EC2 region label. This is Stackdriver specific requirement.
        resourceLabelValue = AWS_REGION_VALUE_PREFIX + resourceLabelValue;
      }
      builder.putLabels(resourceLabelKey, resourceLabelValue);
    }
  }
}
 

/**
 * Creates a Stackdriver Stats exporter with an explicit project ID and a custom Monitored
 * Resource.
 *
 * <p>Only one Stackdriver exporter can be created.
 *
 * <p>Please refer to cloud.google.com/monitoring/custom-metrics/creating-metrics#which-resource
 * for a list of valid {@code MonitoredResource}s.
 *
 * <p>This uses the default application credentials. See {@link
 * GoogleCredentials#getApplicationDefault}.
 *
 * @param projectId the cloud project id.
 * @param exportInterval the interval between pushing stats to StackDriver.
 * @param monitoredResource the Monitored Resource used by exporter.
 * @throws IllegalStateException if a Stackdriver exporter is already created.
 * @deprecated in favor of {@link #createAndRegister(StackdriverStatsConfiguration)}.
 * @since 0.10
 */
@Deprecated
public static void createAndRegisterWithProjectIdAndMonitoredResource(
    String projectId, Duration exportInterval, MonitoredResource monitoredResource)
    throws IOException {
  checkNotNull(projectId, "projectId");
  checkNotNull(exportInterval, "exportInterval");
  checkNotNull(monitoredResource, "monitoredResource");
  createInternal(
      null,
      projectId,
      exportInterval,
      monitoredResource,
      null,
      DEFAULT_CONSTANT_LABELS,
      DEFAULT_DEADLINE,
      null);
}
 

/**
 * Creates a Stackdriver Stats exporter with a custom Monitored Resource.
 *
 * <p>Only one Stackdriver exporter can be created.
 *
 * <p>Please refer to cloud.google.com/monitoring/custom-metrics/creating-metrics#which-resource
 * for a list of valid {@code MonitoredResource}s.
 *
 * <p>This uses the default application credentials. See {@link
 * GoogleCredentials#getApplicationDefault}.
 *
 * <p>This uses the default project ID configured see {@link ServiceOptions#getDefaultProjectId}.
 *
 * @param exportInterval the interval between pushing stats to StackDriver.
 * @param monitoredResource the Monitored Resource used by exporter.
 * @throws IllegalStateException if a Stackdriver exporter is already created.
 * @deprecated in favor of {@link #createAndRegister(StackdriverStatsConfiguration)}.
 * @since 0.10
 */
@Deprecated
public static void createAndRegisterWithMonitoredResource(
    Duration exportInterval, MonitoredResource monitoredResource) throws IOException {
  checkNotNull(exportInterval, "exportInterval");
  checkNotNull(monitoredResource, "monitoredResource");
  checkArgument(
      !DEFAULT_PROJECT_ID.isEmpty(), "Cannot find a project ID from application default.");
  createInternal(
      null,
      DEFAULT_PROJECT_ID,
      exportInterval,
      monitoredResource,
      null,
      DEFAULT_CONSTANT_LABELS,
      DEFAULT_DEADLINE,
      null);
}
 

private MonitoringService(String projectId, IMonitoringEvent[] monitoredEvents,
    HttpRequestFactory requestFactory) throws IOException {
  client = MetricServiceClient.create();

  aggregateEvents = new HashMap<>();

  this.projectId = projectId;
  this.monitoredEvents = monitoredEvents;

  // configure Resource
  MonitoredResource.Builder resourceBuilder = MonitoredResource.newBuilder();
  Map<String, String> resourceLabels = new HashMap<>();
  resourceLabels.put("project_id", this.projectId);

  Map<String, String> env = System.getenv();
  String podName = env.get("ENV_POD_NAME");
  String namespaceName = env.get("ENV_POD_NAMESPACE");
  String containerName = env.get("ENV_CONTAINER_NAME");
  String clusterName = GcpMetadataUtil.get(requestFactory, META_CLUSTER_NAME);
  String location = GcpMetadataUtil.get(requestFactory, META_LOCATION);
  if (location != null) {
    // GCPMetadata returns locations as "projects/[NUMERIC_PROJECT_ID]/zones/[ZONE]"
    // Only last part is necessary here.
    location = location.substring(location.lastIndexOf('/') + 1);
  }

  if (podName != null && namespaceName != null && containerName != null &&
      clusterName != null && location != null) {
    resourceLabels.put("pod_name", podName);
    resourceLabels.put("namespace_name", namespaceName);
    resourceLabels.put("container_name", containerName);
    resourceLabels.put("cluster_name", clusterName);
    resourceLabels.put("location", location);
    resourceBuilder.setType("k8s_container");
  } else {
    resourceBuilder.setType("global");
  }

  this.monitoredResource = resourceBuilder.putAllLabels(resourceLabels).build();
  log.info("monitoredResource = {}", monitoredResource);

  service = Executors.newSingleThreadScheduledExecutor();
  service.scheduleWithFixedDelay(MonitoringService.this::flush,
      DELAY, DELAY, TimeUnit.SECONDS);
}
 

@Test
public void createTimeSeriesList_Gauge() {
  io.opencensus.metrics.export.Metric metric =
      io.opencensus.metrics.export.Metric.create(
          GAUGE_METRIC_DESCRIPTOR, Arrays.asList(GAUGE_TIME_SERIES, GAUGE_TIME_SERIES_2));

  List<TimeSeries> timeSeriesList =
      StackdriverExportUtils.createTimeSeriesList(
          metric,
          DEFAULT_RESOURCE,
          CUSTOM_OPENCENSUS_DOMAIN,
          PROJECT_ID,
          DEFAULT_CONSTANT_LABELS);
  assertThat(timeSeriesList).hasSize(2);
  TimeSeries expected1 =
      TimeSeries.newBuilder()
          .setMetricKind(MetricKind.GAUGE)
          .setValueType(MetricDescriptor.ValueType.DOUBLE)
          .setMetric(
              StackdriverExportUtils.createMetric(
                  GAUGE_METRIC_DESCRIPTOR,
                  LABEL_VALUE,
                  CUSTOM_OPENCENSUS_DOMAIN,
                  DEFAULT_CONSTANT_LABELS))
          .setResource(MonitoredResource.newBuilder().setType("global"))
          .addPoints(StackdriverExportUtils.createPoint(POINT, null))
          .build();
  TimeSeries expected2 =
      TimeSeries.newBuilder()
          .setMetricKind(MetricKind.GAUGE)
          .setValueType(MetricDescriptor.ValueType.DOUBLE)
          .setMetric(
              StackdriverExportUtils.createMetric(
                  GAUGE_METRIC_DESCRIPTOR,
                  LABEL_VALUE_2,
                  CUSTOM_OPENCENSUS_DOMAIN,
                  DEFAULT_CONSTANT_LABELS))
          .setResource(MonitoredResource.newBuilder().setType("global"))
          .addPoints(StackdriverExportUtils.createPoint(POINT_2, null))
          .build();
  assertThat(timeSeriesList).containsExactly(expected1, expected2);
}
 

/**
 * Demonstrates writing a time series value for the metric type
 * 'custom.google.apis.com/my_metric'.
 *
 * <p>This method assumes `my_metric` descriptor has already been created as a DOUBLE value_type
 * and GAUGE metric kind. If the metric descriptor doesn't exist, it will be auto-created.
 */
// CHECKSTYLE OFF: VariableDeclarationUsageDistance
void writeTimeSeries() throws IOException {
  // [START monitoring_write_timeseries]
  String projectId = System.getProperty("projectId");
  // Instantiates a client
  MetricServiceClient metricServiceClient = MetricServiceClient.create();

  // Prepares an individual data point
  TimeInterval interval =
      TimeInterval.newBuilder()
          .setEndTime(Timestamps.fromMillis(System.currentTimeMillis()))
          .build();
  TypedValue value = TypedValue.newBuilder().setDoubleValue(123.45).build();
  Point point = Point.newBuilder().setInterval(interval).setValue(value).build();

  List<Point> pointList = new ArrayList<>();
  pointList.add(point);

  ProjectName name = ProjectName.of(projectId);

  // Prepares the metric descriptor
  Map<String, String> metricLabels = new HashMap<>();
  Metric metric =
      Metric.newBuilder()
          .setType("custom.googleapis.com/my_metric")
          .putAllLabels(metricLabels)
          .build();

  // Prepares the monitored resource descriptor
  Map<String, String> resourceLabels = new HashMap<>();
  resourceLabels.put("instance_id", "1234567890123456789");
  resourceLabels.put("zone", "us-central1-f");

  MonitoredResource resource =
      MonitoredResource.newBuilder().setType("gce_instance").putAllLabels(resourceLabels).build();

  // Prepares the time series request
  TimeSeries timeSeries =
      TimeSeries.newBuilder()
          .setMetric(metric)
          .setResource(resource)
          .addAllPoints(pointList)
          .build();

  List<TimeSeries> timeSeriesList = new ArrayList<>();
  timeSeriesList.add(timeSeries);

  CreateTimeSeriesRequest request =
      CreateTimeSeriesRequest.newBuilder()
          .setName(name.toString())
          .addAllTimeSeries(timeSeriesList)
          .build();

  // Writes time series data
  metricServiceClient.createTimeSeries(request);
  System.out.println("Done writing time series value.");
  // [END monitoring_write_timeseries]
}
 

public static void main(String... args) throws Exception {
  // Your Google Cloud Platform project ID
  String projectId = System.getProperty("projectId");

  if (projectId == null) {
    System.err.println("Usage: QuickstartSample -DprojectId=YOUR_PROJECT_ID");
    return;
  }

  // Instantiates a client
  MetricServiceClient metricServiceClient = MetricServiceClient.create();

  // Prepares an individual data point
  TimeInterval interval =
      TimeInterval.newBuilder()
          .setEndTime(Timestamps.fromMillis(System.currentTimeMillis()))
          .build();
  TypedValue value = TypedValue.newBuilder().setDoubleValue(3.14).build();
  Point point = Point.newBuilder().setInterval(interval).setValue(value).build();

  List<Point> pointList = new ArrayList<>();
  pointList.add(point);

  ProjectName name = ProjectName.of(projectId);

  // Prepares the metric descriptor
  Map<String, String> metricLabels = new HashMap<String, String>();
  metricLabels.put("store_id", "Pittsburg");
  Metric metric =
      Metric.newBuilder()
          .setType("custom.googleapis.com/my_metric")
          .putAllLabels(metricLabels)
          .build();

  // Prepares the monitored resource descriptor
  Map<String, String> resourceLabels = new HashMap<String, String>();
  resourceLabels.put("instance_id", "1234567890123456789");
  resourceLabels.put("zone", "us-central1-f");
  MonitoredResource resource =
      MonitoredResource.newBuilder().setType("gce_instance").putAllLabels(resourceLabels).build();

  // Prepares the time series request
  TimeSeries timeSeries =
      TimeSeries.newBuilder()
          .setMetric(metric)
          .setResource(resource)
          .addAllPoints(pointList)
          .build();
  List<TimeSeries> timeSeriesList = new ArrayList<>();
  timeSeriesList.add(timeSeries);

  CreateTimeSeriesRequest request =
      CreateTimeSeriesRequest.newBuilder()
          .setName(name.toString())
          .addAllTimeSeries(timeSeriesList)
          .build();

  // Writes time series data
  metricServiceClient.createTimeSeries(request);

  System.out.printf("Done writing time series data.%n");

  metricServiceClient.close();
}
 

/**
 * Sets the {@link MonitoredResource}.
 *
 * @param monitoredResource the Stackdriver {@code MonitoredResource}.
 * @return this.
 * @since 0.11
 */
public abstract Builder setMonitoredResource(MonitoredResource monitoredResource);
 

/**
 * Returns the Stackdriver {@link MonitoredResource}.
 *
 * @return the {@code MonitoredResource}.
 * @since 0.11
 */
public abstract MonitoredResource getMonitoredResource();