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Getting Metrics from CloudWatch

Listing Metrics

To list CloudWatch metrics, create a ListMetricsRequest and call the AmazonCloudWatchClient’s listMetrics method. You can use the ListMetricsRequest to filter the returned metrics by namespace, metric name, or dimensions.

Imports

import com.amazonaws.services.cloudwatch.AmazonCloudWatch;
import com.amazonaws.services.cloudwatch.AmazonCloudWatchClientBuilder;
import com.amazonaws.services.cloudwatch.model.ListMetricsRequest;
import com.amazonaws.services.cloudwatch.model.ListMetricsResult;
import com.amazonaws.services.cloudwatch.model.Metric;

Code

final AmazonCloudWatch cw =
    AmazonCloudWatchClientBuilder.defaultClient();

ListMetricsRequest request = new ListMetricsRequest()
        .withMetricName(name)
        .withNamespace(namespace);

boolean done = false;

while(!done) {
    ListMetricsResult response = cw.listMetrics(request);

    for(Metric metric : response.getMetrics()) {
        System.out.printf(
            "Retrieved metric %s", metric.getMetricName());
    }

    request.setNextToken(response.getNextToken());

    if(response.getNextToken() == null) {
        done = true;
    }
}

The metrics are returned in a ListMetricsResult by calling its getMetrics method. The results may be paged. To retrieve the next batch of results, call setNextToken on the original request object with the return value of the ListMetricsResult object’s getNextToken method, and pass the modified request object back to another call to listMetrics.

More Information