import org.apache.hadoop.hbase.rest.metrics.RESTMetrics; //导入依赖的package包/类
@Test
public void testRESTMetrics() throws InterruptedException {
  long timeout = 2000;
  RESTMetrics test = new RESTMetrics();
  int incrementSucessfulGet = 20000;
  int incrementSucessfulDelete = 3000000;
  int incrementSucessfulPut = 3000000;
  int incrementRequest = incrementSucessfulGet + incrementSucessfulDelete + incrementSucessfulPut;

  int incrementFailedGetRequests = 100;
  int incrementFailedDeleteRequests = 30;
  int incrementFailedPutRequests = 2;

  long start1 = System.currentTimeMillis();
  test.doUpdates(null);

  // started value
  assertEquals(0, test.getRequests(), 0.01);
  assertEquals(0, test.getSucessfulDeleteCount(), 0.01);
  assertEquals(0, test.getSucessfulPutCount(), 0.01);
  assertEquals(0, test.getSucessfulGetCount(), 0.01);
  assertEquals(0, test.getFailedDeleteCount(), 0.01);
  assertEquals(0, test.getFailedGetCount(), 0.01);
  assertEquals(0, test.getFailedPutCount(), 0.01);

  // sleep some seconds
  Thread.sleep(timeout);
  test.incrementRequests(incrementRequest);
  test.incrementSucessfulGetRequests(incrementSucessfulGet);
  test.incrementSucessfulDeleteRequests(incrementSucessfulDelete);
  test.incrementSucessfulPutRequests(incrementSucessfulPut);
  test.incrementFailedGetRequests(incrementFailedGetRequests);
  test.incrementFailedDeleteRequests(incrementFailedDeleteRequests);
  test.incrementFailedPutRequests(incrementFailedPutRequests);

  test.doUpdates(null);

  // The maximum time for stability test
  long tmax = System.currentTimeMillis() - start1;

  testData(tmax, timeout, test.getRequests(), incrementRequest);
  testData(tmax, timeout, test.getSucessfulGetCount(), incrementSucessfulGet);
  testData(tmax, timeout, test.getSucessfulDeleteCount(), incrementSucessfulDelete);
  testData(tmax, timeout, test.getSucessfulPutCount(), incrementSucessfulPut);
  testData(tmax, timeout, test.getFailedGetCount(), incrementFailedGetRequests);
  testData(tmax, timeout, test.getFailedDeleteCount(), incrementFailedDeleteRequests);
  testData(tmax, timeout, test.getFailedPutCount(), incrementFailedPutRequests);

  test.shutdown();
}
 

import org.apache.hadoop.hbase.rest.metrics.RESTMetrics; //导入依赖的package包/类
RESTMetrics getMetrics() {
  return metrics;
}