HBASE-22744 Removed deprecated status and load classes in client module

hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java

@@ -131,7 +131,6 @@
 import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetOnlineRegionResponse;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoRequest;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionLoadResponse;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoRequest;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoResponse;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetStoreFileRequest;
@@ -1734,16 +1733,6 @@ public static org.apache.hadoop.hbase.client.RegionInfo getRegionInfo(final RpcC
     }
   }
 
-  public static List<org.apache.hadoop.hbase.RegionLoad> getRegionLoadInfo(
-      GetRegionLoadResponse regionLoadResponse) {
-    List<org.apache.hadoop.hbase.RegionLoad> regionLoadList =
-        new ArrayList<>(regionLoadResponse.getRegionLoadsCount());
-    for (RegionLoad regionLoad : regionLoadResponse.getRegionLoadsList()) {
-      regionLoadList.add(new org.apache.hadoop.hbase.RegionLoad(regionLoad));
-    }
-    return regionLoadList;
-  }
-
   /**
    * A helper to close a region given a region name
    * using admin protocol.

hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/TestStatusResource.java

@@ -100,7 +100,7 @@ public static void setUpBeforeClass() throws Exception {
     TEST_UTIL.waitFor(6000, new Waiter.Predicate<IOException>() {
       @Override
       public boolean evaluate() throws IOException {
-        return TEST_UTIL.getMiniHBaseCluster().getClusterStatus().getAverageLoad() > 0;
+        return TEST_UTIL.getMiniHBaseCluster().getClusterMetrics().getAverageLoad() > 0;
       }
     });
   }

hbase-server/src/test/java/org/apache/hadoop/hbase/MiniHBaseCluster.java

@@ -110,7 +110,7 @@ public MiniHBaseCluster(Configuration conf, int numMasters, int numRegionServers
     CompatibilityFactory.getInstance(MetricsAssertHelper.class).init();
 
     init(numMasters, numRegionServers, rsPorts, masterClass, regionserverClass);
-    this.initialClusterStatus = getClusterStatus();
+    this.initialClusterStatus = getClusterMetrics();
   }
 
   public Configuration getConfiguration() {
@@ -435,9 +435,9 @@ public JVMClusterUtil.RegionServerThread startRegionServerAndWait(long timeout)
     ServerName rsServerName = t.getRegionServer().getServerName();
 
     long start = System.currentTimeMillis();
-    ClusterStatus clusterStatus = getClusterStatus();
+    ClusterMetrics clusterStatus = getClusterMetrics();
     while ((System.currentTimeMillis() - start) < timeout) {
-      if (clusterStatus != null && clusterStatus.getServers().contains(rsServerName)) {
+      if (clusterStatus != null && clusterStatus.getLiveServerMetrics().containsKey(rsServerName)) {
         return t;
       }
       Threads.sleep(100);
@@ -659,16 +659,6 @@ public void shutdown() throws IOException {
   public void close() throws IOException {
   }
 
-  /**
-   * @deprecated As of release 2.0.0, this will be removed in HBase 3.0.0
-   *             Use {@link #getClusterMetrics()} instead.
-   */
-  @Deprecated
-  public ClusterStatus getClusterStatus() throws IOException {
-    HMaster master = getMaster();
-    return master == null ? null : new ClusterStatus(master.getClusterMetrics());
-  }
-
   @Override
   public ClusterMetrics getClusterMetrics() throws IOException {
     HMaster master = getMaster();

hbase-server/src/test/java/org/apache/hadoop/hbase/TestClientClusterStatus.java

@@ -89,8 +89,6 @@ public void testNone() throws Exception {
     // or more requests than expected.
     Assert.assertEquals(status0.getLiveServerMetrics().size(),
         status1.getLiveServerMetrics().size());
-    checkPbObjectNotNull(new ClusterStatus(status0));
-    checkPbObjectNotNull(new ClusterStatus(status1));
   }
 
   @Test
@@ -109,28 +107,26 @@ public void testLiveAndDeadServersStatus() throws Exception {
     Waiter.waitFor(CLUSTER.getConfiguration(), 10 * 1000, 100, new Predicate<Exception>() {
       @Override
       public boolean evaluate() throws Exception {
-        ClusterStatus status
-          = new ClusterStatus(ADMIN.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS)));
+        ClusterMetrics status = ADMIN.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS));
         Assert.assertNotNull(status);
-        return status.getRegionsCount() > 0;
+        return status.getRegionCount() > 0;
       }
     });
     // Retrieve live servers and dead servers info.
     EnumSet<Option> options =
         EnumSet.of(Option.LIVE_SERVERS, Option.DEAD_SERVERS, Option.SERVERS_NAME);
-    ClusterStatus status = new ClusterStatus(ADMIN.getClusterMetrics(options));
-    checkPbObjectNotNull(status);
+    ClusterMetrics status = ADMIN.getClusterMetrics(options);
     Assert.assertNotNull(status);
-    Assert.assertNotNull(status.getServers());
+    Assert.assertNotNull(status.getLiveServerMetrics().keySet());
     // exclude a dead region server
     Assert.assertEquals(SLAVES -1, numRs);
     // live servers = nums of regionservers
     // By default, HMaster don't carry any regions so it won't report its load.
     // Hence, it won't be in the server list.
-    Assert.assertEquals(status.getServers().size(), numRs);
-    Assert.assertTrue(status.getRegionsCount() > 0);
+    Assert.assertEquals(status.getLiveServerMetrics().keySet().size(), numRs);
+    Assert.assertTrue(status.getRegionCount() > 0);
     Assert.assertNotNull(status.getDeadServerNames());
-    Assert.assertEquals(1, status.getDeadServersSize());
+    Assert.assertEquals(1, status.getDeadServerNames().size());
     ServerName deadServerName = status.getDeadServerNames().iterator().next();
     Assert.assertEquals(DEAD.getServerName(), deadServerName);
     Assert.assertNotNull(status.getServersName());
@@ -158,18 +154,18 @@ public void testMasterAndBackupMastersStatus() throws Exception {
     Assert.assertEquals(MASTERS, masterThreads.size());
     // Retrieve master and backup masters infos only.
     EnumSet<Option> options = EnumSet.of(Option.MASTER, Option.BACKUP_MASTERS);
-    ClusterStatus status = new ClusterStatus(ADMIN.getClusterMetrics(options));
-    Assert.assertTrue(status.getMaster().equals(activeName));
-    Assert.assertEquals(MASTERS - 1, status.getBackupMastersSize());
+    ClusterMetrics status = ADMIN.getClusterMetrics(options);
+    Assert.assertTrue(status.getMasterName().equals(activeName));
+    Assert.assertEquals(MASTERS - 1, status.getBackupMasterNames().size());
   }
 
   @Test
   public void testOtherStatusInfos() throws Exception {
     EnumSet<Option> options =
         EnumSet.of(Option.MASTER_COPROCESSORS, Option.HBASE_VERSION,
                    Option.CLUSTER_ID, Option.BALANCER_ON);
-    ClusterStatus status = new ClusterStatus(ADMIN.getClusterMetrics(options));
-    Assert.assertTrue(status.getMasterCoprocessors().length == 1);
+    ClusterMetrics status = ADMIN.getClusterMetrics(options);
+    Assert.assertTrue(status.getMasterCoprocessorNames().size() == 1);
     Assert.assertNotNull(status.getHBaseVersion());
     Assert.assertNotNull(status.getClusterId());
     Assert.assertTrue(status.getAverageLoad() == 0.0);
@@ -192,21 +188,6 @@ public void testObserver() throws IOException {
     Assert.assertEquals(postCount + 1, MyObserver.POST_COUNT.get());
   }
 
-  /**
-   * HBASE-19496 do the refactor for ServerLoad and RegionLoad so the inner pb object is useless
-   * now. However, they are Public classes, and consequently we must make sure the all pb objects
-   * have initialized.
-   */
-  private static void checkPbObjectNotNull(ClusterStatus status) {
-    for (ServerName name : status.getLiveServerMetrics().keySet()) {
-      ServerLoad load = status.getLoad(name);
-      Assert.assertNotNull(load.obtainServerLoadPB());
-      for (RegionLoad rl : load.getRegionsLoad().values()) {
-        Assert.assertNotNull(rl.regionLoadPB);
-      }
-    }
-  }
-
   public static class MyObserver implements MasterCoprocessor, MasterObserver {
     private static final AtomicInteger PRE_COUNT = new AtomicInteger(0);
     private static final AtomicInteger POST_COUNT = new AtomicInteger(0);