import org.apache.hadoop.hbase.coprocessor.protobuf.generated.PingProtos.PingRequest; //导入依赖的package包/类
@Test
public void testSingleMethod() throws Throwable {
  try (HTable table = new HTable(util.getConfiguration(), TEST_TABLE)) {
    RegionLocator locator = table.getRegionLocator();
    Map<byte [], String> results = table.coprocessorService(PingProtos.PingService.class,
      null, ROW_A,
      new Batch.Call<PingProtos.PingService, String>() {
        @Override
        public String call(PingProtos.PingService instance) throws IOException {
          BlockingRpcCallback<PingProtos.PingResponse> rpcCallback =
            new BlockingRpcCallback<PingProtos.PingResponse>();
          instance.ping(null, PingProtos.PingRequest.newBuilder().build(), rpcCallback);
          return rpcCallback.get().getPong();
        }
      });
    // Should have gotten results for 1 of the three regions only since we specified
    // rows from 1 region
    assertEquals(1, results.size());
    verifyRegionResults(locator, results, ROW_A);

    final String name = "NAME";
    results = hello(table, name, null, ROW_A);
    // Should have gotten results for 1 of the three regions only since we specified
    // rows from 1 region
    assertEquals(1, results.size());
    verifyRegionResults(locator, results, "Hello, NAME", ROW_A);
  }
}
 

import org.apache.hadoop.hbase.coprocessor.protobuf.generated.PingProtos.PingRequest; //导入依赖的package包/类
@Test
public void testSingleMethod() throws Throwable {
  HTable table = new HTable(util.getConfiguration(), TEST_TABLE);
  Map<byte [], String> results = table.coprocessorService(PingProtos.PingService.class,
    null, ROW_A,
    new Batch.Call<PingProtos.PingService, String>() {
      @Override
      public String call(PingProtos.PingService instance) throws IOException {
        BlockingRpcCallback<PingProtos.PingResponse> rpcCallback =
          new BlockingRpcCallback<PingProtos.PingResponse>();
        instance.ping(null, PingProtos.PingRequest.newBuilder().build(), rpcCallback);
        return rpcCallback.get().getPong();
      }
    });
  // Should have gotten results for 1 of the three regions only since we specified
  // rows from 1 region
  assertEquals(1, results.size());
  verifyRegionResults(table, results, ROW_A);

  final String name = "NAME";
  results = hello(table, name, null, ROW_A);
  // Should have gotten results for 1 of the three regions only since we specified
  // rows from 1 region
  assertEquals(1, results.size());
  verifyRegionResults(table, results, "Hello, NAME", ROW_A);
  table.close();
}
 

import org.apache.hadoop.hbase.coprocessor.protobuf.generated.PingProtos.PingRequest; //导入依赖的package包/类
@Test
public void testSingleMethod() throws Throwable {
  try (Table table = util.getConnection().getTable(TEST_TABLE);
      RegionLocator locator = util.getConnection().getRegionLocator(TEST_TABLE)) {
    Map<byte [], String> results = table.coprocessorService(PingProtos.PingService.class,
      null, ROW_A,
      new Batch.Call<PingProtos.PingService, String>() {
        @Override
        public String call(PingProtos.PingService instance) throws IOException {
          CoprocessorRpcUtils.BlockingRpcCallback<PingProtos.PingResponse> rpcCallback =
            new CoprocessorRpcUtils.BlockingRpcCallback<>();
          instance.ping(null, PingProtos.PingRequest.newBuilder().build(), rpcCallback);
          return rpcCallback.get().getPong();
        }
      });
    // Should have gotten results for 1 of the three regions only since we specified
    // rows from 1 region
    assertEquals(1, results.size());
    verifyRegionResults(locator, results, ROW_A);

    final String name = "NAME";
    results = hello(table, name, null, ROW_A);
    // Should have gotten results for 1 of the three regions only since we specified
    // rows from 1 region
    assertEquals(1, results.size());
    verifyRegionResults(locator, results, "Hello, NAME", ROW_A);
  }
}
 

import org.apache.hadoop.hbase.coprocessor.protobuf.generated.PingProtos.PingRequest; //导入依赖的package包/类
@Override
public void ping(RpcController controller, PingRequest request,
    RpcCallback<PingResponse> callback) {
  callback.run(PingResponse.newBuilder().setPong("Pong!").build());
}
 

import org.apache.hadoop.hbase.coprocessor.protobuf.generated.PingProtos.PingRequest; //导入依赖的package包/类
@Override
public void ping(RpcController controller, PingRequest request,
    RpcCallback<PingResponse> done) {
  this.counter++;
  done.run(PingResponse.newBuilder().setPong("pong").build());
}
 

import org.apache.hadoop.hbase.coprocessor.protobuf.generated.PingProtos.PingRequest; //导入依赖的package包/类
private static String doPing(PingProtos.PingService instance) throws IOException {
  BlockingRpcCallback<PingProtos.PingResponse> rpcCallback =
      new BlockingRpcCallback<PingProtos.PingResponse>();
    instance.ping(null, PingProtos.PingRequest.newBuilder().build(), rpcCallback);
    return rpcCallback.get().getPong();
}
 

import org.apache.hadoop.hbase.coprocessor.protobuf.generated.PingProtos.PingRequest; //导入依赖的package包/类
private static String doPing(PingProtos.PingService instance) throws IOException {
  CoprocessorRpcUtils.BlockingRpcCallback<PingProtos.PingResponse> rpcCallback =
      new CoprocessorRpcUtils.BlockingRpcCallback<>();
    instance.ping(null, PingProtos.PingRequest.newBuilder().build(), rpcCallback);
    return rpcCallback.get().getPong();
}