Examples of org.apache.hadoop.hbase.client.Table.coprocessorService()

Class org.apache.hadoop.hbase.client.Table

Examples of org.apache.hadoop.hbase.client.Table.coprocessorService()

org.apache.hadoop.hbase.client.Table.coprocessorService()
Creates and returns a {@link com.google.protobuf.RpcChannel} instance connected to thetable region containing the specified row. The row given does not actually have to exist. Whichever region would contain the row based on start and end keys will be used. Note that the {@code row} parameter is also not passed to thecoprocessor handler registered for this protocol, unless the {@code row}is separately passed as an argument in the service request. The parameter here is only used to locate the region used to handle the call.
The obtained {@link com.google.protobuf.RpcChannel} instance can be used to access a publishedcoprocessor {@link com.google.protobuf.Service} using standard protobuf service invocations:
```
 CoprocessorRpcChannel channel = myTable.coprocessorService(rowkey); MyService.BlockingInterface service = MyService.newBlockingStub(channel); MyCallRequest request = MyCallRequest.newBuilder() ... .build(); MyCallResponse response = service.myCall(null, request); 
```
@param row The row key used to identify the remote region location @return A CoprocessorRpcChannel instance

    AccessTestAction execEndpointAction = new AccessTestAction() {
      @Override
      public Object run() throws Exception {
        Table t = new HTable(conf, TEST_TABLE.getTableName());
        try {
          BlockingRpcChannel service = t.coprocessorService(HConstants.EMPTY_BYTE_ARRAY);
          PingCoprocessor.newBlockingStub(service).noop(null, NoopRequest.newBuilder().build());
        } finally {
          t.close();
        }
        return null;

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      p.add(TEST_FAMILY, TEST_COLUMN, iBytes);
      table.put(p);
    }


    final ExampleProtos.CountRequest request = ExampleProtos.CountRequest.getDefaultInstance();
    Map<byte[],Long> results = table.coprocessorService(ExampleProtos.RowCountService.class,
        null, null,
        new Batch.Call<ExampleProtos.RowCountService,Long>() {
          public Long call(ExampleProtos.RowCountService counter) throws IOException {
            ServerRpcController controller = new ServerRpcController();
            BlockingRpcCallback<ExampleProtos.CountResponse> rpcCallback =

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        }
        service.delete(controller, builder.build(), rpcCallback);
        return rpcCallback.get();
      }
    };
    Map<byte[], BulkDeleteResponse> result = ht.coprocessorService(BulkDeleteService.class, scan
        .getStartRow(), scan.getStopRow(), callable);
    for (BulkDeleteResponse response : result.values()) {
      noOfDeletedRows += response.getRowsDeleted();
    }
    ht.close();

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        builder.setRowBatchSize(500);
        service.delete(controller, builder.build(), rpcCallback);
        return rpcCallback.get();
      }
    };
    Map<byte[], BulkDeleteResponse> result = ht.coprocessorService(BulkDeleteService.class, scan
        .getStartRow(), scan.getStopRow(), callable);
    for (BulkDeleteResponse response : result.values()) {
      noOfDeletedRows += response.getRowsDeleted();
      noOfVersionsDeleted += response.getVersionsDeleted();
    }

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            throw controller.getFailedOn();
          }
          return response;
        }
      };
      Map<byte[], VisibilityLabelsResponse> result = ht.coprocessorService(
          VisibilityLabelsService.class, HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY,
          callable);
      return result.values().iterator().next(); // There will be exactly one region for labels
                                                // table and so one entry in result Map.
    } finally {

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            throw controller.getFailedOn();
          }
          return response;
        }
      };
      Map<byte[], GetAuthsResponse> result = ht.coprocessorService(VisibilityLabelsService.class,
          HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY, callable);
      return result.values().iterator().next(); // There will be exactly one region for labels
                                                // table and so one entry in result Map.
    } finally {
      if (ht != null) {

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            throw controller.getFailedOn();
          }
          return response;
        }
      };
      Map<byte[], VisibilityLabelsResponse> result = ht.coprocessorService(
          VisibilityLabelsService.class, HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY,
          callable);
      return result.values().iterator().next(); // There will be exactly one region for labels
                                                // table and so one entry in result Map.
    } finally {

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    Table ht = null;
    Admin ha = null;
    try {
      ha = new HBaseAdmin(conf);
      ht = new HTable(conf, ACL_TABLE_NAME);
      CoprocessorRpcChannel service = ht.coprocessorService(HConstants.EMPTY_START_ROW);
      BlockingInterface protocol = AccessControlProtos.AccessControlService
          .newBlockingStub(service);
      HTableDescriptor[] htds = null;


      if (tableRegex == null || tableRegex.isEmpty()) {

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