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

      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 =

View Full Code Here

              .setUser(ByteString.copyFromUtf8(userName)).setPermission(ret));
          service.grant(controller, builder.build(), rpcCallback);
          return rpcCallback.get();
        }
      };
      Map<byte[], GrantResponse> result = ht.coprocessorService(AccessControlService.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.

View Full Code Here

                      .setUser(ByteString.copyFromUtf8(username)).setPermission(ret)).build();
          service.revoke(controller, builder, rpcCallback);
          return rpcCallback.get();
        }
      };
      Map<byte[], RevokeResponse> result = ht.coprocessorService(AccessControlService.class,
          HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY, callable);
      return result.values().iterator().next();


    } finally {
      if (ht != null) {

View Full Code Here

    try {
      TableName aclTableName =
          TableName.valueOf(NamespaceDescriptor.SYSTEM_NAMESPACE_NAME_STR, "acl");
      ha = new HBaseAdmin(conf);
      ht = new HTable(conf, aclTableName.getName());
      CoprocessorRpcChannel service = ht.coprocessorService(HConstants.EMPTY_START_ROW);
      BlockingInterface protocol =
          AccessControlProtos.AccessControlService.newBlockingStub(service);
      HTableDescriptor[] htds = null;
      
      if (tableRegex != null) {

View Full Code Here

        }
        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();

View Full Code Here

        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();
    }

View Full Code Here

  public static Token<AuthenticationTokenIdentifier> obtainToken(
      Configuration conf) throws IOException {
    Table meta = null;
    try {
      meta = new HTable(conf, TableName.META_TABLE_NAME);
      CoprocessorRpcChannel rpcChannel = meta.coprocessorService(HConstants.EMPTY_START_ROW);
      AuthenticationProtos.AuthenticationService.BlockingInterface service =
          AuthenticationProtos.AuthenticationService.newBlockingStub(rpcChannel);
      AuthenticationProtos.GetAuthenticationTokenResponse response = service.getAuthenticationToken(null,
          AuthenticationProtos.GetAuthenticationTokenRequest.getDefaultInstance());

View Full Code Here

          }
          service.addLabels(controller, builder.build(), rpcCallback);
          return rpcCallback.get();
        }
      };
      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 {

View Full Code Here

          getAuthReqBuilder.setUser(ByteStringer.wrap(Bytes.toBytes(user)));
          service.getAuths(controller, getAuthReqBuilder.build(), rpcCallback);
          return rpcCallback.get();
        }
      };
      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) {

View Full Code Here

            service.clearAuths(controller, setAuthReqBuilder.build(), rpcCallback);
          }
          return rpcCallback.get();
        }
      };
      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 {

View Full Code Here

0 1 2 3 4 5 6

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.