/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.client.coprocessor;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorRequest;
import org.apache.hadoop.hbase.regionserver.RowProcessor;
import com.google.protobuf.Message;
/**
* Convenience class that is used to make RowProcessorEndpoint invocations.
* For example usage, refer TestRowProcessorEndpoint
*
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class RowProcessorClient {
public static <S extends Message, T extends Message>
RowProcessorRequest getRowProcessorPB(RowProcessor<S,T> r)
throws IOException {
final RowProcessorRequest.Builder requestBuilder =
RowProcessorRequest.newBuilder();
requestBuilder.setRowProcessorClassName(r.getClass().getName());
S s = r.getRequestData();
if (s != null) {
requestBuilder.setRowProcessorInitializerMessageName(s.getClass().getName());
requestBuilder.setRowProcessorInitializerMessage(s.toByteString());
}
return requestBuilder.build();
}
}