core/src/main/java/org/apache/accumulo/core/rpc/TraceProtocol.java

/*
 * 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.accumulo.core.rpc;

import org.apache.accumulo.core.trace.Span;
import org.apache.accumulo.core.trace.Trace;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TCompactProtocol;
import org.apache.thrift.protocol.TMessage;
import org.apache.thrift.transport.TTransport;

/**
 * TCompactProtocol implementation which automatically tracks tracing information
 */
public class TraceProtocol extends TCompactProtocol {
  private Span span = null;

  @Override
  public void writeMessageBegin(TMessage message) throws TException {
    span = Trace.start("client:" + message.name);
    super.writeMessageBegin(message);
  }

  @Override
  public void writeMessageEnd() throws TException {
    super.writeMessageEnd();
    span.stop();
  }

  public TraceProtocol(TTransport transport) {
    super(transport);
  }
}