Package org.apache.accumulo.trace.instrument.receivers

Source Code of org.apache.accumulo.trace.instrument.receivers.SendSpansViaThrift

/*
* 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.trace.instrument.receivers;

import java.net.InetSocketAddress;
import java.net.Socket;
import java.util.Map;

import org.apache.accumulo.trace.thrift.RemoteSpan;
import org.apache.accumulo.trace.thrift.SpanReceiver.Client;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;


/**
* Send Span data to a destination using thrift.
*/
public class SendSpansViaThrift extends AsyncSpanReceiver<String,Client> {
 
  private static final org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(SendSpansViaThrift.class);
 
  private static final String THRIFT = "thrift://";
 
  public SendSpansViaThrift(String host, String service, long millis) {
    super(host, service, millis);
  }
 
  @Override
  protected Client createDestination(String destination) throws Exception {
    if (destination == null)
      return null;
    try {
      int portSeparatorIndex = destination.lastIndexOf(':');
      String host = destination.substring(0, portSeparatorIndex);
      int port = Integer.parseInt(destination.substring(portSeparatorIndex+1));
      log.debug("Connecting to " + host + ":" + port);
      InetSocketAddress addr = new InetSocketAddress(host, port);
      Socket sock = new Socket();
      sock.connect(addr);
      TTransport transport = new TSocket(sock);
      TProtocol prot = new TBinaryProtocol(transport);
      return new Client(prot);
    } catch (Exception ex) {
      log.error(ex, ex);
      return null;
    }
  }
 
  @Override
  protected void send(Client client, RemoteSpan s) throws Exception {
    if (client != null) {
      try {
        client.span(s);
      } catch (Exception ex) {
        client.getInputProtocol().getTransport().close();
        client = null;
      }
    }
  }
 
  protected String getSpanKey(Map<String,String> data) {
    String dest = data.get("dest");
    if (dest != null && dest.startsWith(THRIFT)) {
      String hostAddress = dest.substring(THRIFT.length());
      String[] hostAddr = hostAddress.split(":", 2);
      if (hostAddr.length == 2) {
        return hostAddress;
      }
    }
    return null;
  }
 
}
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