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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 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.avro.ipc;
A datagram-based server implementation. This uses a simple, non-standard wire protocol and is not intended for production services.
public class DatagramServer extends Thread implements Server {
  private static final Logger LOG =
  private final Responder responder;
  private final DatagramChannel channel;
  private final Transceiver transceiver;
  public DatagramServer(Responder responderSocketAddress addr)
    throws IOException {
    String name = "DatagramServer on "+addr;
    this. = responder;
    this. =;
    this. = new DatagramTransceiver();
  public int getPort() { return .socket().getLocalPort(); }
  public void run() {
    while (true) {
      try {
      } catch (ClosedChannelException e) {
      } catch (IOException e) {
        .warn("unexpected error"e);
        throw new RuntimeException(e);
  public void close() { this.interrupt(); }
  public static void main(String[] argthrows Exception {
    DatagramServer server = new DatagramServer(nullnew InetSocketAddress(0));
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