GetPdxTypes70.java example

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geode-master
/*
 * 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.geode.internal.cache.tier.sockets.command;

import java.io.IOException;
import java.util.Map;

import org.apache.geode.internal.cache.GemFireCacheImpl;
import org.apache.geode.internal.cache.tier.Command;
import org.apache.geode.internal.cache.tier.MessageType;
import org.apache.geode.internal.cache.tier.sockets.BaseCommand;
import org.apache.geode.internal.cache.tier.sockets.Message;
import org.apache.geode.internal.cache.tier.sockets.ServerConnection;
import org.apache.geode.pdx.internal.PdxType;

public class GetPdxTypes70 extends BaseCommand {

  private final static GetPdxTypes70 singleton = new GetPdxTypes70();

  public static Command getCommand() {
    return singleton;
  }

  private GetPdxTypes70() {}

  @Override
  public void cmdExecute(Message msg, ServerConnection servConn, long start)
      throws IOException, ClassNotFoundException {
    servConn.setAsTrue(REQUIRES_RESPONSE);
    if (logger.isDebugEnabled()) {
      logger.debug("{}: Received get pdx types from {}", servConn.getName(),
          servConn.getSocketString());
    }

    Map<Integer, PdxType> types;
    try {
      GemFireCacheImpl cache = (GemFireCacheImpl) servConn.getCache();
      types = cache.getPdxRegistry().typeMap();
    } catch (Exception e) {
      writeException(msg, e, false, servConn);
      servConn.setAsTrue(RESPONDED);
      return;
    }

    Message responseMsg = servConn.getResponseMessage();
    responseMsg.setMessageType(MessageType.RESPONSE);
    responseMsg.setNumberOfParts(1);
    responseMsg.setTransactionId(msg.getTransactionId());
    responseMsg.addObjPart(types);
    responseMsg.send(servConn);
    servConn.setAsTrue(RESPONDED);
  }
}