| /* |
| * 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.cache.client.internal; |
| |
| import org.apache.geode.internal.cache.EventID; |
| import org.apache.geode.internal.cache.tier.MessageType; |
| import org.apache.geode.internal.cache.tier.sockets.Message; |
| |
| /** |
| * Does a region clear (or create) on a server |
| * |
| * @since GemFire 5.7 |
| */ |
| public class ClearOp { |
| /** |
| * Does a region clear on a server using connections from the given pool to communicate with the |
| * server. |
| * |
| * @param pool the pool to use to communicate with the server. |
| * @param region the name of the region to do the clear on |
| * @param eventId the event id for this clear |
| * @param callbackArg an optional callback arg to pass to any cache callbacks |
| */ |
| public static void execute(ExecutablePool pool, String region, EventID eventId, |
| Object callbackArg) { |
| AbstractOp op = new ClearOpImpl(region, eventId, callbackArg); |
| pool.execute(op); |
| } |
| |
| /** |
| * Does a region clear on a server using the given connection from the given pool to communicate |
| * with the server. |
| * |
| * @param con the connection to use to send to the server |
| * @param pool the pool to use to communicate with the server. |
| * @param region the name of the region to do the clear on |
| * @param eventId the event id for this clear |
| * @param callbackArg an optional callback arg to pass to any cache callbacks |
| */ |
| public static void execute(Connection con, ExecutablePool pool, String region, EventID eventId, |
| Object callbackArg) { |
| AbstractOp op = new ClearOpImpl(region, eventId, callbackArg); |
| pool.executeOn(con, op); |
| } |
| |
| private ClearOp() { |
| // no instances allowed |
| } |
| |
| private static class ClearOpImpl extends AbstractOp { |
| /** |
| * @throws org.apache.geode.SerializationException if serialization fails |
| */ |
| public ClearOpImpl(String region, EventID eventId, Object callbackArg) { |
| super(MessageType.CLEAR_REGION, callbackArg != null ? 3 : 2); |
| getMessage().addStringPart(region, true); |
| getMessage().addBytesPart(eventId.calcBytes()); |
| if (callbackArg != null) { |
| getMessage().addObjPart(callbackArg); |
| } |
| } |
| |
| @Override |
| protected Object processResponse(Message msg) throws Exception { |
| processAck(msg, "clear region"); |
| return null; |
| } |
| |
| @Override |
| protected boolean isErrorResponse(int msgType) { |
| return msgType == MessageType.CLEAR_REGION_DATA_ERROR; |
| } |
| |
| @Override |
| protected long startAttempt(ConnectionStats stats) { |
| return stats.startClear(); |
| } |
| |
| @Override |
| protected void endSendAttempt(ConnectionStats stats, long start) { |
| stats.endClearSend(start, hasFailed()); |
| } |
| |
| @Override |
| protected void endAttempt(ConnectionStats stats, long start) { |
| stats.endClear(start, hasTimedOut(), hasFailed()); |
| } |
| } |
| } |