| /* |
| * 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 org.apache.geode.annotations.Immutable; |
| import org.apache.geode.cache.client.internal.TXSynchronizationOp.CompletionType; |
| import org.apache.geode.distributed.internal.ReplyException; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.cache.TXCommitMessage; |
| import org.apache.geode.internal.cache.TXId; |
| import org.apache.geode.internal.cache.TXManagerImpl; |
| import org.apache.geode.internal.cache.TXStateProxy; |
| 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.MessageTooLargeException; |
| import org.apache.geode.internal.cache.tier.sockets.Part; |
| import org.apache.geode.internal.cache.tier.sockets.ServerConnection; |
| import org.apache.geode.internal.security.SecurityService; |
| |
| public class TXSynchronizationCommand extends BaseCommand { |
| |
| @Immutable |
| private static final TXSynchronizationCommand singleton = new TXSynchronizationCommand(); |
| |
| public static Command getCommand() { |
| return singleton; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.apache.geode.internal.cache.tier.sockets.BaseCommand#cmdExecute(org.apache.geode.internal. |
| * cache.tier.sockets.Message, org.apache.geode.internal.cache.tier.sockets.ServerConnection, |
| * long) |
| */ |
| @Override |
| public void cmdExecute(final Message clientMessage, final ServerConnection serverConnection, |
| final SecurityService securityService, long start) |
| throws IOException, ClassNotFoundException, InterruptedException { |
| final boolean isDebugEnabled = logger.isDebugEnabled(); |
| serverConnection.setAsTrue(REQUIRES_RESPONSE); |
| |
| CompletionType type = CompletionType.values()[clientMessage.getPart(0).getInt()]; |
| /* int txIdInt = */ clientMessage.getPart(1).getInt(); // [bruce] not sure if we need to |
| // transmit this |
| final Part statusPart; |
| if (type == CompletionType.AFTER_COMPLETION) { |
| statusPart = clientMessage.getPart(2); |
| } else { |
| statusPart = null; |
| } |
| |
| final TXManagerImpl txMgr = getTXManager(serverConnection); |
| final InternalDistributedMember member = getDistributedMember(serverConnection); |
| |
| final TXStateProxy txProxy = txMgr.getTXState(); |
| assert txProxy != null; |
| |
| final TXId txId = txProxy.getTxId(); |
| TXCommitMessage commitMessage = txMgr.getRecentlyCompletedMessage(txId); |
| if (commitMessage != null && commitMessage != TXCommitMessage.ROLLBACK_MSG) { |
| assert type == CompletionType.AFTER_COMPLETION; |
| try { |
| writeCommitResponse(clientMessage, serverConnection, commitMessage); |
| } catch (IOException e) { |
| if (isDebugEnabled) { |
| logger.debug("Problem writing reply to client", e); |
| } |
| } catch (RuntimeException e) { |
| try { |
| writeException(clientMessage, e, false, serverConnection); |
| } catch (IOException ioe) { |
| if (isDebugEnabled) { |
| logger.debug("Problem writing reply to client", ioe); |
| } |
| } |
| } |
| serverConnection.setAsTrue(RESPONDED); |
| return; |
| } |
| |
| try { |
| if (type == CompletionType.BEFORE_COMPLETION) { |
| if (isDebugEnabled) { |
| logger.debug("Executing beforeCompletion() notification for transaction {}", |
| clientMessage.getTransactionId()); |
| } |
| Throwable failureException = null; |
| try { |
| txProxy.setIsJTA(true); |
| txProxy.beforeCompletion(); |
| try { |
| writeReply(clientMessage, serverConnection); |
| } catch (IOException e) { |
| if (isDebugEnabled) { |
| logger.debug("Problem writing reply to client", e); |
| } |
| } |
| serverConnection.setAsTrue(RESPONDED); |
| } catch (ReplyException e) { |
| failureException = e.getCause(); |
| } catch (Exception e) { |
| failureException = e; |
| } |
| if (failureException != null) { |
| try { |
| writeException(clientMessage, failureException, false, serverConnection); |
| } catch (IOException ioe) { |
| if (isDebugEnabled) { |
| logger.debug("Problem writing reply to client", ioe); |
| } |
| } |
| serverConnection.setAsTrue(RESPONDED); |
| } |
| } else { |
| try { |
| int status = statusPart.getInt(); |
| if (isDebugEnabled) { |
| logger.debug("Executing afterCompletion({}) notification for transaction {}", |
| status, clientMessage.getTransactionId()); |
| } |
| txProxy.setIsJTA(true); |
| txProxy.setCommitOnBehalfOfRemoteStub(true); |
| txProxy.afterCompletion(status); |
| // GemFire commits during afterCompletion - send the commit info back to the client |
| // where it can be applied to the local cache |
| TXCommitMessage cmsg = txProxy.getCommitMessage(); |
| try { |
| writeCommitResponse(clientMessage, serverConnection, cmsg); |
| txMgr.removeHostedTXState(txProxy.getTxId()); |
| } catch (IOException e) { |
| // not much can be done here |
| if (isDebugEnabled || (e instanceof MessageTooLargeException)) { |
| logger.warn("Problem writing reply to client", e); |
| } |
| } |
| serverConnection.setAsTrue(RESPONDED); |
| } catch (RuntimeException e) { |
| try { |
| writeException(clientMessage, e, false, serverConnection); |
| } catch (IOException ioe) { |
| if (isDebugEnabled) { |
| logger.debug("Problem writing reply to client", ioe); |
| } |
| } |
| serverConnection.setAsTrue(RESPONDED); |
| } |
| } |
| } catch (Exception e) { |
| writeException(clientMessage, MessageType.EXCEPTION, e, false, serverConnection); |
| serverConnection.setAsTrue(RESPONDED); |
| } |
| if (isDebugEnabled) { |
| logger.debug("Sent tx synchronization response"); |
| } |
| } |
| |
| void writeCommitResponse(Message clientMessage, ServerConnection serverConnection, |
| TXCommitMessage commitMessage) throws IOException { |
| CommitCommand.writeCommitResponse(commitMessage, clientMessage, serverConnection); |
| } |
| |
| InternalDistributedMember getDistributedMember(ServerConnection serverConnection) { |
| return (InternalDistributedMember) serverConnection.getProxyID().getDistributedMember(); |
| } |
| |
| TXManagerImpl getTXManager(ServerConnection serverConnection) { |
| return (TXManagerImpl) serverConnection.getCache().getCacheTransactionManager(); |
| } |
| } |