| /* |
| * 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; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.cache.Cache; |
| import org.apache.geode.distributed.DistributedMember; |
| import org.apache.geode.distributed.internal.ClusterDistributionManager; |
| import org.apache.geode.distributed.internal.DistributionManager; |
| import org.apache.geode.distributed.internal.DistributionMessage; |
| import org.apache.geode.distributed.internal.DistributionStats; |
| import org.apache.geode.distributed.internal.InternalDistributedSystem; |
| import org.apache.geode.distributed.internal.OperationExecutors; |
| import org.apache.geode.distributed.internal.ReplyMessage; |
| import org.apache.geode.distributed.internal.ReplyProcessor21; |
| import org.apache.geode.distributed.internal.ReplySender; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.Assert; |
| import org.apache.geode.internal.InternalDataSerializer; |
| import org.apache.geode.internal.cache.tx.RemoteOperationMessage.RemoteOperationResponse; |
| import org.apache.geode.internal.logging.log4j.LogMarker; |
| import org.apache.geode.internal.serialization.DeserializationContext; |
| import org.apache.geode.internal.serialization.SerializationContext; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| |
| public class TXRemoteCommitMessage extends TXMessage { |
| private static final Logger logger = LogService.getLogger(); |
| |
| /** for deserialization */ |
| public TXRemoteCommitMessage() { |
| // nothing |
| } |
| |
| public TXRemoteCommitMessage(int txUniqId, InternalDistributedMember onBehalfOfClientMember, |
| ReplyProcessor21 processor) { |
| super(txUniqId, onBehalfOfClientMember, processor); |
| } |
| |
| @Override |
| public int getProcessorType() { |
| return OperationExecutors.WAITING_POOL_EXECUTOR; |
| } |
| |
| public static RemoteCommitResponse send(Cache cache, int txUniqId, |
| InternalDistributedMember onBehalfOfClientMember, DistributedMember recipient) { |
| final InternalDistributedSystem system = |
| (InternalDistributedSystem) cache.getDistributedSystem(); |
| final Set<DistributedMember> recipients = Collections.singleton(recipient); |
| RemoteCommitResponse p = new RemoteCommitResponse(system, recipients); |
| TXMessage msg = new TXRemoteCommitMessage(txUniqId, onBehalfOfClientMember, p); |
| |
| msg.setRecipients(recipients); |
| system.getDistributionManager().putOutgoing(msg); |
| return p; |
| } |
| |
| @Override |
| protected boolean operateOnTx(TXId txId, ClusterDistributionManager dm) |
| throws RemoteOperationException { |
| InternalCache cache = dm.getCache(); |
| TXManagerImpl txMgr = cache.getTXMgr(); |
| |
| if (logger.isDebugEnabled()) { |
| logger.debug("TX: Committing: {}", txId); |
| } |
| final TXStateProxy txState = txMgr.getTXState(); |
| TXCommitMessage commitMessage = txMgr.getRecentlyCompletedMessage(txId); |
| try { |
| // do the actual commit, only if it was not done before |
| if (commitMessage != null) { |
| if (logger.isDebugEnabled()) { |
| logger.debug("TX: found a previously committed transaction:{}", txId); |
| } |
| if (txMgr.isExceptionToken(commitMessage)) { |
| throw txMgr.getExceptionForToken(commitMessage, txId); |
| } |
| } else { |
| // if no TXState was created (e.g. due to only getEntry/size operations |
| // that don't start remote TX) then ignore |
| if (txState != null) { |
| txState.setCommitOnBehalfOfRemoteStub(true); |
| txMgr.commit(); |
| commitMessage = txState.getCommitMessage(); |
| } |
| } |
| } finally { |
| txMgr.removeHostedTXState(txId); |
| } |
| TXRemoteCommitReplyMessage.send(getSender(), getProcessorId(), commitMessage, |
| getReplySender(dm)); |
| |
| /* |
| * return false so there isn't another reply |
| */ |
| return false; |
| } |
| |
| @Override |
| public int getDSFID() { |
| return TX_REMOTE_COMMIT_MESSAGE; |
| } |
| |
| @Override |
| public boolean canStartRemoteTransaction() { |
| // we can reach here when a transaction already completed prior to client failover (bug #42743) |
| return true; |
| } |
| |
| /** |
| * This message is used for the reply to a remote commit operation: a commit from a stub to the tx |
| * host. This is the reply to a {@link TXRemoteCommitMessage}. |
| * |
| * @since GemFire 6.5 |
| */ |
| public static class TXRemoteCommitReplyMessage extends ReplyMessage { |
| |
| private transient TXCommitMessage commitMessage; |
| |
| /* |
| * Used on the fromData side to transfer the value bytes to the requesting thread |
| */ |
| public transient byte[] valueInBytes; |
| |
| /** |
| * Empty constructor to conform to DataSerializable interface |
| */ |
| public TXRemoteCommitReplyMessage() { |
| // nothing |
| } |
| |
| public TXRemoteCommitReplyMessage(DataInput in) throws IOException, ClassNotFoundException { |
| fromData(in, InternalDataSerializer.createDeserializationContext(in)); |
| } |
| |
| private TXRemoteCommitReplyMessage(int processorId, TXCommitMessage val) { |
| setProcessorId(processorId); |
| commitMessage = val; |
| } |
| |
| /** GetReplyMessages are always processed in-line */ |
| @Override |
| public boolean getInlineProcess() { |
| return true; |
| } |
| |
| /** |
| * Return the value from the get operation, serialize it bytes as late as possible to avoid |
| * making un-neccesary byte[] copies. De-serialize those same bytes as late as possible to avoid |
| * using precious threads (aka P2P readers). |
| * |
| * @param recipient the origin VM that performed the get |
| * @param processorId the processor on which the origin thread is waiting |
| * @param val the raw value that will eventually be serialized |
| * @param replySender distribution manager used to send the reply |
| */ |
| public static void send(InternalDistributedMember recipient, int processorId, |
| TXCommitMessage val, ReplySender replySender) throws RemoteOperationException { |
| Assert.assertTrue(recipient != null, "TXRemoteCommitReply NULL reply message"); |
| if (val != null) { |
| val.setClientVersion(null); |
| } |
| TXRemoteCommitReplyMessage m = new TXRemoteCommitReplyMessage(processorId, val); |
| m.setRecipient(recipient); |
| replySender.putOutgoing(m); |
| } |
| |
| /** |
| * Processes this message. This method is invoked by the receiver of the message. |
| * |
| * @param dm the distribution manager that is processing the message. |
| */ |
| @Override |
| public void process(final DistributionManager dm, ReplyProcessor21 processor) { |
| final long startTime = getTimestamp(); |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, |
| "TXRemoteCommitReply process invoking reply processor with processorId:{}", |
| processorId); |
| } |
| |
| if (processor == null) { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "TXRemoteCommitReply processor not found"); |
| } |
| return; |
| } |
| processor.process(this); |
| } |
| |
| @Override |
| public int getDSFID() { |
| return R_REMOTE_COMMIT_REPLY_MESSAGE; |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| DataSerializer.writeObject(commitMessage, out); |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| commitMessage = DataSerializer.readObject(in); |
| } |
| |
| @Override |
| public String toString() { |
| return "TXRemoteCommitReplyMessage " + "processorid=" + processorId |
| + " reply to sender " + getSender(); |
| } |
| |
| public TXCommitMessage getCommitMessage() { |
| // TODO Auto-generated method stub |
| return commitMessage; |
| } |
| } |
| |
| /** |
| * A processor to capture the value returned by |
| * {@link org.apache.geode.internal.cache.TXRemoteCommitMessage.TXRemoteCommitReplyMessage} |
| * |
| * @since GemFire 6.6 |
| */ |
| public static class RemoteCommitResponse extends RemoteOperationResponse { |
| private volatile TXCommitMessage commitMessage; |
| private volatile long start; |
| |
| public RemoteCommitResponse(InternalDistributedSystem ds, Set recipients) { |
| super(ds, recipients, true); |
| } |
| |
| public TXCommitMessage getCommitMessage() { |
| // TODO Auto-generated method stub |
| return commitMessage; |
| } |
| |
| @Override |
| public void process(DistributionMessage msg) { |
| if (DistributionStats.enableClockStats) { |
| start = DistributionStats.getStatTime(); |
| } |
| if (msg instanceof TXRemoteCommitReplyMessage) { |
| TXRemoteCommitReplyMessage reply = (TXRemoteCommitReplyMessage) msg; |
| // De-serialization needs to occur in the requesting thread, not a P2P thread |
| // (or some other limited resource) |
| commitMessage = reply.getCommitMessage(); |
| } |
| super.process(msg); |
| } |
| |
| /** |
| * @return Object associated with the key that was sent in the get message |
| */ |
| public TXCommitMessage waitForResponse() throws RemoteOperationException { |
| waitForRemoteResponse(); |
| if (DistributionStats.enableClockStats) { |
| getDistributionManager().getStats().incReplyHandOffTime(start); |
| } |
| return commitMessage; |
| } |
| } |
| |
| } |