| /* |
| * 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.tx; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.cache.CacheException; |
| import org.apache.geode.distributed.internal.ClusterDistributionManager; |
| import org.apache.geode.distributed.internal.DistributionManager; |
| import org.apache.geode.distributed.internal.DistributionStats; |
| 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.cache.DistributedRegion; |
| import org.apache.geode.internal.cache.LocalRegion; |
| import org.apache.geode.internal.cache.RemoteOperationException; |
| 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; |
| |
| /** |
| * This message is used to implement clear. It is only used when a region is not a replica and has |
| * concurrency checks enabled and some other member has a replica. In that case it sends this |
| * message to the replica to ask it to do the clear. |
| * |
| * @since GemFire 7.0 |
| */ |
| public class RemoteClearMessage extends RemoteOperationMessageWithDirectReply { |
| private static final Logger logger = LogService.getLogger(); |
| |
| private enum Operation { |
| CLEAR, |
| } |
| |
| private transient DistributedRegion region; |
| |
| public RemoteClearMessage() {} |
| |
| public static RemoteClearMessage create(InternalDistributedMember recipient, |
| DistributedRegion region) { |
| return new RemoteClearMessage(recipient, region, Operation.CLEAR); |
| } |
| |
| private RemoteClearMessage(InternalDistributedMember recipient, DistributedRegion region, |
| Operation op) { |
| super(recipient, region.getFullPath(), |
| new RemoteOperationResponse(region.getSystem(), recipient)); |
| this.region = region; |
| } |
| |
| public void distribute() throws RemoteOperationException { |
| RemoteOperationResponse p = (RemoteOperationResponse) this.processor; |
| |
| Set<?> failures = region.getDistributionManager().putOutgoing(this); |
| if (failures != null && failures.size() > 0) { |
| throw new RemoteOperationException(String.format("Failed sending < %s >", this)); |
| } |
| |
| p.waitForRemoteResponse(); |
| } |
| |
| @Override |
| protected boolean operateOnRegion(ClusterDistributionManager dm, LocalRegion r, long startTime) |
| throws CacheException, RemoteOperationException { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "RemoteClearMessage operateOnRegion: {}", r.getFullPath()); |
| } |
| |
| r.waitOnInitialization(); // bug #43371 - accessing a region before it's initialized |
| |
| r.clear(); |
| |
| RemoteClearReplyMessage.send(getSender(), getProcessorId(), getReplySender(dm)); |
| |
| // Unless there was an exception thrown, this message handles sending the response |
| return false; |
| } |
| |
| @Override |
| protected void appendFields(StringBuffer buff) { |
| super.appendFields(buff); |
| } |
| |
| @Override |
| public int getDSFID() { |
| return R_CLEAR_MSG; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| in.readByte(); // for backwards compatibility |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| out.writeByte(Operation.CLEAR.ordinal()); // for backwards compatibility |
| } |
| |
| public static class RemoteClearReplyMessage extends ReplyMessage { |
| |
| /** |
| * Empty constructor to conform to DataSerializable interface |
| */ |
| public RemoteClearReplyMessage() {} |
| |
| private RemoteClearReplyMessage(int processorId) { |
| this.processorId = processorId; |
| } |
| |
| /** Send an ack */ |
| public static void send(InternalDistributedMember recipient, int processorId, |
| ReplySender replySender) { |
| Assert.assertTrue(recipient != null, "RemoteClearReplyMessage NULL recipient"); |
| RemoteClearReplyMessage m = new RemoteClearReplyMessage(processorId); |
| 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 (processor == null) { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "RemoteClearReplyMessage processor not found"); |
| } |
| return; |
| } |
| processor.process(this); |
| |
| dm.getStats().incReplyMessageTime(DistributionStats.getStatTime() - startTime); |
| } |
| |
| @Override |
| public int getDSFID() { |
| return R_CLEAR_MSG_REPLY; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer sb = new StringBuffer(); |
| sb.append("RemoteClearReplyMessage ").append("processorid=").append(this.processorId) |
| .append(" reply to sender ").append(this.getSender()); |
| return sb.toString(); |
| } |
| } |
| } |