| /* |
| * 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.partitioned; |
| |
| 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.CancelException; |
| 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.DistributionMessage; |
| import org.apache.geode.distributed.internal.InternalDistributedSystem; |
| import org.apache.geode.distributed.internal.OperationExecutors; |
| import org.apache.geode.distributed.internal.ReplyException; |
| import org.apache.geode.distributed.internal.ReplyMessage; |
| import org.apache.geode.distributed.internal.ReplyProcessor21; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.Assert; |
| import org.apache.geode.internal.cache.ForceReattemptException; |
| import org.apache.geode.internal.cache.PartitionedRegion; |
| 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; |
| |
| /** |
| * |
| * The primary request message signals bucket owners to re-select the primary owner of the bucket. |
| * It is sent by client threads which need to use the bucket, however do not know of its primary |
| * location. |
| * |
| * |
| */ |
| public class PrimaryRequestMessage extends PartitionMessage { |
| private static final Logger logger = LogService.getLogger(); |
| |
| private static final long serialVersionUID = 1L; |
| |
| /** The bucketId needing primary */ |
| private int bucketId; |
| |
| /** |
| * Send request for primary election |
| * |
| * @param recipients those members which own the bucket |
| * @param r the Partitioned Region which uses/owns the bucket |
| * @param bucketId the idenity of the bucket |
| * @return a response object on which the caller waits for acknowledgement of which member is the |
| * primary |
| * @throws ForceReattemptException if the message was unable to be sent |
| */ |
| public static PrimaryResponse send(Set recipients, PartitionedRegion r, int bucketId) |
| throws ForceReattemptException { |
| Assert.assertTrue(recipients != null, "PrimaryRequestMessage NULL recipient"); |
| PrimaryResponse p = new PrimaryResponse(r.getSystem(), recipients); |
| PrimaryRequestMessage m = new PrimaryRequestMessage(recipients, r.getPRId(), p, bucketId); |
| m.setTransactionDistributed(r.getCache().getTxManager().isDistributed()); |
| |
| Set failures = r.getDistributionManager().putOutgoing(m); |
| if (failures != null && failures.size() > 0) { |
| throw new ForceReattemptException( |
| String.format("Failed sending < %s >", m)); |
| } |
| |
| return p; |
| } |
| |
| public PrimaryRequestMessage() {} |
| |
| private PrimaryRequestMessage(Set recipients, int regionId, ReplyProcessor21 processor, int bId) { |
| super(recipients, regionId, processor); |
| this.bucketId = bId; |
| } |
| |
| @Override |
| public boolean isSevereAlertCompatible() { |
| // allow forced-disconnect processing for all cache op messages |
| return true; |
| } |
| |
| @Override |
| protected boolean operateOnPartitionedRegion(ClusterDistributionManager dm, PartitionedRegion pr, |
| long startTime) throws CacheException, ForceReattemptException { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "PrimaryRequestMessage operateOnRegion: {}", |
| pr.getFullPath()); |
| } |
| |
| pr.checkReadiness(); |
| final boolean isPrimary; |
| // TODO, I am sure if this is the method to call to elect the primary -- mthomas 4/19/2007 |
| if (dm.getId().equals(pr.getBucketPrimary(this.bucketId))) { |
| isPrimary = true; |
| } else { |
| isPrimary = false; |
| } |
| |
| PrimaryRequestReplyMessage.sendReply(getSender(), getProcessorId(), isPrimary, dm); |
| return false; |
| } |
| |
| @Override |
| public int getDSFID() { |
| return PR_PRIMARY_REQUEST_MESSAGE; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.bucketId = in.readInt(); |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| out.writeInt(this.bucketId); |
| } |
| |
| @Override |
| public int getProcessorType() { |
| return OperationExecutors.WAITING_POOL_EXECUTOR; |
| } |
| |
| /** |
| * The reply to a PrimarRequestMessage, indicating if the sender is the primary |
| */ |
| public static class PrimaryRequestReplyMessage extends ReplyMessage { |
| private static final long serialVersionUID = 1L; |
| |
| public volatile boolean isPrimary; |
| |
| protected static void sendReply(InternalDistributedMember member, int procId, boolean isPrimary, |
| DistributionManager dm) { |
| dm.putOutgoing(new PrimaryRequestReplyMessage(member, procId, isPrimary)); |
| } |
| |
| public PrimaryRequestReplyMessage() {} |
| |
| private PrimaryRequestReplyMessage(InternalDistributedMember member, int procId, |
| boolean isPrimary2) { |
| setRecipient(member); |
| setProcessorId(procId); |
| this.isPrimary = isPrimary2; |
| } |
| |
| @Override |
| public int getDSFID() { |
| return PR_PRIMARY_REQUEST_REPLY_MESSAGE; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.isPrimary = in.readBoolean(); |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| out.writeBoolean(this.isPrimary); |
| } |
| } |
| |
| /** |
| * A processor to capture the member who was selected as primary for the bucket requested |
| * |
| * @since GemFire 5.1 |
| */ |
| public static class PrimaryResponse extends ReplyProcessor21 { |
| private volatile PrimaryRequestReplyMessage msg; |
| |
| protected PrimaryResponse(InternalDistributedSystem ds, Set recipients) { |
| super(ds, recipients); |
| } |
| |
| @Override |
| public void process(DistributionMessage msg) { |
| try { |
| if (msg instanceof PrimaryRequestReplyMessage) { |
| PrimaryRequestReplyMessage reply = (PrimaryRequestReplyMessage) msg; |
| if (reply.isPrimary) { |
| this.msg = reply; |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "PrimaryRequestResponse primary is {}", |
| this.msg.getSender()); |
| } |
| } else { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace("PrimaryRequestResponse {} is not primary", this.msg.getSender()); |
| } |
| } |
| } else { |
| Assert.assertTrue(msg instanceof ReplyMessage); |
| } |
| } finally { |
| super.process(msg); |
| } |
| } |
| |
| public InternalDistributedMember waitForPrimary() throws ForceReattemptException { |
| try { |
| waitForRepliesUninterruptibly(); |
| } catch (ReplyException e) { |
| Throwable t = e.getCause(); |
| if (t instanceof CancelException) { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, |
| "NodeResponse got remote CacheClosedException, throwing PartitionedRegionCommunication Exception. {}", |
| t.getMessage(), t); |
| } |
| throw new ForceReattemptException( |
| "NodeResponse got remote CacheClosedException, throwing PartitionedRegionCommunication Exception.", |
| t); |
| } |
| e.handleCause(); |
| } |
| return this.msg.getSender(); |
| } |
| } |
| |
| } |