| /* |
| * 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.ArrayList; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.DataSerializer; |
| 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.MessageWithReply; |
| import org.apache.geode.distributed.internal.PooledDistributionMessage; |
| 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.ServerLocation; |
| import org.apache.geode.distributed.internal.ServerLocator; |
| import org.apache.geode.internal.cache.tier.sockets.ClientProxyMembershipID; |
| import org.apache.geode.internal.serialization.DeserializationContext; |
| import org.apache.geode.internal.serialization.SerializationContext; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| |
| /** |
| * A processor for helping a locator find the durable queues for a given durable client id. Asks |
| * each cache server if they have the durable id and builds a list of matching servers. |
| * |
| * @since GemFire 5.7 |
| */ |
| public class FindDurableQueueProcessor extends ReplyProcessor21 { |
| private static final Logger logger = LogService.getLogger(); |
| |
| final ArrayList durableLocations = new ArrayList(); |
| |
| public static ArrayList sendAndFind(ServerLocator locator, ClientProxyMembershipID proxyId, |
| DistributionManager dm) { |
| Set members = ((GridAdvisor) locator.getDistributionAdvisor()).adviseBridgeServers(); |
| if (members.contains(dm.getId())) { |
| // Don't send message to local server, see #50534. |
| Set remoteMembers = new HashSet(members); |
| remoteMembers.remove(dm.getId()); |
| members = remoteMembers; |
| } |
| FindDurableQueueProcessor processor = new FindDurableQueueProcessor(dm, members); |
| |
| FindDurableQueueMessage.send(proxyId, dm, members, processor); |
| try { |
| processor.waitForRepliesUninterruptibly(); |
| } catch (ReplyException e) { |
| e.handleCause(); |
| } |
| ArrayList locations = processor.durableLocations; |
| // This will add any local queues to the list |
| findLocalDurableQueues(proxyId, locations); |
| return locations; |
| } |
| |
| private static void findLocalDurableQueues(ClientProxyMembershipID proxyId, |
| ArrayList<ServerLocation> matches) { |
| InternalCache cache = GemFireCacheImpl.getInstance(); |
| if (cache != null) { |
| List l = cache.getCacheServers(); |
| if (l != null) { |
| Iterator i = l.iterator(); |
| while (i.hasNext()) { |
| CacheServerImpl bs = (CacheServerImpl) i.next(); |
| if (bs.getAcceptor().getCacheClientNotifier().getClientProxy(proxyId) != null) { |
| ServerLocation loc = new ServerLocation(bs.getExternalAddress(), bs.getPort()); |
| matches.add(loc); |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void process(DistributionMessage msg) { |
| // TODO Auto-generated method stub |
| if (msg instanceof FindDurableQueueReply) { |
| FindDurableQueueReply reply = (FindDurableQueueReply) msg; |
| synchronized (durableLocations) { |
| // add me to the durable member set |
| durableLocations.addAll(reply.getMatches()); |
| } |
| } |
| super.process(msg); |
| } |
| |
| /** |
| * Creates a new instance of FindDurableQueueProcessor |
| */ |
| private FindDurableQueueProcessor(DistributionManager dm, Set members) { |
| super(dm, members); |
| } |
| |
| public static class FindDurableQueueMessage extends PooledDistributionMessage |
| implements MessageWithReply { |
| private int processorId; |
| private ClientProxyMembershipID proxyId; |
| |
| protected static void send(ClientProxyMembershipID proxyId, DistributionManager dm, Set members, |
| ReplyProcessor21 proc) { |
| FindDurableQueueMessage msg = new FindDurableQueueMessage(); |
| msg.processorId = proc.getProcessorId(); |
| msg.proxyId = proxyId; |
| msg.setRecipients(members); |
| if (logger.isDebugEnabled()) { |
| logger.debug("FindDurableQueueMessage sending {} to {}", msg, members); |
| } |
| dm.putOutgoing(msg); |
| } |
| |
| @Override |
| public int getProcessorId() { |
| return this.processorId; |
| } |
| |
| public ClientProxyMembershipID getProxyId() { |
| return this.proxyId; |
| } |
| |
| @Override |
| protected void process(final ClusterDistributionManager dm) { |
| ArrayList<ServerLocation> matches = new ArrayList<ServerLocation>(); |
| try { |
| findLocalDurableQueues(proxyId, matches); |
| |
| } finally { |
| FindDurableQueueReply reply = new FindDurableQueueReply(); |
| reply.setProcessorId(this.getProcessorId()); |
| reply.matches = matches; |
| reply.setRecipient(getSender()); |
| if (dm.getId().equals(getSender())) { |
| reply.setSender(getSender()); |
| reply.dmProcess(dm); |
| } else { |
| dm.putOutgoing(reply); |
| } |
| } |
| } |
| |
| @Override |
| public int getDSFID() { |
| return FIND_DURABLE_QUEUE; |
| } |
| |
| @Override |
| protected Object clone() throws CloneNotSupportedException { |
| // TODO Auto-generated method stub |
| return super.clone(); |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.processorId = in.readInt(); |
| this.proxyId = ClientProxyMembershipID.readCanonicalized(in); |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| out.writeInt(this.processorId); |
| DataSerializer.writeObject(this.proxyId, out); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer buff = new StringBuffer(); |
| buff.append("FindDurableQueueMessage (proxyId='").append(this.proxyId) |
| .append("' processorId=").append(this.processorId).append(")"); |
| return buff.toString(); |
| } |
| } |
| |
| public static class FindDurableQueueReply extends ReplyMessage { |
| protected ArrayList matches = null; |
| |
| public ArrayList getMatches() { |
| return this.matches; |
| } |
| |
| @Override |
| public int getDSFID() { |
| return FIND_DURABLE_QUEUE_REPLY; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.matches = DataSerializer.readArrayList(in); |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| DataSerializer.writeArrayList(matches, out); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer buff = new StringBuffer(); |
| buff.append("FindDurableQueueReply (matches='").append(this.matches).append("' processorId=") |
| .append(this.processorId).append(")"); |
| return buff.toString(); |
| } |
| } |
| } |