| /* |
| * 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.admin.internal; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| 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.admin.SystemMemberCacheEvent; |
| import org.apache.geode.admin.SystemMemberCacheListener; |
| import org.apache.geode.admin.SystemMemberRegionEvent; |
| import org.apache.geode.cache.Cache; |
| import org.apache.geode.cache.Operation; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.distributed.internal.ClusterDistributionManager; |
| import org.apache.geode.distributed.internal.HighPriorityDistributionMessage; |
| import org.apache.geode.distributed.internal.InternalDistributedSystem; |
| import org.apache.geode.internal.logging.LogService; |
| |
| /** |
| * This class processes the message to be delivered to admin node. [This needs to be redesigned and |
| * reimplemented... see 32887] |
| * |
| * @since GemFire 5.0 |
| */ |
| public class SystemMemberCacheEventProcessor { |
| private static final Logger logger = LogService.getLogger(); |
| |
| |
| /* |
| * Sends cache create/close message to Admin VMs |
| */ |
| public static void send(Cache c, Operation op) { |
| send(c, null, op); |
| } |
| |
| /* |
| * Sends region creation/destroy message to Admin VMs |
| */ |
| public static void send(Cache c, Region region, Operation op) { |
| InternalDistributedSystem system = (InternalDistributedSystem) c.getDistributedSystem(); |
| Set recps = system.getDistributionManager().getAdminMemberSet(); |
| // @todo darrel: find out if any of these admin members have region listeners |
| if (recps.isEmpty()) { |
| return; |
| } |
| SystemMemberCacheMessage msg = new SystemMemberCacheMessage(); |
| if (region == null) { |
| msg.regionPath = null; |
| } else { |
| msg.regionPath = region.getFullPath(); |
| } |
| msg.setRecipients(recps); |
| msg.op = op; |
| system.getDistributionManager().putOutgoing(msg); |
| } |
| |
| |
| public static class SystemMemberCacheMessage extends HighPriorityDistributionMessage { |
| protected String regionPath; |
| protected Operation op; |
| |
| @Override |
| protected void process(ClusterDistributionManager dm) { |
| AdminDistributedSystemImpl admin = AdminDistributedSystemImpl.getConnectedInstance(); |
| if (admin == null) { |
| if (logger.isDebugEnabled()) { |
| logger.debug("Ignoring message because there is no admin distributed system present: {}", |
| this); |
| } |
| return; // probably shutting down or still connecting |
| } |
| List listeners = admin.getCacheListeners(); |
| Iterator itr = listeners.iterator(); |
| SystemMemberCacheListener listener = null; |
| while (itr.hasNext()) { |
| listener = (SystemMemberCacheListener) itr.next(); |
| if (this.regionPath == null) { |
| SystemMemberCacheEvent event = new SystemMemberCacheEventImpl(getSender(), this.op); |
| if (this.op == Operation.CACHE_CREATE) { |
| listener.afterCacheCreate(event); |
| } else { |
| listener.afterCacheClose(event); |
| } |
| } else { |
| SystemMemberRegionEvent event = |
| new SystemMemberRegionEventImpl(getSender(), this.op, this.regionPath); |
| if (this.op.isRegionDestroy()) { |
| listener.afterRegionLoss(event); |
| } else { |
| listener.afterRegionCreate(event); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public int getDSFID() { |
| return ADMIN_CACHE_EVENT_MESSAGE; |
| } |
| |
| @Override |
| public void fromData(DataInput in) throws IOException, ClassNotFoundException { |
| super.fromData(in); |
| this.regionPath = DataSerializer.readString(in); |
| this.op = Operation.fromOrdinal(in.readByte()); |
| } |
| |
| @Override |
| public void toData(DataOutput out) throws IOException { |
| super.toData(out); |
| DataSerializer.writeString(this.regionPath, out); |
| out.writeByte(this.op.ordinal); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer buff = new StringBuffer(); |
| buff.append("SystemMemberCacheMessage (region='"); |
| buff.append(this.regionPath); |
| buff.append("'; sender="); |
| buff.append(this.sender); |
| buff.append("; op="); |
| buff.append(this.op); |
| buff.append(")"); |
| return buff.toString(); |
| } |
| } |
| } |