| /* |
| * 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.admin.remote; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.geode.CancelException; |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.cache.CacheFactory; |
| import org.apache.geode.cache.server.CacheServer; |
| import org.apache.geode.distributed.internal.DistributionManager; |
| import org.apache.geode.internal.Assert; |
| import org.apache.geode.internal.cache.CacheServerImpl; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.internal.serialization.DeserializationContext; |
| import org.apache.geode.internal.serialization.SerializationContext; |
| |
| /** |
| * A message that is sent in response to a {@link BridgeServerResponse}. It perform an operation on |
| * a cache server and returns the result to the sender. |
| * |
| * @since GemFire 4.0 |
| */ |
| public class BridgeServerResponse extends AdminResponse { |
| |
| /** Information about the cache server that was operated on */ |
| private RemoteBridgeServer bridgeInfo; |
| |
| /** An exception thrown while performing the operation */ |
| private Exception exception; |
| |
| /** |
| * Creates a {@code BridgeServerResponse} in response to the given request. |
| */ |
| static BridgeServerResponse create(DistributionManager dm, BridgeServerRequest request) { |
| BridgeServerResponse m = new BridgeServerResponse(); |
| m.setRecipient(request.getSender()); |
| |
| try { |
| InternalCache cache = (InternalCache) CacheFactory.getInstanceCloseOk(dm.getSystem()); |
| |
| if (request.getCacheId() != System.identityHashCode(cache)) { |
| m.bridgeInfo = null; |
| |
| } else { |
| int operation = request.getOperation(); |
| switch (operation) { |
| case BridgeServerRequest.ADD_OPERATION: { |
| CacheServerImpl bridge = (CacheServerImpl) cache.addCacheServer(); |
| m.bridgeInfo = new RemoteBridgeServer(bridge); |
| break; |
| } |
| |
| case BridgeServerRequest.INFO_OPERATION: { |
| int id = request.getBridgeId(); |
| // Note that since this is only an informational request |
| // it is not necessary to synchronize on allBridgeServersLock |
| for (CacheServer cacheServer : cache.getCacheServers()) { |
| CacheServerImpl bridge = (CacheServerImpl) cacheServer; |
| if (System.identityHashCode(bridge) == id) { |
| m.bridgeInfo = new RemoteBridgeServer(bridge); |
| break; |
| |
| } else { |
| m.bridgeInfo = null; |
| } |
| } |
| break; |
| } |
| |
| case BridgeServerRequest.START_OPERATION: { |
| RemoteBridgeServer config = request.getBridgeInfo(); |
| for (CacheServer cacheServer : cache.getCacheServers()) { |
| CacheServerImpl bridge = (CacheServerImpl) cacheServer; |
| if (System.identityHashCode(bridge) == config.getId()) { |
| bridge.configureFrom(config); |
| bridge.start(); |
| m.bridgeInfo = new RemoteBridgeServer(bridge); |
| break; |
| |
| } else { |
| m.bridgeInfo = null; |
| } |
| } |
| break; |
| } |
| |
| case BridgeServerRequest.STOP_OPERATION: { |
| RemoteBridgeServer config = request.getBridgeInfo(); |
| for (CacheServer cacheServer : cache.getCacheServers()) { |
| CacheServerImpl bridge = (CacheServerImpl) cacheServer; |
| if (System.identityHashCode(bridge) == config.getId()) { |
| bridge.stop(); |
| m.bridgeInfo = new RemoteBridgeServer(bridge); |
| break; |
| |
| } else { |
| m.bridgeInfo = null; |
| } |
| } |
| break; |
| } |
| |
| default: |
| Assert.assertTrue(false, "Unknown cache server operation: " + operation); |
| } |
| } |
| |
| } catch (CancelException ignore) { |
| m.bridgeInfo = null; |
| |
| } catch (Exception ex) { |
| m.exception = ex; |
| m.bridgeInfo = null; |
| } |
| return m; |
| } |
| |
| /** |
| * Returns information about the bridge operated on |
| */ |
| RemoteBridgeServer getBridgeInfo() { |
| return this.bridgeInfo; |
| } |
| |
| /** |
| * Returns an exception that was thrown while processing the request. |
| */ |
| public Exception getException() { |
| return this.exception; |
| } |
| |
| @Override |
| public int getDSFID() { |
| return BRIDGE_SERVER_RESPONSE; |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| DataSerializer.writeObject(this.bridgeInfo, out); |
| DataSerializer.writeObject(this.exception, out); |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.bridgeInfo = DataSerializer.readObject(in); |
| this.exception = DataSerializer.readObject(in); |
| } |
| } |