| /* |
| * 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.distributed.internal.DistributionManager; |
| |
| /** |
| * A message that is sent to a particular app vm to request all the subregions of a given parent |
| * region. |
| */ |
| public class ObjectNamesRequest extends RegionAdminRequest implements Cancellable { |
| // instance variables |
| private transient boolean cancelled; |
| private transient ObjectNamesResponse resp; |
| |
| /** |
| * Returns a <code>ObjectNamesRequest</code> to be sent to the specified recipient. |
| */ |
| public static ObjectNamesRequest create() { |
| ObjectNamesRequest m = new ObjectNamesRequest(); |
| return m; |
| } |
| |
| public ObjectNamesRequest() { |
| friendlyName = "List cached objects"; |
| } |
| |
| /** |
| * Must return a proper response to this request. |
| * |
| */ |
| @Override |
| protected AdminResponse createResponse(DistributionManager dm) { |
| CancellationRegistry.getInstance().registerMessage(this); |
| resp = ObjectNamesResponse.create(dm, this.getSender()); |
| if (cancelled) { |
| return null; |
| } |
| resp.buildNames(this.getRegion(dm.getSystem())); |
| if (cancelled) { |
| return null; |
| } |
| CancellationRegistry.getInstance().deregisterMessage(this); |
| return resp; |
| } |
| |
| @Override |
| public synchronized void cancel() { |
| cancelled = true; |
| if (resp != null) { |
| resp.cancel(); |
| } |
| } |
| |
| @Override |
| public int getDSFID() { |
| return OBJECT_NAMES_REQUEST; |
| } |
| |
| @Override |
| public void toData(DataOutput out) throws IOException { |
| super.toData(out); |
| } |
| |
| @Override |
| public void fromData(DataInput in) throws IOException, ClassNotFoundException { |
| super.fromData(in); |
| } |
| |
| @Override |
| public String toString() { |
| return "ObjectNamesRequest from " + getRecipient() + " region=" + getRegionName(); |
| } |
| } |