01 /*
02 * Licensed to the Apache Software Foundation (ASF) under one
03 * or more contributor license agreements. See the NOTICE file
04 * distributed with this work for additional information
05 * regarding copyright ownership. The ASF licenses this file
06 * to you under the Apache License, Version 2.0 (the
07 * "License"); you may not use this file except in compliance
08 * with the License. You may obtain a copy of the License at
09 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 *
20 */
21 package org.apache.qpid.tools.messagestore.commands;
22
23 import org.apache.qpid.tools.messagestore.MessageStoreTool;
24 import org.apache.qpid.server.queue.AMQQueue;
25
26 public class Purge extends Move
27 {
28 public Purge(MessageStoreTool tool)
29 {
30 super(tool);
31 }
32
33 public String help()
34 {
35 return "Purge messages from a queue.\n" +
36 "The currently selected message set will be purged from the specifed queue.\n" +
37 "Alternatively the values can be provided on the command line.";
38 }
39
40 public String usage()
41 {
42 return "purge from=<queue> [msgids=<msgids eg, 1,2,4-10>]";
43 }
44
45 public String getCommand()
46 {
47 return "purge";
48 }
49
50
51 protected boolean checkRequirements(AMQQueue fromQueue, AMQQueue toQueue, java.util.List<Long> msgids)
52 {
53 if (fromQueue == null)
54 {
55 _console.println("Source queue not specifed.");
56 _console.println(usage());
57 return false;
58 }
59
60 return true;
61 }
62
63 protected void doCommand(AMQQueue fromQueue, long start, long end, AMQQueue toQueue)
64 {
65 fromQueue.removeMessagesFromQueue(start, end, _storeContext);
66 }
67 }
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