1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.log4j.chainsaw;
19
20 import java.util.ArrayList;
21 import java.util.HashMap;
22 import java.util.Iterator;
23 import java.util.List;
24 import java.util.Map;
25
26 import org.apache.log4j.spi.LoggingEvent;
27
28
29 /**
30 * A container class that contains a group of events split up
31 * into branches based on Identifiers
32 * @author Paul Smith <psmith@apache.org>
33 * @author Scott Deboy <sdeboy@apache.org>
34 *
35 */
36 class ChainsawEventBatch {
37 private Map identEventMap = new HashMap();
38
39 ChainsawEventBatch() {
40 }
41
42 /**
43 * @param ident
44 * @param e
45 */
46 void addEvent(String ident, LoggingEvent e) {
47 List events = (List)identEventMap.get(ident);
48
49 if (events == null) {
50 events = new ArrayList();
51 identEventMap.put(ident, events);
52 }
53
54 events.add(e);
55 }
56
57 /**
58 * Returns an iterator of Identifier strings that this payload contains.
59 *
60 * The values returned from this iterator can be used to query the
61 *
62 * @return Iterator
63 */
64 Iterator identifierIterator() {
65 return identEventMap.keySet().iterator();
66 }
67
68 /**
69 * Returns a Collection of LoggingEvent objects that
70 * are bound to the identifier
71 * @param identifier
72 * @return Collection of LoggingEvent instances
73 */
74 List entrySet(String identifier) {
75 return (List) identEventMap.get(identifier);
76 }
77 }