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 org.apache.log4j.spi.LoggingEvent;
21
22 import java.util.*;
23
24
25 /**
26 * A container class that contains a group of events split up
27 * into branches based on Identifiers
28 *
29 * @author Paul Smith <psmith@apache.org>
30 * @author Scott Deboy <sdeboy@apache.org>
31 */
32 class ChainsawEventBatch {
33 private Map<String, List<LoggingEvent>> identEventMap = new HashMap<>();
34
35 ChainsawEventBatch() {
36 }
37
38 /**
39 * @param ident
40 * @param e
41 */
42 void addEvent(String ident, LoggingEvent e) {
43 List<LoggingEvent> events = identEventMap.get(ident);
44
45 if (events == null) {
46 events = new ArrayList<>();
47 identEventMap.put(ident, events);
48 }
49
50 events.add(e);
51 }
52
53 /**
54 * Returns an iterator of Identifier strings that this payload contains.
55 * <p>
56 * The values returned from this iterator can be used to query the
57 *
58 * @return Iterator
59 */
60 Iterator<String> identifierIterator() {
61 return identEventMap.keySet().iterator();
62 }
63
64 /**
65 * Returns a Collection of LoggingEvent objects that
66 * are bound to the identifier
67 *
68 * @param identifier
69 * @return Collection of LoggingEvent instances
70 */
71 List<LoggingEvent> entrySet(String identifier) {
72 return identEventMap.get(identifier);
73 }
74 }