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 }