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 }