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.color; 19 20 import org.apache.log4j.spi.LoggingEvent; 21 22 import java.awt.*; 23 24 25 /** 26 * Given a LoggingEvent, can determine an appropriate 27 * Color to use based on whatever this implementation 28 * has been coded. 29 * 30 * @author Paul Smith <psmith@apache.org> 31 * @author Scott Deboy <sdeboy@apache.org> 32 */ 33 public interface Colorizer { 34 /** 35 * Given a LoggingEvent, returns a Color to use for background, 36 * or null if this instance cannot determine one, or that 37 * the stanard color should be used. 38 * 39 * @param event 40 * @return background color 41 */ 42 Color getBackgroundColor(LoggingEvent event); 43 44 Color getForegroundColor(LoggingEvent event); 45 }