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 }