1 package org.apache.velocity.runtime.log;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import org.apache.velocity.runtime.RuntimeServices;
23 import org.apache.velocity.util.StringUtils;
24
25 /**
26 * Wrapper to make user's custom LogSystem implementations work
27 * with the new LogChute setup.
28 *
29 * @author <a href="mailto:nbubna@apache.org">Nathan Bubna</a>
30 * @version $Id: LogChuteSystem.java 730039 2008-12-30 03:53:19Z byron $
31 * @since 1.5
32 */
33 public class LogChuteSystem implements LogChute
34 {
35
36 private LogSystem logSystem;
37
38 /**
39 * Only classes in this package should be creating this.
40 * Users should not have to mess with this class.
41 * @param wrapMe
42 */
43 protected LogChuteSystem(LogSystem wrapMe)
44 {
45 this.logSystem = wrapMe;
46 }
47
48 /**
49 * @see org.apache.velocity.runtime.log.LogChute#init(org.apache.velocity.runtime.RuntimeServices)
50 */
51 public void init(RuntimeServices rs) throws Exception
52 {
53 logSystem.init(rs);
54 }
55
56 /**
57 * @see org.apache.velocity.runtime.log.LogChute#log(int, java.lang.String)
58 */
59 public void log(int level, String message)
60 {
61 logSystem.logVelocityMessage(level, message);
62 }
63
64 /**
65 * First passes off the message at the specified level,
66 * then passes off stack trace of the Throwable as a
67 * 2nd message at the same level.
68 * @param level
69 * @param message
70 * @param t
71 */
72 public void log(int level, String message, Throwable t)
73 {
74 logSystem.logVelocityMessage(level, message);
75 logSystem.logVelocityMessage(level, StringUtils.stackTrace(t));
76 }
77
78 /**
79 * @see org.apache.velocity.runtime.log.LogChute#isLevelEnabled(int)
80 */
81 public boolean isLevelEnabled(int level)
82 {
83 return true;
84 }
85
86 }