ServletContextTreeLogger


1   /*
2    * Copyright 2006 Google Inc.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5    * use this file except in compliance with the License. You may obtain a copy of
6    * the License at
7    * 
8    * http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations under
14   * the License.
15   */
16  package com.google.gwt.dev.util.log;
17  
18  import javax.servlet.ServletContext  ;
19  
20  /**
21   * Tree logger that logs servlet context information.
22   */
23  public class ServletContextTreeLogger extends AbstractTreeLogger {
24  
25    private final ServletContext   ctx;
26  
27    public ServletContextTreeLogger(ServletContext   ctx) {
28      this.ctx = ctx;
29    }
30  
31    protected AbstractTreeLogger doBranch() {
32      return new ServletContextTreeLogger(ctx);
33    }
34  
35    protected void doCommitBranch(AbstractTreeLogger childBeingCommitted,
36        Type type, String   msg, Throwable   caught) {
37      doLog(childBeingCommitted.getBranchedIndex(), type, msg, caught);
38    }
39  
40    protected void doLog(int indexOfLogEntryWithinParentLogger, Type type,
41        String   msg, Throwable   caught) {
42      if (caught != null) {
43        ctx.log(msg, caught);
44      } else {
45        ctx.log(msg);
46      }
47    }
48  }
49

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