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 package examples;
18
19
20 import java.io.IOException;
21
22 import javax.servlet.jsp.JspException;
23 import javax.servlet.jsp.JspTagException;
24
25 /**
26 * Log the contents of the body. Could be used to handle errors etc.
27 */
28 public class LogTag
29 extends ExampleTagBase {
30 boolean toBrowser = false;
31
32 public void setToBrowser(String value) {
33 if (value == null)
34 toBrowser = false;
35 else if (value.equalsIgnoreCase("true"))
36 toBrowser = true;
37 else
38 toBrowser = false;
39 }
40
41 public int doStartTag() throws JspException {
42 return EVAL_BODY_TAG;
43 }
44
45 public int doAfterBody() throws JspException {
46 try {
47 String s = bodyOut.getString();
48 System.err.println(s);
49 if (toBrowser)
50 bodyOut.writeOut(bodyOut.getEnclosingWriter());
51 return SKIP_BODY;
52 } catch (IOException ex) {
53 throw new JspTagException(ex.toString());
54 }
55 }
56 }
57
58
59
60