001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package examples; 018 019 020 import java.io.IOException; 021 022 import javax.servlet.jsp.JspException; 023 import javax.servlet.jsp.JspTagException; 024 025 /** 026 * Log the contents of the body. Could be used to handle errors etc. 027 */ 028 public class LogTag 029 extends ExampleTagBase { 030 boolean toBrowser = false; 031 032 public void setToBrowser(String value) { 033 if (value == null) 034 toBrowser = false; 035 else if (value.equalsIgnoreCase("true")) 036 toBrowser = true; 037 else 038 toBrowser = false; 039 } 040 041 public int doStartTag() throws JspException { 042 return EVAL_BODY_TAG; 043 } 044 045 public int doAfterBody() throws JspException { 046 try { 047 String s = bodyOut.getString(); 048 System.err.println(s); 049 if (toBrowser) 050 bodyOut.writeOut(bodyOut.getEnclosingWriter()); 051 return SKIP_BODY; 052 } catch (IOException ex) { 053 throw new JspTagException(ex.toString()); 054 } 055 } 056 } 057 058 059 060