/*   
 *  Copyright 1999-2004 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package examples;


import java.io.IOException;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.BodyTag;

/**
 * Log the contents of the body. Could be used to handle errors etc. 
 */
public class LogTag 
    extends ExampleTagBase
    implements BodyTag 
{
    boolean toBrowser = false;
    public void resetCustomAttributes() {}

    
    public void setToBrowser(String value) {
        if (value == null)
            toBrowser = false;
        else if (value.equalsIgnoreCase("true"))
            toBrowser = true;
        else
            toBrowser = false;
    }

    public int doStartTag() throws JspException {
        return EVAL_BODY_TAG;
    }
    
    public int doAfterBody() throws JspException {
        try {
            String s = bodyOut.getString();
            System.err.println(s);
            if (toBrowser)
                bodyOut.writeOut(bodyOut.getEnclosingWriter());
            return SKIP_BODY;
        } catch (IOException ex) {
            throw new JspTagException(ex.toString());
        }
    }
}