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IOBean.javaAPI DocGlassfish v2 API2931Sat May 05 19:17:12 BST 2007org.apache.taglibs.standard.examples.util

IOBean.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * Portions Copyright Apache Software Foundation.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
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 */

package org.apache.taglibs.standard.examples.util;

import java.io.*;
import javax.servlet.jsp.JspException;

/**
 * <p>String repository for Reader/Writer.
 *
 * @author Pierre Delisle
 * @version $Revision: 1.3 $ $Date: 2007/05/06 02:17:12 $
 */
public class IOBean {
    StringWriter stringWriter = null;
    String content = null;

    public Reader getReader() throws JspException {
	//p("getReader()");
	if (content == null) {
	    if (stringWriter == null) {
		throw new JspException(
		    "content must first be added to the bean via the writer");
	    }
	    content = stringWriter.toString();
	}
	return new StringReader(content);
    }

    public Writer getWriter() {
	//p("getWriter()");
	content = null;
	stringWriter = new StringWriter();
	return stringWriter;
    }

    public void release() {
	stringWriter = null;
	content = null;
    }

    private void p(String s) {
	System.out.println("[IOBean] " + s);
    }
}