Util.java
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上传日期:2017-07-13
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文件大小:4k
源码类别:
Applet
开发平台:
Java
- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 1999-2003 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution, if
- * any, must include the following acknowlegement:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowlegement may appear in the software itself,
- * if and wherever such third-party acknowlegements normally appear.
- *
- * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
- * Foundation" must not be used to endorse or promote products derived
- * from this software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- * nor may "Apache" appear in their names without prior written
- * permission of the Apache Group.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- *
- */
- package org.apache.taglibs.standard.examples.util;
- import java.io.*;
- import javax.servlet.jsp.*;
- /**
- * <p>Utility class for examples webapp.
- *
- * @author Pierre Delisle
- * @version $Revision: 1.3 $ $Date: 2006/10/12 14:31:27 $
- */
- public class Util {
- public static Writer castToWriter(Object obj) throws JspException {
- if (obj instanceof OutputStream) {
- return new OutputStreamWriter((OutputStream)obj);
- } else if (obj instanceof Writer) {
- return (Writer)obj;
- /*@@@
- } else if (obj instanceof String) {
- return new StringWriter();
- */
- }
- throw new JspException("Invalid type '" + obj.getClass().getName() +
- "' for castToWriter()");
- }
- public static Reader castToReader(Object obj) throws JspException {
- if (obj instanceof InputStream) {
- return new InputStreamReader((InputStream)obj);
- } else if (obj instanceof Reader) {
- return (Reader)obj;
- } else if (obj instanceof String) {
- return new StringReader((String)obj);
- }
- throw new JspException("Invalid type '" + obj.getClass().getName() +
- "' for castToReader()");
- }
- }