| /* |
| * $Id$ |
| * |
| * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved. |
| * |
| * Redistribution and use of this software and associated documentation |
| * ("Software"), with or without modification, are permitted provided that the |
| * following conditions are met: 1. Redistributions of source code must retain |
| * copyright statements and notices. Redistributions must also contain a copy |
| * of this document. 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 name "groovy" must not be used to endorse or promote products derived |
| * from this Software without prior written permission of The Codehaus. For |
| * written permission, please contact info@codehaus.org. 4. Products derived |
| * from this Software may not be called "groovy" nor may "groovy" appear in |
| * their names without prior written permission of The Codehaus. "groovy" is a |
| * registered trademark of The Codehaus. 5. Due credit should be given to The |
| * Codehaus - http://groovy.codehaus.org/ |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``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 CODEHAUS 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. |
| * |
| */ |
| package org.codehaus.groovy.runtime; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| |
| /** |
| * This class codes around a silly limiation of StringWriter which doesn't allow a StringBuffer |
| * to be passed in as a constructor for some bizzare reason. |
| * So we replicate the behaviour of StringWriter here but allow a StringBuffer to be passed in. |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public class StringBufferWriter extends Writer { |
| |
| private StringBuffer buffer; |
| |
| /** |
| * Create a new string writer which will append the text to the given StringBuffer |
| */ |
| public StringBufferWriter(StringBuffer buffer) { |
| this.buffer = buffer; |
| } |
| |
| /** |
| * Write a single character. |
| */ |
| public void write(int c) { |
| buffer.append((char) c); |
| } |
| |
| /** |
| * Write a portion of an array of characters. |
| * |
| * @param text Array of characters |
| * @param offset Offset from which to start writing characters |
| * @param length Number of characters to write |
| */ |
| public void write(char text[], int offset, int length) { |
| if ((offset < 0) || (offset > text.length) || (length < 0) || ((offset + length) > text.length) || ((offset + length) < 0)) { |
| throw new IndexOutOfBoundsException(); |
| } |
| else if (length == 0) { |
| return; |
| } |
| buffer.append(text, offset, length); |
| } |
| |
| /** |
| * Write a string. |
| */ |
| public void write(String text) { |
| buffer.append(text); |
| } |
| |
| /** |
| * Write a portion of a string. |
| * |
| * @param text the text to be written |
| * @param offset offset from which to start writing characters |
| * @param length Number of characters to write |
| */ |
| public void write(String text, int offset, int length) { |
| buffer.append(text.substring(offset, offset + length)); |
| } |
| |
| /** |
| * Return the buffer's current value as a string. |
| */ |
| public String toString() { |
| return buffer.toString(); |
| } |
| |
| /** |
| * Flush the stream. |
| */ |
| public void flush() { |
| } |
| |
| /** |
| * Closing a <tt>StringWriter</tt> has no effect. The methods in this |
| * class can be called after the stream has been closed without generating |
| * an <tt>IOException</tt>. |
| */ |
| public void close() throws IOException { |
| } |
| } |