package org.apache.bcel.classfile; /* ==================================================================== * The Apache Software License, Version 1.1 * * Copyright (c) 2001 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 acknowledgment: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Apache" and "Apache Software Foundation" and * "Apache BCEL" 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", * "Apache BCEL", nor may "Apache" appear in their name, without * prior written permission of the Apache Software Foundation. * * 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 * . */ import org.apache.bcel.Constants; import java.io.*; /** * This class is derived from the abstract * Constant class * and represents a reference to a Utf8 encoded string. * * @version $Id: ConstantUtf8.java,v 1.3 2002/12/08 16:04:37 mdahm Exp $ * @author M. Dahm * @see Constant */ public final class ConstantUtf8 extends Constant { /** * */ private static final long serialVersionUID = -5990248333712937078L; private String bytes; /** * Initialize from another object. */ public ConstantUtf8(ConstantUtf8 c) { this(c.getBytes()); } /** * Initialize instance from file data. * * @param file Input stream * @throws IOException */ ConstantUtf8(DataInputStream file) throws IOException { super(Constants.CONSTANT_Utf8); bytes = file.readUTF(); } /** * @param bytes Data */ public ConstantUtf8(String bytes) { super(Constants.CONSTANT_Utf8); if(bytes == null) throw new IllegalArgumentException("bytes must not be null!"); this.bytes = bytes; } /** * Called by objects that are traversing the nodes of the tree implicitely * defined by the contents of a Java class. I.e., the hierarchy of methods, * fields, attributes, etc. spawns a tree of objects. * * @param v Visitor object */ public void accept(Visitor v) { v.visitConstantUtf8(this); } /** * Dump String in Utf8 format to file stream. * * @param file Output file stream * @throws IOException */ public final void dump(DataOutputStream file) throws IOException { file.writeByte(tag); file.writeUTF(bytes); } /** * @return Data converted to string. */ public final String getBytes() { return bytes; } /** * @param bytes. */ public final void setBytes(String bytes) { this.bytes = bytes; } /** * @return String representation */ public final String toString() { return super.toString() + "(\"" + Utility.replace(bytes, "\n", "\\n") + "\")"; } }