--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/java.xml/share/classes/com/sun/org/apache/bcel/internal/classfile/ConstantValue.java Sun Aug 17 15:51:56 2014 +0100
@@ -0,0 +1,181 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+package com.sun.org.apache.bcel.internal.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
+ * <http://www.apache.org/>.
+ */
+
+import com.sun.org.apache.bcel.internal.Constants;
+import java.io.*;
+
+/**
+ * This class is derived from <em>Attribute</em> and represents a constant
+ * value, i.e., a default value for initializing a class field.
+ * This class is instantiated by the <em>Attribute.readAttribute()</em> method.
+ *
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @see Attribute
+ */
+public final class ConstantValue extends Attribute {
+ private int constantvalue_index;
+
+ /**
+ * Initialize from another object. Note that both objects use the same
+ * references (shallow copy). Use clone() for a physical copy.
+ */
+ public ConstantValue(ConstantValue c) {
+ this(c.getNameIndex(), c.getLength(), c.getConstantValueIndex(),
+ c.getConstantPool());
+ }
+
+ /**
+ * Construct object from file stream.
+ * @param name_index Name index in constant pool
+ * @param length Content length in bytes
+ * @param file Input stream
+ * @param constant_pool Array of constants
+ * @throw IOException
+ */
+ ConstantValue(int name_index, int length, DataInputStream file,
+ ConstantPool constant_pool) throws IOException
+ {
+ this(name_index, length, (int)file.readUnsignedShort(), constant_pool);
+ }
+
+ /**
+ * @param name_index Name index in constant pool
+ * @param length Content length in bytes
+ * @param constantvalue_index Index in constant pool
+ * @param constant_pool Array of constants
+ */
+ public ConstantValue(int name_index, int length,
+ int constantvalue_index,
+ ConstantPool constant_pool)
+ {
+ super(Constants.ATTR_CONSTANT_VALUE, name_index, length, constant_pool);
+ this.constantvalue_index = constantvalue_index;
+ }
+
+ /**
+ * 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.visitConstantValue(this);
+ }
+ /**
+ * Dump constant value attribute to file stream on binary format.
+ *
+ * @param file Output file stream
+ * @throws IOException
+ */
+ public final void dump(DataOutputStream file) throws IOException
+ {
+ super.dump(file);
+ file.writeShort(constantvalue_index);
+ }
+ /**
+ * @return Index in constant pool of constant value.
+ */
+ public final int getConstantValueIndex() { return constantvalue_index; }
+
+ /**
+ * @param constantvalue_index.
+ */
+ public final void setConstantValueIndex(int constantvalue_index) {
+ this.constantvalue_index = constantvalue_index;
+ }
+
+ /**
+ * @return String representation of constant value.
+ */
+ public final String toString() {
+ Constant c = constant_pool.getConstant(constantvalue_index);
+
+ String buf;
+ int i;
+
+ // Print constant to string depending on its type
+ switch(c.getTag()) {
+ case Constants.CONSTANT_Long: buf = "" + ((ConstantLong)c).getBytes(); break;
+ case Constants.CONSTANT_Float: buf = "" + ((ConstantFloat)c).getBytes(); break;
+ case Constants.CONSTANT_Double: buf = "" + ((ConstantDouble)c).getBytes(); break;
+ case Constants.CONSTANT_Integer: buf = "" + ((ConstantInteger)c).getBytes(); break;
+ case Constants.CONSTANT_String:
+ i = ((ConstantString)c).getStringIndex();
+ c = constant_pool.getConstant(i, Constants.CONSTANT_Utf8);
+ buf = "\"" + Utility.convertString(((ConstantUtf8)c).getBytes()) + "\"";
+ break;
+
+ default:
+ throw new IllegalStateException("Type of ConstValue invalid: " + c);
+ }
+
+ return buf;
+ }
+
+ /**
+ * @return deep copy of this attribute
+ */
+ public Attribute copy(ConstantPool constant_pool) {
+ ConstantValue c = (ConstantValue)clone();
+ c.constant_pool = constant_pool;
+ return c;
+ }
+}