org.apache.tomcat.util.bcel.classfile.Deprecated Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tomcat.util.bcel.classfile;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.tomcat.util.bcel.Constants;
/**
* This class is derived from Attribute and denotes that this is a
* deprecated method.
* It is instantiated from the Attribute.readAttribute() method.
*
* @version $Id: Deprecated.java 1057670 2011-01-11 14:52:05Z markt $
* @author M. Dahm
* @see Attribute
*/
public final class Deprecated extends Attribute {
private static final long serialVersionUID = 8499975360019639912L;
private byte[] bytes;
/**
* @param name_index Index in constant pool to CONSTANT_Utf8
* @param length Content length in bytes
* @param bytes Attribute contents
* @param constant_pool Array of constants
*/
public Deprecated(int name_index, int length, byte[] bytes, ConstantPool constant_pool) {
super(Constants.ATTR_DEPRECATED, name_index, length, constant_pool);
this.bytes = bytes;
}
/**
* Construct object from file stream.
* @param name_index Index in constant pool to CONSTANT_Utf8
* @param length Content length in bytes
* @param file Input stream
* @param constant_pool Array of constants
* @throws IOException
*/
Deprecated(int name_index, int length, DataInputStream file, ConstantPool constant_pool)
throws IOException {
this(name_index, length, (byte[]) null, constant_pool);
if (length > 0) {
bytes = new byte[length];
file.readFully(bytes);
System.err.println("Deprecated attribute with length > 0");
}
}
/**
* Dump source file attribute to file stream in binary format.
*
* @param file Output file stream
* @throws IOException
*/
@Override
public final void dump( DataOutputStream file ) throws IOException {
super.dump(file);
if (length > 0) {
file.write(bytes, 0, length);
}
}
/**
* @return attribute name
*/
@Override
public final String toString() {
return Constants.ATTRIBUTE_NAMES[Constants.ATTR_DEPRECATED];
}
/**
* @return deep copy of this attribute
*/
@Override
public Attribute copy( ConstantPool _constant_pool ) {
Deprecated c = (Deprecated) clone();
if (bytes != null) {
c.bytes = new byte[bytes.length];
System.arraycopy(bytes, 0, c.bytes, 0, bytes.length);
}
c.constant_pool = _constant_pool;
return c;
}
}