src/main/org/apache/tools/ant/taskdefs/optional/sitraka/bytecode/InterfaceList.java

/*
 * 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 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.
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 * 4. The names "The Jakarta Project", "Ant", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
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 * 5. Products derived from this software may not be called "Apache"
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 * 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
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 */
package org.apache.tools.ant.taskdefs.optional.sitraka.bytecode;

import java.io.*;

import org.apache.tools.ant.taskdefs.optional.depend.constantpool.*;

/**
 * list of interfaces implemented in a class.
 *
 * @author <a href="sbailliez@imediation.com">Stephane Bailliez</a>
 */
public class InterfaceList {
	protected ConstantPool constantPool;
	protected int[] interfaces;
	
	public InterfaceList(ConstantPool pool){
		constantPool = pool;
	}
	public void read(DataInputStream dis) throws IOException {
		int count = dis.readShort();
		interfaces = new int[count];
		for (int i = 0; i < count; i++){
			interfaces[i] = dis.readShort();
		}
	}
	public int length(){
		return interfaces.length;
	}
	public String getInterface(int i){
		int index = interfaces[i];
		ClassCPInfo cp = (ClassCPInfo)constantPool.getEntry(index);
		return cp.getClassName().replace('/','.');
	}
	public String[] getInterfaces(){
		String[] classes = new String[interfaces.length];
		for (int i = 0; i < classes.length; i++){
			classes[i] = getInterface(i);
		}
		return classes;
	}
	public String toString(){
		StringBuffer sb = new StringBuffer("Interfaces: ");
		String[] names = getInterfaces();
		for (int i = 0; i < names.length; i++){
			sb.append(names[i]);
			if (i != names.length - 1){
				sb.append(", ");
			}
		}
		return sb.toString();
	}
}