/*
 *    Fernflower - The Analytical Java Decompiler
 *    http://www.reversed-java.com
 *
 *    (C) 2008 - 2010, Stiver
 *
 *    This software is NEITHER public domain NOR free software 
 *    as per GNU License. See license.txt for more details.
 *
 *    This software is distributed WITHOUT ANY WARRANTY; without 
 *    even the implied warranty of MERCHANTABILITY or FITNESS FOR 
 *    A PARTICULAR PURPOSE. 
 */

package de.fernflower.struct.attr;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import de.fernflower.struct.consts.ConstantPool;

public class StructExceptionsAttribute extends StructGeneralAttribute {

	private List<Integer> throwsExceptions = new ArrayList<Integer>(); 
	
	public void initContent(ConstantPool pool) {
		
		name = ATTRIBUTE_EXCEPTIONS;

		int length = 2+(((info[0] & 0xFF)<<8) | (info[1] & 0xFF))*2;
		for(int i=2;i<length;i+=2) {
			int index = ((info[i] & 0xFF)<<8) | (info[i+1] & 0xFF);
			throwsExceptions.add(index);
		}
		
	}

	public void writeToStream(DataOutputStream out) throws IOException {
		
		out.writeShort(attribute_name_index);
		
		ByteArrayOutputStream codeout = new ByteArrayOutputStream();
		DataOutputStream dataout = new DataOutputStream(codeout);
		
		int len = throwsExceptions.size();
		dataout.writeShort(len);

		if(len>0) {
			info = new byte[len*2];
			for(int i=0,j=0;i<len;i++,j+=2) {
				int index = ((Integer)throwsExceptions.get(i)).intValue(); 
				info[j] = (byte)(index >> 8);
				info[j+1] = (byte)(index & 0xFF);
			}
			dataout.write(info);
		}
		
		out.writeInt(codeout.size());
		out.write(codeout.toByteArray());
	}
	
	public String getExcClassname(int index, ConstantPool pool) {
		return pool.getPrimitiveConstant(((Integer)throwsExceptions.get(index)).intValue()).getString(); 
	}

	public List<Integer> getThrowsExceptions() {
		return throwsExceptions;
	}

	public void setThrowsExceptions(List<Integer> throwsExceptions) {
		this.throwsExceptions = throwsExceptions;
	}
	
	
}
