package org.apache.bcel.classfile;


import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.bcel.Constants;

	/**
	 * 
	 * @author dorina
	 *
	 */

public class ExternalFieldsAttribute  extends Attribute{


		/**
		 * 
		 */
		private static final long serialVersionUID = -3137502604828533407L;
		byte []externalFields;
		
		public ExternalFieldsAttribute(int name_index, int length, byte[] externalFields, ConstantPool cp) {
			super(Constants.ATTR_EXTERNAL_FIELDS, name_index,length, cp);
			this.externalFields = externalFields;
		}

		public ExternalFieldsAttribute(int name_index, int length, DataInputStream str, ConstantPool cp)
		throws IOException {
			this(name_index, length, (byte [])null, cp);

			if( length > 0) {
				externalFields = new byte[length];
	        
				for(int i = 0; i < length; i++) {
					externalFields[i] = str.readByte();
				}
			}
		}
		
		/* (non-Javadoc)
		 * @see org.apache.bcel.classfile.Attribute#accept(org.apache.bcel.classfile.Visitor)
		 */
		public void accept(Visitor v) {
			// TODO Auto-generated method stub

		}

		/* (non-Javadoc)
		 * @see org.apache.bcel.classfile.Attribute#copy(org.apache.bcel.classfile.ConstantPool)
		 */
		public Attribute copy(ConstantPool constant_pool) {
			ExternalFieldsAttribute copy = (ExternalFieldsAttribute)clone();
			System.arraycopy(externalFields,0,copy.externalFields,0,externalFields.length);
			return copy;
		}

		public final void dump(DataOutputStream file) throws IOException {
			super.dump(file);
			for(int i = 0; i < externalFields.length; i++) {
					file.writeByte(externalFields[i]);
			}
		}

	}