+++ /dev/null
-/*
- * Copyright (c) 2007-2008 Fabrizio Frioli, Michele Pedrolli
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * --
- *
- * Please send your questions/suggestions to:
- * {fabrizio.frioli, michele.pedrolli} at studenti dot unitn dot it
- *
- */
-
-package example.bittorrent;
-
-import peersim.core.*;
-
-/**
- * This class is a {@link SimpleMsg} and represents the <tt>bitfield</tt>
- * message.
- */
-public class BitfieldMsg extends SimpleMsg{
- /**
- * The status of the file to transmit to neighbors nodes
- */
- int[] array;
-
- /**
- * Defines the type of the Bitfield message. If <tt>isRequest</tt> is true, then
- * the message is a request of subscription; otherwise the message is a response.
- */
- boolean isRequest;
-
- /**
- * <p>The ACK value used to implement <i>ack</i> and <i>nack</i> messages.</p>
- * <p>It has value <tt>true</tt> if the message is a reponse and the sender has inserted
- * the receiver in its own cache of neighbors.<br/>
- * If for some reason (for instance the cache had already 80 peer inside at the moment of the
- * request) it was not possible to insert the peer, the value is <tt>false</tt>.<br/>
- * It has value <tt>false</tt> also if the message is a request and is sent when occours
- * an unespected message.
- * </p>
- * @see "The documentation to understand the 4 different types of Bitfield messages"
- */
- boolean ack;
-
- /**
- * The basic constructor of the Bitfield message.
- * @param type The type of the message, according to {@link SimpleMsg}
- * @param isRequest Defines if the message is a request or not
- * @param ack Defines if the message type is an <i>ack</i> or a <i>nack</i>
- * @param sender The sender node
- * @param source The array containing the status of the file
- * @param size The size of the array
- */
- public BitfieldMsg(int type, boolean isRequest, boolean ack, Node sender, int source[], int size){
- super.type = type;
- super.sender = sender;
- this.isRequest = isRequest;
- this.ack = ack;
- this.array = new int[size];
- for(int i=0; i<size;i++){ // it sends a copy
- if(source[i]==16)
- this.array[i] = 1;
- else
- this.array[i] = 0;
- }
- }
-
- /**
- * Gets the array containing the status of the file.
- * @return The status of the file
- */
- public int[] getArray(){
- return this.array;
- }
-}
\ No newline at end of file
