forked from I2P_Developers/i2p.i2p
123 lines
2.9 KiB
Java
123 lines
2.9 KiB
Java
/* Request - Holds all information needed for a (partial) piece request.
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Copyright (C) 2003 Mark J. Wielaard
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This file is part of Snark.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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package org.klomp.snark;
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import java.io.DataInputStream;
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import java.io.IOException;
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/**
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* Holds all information needed for a partial piece request.
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* This class should be used only by PeerState, PeerConnectionIn, and PeerConnectionOut.
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*/
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class Request
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{
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private final PartialPiece piece;
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final int off;
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final int len;
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long sendTime;
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/**
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* Creates a new Request.
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*
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* @param piece Piece number requested.
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* @param off the offset in the array.
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* @param len the number of bytes requested.
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*/
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Request(PartialPiece piece, int off, int len)
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{
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this.piece = piece;
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this.off = off;
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this.len = len;
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// Sanity check
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if (off < 0 || len <= 0 || off + len > piece.getLength())
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throw new IndexOutOfBoundsException("Illegal Request " + toString());
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}
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/**
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* Dummy Request for PeerState.returnPartialPieces().
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* len will be zero.
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*
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* @param piece Piece number requested.
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* @param off the offset in the array.
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* @since 0.9.36
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*/
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Request(PartialPiece piece, int off)
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{
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this.piece = piece;
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this.off = off;
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this.len = 0;
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// Sanity check
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if (off < 0 || off > piece.getLength())
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throw new IndexOutOfBoundsException("Illegal Request " + toString());
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}
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/**
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* @since 0.9.1
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*/
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public void read(DataInputStream din) throws IOException {
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piece.read(din, off, len);
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}
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/**
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* The piece number this Request is for
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*
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* @since 0.9.1
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*/
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public int getPiece() {
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return piece.getPiece();
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}
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/**
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* The PartialPiece this Request is for
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*
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* @since 0.9.1
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*/
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public PartialPiece getPartialPiece() {
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return piece;
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}
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@Override
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public int hashCode()
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{
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return piece.getPiece() ^ off ^ len;
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}
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@Override
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public boolean equals(Object o)
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{
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if (o instanceof Request)
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{
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Request req = (Request)o;
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return req.piece.equals(piece) && req.off == off && req.len == len;
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}
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return false;
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}
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@Override
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public String toString()
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{
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return "(" + piece.getPiece() + "," + off + "," + len + ")";
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}
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}
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