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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
PacketAggregator.java | 81.2% | 87.5% | 100% | 86% |
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/**
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*
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* Copyright 2004 Hiram Chirino
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.activeio.filter;
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import java.io.IOException;
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import org.activeio.Packet;
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import org.activeio.PacketData;
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import org.activeio.packet.AppendedPacket;
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import org.activeio.packet.ByteArrayPacket;
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import org.activeio.packet.EOSPacket;
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/**
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* @version $Revision$
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*/
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abstract public class PacketAggregator { |
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private static final int HEADER_LENGTH = 4; |
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private final ByteArrayPacket headerBuffer = new ByteArrayPacket(new byte[HEADER_LENGTH]); |
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private final PacketData headerData = new PacketData(headerBuffer); |
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Packet incompleteUpPacket; |
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boolean headerLoaded;
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private int upPacketLength; |
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public void addRawPacket(Packet packet) throws IOException { |
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// Passthrough the EOS packet.
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if( packet == EOSPacket.EOS_PACKET ) {
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packetAssembled(packet); |
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return;
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} |
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if (incompleteUpPacket != null) { |
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packet = AppendedPacket.join(incompleteUpPacket, packet); |
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incompleteUpPacket = null;
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} |
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while (true) { |
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if (!headerLoaded) {
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headerLoaded = packet.remaining() >= HEADER_LENGTH; |
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if( headerLoaded ) {
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PacketData data = new PacketData(packet);
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upPacketLength = data.readInt(); |
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if( upPacketLength < 0 ) {
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throw new IOException("Up packet lenth was invalid: "+upPacketLength); |
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} |
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packet = packet.slice(); |
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} |
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if( !headerLoaded )
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break;
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} |
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if (packet.remaining() < upPacketLength )
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break;
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// Get ready to create a slice to send up.
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int origLimit = packet.limit();
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packet.limit(upPacketLength); |
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packetAssembled(packet.slice()); |
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// Get a slice of the remaining since that will dump
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// the first packets of an AppendedPacket
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packet.position(upPacketLength); |
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packet.limit(origLimit); |
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packet = packet.slice(); |
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// Need to load a header again now.
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headerLoaded = false;
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} |
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87 | 30 |
if (packet.hasRemaining()) {
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incompleteUpPacket = packet; |
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} |
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} |
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protected abstract void packetAssembled(Packet packet); |
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95 | 20 |
public Packet getHeader( Packet packet ) throws IOException { |
96 | 20 |
headerBuffer.clear(); |
97 | 20 |
headerData.writeInt(packet.remaining()); |
98 | 20 |
headerBuffer.flip(); |
99 | 20 |
return headerBuffer;
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} |
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} |
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