资源简介
本资源包含一次项目研究的全部资料。详细分析了PeerSim的用法,并对当前P2P仿真状况进行了研究,最后,作为示例,作者设计了一个简单的P2P信任协议并移植到了PeerSim中,以使人们更加了解PeerSim的运行流程。资源中包含的代码都有详细的注释。本资源稍加修改就可作为一次本科毕业设计直接上交
代码片段和文件信息
/*
* Copyright (c) 2003-2005 The BISON Project
*
* 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.
*
*/
package example.aggregation;
import peersim.core.*;
import peersim.config.FastConfig;
import peersim.vector.SingleValueHolder;
import peersim.cdsim.CDProtocol;
/**
* This class provides an implementation for the averaging function in the
* aggregation framework. When a pair of nodes interact their values are
* averaged. The class subclasses {@link SingleValueHolder} in
* order to provide a consistent access to the averaging variable value.
*
* Note that this class does not override the clone method because it does
* not have any state other than what is inheritred from
* {@link SingleValueHolder}.
*
* @author Alberto Montresor
* @version $Revision: 1.10 $
*/
public class AverageFunction extends SingleValueHolder implements CDProtocol {
/**
* Creates a new {@link example.aggregation.AverageFunction} protocol
* instance.
*
* @param prefix
* the component prefix declared in the configuration file.
*/
public AverageFunction(String prefix) {
super(prefix);
}
/**
* Using an underlying {@link linkable} protocol choses a neighbor and
* performs a variance reduction step.
*
* @param node
* the node on which this component is run.
* @param protocolID
* the id of this protocol in the protocol array.
*/
public void nextCycle(Node node int protocolID) {
int linkableID = FastConfig.getlinkable(protocolID);
linkable linkable = (linkable) node.getProtocol(linkableID);
if (linkable.degree() > 0) {
Node peer = linkable.getNeighbor(CommonState.r.nextInt(linkable
.degree()));
// Failure handling
if (!peer.isUp())
return;
AverageFunction neighbor = (AverageFunction) peer
.getProtocol(protocolID);
double mean = (this.value + neighbor.value) / 2;
this.value = mean;
neighbor.value = mean;
}
}
}
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 10387008 2010-08-19 22:15 P2P仿真\P2P仿真.chm
文件 547840 2010-09-10 10:26 P2P仿真\P2P仿真实习报告 .doc
文件 741376 2010-08-20 11:02 P2P仿真\P2P仿真实习报告.ppt
..A.SH. 5120 2010-08-06 11:31 P2P仿真\P2P仿真调研报告\Thumbs.db
..A..H. 162 2010-08-16 09:59 P2P仿真\P2P仿真调研报告\~$-P2P仿真调研报告.doc
文件 581632 2010-09-10 10:29 P2P仿真\P2P仿真调研报告\P2P仿真调研报告.doc
文件 968192 2010-09-10 10:31 P2P仿真\P2P仿真调研报告\P2P仿真调研报告.ppt
文件 389 2010-08-05 17:18 P2P仿真\代码\TrustModelSimulation\.classpath
文件 396 2008-03-13 21:52 P2P仿真\代码\TrustModelSimulation\.project
文件 136404 2007-12-24 06:47 P2P仿真\代码\TrustModelSimulation\djep-1.0.0.jar
文件 75818 2007-12-24 06:47 P2P仿真\代码\TrustModelSimulation\jep-2.3.0.jar
文件 17483 2005-09-01 20:58 P2P仿真\代码\TrustModelSimulation\slacer.jar
文件 41811 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\TrustMonitor.dat
文件 13 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\BadPeerNumCount.dat
文件 43690 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\MaliceAttackCount.dat
文件 4790 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\BadPeerTrustValue.dat
文件 37021 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\GoodPeerTrustValue.dat
文件 685 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\AverageTrustValuePerCycle.dat
文件 685 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\GoodPeerAverageTrustValuePerCycle.dat
文件 658 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\BadPeerAverageTrustValuePerCycle.dat
文件 80218 2010-08-19 20:01 P2P仿真\代码\TrustModelSimulation\data\PeerSuccessfulDownloadPercentage.dat
文件 432 2010-08-19 19:52 P2P仿真\代码\TrustModelSimulation\config\slacer-conf1.cfg
文件 2743 2008-03-13 21:52 P2P仿真\代码\TrustModelSimulation\example\aggregation\AverageFunction.java
文件 3851 2008-03-13 21:52 P2P仿真\代码\TrustModelSimulation\example\aggregation\AverageObserver.java
文件 3155 2008-03-13 21:52 P2P仿真\代码\TrustModelSimulation\example\aggregation\PeakDistributionInitializer.java
文件 1512 2010-08-19 19:29 P2P仿真\代码\TrustModelSimulation\example\aggregation\PeakDistributionInitializer.class
文件 1998 2010-08-19 19:29 P2P仿真\代码\TrustModelSimulation\example\aggregation\AverageObserver.class
文件 1324 2010-08-19 19:29 P2P仿真\代码\TrustModelSimulation\example\aggregation\AverageFunction.class
文件 3309 2008-03-13 21:52 P2P仿真\代码\TrustModelSimulation\example\edaggregation\AverageED.java
文件 453 2010-08-19 19:29 P2P仿真\代码\TrustModelSimulation\example\edaggregation\AverageMessage.class
............此处省略304个文件信息
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- 下一篇:itext5.5.11
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