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**SiteFileFetch.java T[,/5J
*/ FP0G]=ME
package NetFox; {r>.G7P6
import java.io.*; {%VV\qaC
import java.net.*; pl5P2&k
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public class SiteFileFetch extends Thread { :(a]V"(&Eq
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SiteInfoBean siteInfoBean = null; //文件信息Bean e'*`.^
long[] nStartPos; //开始位置 yz-,)GB6
long[] nEndPos; //结束位置 b
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FileSplitterFetch[] fileSplitterFetch; //子线程对象 4Sm]>%F':
long nFileLength; //文件长度 M
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boolean bFirst = true; //是否第一次取文件 2$14q$eb
boolean bStop = false; //停止标志 DUL4noq{
File tmpFile; //文件下载的临时信息 UK$ms~H
DataOutputStream output; //输出到文件的输出流 Q\GDrdA
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) @*0cMO;SpG
public SiteFileFetch(SiteInfoBean bean) throws IOException _bzqd"
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{ HJ2*y|u
siteInfoBean = bean; 21ppSN>
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); }w/;){gu
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 6\u!E~zy
if(tmpFile.exists ()) h)6GaJ=
{ *\wp?s>-t
bFirst = false; ZxG}ViS4I
read_nPos(); '8fk+>M
} SG?Nsp^%`B
else 7}GK%H-u
{ LAP6U.m'd
nStartPos = new long[bean.getNSplitter()]; 6ns! ~g@
nEndPos = new long[bean.getNSplitter()]; kM'"4[,nz
} "F3]X)}
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public void run() nLwiCfe
{ Cv>o.Bp|
//获得文件长度 iweD
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//分割文件 .fi/I
//实例FileSplitterFetch CvPioi
//启动FileSplitterFetch线程 ( 7ws{)
//等待子线程返回 Tzt ,/e
try{ [L6w1b,
if(bFirst) ^9_UUzf\
{ /Y&02L%\3s
nFileLength = getFileSize(); *d(SI<j
if(nFileLength == -1) @v}B6j b;
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System.err.println("File Length is not known!"); $s4Wkq
} \eGKkSy
else if(nFileLength == -2) @)>D))+
{ P_gYz!
System.err.println("File is not access!"); 4"@GNk~e
} :^'O}2NP
else b$Hz3TJ(
{ xq%{}
for(int i=0;i<nStartPos.length;i++) >#}2J[2HQ
{ dl5=q\1=
nStartPos = (long)(i*(nFileLength/nStartPos.length)); KQld YA|m
} R8-^RvG
for(int i=0;i<nEndPos.length-1;i++) R//$r%a
{ 2oZ9laJO
nEndPos = nStartPos[i+1]; X 6lH|R
} ;' nL:\
nEndPos[nEndPos.length-1] = nFileLength; >sD4R}\})
} w-b' LP
} 2 $ !D* <
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//启动子线程 "BKeot[""p
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; <&pKc6+{
for(int i=0;i<nStartPos.length;i++) TwvAj#j
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Sd))vS^g
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), w?mEuXc
nStartPos,nEndPos,i); K'1~^)*
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); _Mc>W0'5@
fileSplitterFetch.start(); "BVdPS DBk
} ]h!`IX
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), TFR(
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 9B dt (}0A
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", E2AW7f(/
nEndPos = " + nFileLength); $P:
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// fileSplitterFetch[nPos.length-1].start(); ukuo:P<a
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//等待子线程结束 `@`1pOb
//int count = 0; 2 ?|gnbE:
//是否结束while循环 0_ yP\m
boolean breakWhile = false; ~%#mK:+
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while(!bStop) oc{EuW{Ag
{ K3mAXC,d
write_nPos(); d"~(T:=r
Utility.sleep(500); {13!vS%5
breakWhile = true; ekQrW%\3
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for(int i=0;i<nStartPos.length;i++) -DO&