/* 42Z:J 0
**SiteFileFetch.java jBLTEb
*/ 22l'kvo4"
package NetFox; !dqC6a
import java.io.*; Kr}RFJ"d
import java.net.*; BIx*t9wA
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public class SiteFileFetch extends Thread { m eF7[>!U
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SiteInfoBean siteInfoBean = null; //文件信息Bean k6tCfq;
long[] nStartPos; //开始位置 =M\yh,s!
long[] nEndPos; //结束位置 bxXpw&
FileSplitterFetch[] fileSplitterFetch; //子线程对象 GkAd"<B
long nFileLength; //文件长度 0Wr<l%M)+
boolean bFirst = true; //是否第一次取文件 14,)JZN
boolean bStop = false; //停止标志 UTA|Ps$
File tmpFile; //文件下载的临时信息 k[Em~>m
DataOutputStream output; //输出到文件的输出流 uyj!$}4
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) &h5Vhzq(<
public SiteFileFetch(SiteInfoBean bean) throws IOException 6{2y$'m8
{ x ytrd.
siteInfoBean = bean; FnGKt\
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath()));
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 1iT_mtXK$
if(tmpFile.exists ()) TegdB|y7O
{ j*%#~UFw
bFirst = false; R`j"iC2
read_nPos(); Pf;OYWST
} nW=6nCyvo
else x;mw?B[
{ 9{pT)(Wnb
nStartPos = new long[bean.getNSplitter()]; z
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nEndPos = new long[bean.getNSplitter()]; YD4I2'E
} $Itmm/M
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} }e7Rpgu
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public void run() Y>$5j}K
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//获得文件长度 P]+B}))
//分割文件 `,O7S9]R+
//实例FileSplitterFetch {z o GwB
//启动FileSplitterFetch线程 %Wtf24'o;v
//等待子线程返回 =ejcP&-V/
try{ F8%^Ed~@
if(bFirst) xF_u:}7`
{ IOHWb&N6
nFileLength = getFileSize(); O"\4[HE^
if(nFileLength == -1) ?q!4 REM
{ \`k=9{R.
System.err.println("File Length is not known!"); qnP4wRpr
} $QiMA,
else if(nFileLength == -2) p{E(RsA
{ eF3NyL(A
System.err.println("File is not access!"); ?V`-z#y7
} 3W'fEh5
else ;MfqI/B{
{ Y{dSQ|xz^
for(int i=0;i<nStartPos.length;i++) uQdeKp4(
{ f1NHW|_j
nStartPos = (long)(i*(nFileLength/nStartPos.length)); e1[ReZW
} -Mo4`bN
for(int i=0;i<nEndPos.length-1;i++) |q4=*X q
{ dv.
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nEndPos = nStartPos[i+1]; TOiLv.Dor
} qO@vXuul,
nEndPos[nEndPos.length-1] = nFileLength; u6C_*i{2
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} fRNj *bIV
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//启动子线程 ivo3pibk%
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 2I:P}!
for(int i=0;i<nStartPos.length;i++) sI\NX$M
{ 6jpzyf=~
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), +[}y`
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), @<K<"`~H
nStartPos,nEndPos,i);
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Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); aG1Fj[,
fileSplitterFetch.start(); q}i#XQU
} T4x%3-4;
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), .XgY&5Qk
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); wPU5L*/*i
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Y6wr}U
nEndPos = " + nFileLength); $mxG-'x%K
// fileSplitterFetch[nPos.length-1].start(); :{<|,3oNdR
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//等待子线程结束 LR&MhG7
//int count = 0; 2IJniS=[>
//是否结束while循环 Xau%v5r
boolean breakWhile = false; o?]Q&,tO
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while(!bStop) 9>{ml&$
{ wQW`Er3w
write_nPos(); .i\FK@2
Utility.sleep(500); ;)ay uS sQ
breakWhile = true; H[w';u[%
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for(int i=0;i<nStartPos.length;i++) '&Ur(axs
{ (bm>
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if(!fileSplitterFetch.bDownOver) Dp['U
{ /'oo;e
breakWhile = false; 9ad`q+kY
break; xkf2;
} f)vnm*&-
} xS,F
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if(breakWhile) B\D)21Ik}%
break; XK~HfA?
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//count++; /%&5Iq\:vA
//if(count>4) G{?`4=K
// siteStop(); 0%xb):Ctw
} ")ys!V9
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System.err.println("文件下载结束!"); bV:<%l]
} Jd `Qa+
catch(Exception e){e.printStackTrace ();} RH,x);J|
} -[!t=qi
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//获得文件长度 &y0Gdzf