/* %\PnsnJ9Q
**SiteFileFetch.java c7T9kV8hS
*/ x'*,~u
package NetFox; eA9U|&o
import java.io.*; <Ur(< WTV
import java.net.*; E< nXkqD
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public class SiteFileFetch extends Thread { %||}WT-wv
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SiteInfoBean siteInfoBean = null; //文件信息Bean :Z(?Ct&8
long[] nStartPos; //开始位置
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long[] nEndPos; //结束位置 r*]0PQ{?
FileSplitterFetch[] fileSplitterFetch; //子线程对象 86O"w*9
long nFileLength; //文件长度 s mub> V
boolean bFirst = true; //是否第一次取文件 ;;'b;,/
boolean bStop = false; //停止标志 f%9EZ+OP
File tmpFile; //文件下载的临时信息 8>a/x ,
DataOutputStream output; //输出到文件的输出流 OD<0,r0f,
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) /9dV!u!;
public SiteFileFetch(SiteInfoBean bean) throws IOException I7b(fc-r
{ ZxkX\gl91
siteInfoBean = bean; ,t5X'sY L
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); *9)7.}uY
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); >kOc a
if(tmpFile.exists ()) k7P~*ll$
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bFirst = false; l=*^FK]L`
read_nPos(); |sz`w^#
} Ib.`2@o&
else 'JY*K:-
{
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nStartPos = new long[bean.getNSplitter()]; w]
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nEndPos = new long[bean.getNSplitter()]; f"Yj'`6
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} c/
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public void run() U~Aw=h5SD
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//获得文件长度 ,
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//分割文件 &3v{~Xg)
//实例FileSplitterFetch L^rtypkJ
//启动FileSplitterFetch线程 {LTb-CB
//等待子线程返回 Qfo'w%px
try{ k9UmTvX
if(bFirst) pWH8ex+
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nFileLength = getFileSize(); E
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if(nFileLength == -1) w=\Lw+X
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System.err.println("File Length is not known!"); :/ns/~5xa:
} OO_{o
else if(nFileLength == -2) 3P Twpq1
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System.err.println("File is not access!"); zNRoFz.
} lqAU5K{wQ
else K1uN(T.Ju
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for(int i=0;i<nStartPos.length;i++) ==(9P`\
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); uxk&5RY
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for(int i=0;i<nEndPos.length-1;i++) _dppUUm
{ D
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nEndPos = nStartPos[i+1]; L5%~H?K(
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nEndPos[nEndPos.length-1] = nFileLength; M]!\X6<_
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} ;+K:^*oJ
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//启动子线程 DU$]e1
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; &w:"e'FG`
for(int i=0;i<nStartPos.length;i++) 0:Js{$ZL4
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ,0[8/)$M
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), xr!FDfM.K
nStartPos,nEndPos,i); is{I5IR\/
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 1JgnuBX"
fileSplitterFetch.start(); mB;W9[
} <oV
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// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), i:OD)l
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); lT$Vv=M
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", tr7FV1p
nEndPos = " + nFileLength); z_!P0`
// fileSplitterFetch[nPos.length-1].start(); hd9fD[5
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//等待子线程结束 TJ7on.;
//int count = 0; lE08UEk1i
//是否结束while循环 }txHuq1Q.
boolean breakWhile = false; K"eR6_k
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while(!bStop) 2i',
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