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**SiteFileFetch.java SbXV'&M2AT
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package NetFox; P{+,?X\
import java.io.*; WJTc/
import java.net.*; BT^HlW<
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public class SiteFileFetch extends Thread { a3J'
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SiteInfoBean siteInfoBean = null; //文件信息Bean jp880}
long[] nStartPos; //开始位置 Rrw6\iO
long[] nEndPos; //结束位置 8DkZ@}
FileSplitterFetch[] fileSplitterFetch; //子线程对象 o3cE.YUF
long nFileLength; //文件长度 PS$g*x
boolean bFirst = true; //是否第一次取文件 0iI|eE o
boolean bStop = false; //停止标志 M3!4,_!~
File tmpFile; //文件下载的临时信息 'l $ViNq;
DataOutputStream output; //输出到文件的输出流 '37 <+N
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) UK5u"@T
public SiteFileFetch(SiteInfoBean bean) throws IOException aNUMF
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siteInfoBean = bean; }6"l`$=Ev
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); FBeo@
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); N nq r{ub
if(tmpFile.exists ()) _%KRZx}
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bFirst = false; p]rV\,Yss
read_nPos(); {sW>J0
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else 6
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nStartPos = new long[bean.getNSplitter()]; }CM#jN?(
nEndPos = new long[bean.getNSplitter()]; BVG.ZZR})
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public void run() >Z>sR0s7
{ xbzO'C
//获得文件长度 w ufQyT`
//分割文件 S;j"@'gz9
//实例FileSplitterFetch 49=L9:
//启动FileSplitterFetch线程 Nz>xilU'
//等待子线程返回 vLpIVNA]]Y
try{ |]eWO#vs
if(bFirst) >{[
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nFileLength = getFileSize(); l
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if(nFileLength == -1) qNWSDZQ
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System.err.println("File Length is not known!"); S5\KI+;PW
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else if(nFileLength == -2) {g 4`>^;
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System.err.println("File is not access!"); <07]w$m/
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else ]fSpG\yU
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for(int i=0;i<nStartPos.length;i++) |3BxNFe`%
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); )JhB!P(
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for(int i=0;i<nEndPos.length-1;i++) y1B'_s
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nEndPos = nStartPos[i+1]; Z|xgZG{
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nEndPos[nEndPos.length-1] = nFileLength; ]IH1_?HgP7
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} xy4P_
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//启动子线程 [8&+4<
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Y*sw;2Z;a
for(int i=0;i<nStartPos.length;i++) u7
{ :Sn4Pg
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), OVGB7CB]S
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), .:O($9^Ho
nStartPos,nEndPos,i); :r7!HG_
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); SPm2I(at7
fileSplitterFetch.start(); <j1r6.E)
} "JE->iD
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), %~[@5<p
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); pJIJ"o'>.9
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", o%*C7bU
nEndPos = " + nFileLength); 7CwWf
// fileSplitterFetch[nPos.length-1].start(); S
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//等待子线程结束 ^91Ae!)d
//int count = 0; na@Go@q
//是否结束while循环 DGg1TUE
boolean breakWhile = false; `6(Zc"/
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while(!bStop) ZC`VuCg2O
{ iNilk!d6Q3
write_nPos(); `dhBLAt
Utility.sleep(500); hV&