/* `_]Ul I_h
**SiteFileFetch.java ,Vof<,x0
*/ Im]6-#(9\|
package NetFox; @~&^1%37)
import java.io.*; gkca{BJ
import java.net.*; qagR?)N)u
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public class SiteFileFetch extends Thread { b?,=|H
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SiteInfoBean siteInfoBean = null; //文件信息Bean Ht]O:io`
long[] nStartPos; //开始位置 5v=e(Ph+
long[] nEndPos; //结束位置 @Q&k6.{4Z
FileSplitterFetch[] fileSplitterFetch; //子线程对象 H7meI9L
long nFileLength; //文件长度 a6;5mx
boolean bFirst = true; //是否第一次取文件 /xBO;'rR
boolean bStop = false; //停止标志 C<w&mFozL
File tmpFile; //文件下载的临时信息 cJM.Q_I}Y
DataOutputStream output; //输出到文件的输出流 ,e
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) l|;]"&|_]c
public SiteFileFetch(SiteInfoBean bean) throws IOException %J9+`uSl
{ .S* sGauM
siteInfoBean = bean; aB`jFp-
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); T#[#w*w/
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); R D?52\
if(tmpFile.exists ())
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bFirst = false; ,"YTG*ky
read_nPos(); JBLh4c3
} C5e;U
else %c8@
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nStartPos = new long[bean.getNSplitter()]; o*oFCR]j
nEndPos = new long[bean.getNSplitter()]; rfr]bq5
} 9w=[}<E
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public void run() vskp1 Wi(
{ upZf&4 I8
//获得文件长度 zw iS%-F
//分割文件 <|w(Sn
//实例FileSplitterFetch d"Zyc(Jk
//启动FileSplitterFetch线程 c:
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//等待子线程返回 #]Jg>
try{ dyohs_
if(bFirst) %8d]JQ
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nFileLength = getFileSize(); }XqC'z
if(nFileLength == -1) dQO5
{ U\-R'Z>M
System.err.println("File Length is not known!"); rZ2cC#
} aP"!}*
else if(nFileLength == -2) ${gO=Z
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System.err.println("File is not access!"); $ ?|;w,%I
} =hY/Yr%P
else U*go}dt"5
{ S6fbwZZMG
for(int i=0;i<nStartPos.length;i++) T8yMaC
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); fVdu9 l
} eo.B0NZsF
for(int i=0;i<nEndPos.length-1;i++) ,zxv>8Nt
{ \Pe+]4R-Xo
nEndPos = nStartPos[i+1]; P4+PY 8
} b/
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nEndPos[nEndPos.length-1] = nFileLength; rj4R/{h
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//启动子线程 }<*KM)%
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; tf[)| /M
for(int i=0;i<nStartPos.length;i++) 3Vak
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{ i4XiwjCHN
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), {faIyKtW
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), M+:9U&>
nStartPos,nEndPos,i); )ybF@emc
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ~R50-O
fileSplitterFetch.start(); z\woTL6D]
} {Byh:-e<
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 6RDy2JAOP
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); yT~x7,
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", BfD&