/* #]nH$Kq
**SiteFileFetch.java B+:'Ld](
*/ jYAD9v%
package NetFox; KiXXlaOs
import java.io.*; 'J+dTs;0
import java.net.*; B j!{JcM-^
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public class SiteFileFetch extends Thread { mjdZ^
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SiteInfoBean siteInfoBean = null; //文件信息Bean Q v/}WnBk
long[] nStartPos; //开始位置 YVy+1q[
long[] nEndPos; //结束位置 C3|(XChqC
FileSplitterFetch[] fileSplitterFetch; //子线程对象 ;>?NH6B,
long nFileLength; //文件长度 _tE`W96J
boolean bFirst = true; //是否第一次取文件 PprCz"
boolean bStop = false; //停止标志 <"I#lib
File tmpFile; //文件下载的临时信息 OhT?W[4
DataOutputStream output; //输出到文件的输出流 n[# !Q`D
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) STMc@MeZU_
public SiteFileFetch(SiteInfoBean bean) throws IOException ?nOul}y/
{ --SlxV/x
siteInfoBean = bean; n6T@A;_g
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); iU^KmM I
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 6onFf* m!x
if(tmpFile.exists ()) b/N+X}VMN
{ >;Er[Rywr
bFirst = false; mSSDV0Pfn
read_nPos(); `TvpKS5.Y
} ^6=y4t=%F
else Y*-#yG9
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nStartPos = new long[bean.getNSplitter()]; 9Xw(|22
nEndPos = new long[bean.getNSplitter()];
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public void run() octBt`\Of
{ Ba$&4?8
//获得文件长度 HIUB:
//分割文件 4(5NHsvp
//实例FileSplitterFetch W0GDn
//启动FileSplitterFetch线程 qx3@]9
//等待子线程返回 ?Rlo<f:Mf
try{ @1_M's;
if(bFirst) <-xI!o"}
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nFileLength = getFileSize(); &S/@i|_
if(nFileLength == -1) sem:"
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System.err.println("File Length is not known!"); nH*JR
} .(T*mk*>
else if(nFileLength == -2) p^u;]~JO
{ 1"pvrX}
System.err.println("File is not access!"); 3o=R_%r
} .W[ 9G\
else hV,)u3
{ %fY\vd2
for(int i=0;i<nStartPos.length;i++) Y.9s-g
{ 7`113`1
nStartPos = (long)(i*(nFileLength/nStartPos.length)); WP/?(%#Y
} 8KH|:>s=
for(int i=0;i<nEndPos.length-1;i++) y\M]\^[7
{ #bN'N@|
nEndPos = nStartPos[i+1];
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} @LQe[`
nEndPos[nEndPos.length-1] = nFileLength; !zc?o?~z
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} C"`,?K(U
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//启动子线程 b^WTX
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; UVND1XV^f
for(int i=0;i<nStartPos.length;i++) xaQO=[
{ y7a84)j3
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 8|FHr,
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ''Lf6S`4X~
nStartPos,nEndPos,i); ?)x"+[2
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); K"lZwU\:On
fileSplitterFetch.start(); v#yeiE4
} pP JhF8Dt
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 9 b?Nlk8d
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ^*!Tq&Dst|
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", <#c/uIN
nEndPos = " + nFileLength); 2`2S94'
// fileSplitterFetch[nPos.length-1].start(); ;3~+M:{2
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//等待子线程结束 "n,?)
//int count = 0; y2nwDw(xF
//是否结束while循环 Pe-1o#7~W
boolean breakWhile = false; >M~wFs$~
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while(!bStop) &x