/* l=ZhHON
**SiteFileFetch.java tm(.a?p
*/ A -G?@U
package NetFox; >v`lsCGb
import java.io.*; t+5JIQY>
import java.net.*; RJ1Q.o
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public class SiteFileFetch extends Thread { o@r+Y
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SiteInfoBean siteInfoBean = null; //文件信息Bean g&H6~ +\
long[] nStartPos; //开始位置 `6b!W0$
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long[] nEndPos; //结束位置 }r6SV%]:
FileSplitterFetch[] fileSplitterFetch; //子线程对象 G_g~-[O
long nFileLength; //文件长度 J
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boolean bFirst = true; //是否第一次取文件 #n7uw
boolean bStop = false; //停止标志 =)(o(bfSKr
File tmpFile; //文件下载的临时信息 "8aw=3A
DataOutputStream output; //输出到文件的输出流 iNgHx[*?
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) M&
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public SiteFileFetch(SiteInfoBean bean) throws IOException cTFyF)
{ rE-Xv.
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siteInfoBean = bean; CEE`nn
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ;Id%{1
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 6)kF!/J
if(tmpFile.exists ()) impzqQlZ,
{ c.Pyt
bFirst = false; it!8+hvq9*
read_nPos(); 16[>af0<g
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else ig]*Z
{ `AeId/A4n
nStartPos = new long[bean.getNSplitter()]; `(<XdlOj
nEndPos = new long[bean.getNSplitter()]; u<./ddC
} 9. Q;J#;1
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public void run() J_OIU#-B
{ el39HB$
//获得文件长度 agN`)
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//分割文件 SY_T\
}
//实例FileSplitterFetch 5 @bLDP
//启动FileSplitterFetch线程 s(J,TS#I]
//等待子线程返回
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try{ ' D+h_*H
if(bFirst) d>eVR
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nFileLength = getFileSize(); f*7/O |Gp
if(nFileLength == -1) F_U3+J >
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System.err.println("File Length is not known!"); gR"'|c
} bWo-(
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else if(nFileLength == -2) 2c@R!*
{ ~sshhuF
System.err.println("File is not access!"); /cUcfe#X
} (X@JlAfB
else 0:R}
{ 0F6^[osqtl
for(int i=0;i<nStartPos.length;i++) h #Od tc1)
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ?N<* ATCL
} 6]rIYc[,
for(int i=0;i<nEndPos.length-1;i++) MbC7`Sp&i
{ #.UooFk+Y
nEndPos = nStartPos[i+1]; Pfu2=2Ra
} }x`W+r
nEndPos[nEndPos.length-1] = nFileLength; K?,eIZ{.S
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//启动子线程 \,i9 m9;y
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; aG}ju;
for(int i=0;i<nStartPos.length;i++) : I28Zi*
{ m+||t
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), >xws
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), gEbe6!; q3
nStartPos,nEndPos,i); a H'iW)
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); }(z[
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fileSplitterFetch.start(); 6uW?xB9
} ,J"6(nk
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ;ajCnSmR
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1);
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", j1%o+#df
nEndPos = " + nFileLength); ;BUJ5
// fileSplitterFetch[nPos.length-1].start(); 4=td}%
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//等待子线程结束 fi^I1*S
//int count = 0; b[<