/* (ZYOm
**SiteFileFetch.java dx^3(#B
*/ aozk,{9-
package NetFox; vzL>ZBeZ
import java.io.*; !E%!,
import java.net.*; g!$
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public class SiteFileFetch extends Thread { tc[PJH&P
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SiteInfoBean siteInfoBean = null; //文件信息Bean #r1x0s40D
long[] nStartPos; //开始位置 ]n+:lsiV
long[] nEndPos; //结束位置 q9OIw1xQr*
FileSplitterFetch[] fileSplitterFetch; //子线程对象 (/%}a`2#o
long nFileLength; //文件长度 .D :v0Zm}m
boolean bFirst = true; //是否第一次取文件 -I -wdyDr
boolean bStop = false; //停止标志 &5B+8>
File tmpFile; //文件下载的临时信息 ?F-,4Ox{/
DataOutputStream output; //输出到文件的输出流 :!%oQQO
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) _7Z$"
public SiteFileFetch(SiteInfoBean bean) throws IOException BjA|H
{ t*COzE
siteInfoBean = bean; j1BYSfX'
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); U}UIbJD*=
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); uuq?0t2Z
if(tmpFile.exists ()) eN/Jb;W
{ hJ|z8Sy@1
bFirst = false; 8'zwyd3
read_nPos(); PgVM>_nHk
} U<*dDE~z
else (F
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{ $lO\eQGxB
nStartPos = new long[bean.getNSplitter()]; e@6}?q;
nEndPos = new long[bean.getNSplitter()]; 1Ao"DxZHy7
} f`?|A
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} mk[n3oE1
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public void run() (j2]:BVu
{ 9{+B lNZ
//获得文件长度 3 iY`kf
//分割文件 _Wgg=A"G
//实例FileSplitterFetch ^D!UF(H
//启动FileSplitterFetch线程 ](%-5G1<
//等待子线程返回 J&lQ,T!?B
try{ `LNRl'Zm
if(bFirst) <}|+2f233+
{ (Y-7B
nFileLength = getFileSize(); IuRKj8J)o
if(nFileLength == -1) !W8$-iq
{ gPDc6{/C<
System.err.println("File Length is not known!"); ETYw
} 63ht|$G
else if(nFileLength == -2) XWK A0
{ 9HWtdJ+^C=
System.err.println("File is not access!"); s$mcIMqs
} >YD?
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else e5MX5 T^
{ 1XwbsKQ}
for(int i=0;i<nStartPos.length;i++) 75gE>:f
{ =EFF2M`F
nStartPos = (long)(i*(nFileLength/nStartPos.length)); #p0vrQ;5f
} a:1-n%&F
for(int i=0;i<nEndPos.length-1;i++) eqYa`h@g^
{ `j@2[XdHu
nEndPos = nStartPos[i+1]; )fv0H&g
} U ^[<G6<9]
nEndPos[nEndPos.length-1] = nFileLength; ga VWfG
} e;!si>N
} |6$6Za]:
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//启动子线程 h8Kri}z; M
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; /qEoiL###
for(int i=0;i<nStartPos.length;i++) zaa>]~g .
{ 9tWu>keu
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Wfz&:J#
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), Beqzw0
nStartPos,nEndPos,i); ^ola5w D
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); +,f|Y6L<