/* CB\E@u,
**SiteFileFetch.java 6]1cy&SG
*/ .3M=|rE
package NetFox; CM|?;PBuv
import java.io.*; B^Fe.t y
import java.net.*; 5Ay\s:hb[u
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public class SiteFileFetch extends Thread { EPkmBru
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SiteInfoBean siteInfoBean = null; //文件信息Bean %L, mj
long[] nStartPos; //开始位置
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long[] nEndPos; //结束位置 xJlf}LEyF
FileSplitterFetch[] fileSplitterFetch; //子线程对象 /N>f#:}
long nFileLength; //文件长度 sba+J:#w
boolean bFirst = true; //是否第一次取文件 jbZ%Y0km%
boolean bStop = false; //停止标志 OTwIR<_B+
File tmpFile; //文件下载的临时信息 P+K< /i
DataOutputStream output; //输出到文件的输出流 U|ZYoc+](
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) -q'G]}
public SiteFileFetch(SiteInfoBean bean) throws IOException N/CL?Z>c
{ 0&wbGbg(W
siteInfoBean = bean; p(vmMWR!
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); \%[sv@P9s
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); dPvRbwH<
if(tmpFile.exists ()) /zV&ebN]
{ ;=r_R!d@
bFirst = false; p`N+9t&I4
read_nPos(); fXD9w1
} `-yo-59E[
else Fp=O:]
{ !79eF)
nStartPos = new long[bean.getNSplitter()]; -9)H[}.
nEndPos = new long[bean.getNSplitter()]; :Q]P=-Y8
} $DS|jnpV
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} Qze.1h
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public void run() L"[2[p
{ L/*D5k%J
//获得文件长度 =2J^
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//分割文件 7H=V|Btnc
//实例FileSplitterFetch 9:9gam
//启动FileSplitterFetch线程 3:wN^!A}ve
//等待子线程返回 :}0>IPW-V
try{ 3mP251"dIW
if(bFirst) 2J;_9
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nFileLength = getFileSize(); r{g8CIwGQ
if(nFileLength == -1) C!X"0]@FA
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System.err.println("File Length is not known!"); ;+;%s D
} P z<
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else if(nFileLength == -2) "WF@T
{ T@H<Fm_
System.err.println("File is not access!"); Te d1Ky2O
} xky +"
else 4>R)2g
{ RwyX,|
for(int i=0;i<nStartPos.length;i++) ^L?2y/
{ Lqa|9|!
nStartPos = (long)(i*(nFileLength/nStartPos.length)); <Dk6o`7^N
} to,\sc
for(int i=0;i<nEndPos.length-1;i++) 0^('hS&
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nEndPos = nStartPos[i+1]; xu<oQBt
} \0fS;Q^{j
nEndPos[nEndPos.length-1] = nFileLength; 15J t
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} vCX
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} 0]k-0#JM
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//启动子线程 jCp^CNbA
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; ;M<R
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for(int i=0;i<nStartPos.length;i++) 3sD/4 ?
{ nVyV]'-z
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), nG4}8
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ,II-:&H
nStartPos,nEndPos,i); *G&3NSM-
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 2H,n"-9+
fileSplitterFetch.start(); !-AK@`i.
} *e,GXU@
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), {ovW6#
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); i+@t_pxc
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", %LjhK,'h
nEndPos = " + nFileLength); \%/Y(YVm
// fileSplitterFetch[nPos.length-1].start(); &"6%D|Z0
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//等待子线程结束 FE'F@aS\
//int count = 0; 1| XC$0
//是否结束while循环 |SX31T9rG
boolean breakWhile = false; R LNto5?
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while(!bStop) ;%^T*?t
{ Jp 7m$D%
write_nPos(); i87+9X
Utility.sleep(500); W&=F<n`
breakWhile = true; ab8F\%y-8
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for(int i=0;i<nStartPos.length;i++) I?OnEw
{ W [B;;"ro
if(!fileSplitterFetch.bDownOver) R>B4v+b
{ `xsU'Wd^<
breakWhile = false; *pSD[E>SU
break; AQgagE^
} z8JdA%YBM
} j|owU
if(breakWhile) \O=t5yS
break; }@TtX\7(D
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//count++; P$i d?
//if(count>4) w,VUWja
// siteStop(); 1kczlTF
} d>hLnz1O
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System.err.println("文件下载结束!"); ^3lEfI<pBm
} !Ct'H1J-
catch(Exception e){e.printStackTrace ();} 94'0X
} D:#e;K
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//获得文件长度 +
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public long getFileSize() a&C}'e"
{ &O\$=&, h
int nFileLength = -1; JW9U&Bj{
try{ &Xp