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**SiteFileFetch.java w7"&\8a
*/ ~X2
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package NetFox; ov%.+5 P
import java.io.*; Y. 1dk
import java.net.*; ^^+vt8|
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public class SiteFileFetch extends Thread { GGF;4
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SiteInfoBean siteInfoBean = null; //文件信息Bean Ps=<@,dks
long[] nStartPos; //开始位置 0{Bhr12V
long[] nEndPos; //结束位置 6eq`/~#
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Y V#|qb
long nFileLength; //文件长度 =Xu(Js-
boolean bFirst = true; //是否第一次取文件 jQRl-[n
boolean bStop = false; //停止标志 NoD\t(@h
File tmpFile; //文件下载的临时信息 ;{S7bH'6m
DataOutputStream output; //输出到文件的输出流 m[E#$JZtG
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) NI)q<@ju
public SiteFileFetch(SiteInfoBean bean) throws IOException a,~}G'U
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siteInfoBean = bean; 03^?+[C
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); e}bY9
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); r>.^4Z@
if(tmpFile.exists ()) Y&y5^nG
{ 6fcn(&Qk
bFirst = false; 4M3{P
read_nPos(); S1G=hgF_L
} OYwH$5
else ns;nle|m
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nStartPos = new long[bean.getNSplitter()]; jSMs<ox
nEndPos = new long[bean.getNSplitter()]; [X=J]e^D
} ;&?l1Vu
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} O({vHqN>
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public void run() UCDvN
{ u[yUUYe
//获得文件长度 ?KF.v1w7
//分割文件 ]id5jVY
//实例FileSplitterFetch zyF[I6Gs
//启动FileSplitterFetch线程 *oP&'$P
//等待子线程返回 &9,<_1~
try{ 2}HS`) /
if(bFirst) b{i7FRR>o4
{ 1h0cId8d
nFileLength = getFileSize(); -Yf pfNt
if(nFileLength == -1) jm$v0=W9#
{ 5p5S_%R$e
System.err.println("File Length is not known!"); ?Rg8u
} ~n$e
else if(nFileLength == -2) Bvy(vc=UDW
{ dab[x@#r>
System.err.println("File is not access!"); ({l !'>?
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else 1> wt
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for(int i=0;i<nStartPos.length;i++) '@Q
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ee5QZ,
} 8`j;v>2
for(int i=0;i<nEndPos.length-1;i++) DGllJ_/Z
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nEndPos = nStartPos[i+1]; S/l?wwD
} \JX.)&>
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nEndPos[nEndPos.length-1] = nFileLength; P0N%77p>"
} 2~BId&]
} 3cztMi
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//启动子线程 d,0Yi
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fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; r\sQ8/
for(int i=0;i<nStartPos.length;i++) k2S6 SB
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), !Qd4Y=
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), lY_&P.B
nStartPos,nEndPos,i); ZZXQCP6]
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); <O#/-r>2
fileSplitterFetch.start(); 1]lm0bfs
} |( =`l
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), .5PcprE/
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ixFuqPij
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", &%/kPF~<
nEndPos = " + nFileLength); ;v? !Pml2k
// fileSplitterFetch[nPos.length-1].start(); Y)=89s&t
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//等待子线程结束 aykNH>#Po
//int count = 0; k_c8\::p#
//是否结束while循环 +R_w- NI
boolean breakWhile = false; ^KsiTVY
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while(!bStop) Y:0SrB!\
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write_nPos(); b6k'`vLA
Utility.sleep(500); v!pT!(h4
breakWhile = true; p ^U:O&U(
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for(int i=0;i<nStartPos.length;i++) .d;XLS~
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if(!fileSplitterFetch.bDownOver) Rj|8lK;,
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breakWhile = false; 3PEv.hGx
break; P"<