/* 6yR7RF}
**SiteFileFetch.java ;S%wPXj&
*/ $51#xe
package NetFox; ^=@%@mR/[C
import java.io.*; 9fV 57
import java.net.*; N0XGW_f
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public class SiteFileFetch extends Thread { &Y,Rm78
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SiteInfoBean siteInfoBean = null; //文件信息Bean )Y:CV,`
long[] nStartPos; //开始位置 z6Hl+nq B
long[] nEndPos; //结束位置 #a0 (Wh7
FileSplitterFetch[] fileSplitterFetch; //子线程对象 /RMep8&
long nFileLength; //文件长度 .FC1:y<aO
boolean bFirst = true; //是否第一次取文件 yf$7<gwX
boolean bStop = false; //停止标志 .d*v fE$
File tmpFile; //文件下载的临时信息 bySw#h_
DataOutputStream output; //输出到文件的输出流 ru U|
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 1]qhQd-u
public SiteFileFetch(SiteInfoBean bean) throws IOException C{,nDa?|
{ d9^h
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siteInfoBean = bean; CR_A{(
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 8<o(z'&y
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); mT9TSW}
if(tmpFile.exists ()) KSexG:Xb
{ $`riB$v
bFirst = false; y K{~
read_nPos(); P--#5W;^oB
} /f2*J
else t4Z.b 5g
{ cBAA32wf
nStartPos = new long[bean.getNSplitter()]; p'R}z|d)
nEndPos = new long[bean.getNSplitter()]; 6Y=$7%z
} ycH=L8
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public void run() )D@
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//获得文件长度 :|Z*aI]9
//分割文件 Nc7YMxk'H
//实例FileSplitterFetch .IgCC_C9
//启动FileSplitterFetch线程 A /o=a#
//等待子线程返回 U"ZDt
try{ :JOF!Q
if(bFirst) wvgX5P>
{ _qGkTiP
nFileLength = getFileSize(); 6 g!t1%Kb
if(nFileLength == -1) d6Z;\f7[
{ ;Z8K3p
System.err.println("File Length is not known!"); o|UZdGu
} /2YI!U@A
else if(nFileLength == -2) -dza_{&+iZ
{ kmuF*0Bjk
System.err.println("File is not access!"); g.veHh|;_
} w+JDu_9+A]
else KI#hII[Q.
{ .-o$IQsS
for(int i=0;i<nStartPos.length;i++) Xf.SJ8G
{ R[9[lQ'vR
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 5` Q#2
} VbZZ=q=Kd
for(int i=0;i<nEndPos.length-1;i++) x&7!m
{
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nEndPos = nStartPos[i+1]; Bq\%]2;eo{
} fghJj@ES
nEndPos[nEndPos.length-1] = nFileLength; n0cqM}P@;!
} "d{ |_Cf
} C^uXJ~8
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