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**SiteFileFetch.java iG=XRctgj)
*/ KwhATYWQb
package NetFox; iLf*m~Q
import java.io.*; USbFUHdDc
import java.net.*; [k7 ;^A5/
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public class SiteFileFetch extends Thread { l1]'3]P(
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SiteInfoBean siteInfoBean = null; //文件信息Bean :bz;_DZP
long[] nStartPos; //开始位置 BzI(
long[] nEndPos; //结束位置 A7TV-eWG
FileSplitterFetch[] fileSplitterFetch; //子线程对象 %(g!,!l)
long nFileLength; //文件长度 zCSLV>.F
boolean bFirst = true; //是否第一次取文件 @;>Xy!G
boolean bStop = false; //停止标志 4m6%HV8{}[
File tmpFile; //文件下载的临时信息 '
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DataOutputStream output; //输出到文件的输出流 =v~$&@
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) Z^GXKOeq
public SiteFileFetch(SiteInfoBean bean) throws IOException h($Jo
{ {D4N=#tl
siteInfoBean = bean; /
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//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); L$= a,$
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ux>LciNq
if(tmpFile.exists ()) TJkWL2r0c
{ [P%'p-Hg_
bFirst = false; Z/b,aZhB
read_nPos(); B-tLRLWn
} Xvn \~Vr
else 3y-P-NI~=
{ Q@.%^1Mp
nStartPos = new long[bean.getNSplitter()]; Z4tc3e
nEndPos = new long[bean.getNSplitter()]; TV(%e4U=
} <"!'>ZUt
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} qX*Xo[Xp
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public void run() )|<g\>/
{ 10$:^
//获得文件长度 @wa<nYd
//分割文件 qnf\K}
//实例FileSplitterFetch bs_rw+
//启动FileSplitterFetch线程 (.~'\@
//等待子线程返回 =B
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try{ j9 &0/
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if(bFirst) D0rqte
{ &Y$)s<u8.
nFileLength = getFileSize(); KPdlg.
if(nFileLength == -1) aN~x3G
{ anFl:=
System.err.println("File Length is not known!"); qgsw8O&
} n]bxG8~t
else if(nFileLength == -2) Ct}rj-L<i
{ 3E:+DF-Z\
System.err.println("File is not access!"); WvWZzlw
} a,\GOy(q{
else +(vL~
{ KPI[{T\`ZM
for(int i=0;i<nStartPos.length;i++) >2;KPV0H
{ G>W:3y
nStartPos = (long)(i*(nFileLength/nStartPos.length)); Q?-u J1J
} scR+F'M
for(int i=0;i<nEndPos.length-1;i++) 30L/-+r1
{ Tg6nb7@P
nEndPos = nStartPos[i+1]; zjwo"6c>
} x DX_s:A
nEndPos[nEndPos.length-1] = nFileLength; R5'_il
} k1M?6TW&
} t:qPW<wc
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//启动子线程 Aq{7WA
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; K]dX5vJw'
for(int i=0;i<nStartPos.length;i++) jp+#N
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{ <^B!.zQ
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), LZrkFkiC
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), (JeRJ4
nStartPos,nEndPos,i); _ +A$6l
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); K@;ls
fileSplitterFetch.start(); iuWw(dJk
}
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