/* fx|$(D@9
**SiteFileFetch.java K1RTAFf /
*/ ji{V#
package NetFox; d|Wpub
import java.io.*; cw#p!mOi~
import java.net.*; 7V?]Qif~
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public class SiteFileFetch extends Thread { *1iJa
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SiteInfoBean siteInfoBean = null; //文件信息Bean cT^,[3i:c
long[] nStartPos; //开始位置 eG26m_S=
long[] nEndPos; //结束位置 M`HXUA4
FileSplitterFetch[] fileSplitterFetch; //子线程对象 J'tc5Ip!}V
long nFileLength; //文件长度 2vWJ|&|p
boolean bFirst = true; //是否第一次取文件 >69xl^Gd
boolean bStop = false; //停止标志 R7cY$K{j
File tmpFile; //文件下载的临时信息 #:L|-_=a
DataOutputStream output; //输出到文件的输出流 '7[{ISBXU
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) @TC_XU)&
public SiteFileFetch(SiteInfoBean bean) throws IOException YhFB*D;
{ Dw
siteInfoBean = bean; M5 ep\^
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); {/12.y=)~
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); <jU[&~p
if(tmpFile.exists ()) ch,<4E/c[R
{ c:"*MM RC
bFirst = false; k!O#6Z
read_nPos(); e#IED!U
} esmQ\QQ^1
else 1g{`1[.QO
{ uy{mSx?td
nStartPos = new long[bean.getNSplitter()]; +#O?a`f
nEndPos = new long[bean.getNSplitter()]; 69(z[opW
} fKIwdk%!-
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} P:t|'t
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public void run() a_'W1ek-@
{ x- ) D@dw<
//获得文件长度 \^SL Zhe
//分割文件 a^i`DrX
//实例FileSplitterFetch yyxGVfr
//启动FileSplitterFetch线程 vV.'&."g
//等待子线程返回 punc'~
try{ F7UY>z3jL
if(bFirst) 'R8VCj
{ 2qKo|'gL`
nFileLength = getFileSize(); sl-LX)*N#
if(nFileLength == -1) T=:&W3
{ ^sd+s ~xx
System.err.println("File Length is not known!"); NS6Bi3~
} zAt!jP0E
else if(nFileLength == -2) CF>k_\/Bj
{ S(mJ;C
System.err.println("File is not access!"); bG67TWY)
} z^I"{eT8
else Qpiv,n
{ wcP0PfY
for(int i=0;i<nStartPos.length;i++) ~ C6<75
{ 9+h9]T:9
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 8e)k5[\m
} [ivz/r(Rj
for(int i=0;i<nEndPos.length-1;i++) @^}
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{ ,7SLc+
nEndPos = nStartPos[i+1]; d|]F^DDuI
} ukv
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nEndPos[nEndPos.length-1] = nFileLength; ,XCC#F(d1
} =PAvPj&}e
} 8dq{.B?
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//启动子线程 u-Ct-0
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; vlIet$k
for(int i=0;i<nStartPos.length;i++) rX%#Q\0h
{ Qbfm*JP~
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), P1=bbMk
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 6tI7vLmG
nStartPos,nEndPos,i); ~-lIOQ.v
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Tz+2g&+
fileSplitterFetch.start(); $&nF1HBI4