/* @>Km_Ax
**SiteFileFetch.java ^ Q ?
*/ 5(Q%XQV*P
package NetFox; 5IjGm
import java.io.*; 3kp+<$
import java.net.*; ^'{Fh"5
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public class SiteFileFetch extends Thread { $1L>)S
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SiteInfoBean siteInfoBean = null; //文件信息Bean Pw`8Wj
long[] nStartPos; //开始位置 w;:*P
long[] nEndPos; //结束位置 E,x+JeKV
FileSplitterFetch[] fileSplitterFetch; //子线程对象 YWO)HsjP
long nFileLength; //文件长度 ">,|V-H
boolean bFirst = true; //是否第一次取文件 XnMvKPerv'
boolean bStop = false; //停止标志 ~[nSXnPO
File tmpFile; //文件下载的临时信息 ?ri?GmI|
DataOutputStream output; //输出到文件的输出流 ,CcV/K
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) Q1I6$8:7
public SiteFileFetch(SiteInfoBean bean) throws IOException :vQrOn18p
{ }?_?V&K|
siteInfoBean = bean; ,77d(bR<
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); RmeD$>7
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); o&)8o5
if(tmpFile.exists ()) umH40rX+
{ ep)n_!$OH"
bFirst = false; k&vz7Q`T
read_nPos(); WH@,kH@
} Ma']?Rb`
else g63(E,;;J
{ J7Hl\Q[D1
nStartPos = new long[bean.getNSplitter()]; ~#[yJNYQ
nEndPos = new long[bean.getNSplitter()]; -[9JJ/7y
} .*S#aq4S
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} IT7wT+
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public void run() g._]8{K
{ qHplJ "
//获得文件长度 %i9E @EV
//分割文件 RSyUaA
//实例FileSplitterFetch %G/hD
//启动FileSplitterFetch线程 }mYx_=+VX
//等待子线程返回 F Q7T'G![
try{ t?-n*9,#S
if(bFirst) Ml{Z
{ Ms5ap<q#
nFileLength = getFileSize(); BxWPC#5
if(nFileLength == -1) c%2QZ C
{ 'qb E=
System.err.println("File Length is not known!"); nn:.nU|I
} L~rBAIdD
else if(nFileLength == -2) p;59?
{ oim9<_
System.err.println("File is not access!"); +\c5]`
} F|o:W75
else ;4^Rx
{ +>Qq(Y
for(int i=0;i<nStartPos.length;i++) 5j<mbt}
{ vMi;+6'n>
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 9N%We|L,c
} D9CaFu
for(int i=0;i<nEndPos.length-1;i++) 7$vYo
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{ Pw7]r<Q
nEndPos = nStartPos[i+1]; <ro7vPKNa
} LqoB 10Kc\
nEndPos[nEndPos.length-1] = nFileLength; 6Z6'}BDP
} 6S'yZQ|b
}
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//启动子线程 +j`5F3@
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; fo*2:?K&
for(int i=0;i<nStartPos.length;i++) \Xt7`I<
{ \}u
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), (lBCO?`fx
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), LEbB(x;@
nStartPos,nEndPos,i); N
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Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); @w#-aGJO
fileSplitterFetch.start(); n/;WxnnQ
} t9k zw*U9
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), $<dH?%!7
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Z58X5"
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", {3>$[bT
nEndPos = " + nFileLength); Zw
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// fileSplitterFetch[nPos.length-1].start(); zH?!
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//等待子线程结束 ]^. _z
//int count = 0; qOIyub
//是否结束while循环 ?/wm (uL
boolean breakWhile = false; :}L[sl\R
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while(!bStop) ="1Ind@w!
{ %B2'~|g
write_nPos(); G}9Jg
Utility.sleep(500); rKe2/4>0X
breakWhile = true; q~b&
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for(int i=0;i<nStartPos.length;i++) Maha$n*
{ tVYF{3BhA
if(!fileSplitterFetch.bDownOver) `&r