/* S:B$c>
**SiteFileFetch.java corNw+|/w
*/ c"KN;9c,
package NetFox; Db4(E*/pj!
import java.io.*; t2x2_;a
import java.net.*; Nm$Ba.Rg
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public class SiteFileFetch extends Thread { h4p<n&)F
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SiteInfoBean siteInfoBean = null; //文件信息Bean 'h}(> %
long[] nStartPos; //开始位置 w'[JfMu P
long[] nEndPos; //结束位置 o8 _))
FileSplitterFetch[] fileSplitterFetch; //子线程对象 W(5XcP(
long nFileLength; //文件长度 T<?
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boolean bFirst = true; //是否第一次取文件 yz}ik^T
boolean bStop = false; //停止标志 OSoIH`tA
File tmpFile; //文件下载的临时信息 LV2#w_^I
DataOutputStream output; //输出到文件的输出流 |7%has3"
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) #`]`gNB0Yg
public SiteFileFetch(SiteInfoBean bean) throws IOException ej91)3AO
{ J.;!l
siteInfoBean = bean; AQ%B&Q(V1
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); K g6hySb
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); lbs0i
if(tmpFile.exists ()) Xwp6]lx
{ hGU
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bFirst = false; *kYJwO^
read_nPos(); TWSqn'<E
} cMs8D
else '4KN
{ 'p FK+j
nStartPos = new long[bean.getNSplitter()]; c,CcKy;+
nEndPos = new long[bean.getNSplitter()]; <)$&V*\
} jOUM+QO
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public void run() &]"Z x0t5%
{ _C@A>]GT
//获得文件长度 LZtO Q__B)
//分割文件 &|-jU+r}B
//实例FileSplitterFetch ?B+]Ex(\B,
//启动FileSplitterFetch线程 *I:a\o~$[
//等待子线程返回 )\KU:_l
try{ ~xLo0EV"
if(bFirst) mzf~qV^T
{ mE\)j*Nnv
nFileLength = getFileSize(); &=*sN`
if(nFileLength == -1) R$h
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System.err.println("File Length is not known!"); )O],$\u
} ' !2NSv
else if(nFileLength == -2) \@[Y~:
{ /IQ$[WR cx
System.err.println("File is not access!"); |&"/u7^
} `h%K8];<6f
else 6t\0Ui
{ 4wKQs&:
for(int i=0;i<nStartPos.length;i++) enGZb&
{ ~9y/MR
nStartPos = (long)(i*(nFileLength/nStartPos.length)); M
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} |(<A)C
for(int i=0;i<nEndPos.length-1;i++) -zg 6^f_pW
{ /HH_Zi0?N|
nEndPos = nStartPos[i+1]; VS\| f'E
} ;il+C!6zpf
nEndPos[nEndPos.length-1] = nFileLength; A]laS7Q
} :}UjX|D
} 82)%`$yZw[
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//启动子线程 >*/:"!u
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; }Ug$d>\
for(int i=0;i<nStartPos.length;i++) +~>cAWZq_
{ :d6]rOpX
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), j.!5&^;u4
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), EfB.K}b^
nStartPos,nEndPos,i); !hFzIp
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); qZdA%
fileSplitterFetch.start(); IyEfisOK?
} :HM~!7e
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), .6!cHL3ln
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); bt*
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", d]USk&8
nEndPos = " + nFileLength); "S+AkLe(
// fileSplitterFetch[nPos.length-1].start(); i#NtiZ.t=
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//等待子线程结束 % *ng *
//int count = 0; 'l<