/* d`?EEO
**SiteFileFetch.java Ak`?,*LM
*/ \8{Tj54NA
package NetFox; 2l+'p[b0>
import java.io.*; 02^\np
import java.net.*; K;`*n7=IA
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public class SiteFileFetch extends Thread { JqN$B\J,
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SiteInfoBean siteInfoBean = null; //文件信息Bean ](ztb)
long[] nStartPos; //开始位置 6QPbmO]z
long[] nEndPos; //结束位置 w3>G3=b
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Vhm^<I-d
long nFileLength; //文件长度 sdewz(xskj
boolean bFirst = true; //是否第一次取文件 %74f6\
boolean bStop = false; //停止标志 N'5DB[:c:
File tmpFile; //文件下载的临时信息 s.Mrd~(Drz
DataOutputStream output; //输出到文件的输出流 03
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) La^Zr,T!
public SiteFileFetch(SiteInfoBean bean) throws IOException f|!@H><
{ (hY^E(D
siteInfoBean = bean; Jju?v2y`
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); SN QLEe
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); l29AC}^
if(tmpFile.exists ()) ]?jmRk^.
{ Oh}@c~7;
bFirst = false; T(q Hi?Y
read_nPos(); t!ZFpMv]n
} q<fj1t1w
else p7*7V.>X
{ Z%-uyT@a
nStartPos = new long[bean.getNSplitter()]; 6|Rj
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nEndPos = new long[bean.getNSplitter()]; brn>FFAwO
} @:9mTP7
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public void run() l4^8$@;s
{ 6& 9q6IIy
//获得文件长度 ?N%5c%oF
//分割文件 /hyCR___
//实例FileSplitterFetch Ga*
//启动FileSplitterFetch线程 aUBu"P$J
//等待子线程返回 `\-MpNw
try{ twTRw:.!f
if(bFirst) cja-MljD
{ lo>:S1
nFileLength = getFileSize(); r2Q) Q
if(nFileLength == -1) Lhgs|*M
{ g{7?#.7
System.err.println("File Length is not known!"); & *&
} 'Cywn^Ym#
else if(nFileLength == -2) TF,a`?c`
{ JnH5v(/
System.err.println("File is not access!"); l)0yv2[h
} Y9(BxDP_+Y
else ewinG-hX_
{ 'VY\ut
for(int i=0;i<nStartPos.length;i++) ,!^w
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); L\kT9wWK|
} D_cd
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for(int i=0;i<nEndPos.length-1;i++) R2[
}
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nEndPos = nStartPos[i+1]; nx4E}8!Lh
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nEndPos[nEndPos.length-1] = nFileLength; [WunA,IuR
} <=~'Pd-f(
} 5z:/d `P[
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//启动子线程 YWa9|&m1
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; i0&]Ig|;
for(int i=0;i<nStartPos.length;i++) $2*&\/;-E!
{ 3nkO+qQ
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 'P)[=+O?t
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), CQ%yki
nStartPos,nEndPos,i); >qIZ
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); KTu&R6|
fileSplitterFetch.start(); a<V* )
} V -9z{
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), qS2]|7q?Tc
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); xZ&S7G1