/* nTtt$I@hW
**SiteFileFetch.java [;LPeO
*/ \ g[f4xAV
package NetFox; A[,"jh
import java.io.*; ZT-45_
import java.net.*; VflPNzixb!
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public class SiteFileFetch extends Thread { [t=+$pf(-
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SiteInfoBean siteInfoBean = null; //文件信息Bean ,HO/Q6;N
long[] nStartPos; //开始位置 0v)mgrl=,
long[] nEndPos; //结束位置 ?bYQZJ>&
FileSplitterFetch[] fileSplitterFetch; //子线程对象 gl\{QcI8<
long nFileLength; //文件长度 d=OO(sf
boolean bFirst = true; //是否第一次取文件 IEsD=
boolean bStop = false; //停止标志 e=Tc(Mwn
File tmpFile; //文件下载的临时信息 pYvF}8
DataOutputStream output; //输出到文件的输出流 waq_ d.
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) -Aym+N9
public SiteFileFetch(SiteInfoBean bean) throws IOException 8JO\%DFJ
{ G.E~&{5xQ
siteInfoBean = bean; Hf]}OvT>Z
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 6o23#JgN
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); LYT<o FE-
if(tmpFile.exists ()) NeZYchR
{ F4{. 7BT
bFirst = false; j\L$dPZ
read_nPos(); #w?%&,Kp
} z)y(31K<1
else ph'SS=!.
{ a|{<#<6n(
nStartPos = new long[bean.getNSplitter()]; k.R/X
nEndPos = new long[bean.getNSplitter()]; ~map5@Kd
} CpdY)SMSL
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} {[y"]_B4
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public void run() E1Aa2
{ _~&vs<
//获得文件长度 en6AAr:U}
//分割文件 {ZI6!zh'
//实例FileSplitterFetch _Wsk3AP
//启动FileSplitterFetch线程 tJfN6
//等待子线程返回 bD[W~ku
try{ \bmboNe
if(bFirst) t4W0~7
{ 2Sd6b 2-
nFileLength = getFileSize(); &`y_R'
if(nFileLength == -1) {YLJKu!M
{ p.Yg-CA
System.err.println("File Length is not known!"); _BaS\U%1(
} f5XcBW9E
else if(nFileLength == -2) WSccR
{ 1,D
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System.err.println("File is not access!"); aL6 5t\2
} @9
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else I{UB!0H
{ qGUe0(
for(int i=0;i<nStartPos.length;i++) <.XoC?j
{ ,(?4T~
nStartPos = (long)(i*(nFileLength/nStartPos.length)); RwHXn]1
} Os]M$c_88
for(int i=0;i<nEndPos.length-1;i++) j~>
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{ qiJ;v1
nEndPos = nStartPos[i+1]; j0NPd^
} I}3K,w/7mi
nEndPos[nEndPos.length-1] = nFileLength; *Z(C')7r
} 9
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} e';c8WF3E
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//启动子线程 Q#bo!]H{t
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; *3oQS"8
for(int i=0;i<nStartPos.length;i++) oQB1fs
{ ttt&sW`
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), +/8?+1E ^
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), O3GaxM\x
nStartPos,nEndPos,i); UZ0O
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Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); K`2DhJC
fileSplitterFetch.start(); OtqLigt&l
} \K=PIcH
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), IUG.q8
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 45JLx?rN_
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", +@v} (
nEndPos = " + nFileLength); 2xm?,p`
// fileSplitterFetch[nPos.length-1].start(); Y0'^S<ox
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//等待子线程结束 +& Qqu`)?F
//int count = 0; }('QIvq2
//是否结束while循环 6%axbB
boolean breakWhile = false; l'R`XGT
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while(!bStop) }Ec"&
{ GY :IORuA4
write_nPos(); Ghe=hhZ
Utility.sleep(500); ai2}vR
breakWhile = true; 7nIMIkT:
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for(int i=0;i<nStartPos.length;i++) AG=1TZI"
{ >qZRIDE5$
if(!fileSplitterFetch.bDownOver) %uMsXa
{ y[eNM6p
breakWhile = false; M,lu)~H
break; y5
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