/* '/g+;^_cB
**SiteFileFetch.java a&Du5(r;!
*/ G| oG:
package NetFox; )%w8>1}c
import java.io.*; %nf=[f
import java.net.*; g8A{aHb1}
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public class SiteFileFetch extends Thread { 4^_Au^8R(
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SiteInfoBean siteInfoBean = null; //文件信息Bean ky$:C,1t
long[] nStartPos; //开始位置 |o=ST
long[] nEndPos; //结束位置 6F/
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FileSplitterFetch[] fileSplitterFetch; //子线程对象 jYID44$
long nFileLength; //文件长度 yc=#Jn?S
boolean bFirst = true; //是否第一次取文件 bI6wE'h
boolean bStop = false; //停止标志 <SdJM1%Qo
File tmpFile; //文件下载的临时信息 +{ !t~BW
DataOutputStream output; //输出到文件的输出流 cG!2Iy~lA
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 00a<(sS;
public SiteFileFetch(SiteInfoBean bean) throws IOException #'J7Wy
{ L$c%u
siteInfoBean = bean; f?^Oy!1]
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 9~%]|_(
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); PFgjWp"Y
if(tmpFile.exists ()) l'".}6S
{ QYw4kD}
bFirst = false; >E ;o"
read_nPos(); /M*\t.[ 46
} `+Z#*lj|@
else bK$D lBZ
{ `yXx[deY
nStartPos = new long[bean.getNSplitter()]; (`.qG
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nEndPos = new long[bean.getNSplitter()]; G:C6`uiy`
} <&EO=A
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} ::Q);
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public void run() -L3
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{ bW.zxQ:
//获得文件长度 *
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//分割文件 ;4v}0N~.
//实例FileSplitterFetch P9mxY*K)%5
//启动FileSplitterFetch线程 K(KP3Q
//等待子线程返回 5J\|gZQF
try{ [Ro0eH
if(bFirst) /Q>{YsRRB
{ K-k.=6mS
nFileLength = getFileSize(); t,1! `/\
if(nFileLength == -1) 5QFXj)hR+4
{ {e[pSD6
System.err.println("File Length is not known!"); AH87UkNL
} LO} :Ub
else if(nFileLength == -2) '[yqi1
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System.err.println("File is not access!"); 2T(,H.O
} IQi[g~E.5
else m/c&/6nk
{ %OTA5
for(int i=0;i<nStartPos.length;i++) o- QG&
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); +s(IQt
} Q'Kik5I
for(int i=0;i<nEndPos.length-1;i++) BOiz ~h6
{ s!;VUr\
nEndPos = nStartPos[i+1]; L8w76|
} r|\'9"@
nEndPos[nEndPos.length-1] = nFileLength; eo*u(@
} A;WwS?fyQ
} [T[9*6Kt
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//启动子线程 0.BUfuuh
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; &kjwIg{
for(int i=0;i<nStartPos.length;i++) &c<}++'h
{ @FdCbPl$
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), JfP\7
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), <X I35\^
nStartPos,nEndPos,i); 4>"cc@8&~
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 4lh
fileSplitterFetch.start(); Ux)p%-
} q4.dLU,1
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 'f?&EsIV?
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); tC@zM.v%
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", mQ^@ \s
nEndPos = " + nFileLength); o&XMgY~
// fileSplitterFetch[nPos.length-1].start(); OBw`!G*w
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//等待子线程结束 bDFCZH-:'O
//int count = 0; A{8K#@!
//是否结束while循环 0nD=|W\@{
boolean breakWhile = false; DYT -#Ht
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while(!bStop) @
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{ ULNAH`{D
write_nPos(); DNW2;i<hsz
Utility.sleep(500); D _bkUR1
breakWhile = true; +{C9uY)$vf
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