/* j#"?Oe{_1
**SiteFileFetch.java &7!&]kA+
*/ AKC';J
package NetFox; O7I:Y85i#O
import java.io.*; 0PIC|
import java.net.*; E9;cd$}K
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public class SiteFileFetch extends Thread { znw\Dn?g
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SiteInfoBean siteInfoBean = null; //文件信息Bean 6&S;Nrg9
long[] nStartPos; //开始位置 E'?yI'~=
long[] nEndPos; //结束位置 t?L;k+sMM
FileSplitterFetch[] fileSplitterFetch; //子线程对象 9w^1/t&=04
long nFileLength; //文件长度 U,yU-8z/
boolean bFirst = true; //是否第一次取文件 $(H%|Oyn
boolean bStop = false; //停止标志 -~~"}u
File tmpFile; //文件下载的临时信息 ='q:Io?T
DataOutputStream output; //输出到文件的输出流 2i;G3"\
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) jwgXq(
public SiteFileFetch(SiteInfoBean bean) throws IOException 7c1xB.g
{ Gy
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siteInfoBean = bean; ,`v)nwP
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); fHCLsI
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 5 e~\o}]
if(tmpFile.exists ()) 'due'|#^
{ UM(tM9
bFirst = false; \?{nP6=
read_nPos(); %| }obiV)
} )Ge.1B$8h
else TYGUB%A
{ 8bLA6qmM\
nStartPos = new long[bean.getNSplitter()]; cu5Yvp
nEndPos = new long[bean.getNSplitter()]; m{
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} (ec?_N0=
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public void run() 6e3s
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{ JziuwL5,
//获得文件长度 wN\%b}pp
//分割文件 o@mZ 6!ax3
//实例FileSplitterFetch n#[-1(P
//启动FileSplitterFetch线程 k3h,c;
//等待子线程返回 2F[smUL
try{ 1Y:lFGoe
if(bFirst) wWv")dk3i
{
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nFileLength = getFileSize(); "Kx2k>ym
if(nFileLength == -1) U~n>k<`sr
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System.err.println("File Length is not known!"); D::$YR
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} !'o5X]s
else if(nFileLength == -2) XW
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System.err.println("File is not access!"); la:i!qAH
} D7H,49#1Q
else &4Q(>"iL4
{ 6!bp;iLKy
for(int i=0;i<nStartPos.length;i++) j/`-x
{ :Fz;nG-G
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ? piv]Z
} Ca?5bCI,
for(int i=0;i<nEndPos.length-1;i++) M9'Qs m
{ SIv8EMGo
nEndPos = nStartPos[i+1]; "jqC3$DKI
} ^-?5=\`5
nEndPos[nEndPos.length-1] = nFileLength; S=H<5*]g
} g+;)?N*j
} /` 891(f,
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//启动子线程 \g<9_
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 1ThONrxu
for(int i=0;i<nStartPos.length;i++) Vw.c05 x
{ X~ |P
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), )nmLgsg
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ):OGhWq
nStartPos,nEndPos,i); NSH20$A<
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ~CiVLSH=
fileSplitterFetch.start(); }`#OA]NZ
} _i{$5JJ+K2
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), y`O !,kW
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); m99j]wr~c
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", P=PcO>
nEndPos = " + nFileLength); Rj 2N+59rg
// fileSplitterFetch[nPos.length-1].start(); 4lhoA
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//等待子线程结束 ^Y z.,!B[
//int count = 0; Q;{[U!\:
//是否结束while循环 gZ%wmY
boolean breakWhile = false; GWo^hIfJ
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while(!bStop) R|aA6} /I
{ y57]q#k
write_nPos(); CBw/a0Uck
Utility.sleep(500); EV{kd.=f
breakWhile = true; c&r