/* YL.z|{\e
**SiteFileFetch.java O-B3@qQ. h
*/ \8$`:3,@
package NetFox; =aekY;/
import java.io.*; kzmt'/ L8
import java.net.*; [D,:=p`
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public class SiteFileFetch extends Thread { Qnw$=L:
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SiteInfoBean siteInfoBean = null; //文件信息Bean |")x1'M
long[] nStartPos; //开始位置 N:<O
long[] nEndPos; //结束位置 9?:S:Sq
FileSplitterFetch[] fileSplitterFetch; //子线程对象 6a@~;!GlI
long nFileLength; //文件长度 toWmm(7v
boolean bFirst = true; //是否第一次取文件 O<3,n;56Z
boolean bStop = false; //停止标志 s/^k;qw
File tmpFile; //文件下载的临时信息 nT12[@:Tr
DataOutputStream output; //输出到文件的输出流 9,W-KM
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) !lF^~x
public SiteFileFetch(SiteInfoBean bean) throws IOException G4}q*&:k
{ }"-r;i
siteInfoBean = bean; ]R@G5d
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); R\}YD*
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); AAW7@\q.
if(tmpFile.exists ()) /kz&9FM
{ d0B+syl&4l
bFirst = false; r83~o/T@
read_nPos(); !.9vW&t
} 2X*<Fma3C
else mc'p-orAf
{ J$Epj
nStartPos = new long[bean.getNSplitter()]; :/NN=3e
nEndPos = new long[bean.getNSplitter()]; _p&$X
} M@ kZ(Rkv
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public void run() CiI:
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{ "^z=r]<5
//获得文件长度 At(9)6n8
//分割文件 QNXxpoS#
//实例FileSplitterFetch gN(hv.nQ
//启动FileSplitterFetch线程 K]8wW;N4
//等待子线程返回 MuGg
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try{ pXv[]v
if(bFirst) kW&Z%k
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nFileLength = getFileSize(); l7,qWSsnK
if(nFileLength == -1) 1omvE9
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{ Qiw4'xQm
System.err.println("File Length is not known!"); |"qB2.[
} n-3j$x1Ne
else if(nFileLength == -2) lzG;F]
{ K<6x4ha
System.err.println("File is not access!"); WN+Jf
} EAw#$Aq=
else DA)v3Nd
{ ;J-Ogt @d7
for(int i=0;i<nStartPos.length;i++) 6 v^
{ &hN&nH"PC
nStartPos = (long)(i*(nFileLength/nStartPos.length)); _F@p53WE
} %8CT -mQ
for(int i=0;i<nEndPos.length-1;i++) sLdUrD%
{ 5w)^~#'
nEndPos = nStartPos[i+1]; Dh No +"!z
} d[e:}1
nEndPos[nEndPos.length-1] = nFileLength; gH^$Y~Lx
} $H-D9+8 7
} |4.o$*0Y
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//启动子线程 eH%L?"J~:
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; uuYH6bw*d
for(int i=0;i<nStartPos.length;i++) ^[}0&_L
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{ yF5
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), &rztC]jF
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), (GEi<\16[
nStartPos,nEndPos,i); yC0f/O
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); `JWYPsWk
fileSplitterFetch.start(); o1X/<.0+
} }SMJD
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ?e y&Un"
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); nj^q@h
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 'CX.qxF1;p
nEndPos = " + nFileLength); m>+,^`0
// fileSplitterFetch[nPos.length-1].start(); )xvx6?Ah|
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//等待子线程结束 c >
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//int count = 0; mE^tzyh
//是否结束while循环 cxD}t'T
boolean breakWhile = false; \gp,Txueb
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while(!bStop) ,/?%y\:J
{ MeI2i
write_nPos(); a\&(Ua
Utility.sleep(500); Xh0wWU*
breakWhile = true; qBBYckS.
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for(int i=0;i<nStartPos.length;i++) ~w1{zxs
{ -.b
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if(!fileSplitterFetch.bDownOver) <RoX| zJw
{ i_0,BVC
breakWhile = false; A&|Wvb=
break; HTDyuqs
} hINnb7o
} rKzv8d
if(breakWhile) ;WvYzd9
break; ti{H(;;@
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//count++; MdVCD^B
//if(count>4) 'HQ7
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// siteStop(); |D;"D
} "rjv5*z^&
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System.err.println("文件下载结束!"); `R=a@DQ
} x2j/8]'o
catch(Exception e){e.printStackTrace ();} t<!+b@l5
} %A)-m 69
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//获得文件长度 Ad]<e?oN=
public long getFileSize() Gd30Be2gd
{ 8zQ_xE
int nFileLength = -1; 9UeVvH
try{ kyW6S+ #-
URL url = new URL(siteInfoBean.getSSiteURL()); ,J~,ga~
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); >a&