/* Gr: 3{o`
**SiteFileFetch.java gcf6\f}\<
*/ &:3Z.G
package NetFox; C!&y
import java.io.*; 7LCp7$Cp
import java.net.*; KKEN'-3
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public class SiteFileFetch extends Thread { c*;7yh&%
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SiteInfoBean siteInfoBean = null; //文件信息Bean r?A|d.Tl
long[] nStartPos; //开始位置 Puh$%;x
long[] nEndPos; //结束位置 *hdC?m._
FileSplitterFetch[] fileSplitterFetch; //子线程对象 iev>9j
long nFileLength; //文件长度 B4ZIURciGz
boolean bFirst = true; //是否第一次取文件 p'f%%#I
boolean bStop = false; //停止标志 r-IT(DzkD
File tmpFile; //文件下载的临时信息 Quzo8u
DataOutputStream output; //输出到文件的输出流 VK:8 Nk_y
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 'O?~p55T
public SiteFileFetch(SiteInfoBean bean) throws IOException eV7u*d?
{ (GcT(~Gq)D
siteInfoBean = bean; wX,F`e3"/
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); %gd(wzco
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); vq!uD!lr
if(tmpFile.exists ()) kKiA
{ u~1o(Zn
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bFirst = false; <>Y?vC
read_nPos();
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} -$2kO`|p
else cz/Q/%j$/
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nStartPos = new long[bean.getNSplitter()]; ycAKK?O*
nEndPos = new long[bean.getNSplitter()]; O+~ 7l?o
} Dyg?F
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} )G1P^WV4
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public void run() ]; Wx
{ Te,$M3|
//获得文件长度 nV_8Ke
//分割文件 fJAnKUF)
//实例FileSplitterFetch [I;^^#'P
//启动FileSplitterFetch线程 P\nC?!Q%c
//等待子线程返回 58tVx'1y
try{ qe$^q
if(bFirst) #z'uRHx%=0
{ 3)=c]@N0
nFileLength = getFileSize(); @>Mxwpl?
if(nFileLength == -1) \]4v_!
{ Gi2$B76<
System.err.println("File Length is not known!"); _-TA{21)
} 2&!bfq![
else if(nFileLength == -2) 0k,-; j,
{ gB'fFkd
System.err.println("File is not access!"); E#wS_[
} J% H;%ROx
else [K/m
{ _~u2: yl(
for(int i=0;i<nStartPos.length;i++) l^MzN
{ }J:+{4Yn
nStartPos = (long)(i*(nFileLength/nStartPos.length)); J%lgR
} Q Fm|-j
for(int i=0;i<nEndPos.length-1;i++) \55VqGyxu9
{ (~~w7L
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nEndPos = nStartPos[i+1]; @=jWHS
} kX`[Y@nUN
nEndPos[nEndPos.length-1] = nFileLength; /Ci*Az P
} vQ}6y
} 1 rs&74-
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s*/ bi
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//启动子线程 J(4"S o_
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; $j}OB6^I
for(int i=0;i<nStartPos.length;i++) j^tW
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{ 2dp>Z",
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), u c7Eq45
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 9^Fz iM
nStartPos,nEndPos,i); ZK;z m
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); SP* fv`
fileSplitterFetch.start(); CIU1R;
} mrIh0B:`
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), m%;D
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); W14F
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", *Xo]-cKL0
nEndPos = " + nFileLength); )SryDRT
// fileSplitterFetch[nPos.length-1].start(); c~QS9)=E
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//等待子线程结束 K~=UUB
//int count = 0; 6 DG@?O
//是否结束while循环 9O{b]=>wq
boolean breakWhile = false; @%k}FL=:t(
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while(!bStop) (C4fG@n
{ jls-@Wl
write_nPos(); X\EVTd)@
Utility.sleep(500); 3rLTF\
breakWhile = true;
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for(int i=0;i<nStartPos.length;i++) @36u8pE
{ Zo1,1O
if(!fileSplitterFetch.bDownOver) Ookh<ES>
{ 8-<:i
breakWhile = false; ifN64`AhRX
break; AJ#Nenmj
} {*{Ox[Nh{
} @(r/dZc
if(breakWhile) y.KO :P?5{
break; .bBdQpF-
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//count++; quY:pqG38q
//if(count>4) vfVj=DYj
// siteStop(); Ft}@1w5
} h=;{oY<V)?
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System.err.println("文件下载结束!"); 2-Y<4'>
} /Q,mJ.CnSR
catch(Exception e){e.printStackTrace ();} MEB it
} SlsdqP
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//获得文件长度 8WnwQ%;m?
public long getFileSize() *z@>!8?
{ '7O3/GDK
int nFileLength = -1; lg^Z*&(
try{ !47n[Zs
URL url = new URL(siteInfoBean.getSSiteURL()); 1GzAG;UUo6
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); k:7(D_
httpConnection.setRequestProperty("User-Agent","NetFox"); -GxaV #{
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int responseCode=httpConnection.getResponseCode(); '-zD
if(responseCode>=400) 3Z1CWzq(
{ Y]&j,j&
processErrorCode(responseCode); K6R.@BMN
return -2; //-2 represent access is error 9T<x&
} =>-Rnc@
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String sHeader; EN/,5<S<,[
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for(int i=1;;i++) } }59V&'t
{ VVlr*`
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); -fDnA4;
//Utility.log(in.readLine()); q.;u?,|E/
sHeader=httpConnection.getHeaderFieldKey(i); &q9T9AOS
if(sHeader!=null)
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{ n@)K #
if(sHeader.equals("Content-Length")) |:gf lseE
{ ]9^sa-8
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); %KLpig
break; 7j-4TY~
} E 7{U|\
} -qGa]a
else > ;*b|Ik
break; HAa;hb
} A6thXs2
} c24dSNJg,
catch(IOException e){e.printStackTrace ();} h'{ C[d
catch(Exception e){e.printStackTrace ();} r 8RoE`/T
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Utility.log(nFileLength); ]>5/PD,wWy
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return nFileLength; u 7>],<
} ig/xv
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