/* dx)v`.%V
**SiteFileFetch.java hB1Gtc4n
*/ tK LAA+Z
package NetFox; 2`cVi"U
import java.io.*; Zoyo:vv&
import java.net.*;
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public class SiteFileFetch extends Thread { G}0fk]%\:
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SiteInfoBean siteInfoBean = null; //文件信息Bean Ku<_N]9
long[] nStartPos; //开始位置 A]%hM_5 s
long[] nEndPos; //结束位置
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FileSplitterFetch[] fileSplitterFetch; //子线程对象 .,( ,<
long nFileLength; //文件长度 m9li% p
boolean bFirst = true; //是否第一次取文件 nyr)d%I{
boolean bStop = false; //停止标志 !Z`xwk"!
File tmpFile; //文件下载的临时信息 7).zed^
DataOutputStream output; //输出到文件的输出流 VsR`y]"g
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) GcA!I!j/
public SiteFileFetch(SiteInfoBean bean) throws IOException K)n0?Q_>
{ t.tdY
siteInfoBean = bean; ;WpPdR2
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); gKay3}w
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); :fE*fU@
if(tmpFile.exists ()) ?$\y0lHw/7
{ *3W e5
bFirst = false; DU:
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read_nPos(); z0m[25FQG
} ,wlSNb@'
else ~*Ir\wE
{ Y2Y!^A89
nStartPos = new long[bean.getNSplitter()]; q{t"=@lX01
nEndPos = new long[bean.getNSplitter()]; gDJ@s
} |~3$L\X
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} 5"JnJH
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public void run() .DkDMg1US
{ tFd^5A*
//获得文件长度 !%2aw0Yv
//分割文件 @9rmm)TZ
//实例FileSplitterFetch xR,;^R|C
//启动FileSplitterFetch线程 7l})`>
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//等待子线程返回 YMx
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try{ Z0 e+CEzq
if(bFirst) cMEM}Qh
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nFileLength = getFileSize(); pPG@_9qf
if(nFileLength == -1) Gr;~P*
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System.err.println("File Length is not known!");
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} #:68}f"$
else if(nFileLength == -2) ku'%+svD
{ Te#wU e-|
System.err.println("File is not access!"); `<>8tZS9"
} >P=xzg79
else ::vw1Es
{ {fMrx1
for(int i=0;i<nStartPos.length;i++) ZtEHP`Iin
{ t@/r1u|iq
nStartPos = (long)(i*(nFileLength/nStartPos.length)); S@7A)
} {Pg7IYjH
for(int i=0;i<nEndPos.length-1;i++) cuR|cUK
{ j>s%q.
nEndPos = nStartPos[i+1]; ryx<^q
} kkrQ;i)Z
nEndPos[nEndPos.length-1] = nFileLength; %'* |N[
} ?XGZp?6
} ;8g#"p*&
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//启动子线程 nwN<Q\]S
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; l:HO|Mq
for(int i=0;i<nStartPos.length;i++) ^B& Z
{ mc(&'U8R0I
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), O|j5ulO}&"
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 3Uag[ms
nStartPos,nEndPos,i); &r<<4J(t
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ]V@!kg(p8
fileSplitterFetch.start(); l}(~q!r
} jgbw'BBu
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), fJE ki>1
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); <tF]>(|M
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Ky nZzR
nEndPos = " + nFileLength); )X^nzhZ2O"
// fileSplitterFetch[nPos.length-1].start(); Ya9uu@F
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//等待子线程结束 )cqhbR
//int count = 0; LOida# R
//是否结束while循环 aYj3a;EmU
boolean breakWhile = false; x(b&r g.-0
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while(!bStop) 2s{yg%U(
{ <01B\t7
write_nPos(); tIr66'8
Utility.sleep(500); D9LwYftZ
breakWhile = true; ,OasT!Sr
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for(int i=0;i<nStartPos.length;i++) kcYR:;y
{ +bO{UC[
if(!fileSplitterFetch.bDownOver) T]vD ,I+
{ *Cb(4h-
breakWhile = false; @P.l8|w
break; So8P8TCK
} ^2??]R&Q
} ]Pd*w`R
if(breakWhile) e.jgV=dT-
break; 8@qahEgQ
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//count++; FCe503qND$
//if(count>4) N4Lk3]
// siteStop(); OKU P
}
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System.err.println("文件下载结束!"); 7uDUZdJy
} ;|^fAc~9{r
catch(Exception e){e.printStackTrace ();} RTU:J67E
} ,\m c.80
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//获得文件长度 5[R}MhLZ
public long getFileSize() uJO*aA{K
{ a@a1/3
int nFileLength = -1; #X8[g _d/
try{ .Sn1YAhE
URL url = new URL(siteInfoBean.getSSiteURL()); xn@jL;+<-
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); MQ+ek4
httpConnection.setRequestProperty("User-Agent","NetFox"); 9C.cz\E
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int responseCode=httpConnection.getResponseCode(); 7h<K)aT
if(responseCode>=400) ?4Lo"igAA
{ xH0/R LK3J
processErrorCode(responseCode); <