/* q"OJF'>w5
**SiteFileFetch.java P)k!#*
*/ loR,f&80=O
package NetFox; -V\$oVS0S
import java.io.*; JsY|Fv
import java.net.*; A])+Pe
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public class SiteFileFetch extends Thread { &?wNL@n
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SiteInfoBean siteInfoBean = null; //文件信息Bean )^q7s&p/
long[] nStartPos; //开始位置 _
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long[] nEndPos; //结束位置 GyP.;$NHa[
FileSplitterFetch[] fileSplitterFetch; //子线程对象 =,HxtPJ
long nFileLength; //文件长度 8
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boolean bFirst = true; //是否第一次取文件 <,\Op=$l3I
boolean bStop = false; //停止标志 NW
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File tmpFile; //文件下载的临时信息 9`8D Ga
DataOutputStream output; //输出到文件的输出流 R32A2Ml
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) NJqjW
public SiteFileFetch(SiteInfoBean bean) throws IOException 9% wVE]
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siteInfoBean = bean; m&&Y=2
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); L3s1a -K
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); o)}M$}4
if(tmpFile.exists ()) X
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{ f?P>P23
bFirst = false; 67]kT%0
read_nPos(); ;+6TZqklQ
} KbicP<
else .9'bi#:Cw
{ L';b908r2
nStartPos = new long[bean.getNSplitter()]; POl_chq
nEndPos = new long[bean.getNSplitter()]; g)/#gyT4Y
} G-#]|)
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} ~REP@!\r^
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public void run() ~bsL
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//获得文件长度 8-.jf
//分割文件 "u=U@1 ^
//实例FileSplitterFetch b>_eD-
//启动FileSplitterFetch线程 :3h'Hr
//等待子线程返回 = 3("gScUj
try{ M>m+VsJV
if(bFirst) LF?MO1!M
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nFileLength = getFileSize(); ;"T,3JQPn6
if(nFileLength == -1) 7!kbe2/]'
{ t,4'\nv*
System.err.println("File Length is not known!"); =E~)svl6g
} .R! /?eN
else if(nFileLength == -2) S)L(~N1
{ ,2*x4Gycb
System.err.println("File is not access!"); z!>
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} @Y| %
else RX6s[uQ
{ S1&Df%Ra
for(int i=0;i<nStartPos.length;i++) Y[p
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); )Co&(;zf
} 1.6Y=Mh=i[
for(int i=0;i<nEndPos.length-1;i++) z pV+W-j]
{ JA(M'&q4
nEndPos = nStartPos[i+1]; k}tTl 2
} "H"4]m1Wc
nEndPos[nEndPos.length-1] = nFileLength; oy<
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} zhW.0:9
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} DI,8y"!5
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//启动子线程 S#g=;hD
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; g]a5%8*{
for(int i=0;i<nStartPos.length;i++) iF!r}fUU6
{ >?yxig:_
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 9 U!-Zn!
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), *B ]5K{N
nStartPos,nEndPos,i); s>+,u7EV
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); >||=# ;
fileSplitterFetch.start(); \
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} DuzJQSv
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), FXd><#U
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); i<>zN^zn
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", p^/6Rb"e
nEndPos = " + nFileLength); #lo1GoL\
// fileSplitterFetch[nPos.length-1].start(); 8H<:?D/tH
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//等待子线程结束 |WMP_sGn
//int count = 0; `Ir{ax&H.e
//是否结束while循环 sPoH12?AL
boolean breakWhile = false; =bDy :yY}
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while(!bStop) 6Q}WX[| tQ
{ k6|wiSyu
write_nPos(); = U)e_q
Utility.sleep(500); 2F-
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breakWhile = true; ^9wQl!e
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for(int i=0;i<nStartPos.length;i++) /_g-w93
{ [flx/E
if(!fileSplitterFetch.bDownOver) ;wF 0s
{ ~o?(O1QY
breakWhile = false; a3?D@@Qnw
break; 8e{S(FZ7Ed
} ~wl4
} mYRW/8+g
if(breakWhile) a
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break; p;k7\7
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//count++; KMo]J1o
//if(count>4) kH9P(`;Vq
// siteStop(); .*_uXQ
} O>)Fl42IeD
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System.err.println("文件下载结束!"); d>OLnG>
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} jXCSD@?]K
catch(Exception e){e.printStackTrace ();} {=)g?!zC
} :,]*~Nl
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//获得文件长度 z&x3":@u<
public long getFileSize() =FfxHo1k
{ *W&}}iL
int nFileLength = -1; {!G
try{ Aq~}<qkIF+
URL url = new URL(siteInfoBean.getSSiteURL()); WPnw
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ay-M.J
httpConnection.setRequestProperty("User-Agent","NetFox"); Rz\:)<G
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int responseCode=httpConnection.getResponseCode(); Z&w/JP?
if(responseCode>=400) Yfotq9.=+
{ Jq8CII
processErrorCode(responseCode); $MPh\T
return -2; //-2 represent access is error tITx+i
} @_
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String sHeader; YrRD3P.P
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for(int i=1;;i++) k.MAX8
{ MfJ8+3@K
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); npD`9ff
//Utility.log(in.readLine()); ,KO_h{mI<
sHeader=httpConnection.getHeaderFieldKey(i); +&j