/* -Z:x!M[Xr
**SiteFileFetch.java e21J9e6z
*/ !*~QB4\2b
package NetFox; (M1YOK) I
import java.io.*; -N^Ah_9ek
import java.net.*; kiN,N]-V
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public class SiteFileFetch extends Thread { l#T%N@X
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SiteInfoBean siteInfoBean = null; //文件信息Bean ZAy/u@qt
long[] nStartPos; //开始位置 v'?o#_La+
long[] nEndPos; //结束位置 |O>e=HC#q8
FileSplitterFetch[] fileSplitterFetch; //子线程对象 }T\.;$f
long nFileLength; //文件长度 _<mY|
boolean bFirst = true; //是否第一次取文件 O.QR1
boolean bStop = false; //停止标志 [sk n9$
File tmpFile; //文件下载的临时信息 M \k[?i
DataOutputStream output; //输出到文件的输出流 ^&mrY[;S
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 2bw), W
public SiteFileFetch(SiteInfoBean bean) throws IOException Hc>yZ:c;
{ ke;=Vg|
siteInfoBean = bean; b+ycEs=_
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 286reeN/e
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); R+K|K2"
if(tmpFile.exists ()) "62g!e}!c
{ xYv;l\20.
bFirst = false; AhA&=l
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read_nPos(); ]R}(CaT1
} XgnNYy6W
else qyVARy
{ 6QT&{|q=
nStartPos = new long[bean.getNSplitter()]; p9 ,[kb
nEndPos = new long[bean.getNSplitter()]; wy:Gy9\
} 0L32sFy
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} 4\|Q;@f
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public void run() pi#a!Quf\
{ JCBX?rM/
//获得文件长度 Vrlqje_Q
//分割文件 P=<lY},
//实例FileSplitterFetch Z]DZ:dF
//启动FileSplitterFetch线程 Pn9;&`t
//等待子线程返回 ZD|F"v.
try{ $n!5JS@40
if(bFirst) Gukvd6-g9b
{ 1Vz^?t:
nFileLength = getFileSize(); i
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if(nFileLength == -1) M"p%CbcI]
{ Ev3'EA~`
System.err.println("File Length is not known!"); )h0>e9z>Y
} ND.(N'/O
else if(nFileLength == -2) DQ/rx`BG
{ >m!Z$m([J
System.err.println("File is not access!"); v9 /37AU
} '4#NVXVQm
else 3$P
{ I Ij:3HP
for(int i=0;i<nStartPos.length;i++) +IbV
{ t$VRNZ`dy
nStartPos = (long)(i*(nFileLength/nStartPos.length)); A ep](je
} T@P~A)>yo
for(int i=0;i<nEndPos.length-1;i++) WwWOic2
{ HRbv%
nEndPos = nStartPos[i+1]; wX6-WQR
} <wFmfrx+v
nEndPos[nEndPos.length-1] = nFileLength; XA>uCJf
} H$^9#{
} tQT<1Q02i
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//启动子线程 dD39?K/
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; yk4py0xVl
for(int i=0;i<nStartPos.length;i++) $39TP@?:Z)
{ .L1[Rv3
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 0(u}z
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), @C[p? ak
nStartPos,nEndPos,i); FxK!h.C.
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); +.^pAz U}R
fileSplitterFetch.start(); N:pP@o
} 9+<A7PM1T
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), VE/m|3%t
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); L">jSZW[[
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", =2rdbq6R
nEndPos = " + nFileLength); ]xb2W~
// fileSplitterFetch[nPos.length-1].start(); ume70ap}m
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//等待子线程结束 x@O)QaBN!
//int count = 0; RHvKWt
//是否结束while循环 v&9:Wd*Iz'
boolean breakWhile = false; Mkt_pr
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while(!bStop) wpQp1){%Q
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write_nPos(); @_c&lToj_
Utility.sleep(500); As^eL/m2L
breakWhile = true; cR55,DR,#W
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for(int i=0;i<nStartPos.length;i++) Q=[ IO,f
{ Abmi=]\bx
if(!fileSplitterFetch.bDownOver) U_Mag(^-
{ :]8A;`G}
breakWhile = false; } 21!b :a
break; vs$.i
} #-"C_~-MH
} ?TW? 2+
if(breakWhile) {m,LpI0wG
break; ?wIEXKI
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//count++; [;D1O;c'W.
//if(count>4) ] ONmWo77o
// siteStop(); y6G6wk;
} mL;oR4{
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System.err.println("文件下载结束!"); p>T
} Lke!VS!P&
catch(Exception e){e.printStackTrace ();} \qG` ts
} pOl6x iMx
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//获得文件长度 wIF'|"
public long getFileSize() ?AI`,*^
{ sVnpO$
int nFileLength = -1; /;}o0
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try{ v.,D,6qZ
URL url = new URL(siteInfoBean.getSSiteURL()); 2G:KaQ)
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); cvtn,Ml6
httpConnection.setRequestProperty("User-Agent","NetFox"); oHV!>K_D
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int responseCode=httpConnection.getResponseCode(); \K
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if(responseCode>=400) 4a.8n!sys
{ J/Ch
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processErrorCode(responseCode); ~qA\u5sB9@
return -2; //-2 represent access is error HMKogGTTo
} criNeKa
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String sHeader; $JK,9G[Vu
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for(int i=1;;i++) IG:CWPU
{ |Ur$H!oe?'
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); r|953e
//Utility.log(in.readLine()); {Sc*AE&Y
sHeader=httpConnection.getHeaderFieldKey(i); _znn `_N:v
if(sHeader!=null) B/JMH 1r
{ )Tn(!.
if(sHeader.equals("Content-Length")) [bBPs&7u
{ +xYg<AFS
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); `]/0&S
break; 5~i}!n
} ^|cax|>
} Gs*X> D
else e~6>8YO+7j
break; 5J6~]J
} S=`#X,Wo
} U\"FYTC
catch(IOException e){e.printStackTrace ();} reNUIDt/c
catch(Exception e){e.printStackTrace ();} (~#-J7
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Utility.log(nFileLength); !qs3fe<uh"
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return nFileLength; u$(XZ;Jg
} i6:O9Km
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