/* u,So+%
**SiteFileFetch.java B[GC@]HE
*/ p%>sc
package NetFox; 8%#8PLB2
import java.io.*; X]p3?"7
import java.net.*; OW4j!W
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public class SiteFileFetch extends Thread { # dUKG8-HJ
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SiteInfoBean siteInfoBean = null; //文件信息Bean BX0lk
long[] nStartPos; //开始位置 ]O"f %
long[] nEndPos; //结束位置 M/=36{,w-
FileSplitterFetch[] fileSplitterFetch; //子线程对象 ,r w4Lo
long nFileLength; //文件长度 /B@{w-N
boolean bFirst = true; //是否第一次取文件 a31e.36g
boolean bStop = false; //停止标志 !Ud'(iGa
File tmpFile; //文件下载的临时信息 l5{60$g
DataOutputStream output; //输出到文件的输出流 UrizZ5a
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) @F<{/|P
public SiteFileFetch(SiteInfoBean bean) throws IOException Wn(!6yid
{ U]sAYp^$
siteInfoBean = bean; SWV*w[X<X
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); U.Mfu9}#:
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); )OV0YfO
if(tmpFile.exists ()) [! $NTt_
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bFirst = false; Xkhd"Axi
read_nPos(); a.Z@Z!*
} noxJr/A]
else eut2x7Z(c
{ o:AfEoH"~
nStartPos = new long[bean.getNSplitter()]; %;k Hnl
nEndPos = new long[bean.getNSplitter()]; `s
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} qg
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} kP
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public void run() Ik0g(-d
{ (?|M'gZ
//获得文件长度 \"a{\E,{;
//分割文件 aV'bI
//实例FileSplitterFetch q*3OWr
//启动FileSplitterFetch线程 {JgY-#R?{(
//等待子线程返回 gm-[x5O"
try{ d&j
if(bFirst) ukSv70Ev
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nFileLength = getFileSize(); F}nwTras
if(nFileLength == -1) 7Bp7d/R-
{ H#SQ>vyAV
System.err.println("File Length is not known!"); A`Z/B[)
} M/?,Qii
else if(nFileLength == -2) uAn}qrqE9
{ 5daq}hsQs
System.err.println("File is not access!"); @L3XBV2
} 2FIL@f|\7z
else y/Xs+ {x
{ 'k,2*.A
for(int i=0;i<nStartPos.length;i++) la3B`p
{ jzbq{#
nStartPos = (long)(i*(nFileLength/nStartPos.length)); R@o&c%K"
} 'o-4'
for(int i=0;i<nEndPos.length-1;i++) D@bGJc0
{ 0B`X056|"|
nEndPos = nStartPos[i+1]; *S.U8;*Xj
} 5?7AzJl>
nEndPos[nEndPos.length-1] = nFileLength; Du+W7]yCl
} puC91
} ;,&cWz
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//启动子线程 FH~:&;
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; !T`oHs
for(int i=0;i<nStartPos.length;i++) Xqf,_I=V
{ |THpkfW
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), yaj dRU
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ` =>}*GS
nStartPos,nEndPos,i); M13HD/~O
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); VzP az\e
fileSplitterFetch.start(); -'&/7e6>y
} [;u#79aE
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), MR#*/Iw~
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ))"gWO
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 3:+9H}Q
nEndPos = " + nFileLength); %_OjmXOfe
// fileSplitterFetch[nPos.length-1].start(); ^#Ii=K-[^
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//等待子线程结束 ^jL '*&l
//int count = 0; R
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//是否结束while循环 $h#sb4ek
boolean breakWhile = false; o`bc/3!
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while(!bStop) mO>L]<O
{ Pyo|Sgk
write_nPos(); b:dN )m
Utility.sleep(500); |toP86
breakWhile = true; Cr.YSWg)4
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for(int i=0;i<nStartPos.length;i++) 4{P+p!4
{ 2cMCZuO
if(!fileSplitterFetch.bDownOver) L+am-k:T~
{ 3Ua?^2l
breakWhile = false; NAR6q{c
break; :viW
} (> al-vZ6A
} }%|ewy9|CW
if(breakWhile) 2Rk}ovtD[
break; s2<!Zb4
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l=~!'1@L}
//count++; YF5}~M ymF
//if(count>4) MEDh
// siteStop(); /F0q8j0
} PYkhY;*
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System.err.println("文件下载结束!"); 5hrI#fpOR
} H"A%mrb
catch(Exception e){e.printStackTrace ();} MGg(d
} ]fyfL|(;
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//获得文件长度 }p)K6!J0
public long getFileSize() @oXGa>Ru
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int nFileLength = -1; ula-o)S
try{ DR#" 3
URL url = new URL(siteInfoBean.getSSiteURL()); 5UEZpxnv
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ~7]V^tG
httpConnection.setRequestProperty("User-Agent","NetFox"); *8}b&4O~
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int responseCode=httpConnection.getResponseCode(); ^6s im 2
if(responseCode>=400) c!6D{(sfh
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processErrorCode(responseCode); n]4E>/\
return -2; //-2 represent access is error =xI;D,@S
} IKD{3cVL
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String sHeader; F? #3
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for(int i=1;;i++) RN$vKJk
{ ,B <\a
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); yaUtDC.|
//Utility.log(in.readLine()); \v2!5z8|
sHeader=httpConnection.getHeaderFieldKey(i); E>~R P^?Uz
if(sHeader!=null) z0 "DbZ;d
{ _7Y
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if(sHeader.equals("Content-Length")) kCBtK?g
{ #AD_EN9
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); T+Oqd\05.+
break; 1Bh"'9-!JT
} ho\1[xS
} fM=o?w6v
else Z\!,f.>g
break; D!j/a!MaKk
} xl}rdnf}
} S=@+qcI
catch(IOException e){e.printStackTrace ();} }k^uup*{
catch(Exception e){e.printStackTrace ();} .;? Bni
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Utility.log(nFileLength); dY1t3@E
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return nFileLength; q<YM,%mgj
} B%F]K<
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//保存下载信息(文件指针位置) iq&3S 0
private void write_nPos() oi #B7
{ wuqe{?
try{ (NJ{>@&
output = new DataOutputStream(new FileOutputStream(tmpFile)); 2#wnJdr6E
output.writeInt(nStartPos.length); bWe2z~dP
for(int i=0;i<nStartPos.length;i++) w\buQ6pR)
{ B,>02EZ
// output.writeLong(nPos); V DFgu
output.writeLong(fileSplitterFetch.nStartPos); ^C>kmo3J
output.writeLong(fileSplitterFetch.nEndPos); !:(+#
} qGinlE&\
output.close(); ~D52b1f
} }M07-qIX{
catch(IOException e){e.printStackTrace ();} d4Uw+3ikW
catch(Exception e){e.printStackTrace ();} j7I=2xnTWu
} -gn0@hS0
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//读取保存的下载信息(文件指针位置) 'Ru(`"
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private void read_nPos() qCs/sW
{ I%T+H[,
try{ pbMANZU[
DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); (,Y[2_Zv
int nCount = input.readInt(); -&/?&{Q0
nStartPos = new long[nCount]; (i&+= +"wn
nEndPos = new long[nCount]; XC<fNK
for(int i=0;i<nStartPos.length;i++) l+ }=D@l
{ $AK
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nStartPos = input.readLong(); >y%H2][
nEndPos = input.readLong(); w2LnY1A
} y_X6{}Ke
input.close(); 7[ ovEE54
} n
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catch(IOException e){e.printStackTrace ();} =s\$i0A2
catch(Exception e){e.printStackTrace ();} $|$@?H>K
} >S5J^c
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private void processErrorCode(int nErrorCode) (5T>`7g8
{ 0R?1|YnB
System.err.println("Error Code : " + nErrorCode); (HNc9QVC'W
} e!u]l
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//停止文件下载 **q8vhJM
public void siteStop() fUw:jExz
{ kowS| c#
bStop = true; f;E#CjlTL
for(int i=0;i<nStartPos.length;i++) J*@ pM
fileSplitterFetch.splitterStop(); ^t0!Dbx3SE
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} jCqz^5=$
} 1RAkqw<E
//负责部分文件的抓取 #Xg;E3BM
**FileSplitterFetch.java P(T-2Ux6
*/ 5/.W-Q\pl}
package NetFox; \h
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import java.io.*; TQR5V\{&%
import java.net.*; CJ<nUIy'z
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public class FileSplitterFetch extends Thread { k*1Lr\1
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String sURL; //File URL zTng]Mvx
long nStartPos; //File Snippet Start Position a`wjZ"}'[
long nEndPos; //File Snippet End Position [ycX)iM
int nThreadID; //Thread's ID |/,SNE
boolean bDownOver = false; //Downing is over "uH>S+%|b
boolean bStop = false; //Stop identical 0i~U(qoI
FileAccessI fileAccessI = null; //File Access interface l7QxngWw
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public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException y
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{ R ]Ev=V'U
this.sURL = sURL; fe\lSGmf
this.nStartPos = nStart; :9&