/* f
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**SiteFileFetch.java !Dc?9W!b
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package NetFox; =?Ry,^=b
import java.io.*; =55)|$hgD
import java.net.*; ])y)]H#{
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public class SiteFileFetch extends Thread { JUw|nUnl?
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SiteInfoBean siteInfoBean = null; //文件信息Bean )Mq4p'*A[
long[] nStartPos; //开始位置
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long[] nEndPos; //结束位置 X_-/j.
FileSplitterFetch[] fileSplitterFetch; //子线程对象 "d/54PKWx
long nFileLength; //文件长度 T#rUbi>""
boolean bFirst = true; //是否第一次取文件 &O+S[~
boolean bStop = false; //停止标志 |b@`ykD
File tmpFile; //文件下载的临时信息 tPiC?=4R
DataOutputStream output; //输出到文件的输出流 v89tV9O)
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) w\
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public SiteFileFetch(SiteInfoBean bean) throws IOException M GC=L .
{ G:+D1J]
siteInfoBean = bean; %}b
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); vB7]L9=@"
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); }c8e t'HYf
if(tmpFile.exists ()) %m lH
{ |(x%J[n0+
bFirst = false; SgQmR#5
read_nPos(); U{EcV%C2
} -"Kjn`8
else 71(ppsHk
{ Ld:-S,2
nStartPos = new long[bean.getNSplitter()]; a$uDoi
nEndPos = new long[bean.getNSplitter()]; 6G4~-_
} [D|Uwq
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} zwUZ*Se
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public void run() e#6H[t
{ NB3+kf ,
//获得文件长度 [Ketg
//分割文件 C.=%8|Zy
//实例FileSplitterFetch }rVLWt
//启动FileSplitterFetch线程 C]ho7qC
//等待子线程返回 qzY:>>d'
try{ s Fk{Tv@Yz
if(bFirst) 'u PI~l`g
{ JvT#Fxj k
nFileLength = getFileSize(); {IB4%,qT
if(nFileLength == -1) P5XUzLV
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{ 1(aib^!B
System.err.println("File Length is not known!"); MkZoHzg}c
} Xa}y.qH
else if(nFileLength == -2) yYJ +vs
{ }+NlYD:qF
System.err.println("File is not access!"); 29@m:=-}7
} s*CBYzOm
else Ki:98a$
{ AA|G&&1y
for(int i=0;i<nStartPos.length;i++) 9Z2aFW9
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); H-&
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} xjDaA U,
for(int i=0;i<nEndPos.length-1;i++) vKbGG
{ :d<F7`k
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nEndPos = nStartPos[i+1]; yF
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} t]t(/x#
nEndPos[nEndPos.length-1] = nFileLength; 'Um\m
} <ihJp^kgQ
} r_^]5C\
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//启动子线程 XX1Iw {o9:
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; w(%$~]h
for(int i=0;i<nStartPos.length;i++) 0a$hK9BH
{ ewYk>
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), KmF+3g~#s
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), k
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nStartPos,nEndPos,i); z\J#d 1e
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); &C/,~pJ1S
fileSplitterFetch.start();
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} K]U8y$^
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), tdi}P/x
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ,-1taS
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", }WNgKw
nEndPos = " + nFileLength); ]waCYrG<sY
// fileSplitterFetch[nPos.length-1].start(); <ot%>\C
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//等待子线程结束 g3w-Le&T
//int count = 0; s\
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//是否结束while循环 _l]rt
boolean breakWhile = false; W<H^V"^
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while(!bStop) 0j-;4>p
{ 4mWT"T-8
write_nPos(); q'[yYPDX5x
Utility.sleep(500); K@=_&A!
breakWhile = true; -QydUr/(o
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for(int i=0;i<nStartPos.length;i++) u $T'#p1
{ /#4BUfY
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if(!fileSplitterFetch.bDownOver) A.S:eQvS%
{ q1M16qv5
breakWhile = false; }15ooe%
break; 0'y3iar
} c:`&QDF
} 9y"\]G77E
if(breakWhile) ,OO0*%
break; r`=!4vY2
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//count++; cM+s)4TPL
//if(count>4) cW, 6MAQo
// siteStop(); R$40cW3`
}
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System.err.println("文件下载结束!"); 0 Pa\:^/6
} RiAY>:
catch(Exception e){e.printStackTrace ();} `Df)wNN1
} ~%:23mIk
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//获得文件长度 7b[vZNi_
public long getFileSize() }q@Jh*
{ ,`< [ej
int nFileLength = -1; K1Wiiw
try{ ijWn,bj
URL url = new URL(siteInfoBean.getSSiteURL()); ,U/ZG|=v
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); j'JNQo;q
httpConnection.setRequestProperty("User-Agent","NetFox"); DW~< 8
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int responseCode=httpConnection.getResponseCode(); ng[ZM);
if(responseCode>=400) R`|GBVbv
{ [2cG 7A
processErrorCode(responseCode); sHulaX{
return -2; //-2 represent access is error b]U%|bp
} My!<_Hp-W
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String sHeader; p}
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for(int i=1;;i++) A#j'JA>_
{ ff9D{ $V5
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); >*%mJX/F
//Utility.log(in.readLine()); [MKL>\U
sHeader=httpConnection.getHeaderFieldKey(i); m [FH>
if(sHeader!=null) Cuq=>J
{ ?F9:rUyN
if(sHeader.equals("Content-Length")) r9uuVxBD
{ !bG%@{W T
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); />zE$)'M
break; a:tCdnK/
} 7a}vb@
} iWZrZ5l
else kMz^37IFMG
break; s`G3SE
} KfsU RTZ
} Ojf.D6nY
catch(IOException e){e.printStackTrace ();} ^?H3:CS
catch(Exception e){e.printStackTrace ();} Em8C +EM
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Utility.log(nFileLength); Rj9YAW$
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return nFileLength;
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} r-s.i+\
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//保存下载信息(文件指针位置) ch}t++`l]
private void write_nPos() Kuz
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try{ B#_<?
output = new DataOutputStream(new FileOutputStream(tmpFile)); Vs)Pg\B?
output.writeInt(nStartPos.length); #?Z>o16,u
for(int i=0;i<nStartPos.length;i++) rn7eY
{ {]/}3t
// output.writeLong(nPos); R(sPU>`MX
output.writeLong(fileSplitterFetch.nStartPos); ?6F\cl0.
output.writeLong(fileSplitterFetch.nEndPos); 7Rf${Wv0
} l#_(suo64
output.close(); wtCz%!OYB
} P"LbWZ6Nj
catch(IOException e){e.printStackTrace ();} 6;g"`l51
catch(Exception e){e.printStackTrace ();} %(IkUD
} 9"3 7va
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//读取保存的下载信息(文件指针位置) gUs.D_*
private void read_nPos() 0?KY9
{ T\VKNEBo
try{ SM2QF
DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); P\B ]><!ep
int nCount = input.readInt(); /d*0+m8
nStartPos = new long[nCount]; F/FUKXxx
nEndPos = new long[nCount]; JgJ4RmH-
for(int i=0;i<nStartPos.length;i++) 'a`cK;X9F
{ YQWGv,47\
nStartPos = input.readLong(); )A}u)PH4O
nEndPos = input.readLong(); dC$z q~q
} "#d>3M_
input.close(); RCSG.*% %I
} 0>?%{Xy
catch(IOException e){e.printStackTrace ();} d|!FI/
catch(Exception e){e.printStackTrace ();} N,9W18
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} [=[>1<L>
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private void processErrorCode(int nErrorCode) p0jQQg
{ n
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System.err.println("Error Code : " + nErrorCode); #d,+87]\=
} ,iKL
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//停止文件下载 1PD{m{
public void siteStop() t'e1r&^:r~
{ .tv'`
bStop = true; /gWaxR*m
for(int i=0;i<nStartPos.length;i++) 50#iC@1
fileSplitterFetch.splitterStop(); uHj"nd13
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