/* QW@`4W0F
**SiteFileFetch.java 1QuR7p
*/ v|r#
package NetFox; klC48l
import java.io.*; +Xr87x;
import java.net.*; UazUr=|e
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public class SiteFileFetch extends Thread { bcprhb
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SiteInfoBean siteInfoBean = null; //文件信息Bean ]u O|YLWp
long[] nStartPos; //开始位置 }W R?n
long[] nEndPos; //结束位置 ;=ERm=
FileSplitterFetch[] fileSplitterFetch; //子线程对象 3H/4$XJB
long nFileLength; //文件长度 <Okl.Iz>
boolean bFirst = true; //是否第一次取文件 Jro%zZle
boolean bStop = false; //停止标志 -u'BK@;
File tmpFile; //文件下载的临时信息 M6b6lhg
DataOutputStream output; //输出到文件的输出流 )eSD5hOI)
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 1:iT#~n
public SiteFileFetch(SiteInfoBean bean) throws IOException ?`D/#P
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siteInfoBean = bean; V\o&{7!
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 0j|JyS:}G
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); w!^{Q'/,Q
if(tmpFile.exists ())
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{ iYxpIqWw
bFirst = false; 5PCKBevV
read_nPos(); gkDlh{
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else `~3y[j]kO
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nStartPos = new long[bean.getNSplitter()]; APu cA
nEndPos = new long[bean.getNSplitter()]; '&$xLZ8
} ZiOL7#QWX
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} R k).D6
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public void run() aC2\C=ru_
{ #\fxU:z~r
//获得文件长度 VZArdXTP
//分割文件 n$T'gX#5
//实例FileSplitterFetch <U()
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//启动FileSplitterFetch线程 xT$9M"
//等待子线程返回 ^8yhx-mgb
try{ ;4 ON
if(bFirst) gNG_,+=!
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nFileLength = getFileSize(); r|tTDKGQ
if(nFileLength == -1) XZFM|=%X
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System.err.println("File Length is not known!"); 2U;ImC1g
} tk
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else if(nFileLength == -2) eO:wx.PW
{ IZkQmA=
System.err.println("File is not access!"); -?$Hr\
} z!GLug*j`
else qEoa%O
{ ?xuhN
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for(int i=0;i<nStartPos.length;i++) J,k|_JO
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); .UuCTH;6`
} n^AQ!wC
for(int i=0;i<nEndPos.length-1;i++) 2& l~8,
{ hs"=>(P)
nEndPos = nStartPos[i+1]; "NamP\hj
} hkq[xgX
nEndPos[nEndPos.length-1] = nFileLength; X_eh+>D
} =i/7&gC
} }t[?g)"M#-
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//启动子线程 KPOr8=Rc
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; _cY!\'
for(int i=0;i<nStartPos.length;i++)
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), dt(#|8i%
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), Rx22W:S=C.
nStartPos,nEndPos,i); iwl\&uNQU
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ljij/ C=
fileSplitterFetch.start(); DhwFD8tT
} l25E!E-'b
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), n%>c4*t
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); (gv1f
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", A@X&dy
nEndPos = " + nFileLength); .*N,x0B(
// fileSplitterFetch[nPos.length-1].start(); E K)7g~
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//等待子线程结束 xi.L?"^/!
//int count = 0; y-TS?5Dr]
//是否结束while循环 R)3P"sGuN
boolean breakWhile = false; rVx%"_'*-
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while(!bStop) =W6AUN/%p
{ RY(\/W#$
write_nPos(); Q}a 1P8?S
Utility.sleep(500); tf?u ;n
breakWhile = true; WdGjvs
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for(int i=0;i<nStartPos.length;i++) J3oj}M*
{ DL5`A?/
if(!fileSplitterFetch.bDownOver) 1Y"[Qs]"mU
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breakWhile = false; ^gwVh~j
break; ]}_@!F)
} {jX
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} gF@51K
if(breakWhile) 5h9`lS2
break; AS34yM(h
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//count++; "(6]K}k@
//if(count>4) I@ l'Fx
// siteStop(); $q]:m+Fm
} ?-
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System.err.println("文件下载结束!"); xr uQ=Q
} tK3.HvD
catch(Exception e){e.printStackTrace ();} )SMS<J
} &wbe^Wp
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//获得文件长度 jlV~-}QKb7
public long getFileSize() h2 2-vX
{ T-)Ur/qp
int nFileLength = -1; @;iW)a_M
try{ 6% @@~"
URL url = new URL(siteInfoBean.getSSiteURL()); }+KSZ,
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); n{dl-P
httpConnection.setRequestProperty("User-Agent","NetFox"); fLj#+h-!
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int responseCode=httpConnection.getResponseCode(); `B+P$K<