/* {Z#=ppvs
**SiteFileFetch.java FvDi4[F#
*/ U3|9a8^H
package NetFox; @cn8 m
import java.io.*; _z53r+A
import java.net.*; s/Q8(sF5
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public class SiteFileFetch extends Thread { 5?|yYQM0tK
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SiteInfoBean siteInfoBean = null; //文件信息Bean 6!v$"u|[!'
long[] nStartPos; //开始位置 lbMok/a2o
long[] nEndPos; //结束位置 V:2{LR<R8
FileSplitterFetch[] fileSplitterFetch; //子线程对象 F-GH?sfvi
long nFileLength; //文件长度 c N~F32<
boolean bFirst = true; //是否第一次取文件
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boolean bStop = false; //停止标志 h/..cVD,K
File tmpFile; //文件下载的临时信息 &)!4rABn
DataOutputStream output; //输出到文件的输出流 64t:
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 8Od7e`
public SiteFileFetch(SiteInfoBean bean) throws IOException t_id/
{ q:9CFAX0=
siteInfoBean = bean; \ `|
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); G x{G}9
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ,Gy2$mglB
if(tmpFile.exists ()) ]BfJ~+ N
{ 'k/:3?R
bFirst = false; EOo,olklC
read_nPos(); S>y}|MG
} )3)x/WM
else smHQ'4x9
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nStartPos = new long[bean.getNSplitter()]; Ys8D|HIk
nEndPos = new long[bean.getNSplitter()]; .@@&q4=&
} VMw[M^
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} ]fJ9.Js
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public void run() dBkw.VOW
{ &OD)e@Tc
//获得文件长度 5SKj% %B2,
//分割文件 ," ~ew ,
//实例FileSplitterFetch jC7`_;>=
//启动FileSplitterFetch线程 "b5:6\
//等待子线程返回 cXu"-/
try{ ~YO99PP
if(bFirst) 'N#,,d/G
{ 57*`y'CW
nFileLength = getFileSize(); 1 i #
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if(nFileLength == -1) IF-g %
{ ~LqjWU
System.err.println("File Length is not known!"); QyN<o{\FD!
} 4sOo>.<x
else if(nFileLength == -2) LRl2@&z<
{ 1,q&A
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System.err.println("File is not access!"); C,$$bmS=
} f/Cf2
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else KLi&TmIB
{ _Eo$V&
for(int i=0;i<nStartPos.length;i++) 4,kdP)Md$
{ *m$P17/C
nStartPos = (long)(i*(nFileLength/nStartPos.length)); Bbk=0+ ^8I
} ;G !JKg
for(int i=0;i<nEndPos.length-1;i++) *V}T}nK7
{ ^)|8N44O
nEndPos = nStartPos[i+1]; NVqJN$z
} b7&5>Q/g
nEndPos[nEndPos.length-1] = nFileLength; v%8.o%G
} O~Eju
} ?86q8E3;&
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//启动子线程 CHxu%-g
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; X.^S@3[
for(int i=0;i<nStartPos.length;i++) ?J[m)Uo/K
{ x,)|;HXm
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), oT9dMhx8
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), tS|gQUF17
nStartPos,nEndPos,i); VHwAO:+-
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); UqJ}5{rt
fileSplitterFetch.start(); Vu6$84>-,
} -2Bkun4Pt
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), J@$h'YUF
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); !$}:4}56F
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", OUo N
nEndPos = " + nFileLength); ,|:TML
// fileSplitterFetch[nPos.length-1].start(); M.b1=Y
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//等待子线程结束 RRXnj#<g
//int count = 0; 9@'^}c#
//是否结束while循环 #j!RbW
boolean breakWhile = false; 6}b1*xQ
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while(!bStop) !'yCB9]O
{ +MHsdeGU1W
write_nPos(); d2cslDd
Utility.sleep(500); )Q:.1Hgl
breakWhile = true; TU-aL
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for(int i=0;i<nStartPos.length;i++) Ii*tux!S
{ cOhx
if(!fileSplitterFetch.bDownOver) c~,OU7[
{ _f^JXd,7v
breakWhile = false; &
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break; no~Yet+<"
} NFYo@kX>
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} $9~6M*
if(breakWhile) Z{Si`GA
break; 3vcKK;qCB
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//count++; nu=yE$BN{
//if(count>4) Ll2yJ
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// siteStop(); jUtFDw
} 6!QY)H^j9,
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System.err.println("文件下载结束!"); hN#A3FFo L
} %$'YP
catch(Exception e){e.printStackTrace ();} d9qA\ [
} ?.*^#>-
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//获得文件长度 f3[/zcm;
public long getFileSize() ,\%qERk
{ GC#s;X
int nFileLength = -1; < 2mbR
try{ zyHHz\{
URL url = new URL(siteInfoBean.getSSiteURL()); )qq5WShMJ
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); NKy Ksu
httpConnection.setRequestProperty("User-Agent","NetFox"); 8.Z9 i
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int responseCode=httpConnection.getResponseCode(); j=],n8_i
if(responseCode>=400) ;A\SbLM
{ GW;\3@o
processErrorCode(responseCode); #a$k3C
return -2; //-2 represent access is error w4<n=k
} Zf,9 k".'C
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String sHeader; n2p(@
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