/* dO=<3W
**SiteFileFetch.java w9 NUm
*/ 3RD Q{&J:
package NetFox; Bg3^BOT
import java.io.*; v4&*iT
import java.net.*; f; 22viE
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public class SiteFileFetch extends Thread { jj^CW"IB
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SiteInfoBean siteInfoBean = null; //文件信息Bean 29E^]IL?
long[] nStartPos; //开始位置 NZl0sX.:
long[] nEndPos; //结束位置 ;%U`P8b!
FileSplitterFetch[] fileSplitterFetch; //子线程对象 @M(vaJB8u
long nFileLength; //文件长度 Gf"/fpeQx
boolean bFirst = true; //是否第一次取文件 6L2.88 i
boolean bStop = false; //停止标志 $`uL^ hlj]
File tmpFile; //文件下载的临时信息 q
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DataOutputStream output; //输出到文件的输出流 Q{>{ e3z}
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) F`3I~(
public SiteFileFetch(SiteInfoBean bean) throws IOException 8U-}%D<a
{ [1E u6X6
siteInfoBean = bean; b&!X#3(KT
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Pp}j=$&j\
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); < B'BlqTS
if(tmpFile.exists ()) HK }C<gg
{ !#>{..}}3
bFirst = false; n\d-^ml
read_nPos(); wL}=$DN
} ATwPfo8jx@
else d/"e3S1
{ ^Zg"`&E
nStartPos = new long[bean.getNSplitter()]; chxO*G
nEndPos = new long[bean.getNSplitter()]; HQ]g{JVld\
} l2$6ojpo
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} 1}'|HAu
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public void run() L g-Sxz}P!
{ 1{_;`V
//获得文件长度 h\jwXMi,tj
//分割文件 <D=U= 5
//实例FileSplitterFetch I>:M1Yc0
//启动FileSplitterFetch线程 ,\ov$biL
//等待子线程返回 dZ_Hj X7
try{ 8M!If
if(bFirst) FL-sXg
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nFileLength = getFileSize(); OTSbhI'v
if(nFileLength == -1) cR_85
{ '`^`NI`
System.err.println("File Length is not known!"); 1^$ vmULj
} {4\(HrGNk
else if(nFileLength == -2) kbiMqiPG
{ :Fu.S1j$
System.err.println("File is not access!"); h9$Ov`N(%
} {|a=
else HOBM?|37CU
{ (@[c;+x
for(int i=0;i<nStartPos.length;i++) 9F@ Q
{ n}}$-xl
nStartPos = (long)(i*(nFileLength/nStartPos.length)); )BmK'H+l
} }HRM6fR1S
for(int i=0;i<nEndPos.length-1;i++) iW9G0Ay
{ { LZ` _1D
nEndPos = nStartPos[i+1]; %9C_p]P*
} 09HlL=0q
nEndPos[nEndPos.length-1] = nFileLength; *;5P65:u$>
} fIWOo >)D
} cA
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//启动子线程 T 5$db-^
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 2M1}`H\
for(int i=0;i<nStartPos.length;i++) GAI(=
{ q&]I
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), %a$ l%8j&
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ~|QhWgq
nStartPos,nEndPos,i); .?|pv}V
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); W"MwpV
fileSplitterFetch.start(); *.qm+#8W
} cdY|z]B
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), js^+ {~
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); MROe"Xj
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 2SVBuV/R
nEndPos = " + nFileLength); VI_8r5o
// fileSplitterFetch[nPos.length-1].start(); 3V2dN)\
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//等待子线程结束 U|yXJ.Z3
//int count = 0; I5Vp%mCY
//是否结束while循环 QmxI;l
boolean breakWhile = false; Pk)>@F<
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while(!bStop) 3}hJ`xQ
{ ePLpGT
write_nPos(); }Y9= 3X
Utility.sleep(500); $DS|jnpV
breakWhile = true; EIdEXAC(
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for(int i=0;i<nStartPos.length;i++) bSJ@
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{ ?E +[
if(!fileSplitterFetch.bDownOver) !DU4iq_.
{ z.Y`"B'j`
breakWhile = false; p#;I4d G
break; Q7#Yw"#G!
} b;xn0sDn#
} q#C;iK4
if(breakWhile) Bl$Hg,in-
break; [[FDt[ l4
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//count++; CqFk(Td9-D
//if(count>4) +%sMd]$,n
// siteStop(); ^K3Bn
} Lqa|9|!
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System.err.println("文件下载结束!"); )JA9bR
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} |X47&Y
catch(Exception e){e.printStackTrace ();} }ebu@)r
} o$q})!
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//获得文件长度 nVyV]'-z
public long getFileSize() 1[:tiTG|C
{ _jWGwO
int nFileLength = -1; a1dkB"Zp.p
try{ F<0GX!p4u
URL url = new URL(siteInfoBean.getSSiteURL()); bDtb"V8e
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); )dh_eqnX
httpConnection.setRequestProperty("User-Agent","NetFox"); Q ym=L(X
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int responseCode=httpConnection.getResponseCode(); |SX31T9rG
if(responseCode>=400) p N+1/m,
{ S;tv4JY
processErrorCode(responseCode); )0XJOm
return -2; //-2 represent access is error ~5:-;ZbZ
} Qv
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String sHeader; {Rtl<W0
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for(int i=1;;i++) -'Oq.$Qq
{ mO^)k
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); _>u0vGF-
//Utility.log(in.readLine()); ,V`[;~49
sHeader=httpConnection.getHeaderFieldKey(i); W.m2`] &