/* 2AK}D%jfc
**SiteFileFetch.java Qlh?iA
*/ J]\^QMX
package NetFox; ^PQM;"
import java.io.*; or.\)(m#(
import java.net.*; B_&^ER5j
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public class SiteFileFetch extends Thread { qZbHMTnT6
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SiteInfoBean siteInfoBean = null; //文件信息Bean ; )|nkI
long[] nStartPos; //开始位置 dz,+tR~
long[] nEndPos; //结束位置 jw4TLc7p
FileSplitterFetch[] fileSplitterFetch; //子线程对象 OjATSmZ@@
long nFileLength; //文件长度 FmI;lVF0j
boolean bFirst = true; //是否第一次取文件 <kbnu7?a*
boolean bStop = false; //停止标志 B5`;MQJ
File tmpFile; //文件下载的临时信息 u){S$</
DataOutputStream output; //输出到文件的输出流 %zflx~
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ?O7iK<5N
public SiteFileFetch(SiteInfoBean bean) throws IOException @_Sp3nWdu
{ ^ZVOql&
siteInfoBean = bean; Yb9cW\lr
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Zs73
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 8A4TAT4,
if(tmpFile.exists ()) rKIRNc#d
{ 24X=5Aj
bFirst = false; XtzOFx/
read_nPos(); yHOqzq56
} -TZ^ ~s
else "XB4yExy
{ w%2ziwgh
nStartPos = new long[bean.getNSplitter()]; UR,?! rJ^B
nEndPos = new long[bean.getNSplitter()]; ^U{P3%uZ
} ;@4sd%L8V
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} 6sy,A~e
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public void run() vv*
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{ l7~Pa0qD
//获得文件长度 2Pz 5f
//分割文件 D6:DrA:
//实例FileSplitterFetch kQ[Jo%YT?E
//启动FileSplitterFetch线程 |Eu*P
//等待子线程返回 &Ea"hd
try{ WL/5 oj
if(bFirst) R#LGFXUj
{ i'iO H|s
nFileLength = getFileSize(); #/s7\2
if(nFileLength == -1) NfqJ=9
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System.err.println("File Length is not known!"); /N%zwj/*
} Hh\
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else if(nFileLength == -2) MYu`c[$jZ
{ ydyG}XI7V
System.err.println("File is not access!"); SctJxY(}!
} 5Kee2s?*
else Q[jI=$Q)
{ n{$}#NdV
for(int i=0;i<nStartPos.length;i++) TH>,v
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); XD
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} OOfyGvs
for(int i=0;i<nEndPos.length-1;i++) []=_<]{
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nEndPos = nStartPos[i+1]; $)f"K
} i0b.AA
nEndPos[nEndPos.length-1] = nFileLength; \#2
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} {dBB{.hX
} ^8Z@^M&O"
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//启动子线程 jQ)L pjS1
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; U Q)!|@&
for(int i=0;i<nStartPos.length;i++) R~$hWu}}
{ &M$Bt} <
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), F:S"gRKz
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ^?nP$+gq
nStartPos,nEndPos,i); !*5_pGe
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); %6N)G!P
fileSplitterFetch.start(); S7Znz@
} blUY.{NN3
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), l\_x(BH
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); m^'~&!ba
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", o:H'r7N
nEndPos = " + nFileLength); 5
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// fileSplitterFetch[nPos.length-1].start(); ]I8]mUiUH
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//等待子线程结束 x
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//int count = 0; 3`xsK[
//是否结束while循环 jmSt?M0.xV
boolean breakWhile = false; #s*k|
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while(!bStop) K[*h+YO
{ Shs')Zsbv
write_nPos(); \zBd<H4S:
Utility.sleep(500); ftxTX3X
breakWhile = true; z}iSq$
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for(int i=0;i<nStartPos.length;i++) 7&h\l6}Yh
{ xC'mPcU8
if(!fileSplitterFetch.bDownOver) q)vK`\Y
{ ) sRN!~
breakWhile = false; (v]P<3%
break; U&`6&$]
} 5[nmP95YK
} Wux 0RF&
if(breakWhile) lK "'nLL
break; )4@M`8
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//count++; PL9<*.U"=
//if(count>4) *3!(*F@M,
// siteStop(); dr.**fGYde
} (Z5qf
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System.err.println("文件下载结束!"); JIVo=5c}
} +I*k0"gj6
catch(Exception e){e.printStackTrace ();} h]<GTWj
} _cR6ik zW(
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//获得文件长度 w8G7Jy
public long getFileSize() BQ).`f";d
{ R_t~UTfI;
int nFileLength = -1; 2@rp<&s
try{ rFf:A-#l
URL url = new URL(siteInfoBean.getSSiteURL()); hJecCOA)'
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); >9 q]>fJ
httpConnection.setRequestProperty("User-Agent","NetFox"); G!nl'5|y
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int responseCode=httpConnection.getResponseCode(); km9Gwg/zT
if(responseCode>=400) 5BrU'NF
{ lq~GcM
processErrorCode(responseCode); B.V?s,U
return -2; //-2 represent access is error t-'I`I
} ,NjX&A@
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String sHeader; d#E(~t(^
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for(int i=1;;i++) bjuYA/w<
{ r5D jCV"
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); <9=zP/Q
//Utility.log(in.readLine()); X'YfjbGo
sHeader=httpConnection.getHeaderFieldKey(i); qsD?dHi7
if(sHeader!=null) !>CE(;E>z
{ V+Y|4Y&
if(sHeader.equals("Content-Length")) R
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{ XPar_8I
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); d^ 2u}^kG
break; s>LA3kT
} uCY(:;[<
} F~tm`n8Z
else @~JB\j9
break; P]|J?$1K
} ) ~ l\
} 1[26w_B3
catch(IOException e){e.printStackTrace ();} >`<Ued
catch(Exception e){e.printStackTrace ();} >L#];|
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Utility.log(nFileLength); &mX5&e
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return nFileLength; *>EI2HX
} 8dV.nO
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//保存下载信息(文件指针位置) f 1sy9nQs
private void write_nPos() 5oVLv4Z9u
{ %M|Z}2qv
try{ 8:Z@ lp^
output = new DataOutputStream(new FileOutputStream(tmpFile)); KC&H*
output.writeInt(nStartPos.length); SNQz8(O
for(int i=0;i<nStartPos.length;i++) 59&T