/* {k?Y:
**SiteFileFetch.java :1 Fm~'
*/ ~g|e?$j
package NetFox; &p;};n
import java.io.*; 0E\R\KO$>
import java.net.*; K:y q^T7
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public class SiteFileFetch extends Thread { \|62E):i1
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SiteInfoBean siteInfoBean = null; //文件信息Bean >D:S)"
long[] nStartPos; //开始位置 z%Z}vWn
long[] nEndPos; //结束位置 mH{cGu?
FileSplitterFetch[] fileSplitterFetch; //子线程对象 VpVw:Rh>
long nFileLength; //文件长度 LG<lZ9+y
boolean bFirst = true; //是否第一次取文件 hq,;H40%/
boolean bStop = false; //停止标志 TJ;v}HSo
File tmpFile; //文件下载的临时信息 Q.yKbO<[
DataOutputStream output; //输出到文件的输出流 ^_+ks/
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) {eZj[*P
public SiteFileFetch(SiteInfoBean bean) throws IOException rXm!3E6JL
{ M9&tys[ KX
siteInfoBean = bean; (B$FX<K3
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); +]
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); HJcZ~5jf
if(tmpFile.exists ()) (QRl
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{ ]@8=e'V
bFirst = false; vy#c(:UQR
read_nPos(); ~IqT>
} ;XtDz
else WX=+\`NyJ(
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nStartPos = new long[bean.getNSplitter()]; KdR&OBm
nEndPos = new long[bean.getNSplitter()]; unX^ MPpw
} ?Jr<gn^D
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public void run() MnS"M[y3
{ _0f[.vN
//获得文件长度 Z*QRdB%,
//分割文件 Y$Ke{6 4
//实例FileSplitterFetch y@Or2bO#
//启动FileSplitterFetch线程 d{trO;%#f
//等待子线程返回 g Q9ff,
try{ v6n(<0:
if(bFirst) .iYg RW=T
{ n$?oZ*;
nFileLength = getFileSize(); Lf:Z
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if(nFileLength == -1) .)GVb<w
{ V&nN/CF
System.err.println("File Length is not known!"); 4HHf3j!5
} `^}9= Q'r
else if(nFileLength == -2) :ox CF0Y
{ @gj5'
System.err.println("File is not access!"); zKutx6=aj
} i,HAXPi
else P}I*SV0
{ Pn#Lymxh_a
for(int i=0;i<nStartPos.length;i++) :Rn9rdX
{ KJ~pY<a?
nStartPos = (long)(i*(nFileLength/nStartPos.length)); {8MF!CG]
} OG+ $F
for(int i=0;i<nEndPos.length-1;i++) 5 9vGLN!L
{ pi{ahuI#_o
nEndPos = nStartPos[i+1]; Pm_=
} 2P=;r:cx
nEndPos[nEndPos.length-1] = nFileLength; d0^2<
} %xRS9A4
} g;h&Xkp
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//启动子线程 24Fxx9g
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 34=0.{qn
for(int i=0;i<nStartPos.length;i++) 5-*]PAC
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), j$^]WRt
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), K0\WN"ua;
nStartPos,nEndPos,i); rBf?kDt6l
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); AL0Rn e N
fileSplitterFetch.start(); 'w2;oO
} (AYD@
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), "->:6Oe2
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); `{Jb{L@f
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 8(}sZ)6
nEndPos = " + nFileLength); )YFs
// fileSplitterFetch[nPos.length-1].start(); vF&b|V+,
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//等待子线程结束 F?=u:
//int count = 0; +mQSlEo
//是否结束while循环 lI 1lP 1
boolean breakWhile = false; L
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while(!bStop) G$ FBx
{ n lW&(cH
write_nPos(); L|LTsRIq
Utility.sleep(500); e`r;`a&
breakWhile = true; y~7lug
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for(int i=0;i<nStartPos.length;i++) ]B4mm__
{ sd53 _sV
if(!fileSplitterFetch.bDownOver) p( *3U[1
{ _GqE'VX
breakWhile = false; }=a4uCE
break; fP58$pwu
} {M/c!
} lIg2iun[n
if(breakWhile) )_cv}.xe
break; s~
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//count++; 31& .Lnq
//if(count>4) Nl`ry2"<
// siteStop(); 070IBAk}_
} Q/)ok$A&
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System.err.println("文件下载结束!"); fhKiG%i'l
} ~aAJn IO
catch(Exception e){e.printStackTrace ();} Y&