/* ViT$]Nv
**SiteFileFetch.java =}AwA5G
*/ A|U_$!cLZ
package NetFox; $lrq*Nf9c
import java.io.*; HPR*:t
import java.net.*; jG3i
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public class SiteFileFetch extends Thread { lN^} qg><
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SiteInfoBean siteInfoBean = null; //文件信息Bean nK9A=H'Hc
long[] nStartPos; //开始位置 6|:]2S
long[] nEndPos; //结束位置 !23#Bz7
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Y|iALrx
long nFileLength; //文件长度 PUViTb
boolean bFirst = true; //是否第一次取文件 ^Ru/7pw5
boolean bStop = false; //停止标志 # nh;KlI0
File tmpFile; //文件下载的临时信息 K:eP Il{JE
DataOutputStream output; //输出到文件的输出流 8.Ty
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) A5ps|zidI
public SiteFileFetch(SiteInfoBean bean) throws IOException &Qdd\h#
{ AiO29<
siteInfoBean = bean; 0TI+6u
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); P}QuGy[
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); uB:utg
if(tmpFile.exists ()) J5Tl62}
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bFirst = false; u{ .UZTn
read_nPos(); x~tG[Y2F?
} 7MT[fA8^
else k iCg+@nT
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nStartPos = new long[bean.getNSplitter()]; DjjG?(1
nEndPos = new long[bean.getNSplitter()]; s],+]<qX
} k w!1]N
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public void run() ,9f$an
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//获得文件长度 q<b;xx
//分割文件 (k..ll p~
//实例FileSplitterFetch J,E'F!{
//启动FileSplitterFetch线程 h^5'i}@u
//等待子线程返回 xla9:*pPn
try{ toEmIa~o6
if(bFirst) *Gm%Dn
{ {=><@]N
nFileLength = getFileSize(); NTVdSK7z~H
if(nFileLength == -1) v:<UbuJw
{ KPUc+`cN%
System.err.println("File Length is not known!"); |T9p#) ec2
} (6G5UwSt
else if(nFileLength == -2) RCq_FY
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System.err.println("File is not access!"); ;Q2p~-0Q
} j%KLp4J/e
else QO)Q%K,
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for(int i=0;i<nStartPos.length;i++) Ov)rsi
{ A|YqBl
nStartPos = (long)(i*(nFileLength/nStartPos.length)); vF;%#P
} ;ePmN|rq;
for(int i=0;i<nEndPos.length-1;i++) *"Ipu"G5?
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nEndPos = nStartPos[i+1]; LRv-q{jP;
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nEndPos[nEndPos.length-1] = nFileLength; ?/~7\ '|Z
} xU^Flw,4
} uM0z%z5b
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//启动子线程 q"A( l
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; ;#!`cgAh
for(int i=0;i<nStartPos.length;i++) lFD$Mc
{ ~'HwNzDQc
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Ajhrsa\~a
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), g Bq, So
nStartPos,nEndPos,i); 8lt P)K4
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 2|#3rF
fileSplitterFetch.start(); ue$\i =jw
} .c+RFX@0
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), fdN-Zq@'
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); N@^?J@#V
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Z|
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nEndPos = " + nFileLength); Ne.W-,X^cL
// fileSplitterFetch[nPos.length-1].start(); }yU,_:
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//等待子线程结束 z1F[okLA
//int count = 0; S~}?6/G.
//是否结束while循环 &S<tX]v
boolean breakWhile = false; Vr f` :%
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while(!bStop) PS@`
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{ |]]Xee]
write_nPos(); a)[XJLCQ
Utility.sleep(500); NQ{ XIN~
breakWhile = true; `96:Z-!}
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for(int i=0;i<nStartPos.length;i++) {`~{%2ayq7
{ ts%@1Y?
if(!fileSplitterFetch.bDownOver) S0g5Ym
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{ 2[Q*?N
breakWhile = false; wI}5[m
break; E'&UWDh
} 7##nY3",^
} ^`\c;!)F<
if(breakWhile) IX^k<Jqr
break; Jnm{i|6N
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//count++; }jfU qqFd
//if(count>4) MlsF?"H p
// siteStop(); 9 YU7R)
} 7
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System.err.println("文件下载结束!"); OgS6#X
} qw0tw2|
catch(Exception e){e.printStackTrace ();} z(>{"t<C
} #v')iR"
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//获得文件长度 3.Qf^p
public long getFileSize() <h
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{ RoLUPy9U
int nFileLength = -1; bP Er+?fu
try{ *
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URL url = new URL(siteInfoBean.getSSiteURL()); 23y7l=.b/
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); djPr 4Nog
httpConnection.setRequestProperty("User-Agent","NetFox"); v(=fV/
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int responseCode=httpConnection.getResponseCode(); 4G@vO{$
if(responseCode>=400) zY\v|l<T
{ Q]w;o&eo
processErrorCode(responseCode); fmA&1u/xMs
return -2; //-2 represent access is error ,^,Vq]$3
} ^;NM'Z
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String sHeader; dj?.Hc7od
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for(int i=1;;i++) |>A1J:
{ u$&