/* <p)Z/
**SiteFileFetch.java QmHwn)Ly
*/ Oh-Fp-v87
package NetFox; -s89)lUkS
import java.io.*; s@z{dmL
import java.net.*; X/wmKi
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public class SiteFileFetch extends Thread { }
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SiteInfoBean siteInfoBean = null; //文件信息Bean b^%?S8]h
long[] nStartPos; //开始位置 lc"qqt
long[] nEndPos; //结束位置 2pjW,I!`
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Li ij{ahm
long nFileLength; //文件长度 hMz&JJ&B
boolean bFirst = true; //是否第一次取文件 pY,O_
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boolean bStop = false; //停止标志 AX8gij
File tmpFile; //文件下载的临时信息 {:3.27jQ
DataOutputStream output; //输出到文件的输出流 KCl &H
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) jjX'_E
public SiteFileFetch(SiteInfoBean bean) throws IOException =p5?+3"@
{ [4ee <J
siteInfoBean = bean; (lieiye^
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 6GY32\Ac
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); q%DVDq( z
if(tmpFile.exists ()) z2.*#xTZn
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bFirst = false; <8g=BWA
read_nPos(); \ibCR~W4
} UBL(N r
else #>@<n3rq
{ "$]ls9-%n
nStartPos = new long[bean.getNSplitter()]; &3WkH W
nEndPos = new long[bean.getNSplitter()]; DL
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} v'h3CaA9j
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} >'eB2
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public void run() ,tcP=fdk]
{ k& WS$R?u
//获得文件长度 ? 7/W>
//分割文件 eVZa6la"
//实例FileSplitterFetch 1NuR/DO
//启动FileSplitterFetch线程 o<Xc,mP
//等待子线程返回 hU 9\y
try{ J 5Wz4`'
if(bFirst) TNyK@~#m
{ \m(ymp<c`
nFileLength = getFileSize(); P{"WlJ
if(nFileLength == -1) r hiS
{ 7fap*
System.err.println("File Length is not known!"); #.<*; rB
} BPwI8\V
else if(nFileLength == -2) #L_@s
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{ 17WNJ
System.err.println("File is not access!"); a];BW)
} N8,EI^W8Z
else 1y},9ym
{ #S@UTJa
for(int i=0;i<nStartPos.length;i++) zY]Bu-S3
{ Z[a O_6L
nStartPos = (long)(i*(nFileLength/nStartPos.length)); &sI,8X2a2
} U(rr vNt:t
for(int i=0;i<nEndPos.length-1;i++) @PT`CK}
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nEndPos = nStartPos[i+1]; H @_eFlT t
} 'dmp4VT3
nEndPos[nEndPos.length-1] = nFileLength; M3DxapG
} B.]qrS|
} B`g<Ge~
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//启动子线程 e*Uz#w:
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; P]!LN\[
for(int i=0;i<nStartPos.length;i++) >{O[t2&
{ EO4"Z@ji
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), =giM@MV
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), s5c! ^,L8
nStartPos,nEndPos,i); xaGVu0q
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); s(1_:
fileSplitterFetch.start(); 9F2w.(m
} pieU|?fQ
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), :)KTZ
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Fy}MXe"f
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Ov$N"
nEndPos = " + nFileLength); }4bB7,j
// fileSplitterFetch[nPos.length-1].start(); Eg@R[ ^T
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//等待子线程结束 OYqYI!N/
//int count = 0; d8Q_6(Ar|
//是否结束while循环 hRuo,FS#:
boolean breakWhile = false; 2x<Qt2"
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while(!bStop) \3n{w
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write_nPos(); %{N$1ht^
Utility.sleep(500); @e.OU(Bf
breakWhile = true; BNL8hK`D
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for(int i=0;i<nStartPos.length;i++) rZ8Y=) e
{ Q.pEUDq/
if(!fileSplitterFetch.bDownOver) M5cOz|j/*R
{ [6,]9|~
breakWhile = false; C>w9
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break; APHtJoS
} ,E*a$cCw
} c:?#zX
if(breakWhile) ecY ^C3+S
break; h9Tf@]W
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//count++; \pewbu5^
//if(count>4) [}9XHhY1O=
// siteStop(); K\^&_#MG
} N#pl mPrZ
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System.err.println("文件下载结束!"); L!8 -:)0b
} AjL?Qh4
catch(Exception e){e.printStackTrace ();} 8aZey_Hw;+
} Ew?/@KAV\
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//获得文件长度 _ pH6uuB
public long getFileSize() '&pf
{ !dbA (
int nFileLength = -1; ~P]HG;$?n
try{ r.a9W?(E
URL url = new URL(siteInfoBean.getSSiteURL()); .kB3jfw0,
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); SVg@xu+
httpConnection.setRequestProperty("User-Agent","NetFox"); G3_mWppH
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int responseCode=httpConnection.getResponseCode(); 5&