/* ^Rm
**SiteFileFetch.java :Hxv6
*/ Nn>'^KZNG
package NetFox; 0"~i^
import java.io.*; 9@Cv5L?p\
import java.net.*; 12Y
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public class SiteFileFetch extends Thread { );-~j
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SiteInfoBean siteInfoBean = null; //文件信息Bean 5nbEf9&
long[] nStartPos; //开始位置 /VG2.:
long[] nEndPos; //结束位置 6q
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FileSplitterFetch[] fileSplitterFetch; //子线程对象 iQ{G(^sZN
long nFileLength; //文件长度 g^zs,4pPU<
boolean bFirst = true; //是否第一次取文件 .k,YlFvj
boolean bStop = false; //停止标志 e%W$*f
File tmpFile; //文件下载的临时信息 |7x\m t
DataOutputStream output; //输出到文件的输出流 N&@}/wzZ
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) X$/2[o#g
public SiteFileFetch(SiteInfoBean bean) throws IOException 7gRgOzWfV
{ 3_A
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siteInfoBean = bean; 4tY ss
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); H#ClIh?'b
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); -W>'^1cR
if(tmpFile.exists ()) -_$$Te
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bFirst = false; I!^O)4QRx
read_nPos(); O*#*%RL|
} 4j)tfhwd8
else o.I6ulY8
{ (Cqn6dWK
nStartPos = new long[bean.getNSplitter()]; hpU2
nEndPos = new long[bean.getNSplitter()]; 4*$G & TX
} v$^Z6>vVI
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} L@fY$Rw
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public void run() 5eWwgA
{ ({o'd=nO
//获得文件长度 4bgqg0z>
//分割文件 NFv>B>
//实例FileSplitterFetch )2M>3C6>f
//启动FileSplitterFetch线程 {5
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//等待子线程返回 uG<}N=
try{ 2it?$8#i
if(bFirst) /t(C>$ }p
{ }}<z/zN&^
nFileLength = getFileSize(); o6p98Dpg
if(nFileLength == -1) A<ynIs<
{ M'/aZ#
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System.err.println("File Length is not known!"); i7ly[6{^pr
} Tyck/ EO
else if(nFileLength == -2) IH"6? 9nd
{ G%Lt.?m[
System.err.println("File is not access!"); $cZUM}@
} &y#r;L<9
else ,GgAsj: K
{ 9VbOQ {8
for(int i=0;i<nStartPos.length;i++) \Acqr@D
{ h?pkE
nStartPos = (long)(i*(nFileLength/nStartPos.length)); FJd]D[h
} ZIF49`Y4TF
for(int i=0;i<nEndPos.length-1;i++) +}a ]GTBgA
{ .c$316
nEndPos = nStartPos[i+1]; QNl'ZB\
} _l1NKk
nEndPos[nEndPos.length-1] = nFileLength; 9`9R!=NM
} 5+wAzVA
} 95V@X
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//启动子线程 wT{nu[=GH*
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; ;{[.Zu
for(int i=0;i<nStartPos.length;i++) &:7ZQ1
{ _H/8_[xk
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), .e3+s*
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), SZXY/~=h
nStartPos,nEndPos,i); [#sz WNfU
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); YSe.t_K2C
fileSplitterFetch.start(); S)/_muP
} jfqopiSi
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), @qHNE,K
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); $O5UyKI
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", piZJJYv t
nEndPos = " + nFileLength); 10U9ZC
// fileSplitterFetch[nPos.length-1].start(); 0xXC^jx:
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//等待子线程结束 icgSe:Ci
//int count = 0; xoR;=ph
//是否结束while循环 }_68j8`
boolean breakWhile = false; *VZ5B<Ic
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while(!bStop) .>IhN 5
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write_nPos(); aX }P|l
Utility.sleep(500); Ez-[
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breakWhile = true; QD>"]ap,o
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for(int i=0;i<nStartPos.length;i++) ;y2/-tL?
{ [E
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if(!fileSplitterFetch.bDownOver) [ra_ 2R
{ h^o{@/2
breakWhile = false; {b
break; WpRc)g:
} 6Avw-}.7>
} %&Q$dzgb_
if(breakWhile) =HlQ36;*
break; }-6)gWe
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//count++; ZXuv CI
//if(count>4) H?X|(r|+
// siteStop(); *9{Z$IA9w
} HI11Jl}{
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System.err.println("文件下载结束!"); ]3l 9:|
} N/K.%<h
catch(Exception e){e.printStackTrace ();} c>)Yt^q&K
} u!W0P6
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//获得文件长度 w_{wBL[3e
public long getFileSize() uvG]1m#
{ ^kB8F"X
int nFileLength = -1; VQS~\:1
try{ o_^?n[4
URL url = new URL(siteInfoBean.getSSiteURL()); n4#;k=mA
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); j+,d^!
httpConnection.setRequestProperty("User-Agent","NetFox"); ~,B5Hc 2
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int responseCode=httpConnection.getResponseCode(); 4k@5/5zsM
if(responseCode>=400) ^8AXxE
{ K8UP,f2
processErrorCode(responseCode); )j0TeE1R
return -2; //-2 represent access is error 6U R2IxbE
} `6]%P(#a
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String sHeader; .G#8a1#
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for(int i=1;;i++) <BMXCk
{ E{Ov>osq
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); \Yc'~2n
//Utility.log(in.readLine()); r'HtZo$^R
sHeader=httpConnection.getHeaderFieldKey(i); ^!<BQP7
if(sHeader!=null) m0;CH/D0
{ 6&