/* r8E)GBH-|
**SiteFileFetch.java ]2P*Z6Az
*/ ,s,VOyr @F
package NetFox; ,2YkQ/>
import java.io.*; KDX34Fr1
import java.net.*; \{ui{8+G
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public class SiteFileFetch extends Thread { <X_I`
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SiteInfoBean siteInfoBean = null; //文件信息Bean n^AQ!wC
long[] nStartPos; //开始位置 5L}qL?S`x|
long[] nEndPos; //结束位置 zLxO\R!d
FileSplitterFetch[] fileSplitterFetch; //子线程对象 "NamP\hj
long nFileLength; //文件长度 hkq[xgX
boolean bFirst = true; //是否第一次取文件 ZsPT!l,
boolean bStop = false; //停止标志 t:G67^<3
File tmpFile; //文件下载的临时信息 C"P40VQoo
DataOutputStream output; //输出到文件的输出流 ,:QzF"MV
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 1c}
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public SiteFileFetch(SiteInfoBean bean) throws IOException f|f9[h'
{ ,NQucp
siteInfoBean = bean; D|}%(N@sl
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Ol~jq;75
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); jCMr[ G=
if(tmpFile.exists ()) Q~A25Jf.
{ 2=TQU33#
bFirst = false; Uva
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read_nPos(); bI,gNVN=
} B9RB/vHH
else -&u2C}4s
{ &K_"5.7-56
nStartPos = new long[bean.getNSplitter()]; y[s* %yP3l
nEndPos = new long[bean.getNSplitter()]; 8)D5loS
} Ck|3DiRQ
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public void run() &ESE?{of)
{ SG{> t*E
//获得文件长度 ;L5'3+U
//分割文件 n'yC- ;
//实例FileSplitterFetch SJRiMR_F~
//启动FileSplitterFetch线程 s^]F4'
//等待子线程返回 WvN!8*XFM
try{ y^#jM
if(bFirst) 8#9di
{ L)5YX-?
nFileLength = getFileSize(); Jbud_.h9
if(nFileLength == -1) J3oj}M*
{ &!uNN|W
System.err.println("File Length is not known!"); rTiW
} 4|Dxyb>pS
else if(nFileLength == -2) Z)6gh{B08
{ s!Xj'H7K
System.err.println("File is not access!"); U}55;4^LX
} `[<j5(T
else G] -$fz
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for(int i=0;i<nStartPos.length;i++) b{C3r3B8
{ 5JE8/CbH
nStartPos = (long)(i*(nFileLength/nStartPos.length)); R$<LEwjSw
} 8,BNs5
for(int i=0;i<nEndPos.length-1;i++) _y q"F#,*
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nEndPos = nStartPos[i+1]; 0Dj<-n{9
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nEndPos[nEndPos.length-1] = nFileLength; H B+\2jEE
} h\k!X/
} QfuKpcT&
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//启动子线程 p!MOp-;-
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; }xx[=t=nUf
for(int i=0;i<nStartPos.length;i++) IS`1}i$1%
{ {%$eq{~m
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), xF'9`y^]!@
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), t>J 43
nStartPos,nEndPos,i); ANNfL9:Jy
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); OAu?F}O
fileSplitterFetch.start(); }LDH/#
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} [-X=lJ:+h
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), }JXAG/<
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); N5$L),?\y
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", ?u/Uov@rD
nEndPos = " + nFileLength); fKzOt<wm
// fileSplitterFetch[nPos.length-1].start(); G 2]/g
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//等待子线程结束 JG xuB*}
//int count = 0; PiMW29B^
//是否结束while循环 PpPg ~ix*
boolean breakWhile = false; )_P|_(
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while(!bStop) | I_,;c
{ <KF|QE
write_nPos(); (|_1ku3!
Utility.sleep(500); #?)g? u%g=
breakWhile = true; SomA`y+ERn
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for(int i=0;i<nStartPos.length;i++) \IL/?J
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if(!fileSplitterFetch.bDownOver) */iD68r|-
{ 1$Rua
breakWhile = false; @!0@f'}e
break; fcd\{1#u
} eRkvNI
} -~O7.E(ok
if(breakWhile) <]6])f,y\
break; ,E{z+:Es
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//count++; XK[cbVu
//if(count>4) zKr\S|yE
// siteStop(); Hi$J@xU
} T/DKT1P-
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System.err.println("文件下载结束!"); `mTpL^f
} xSFY8
catch(Exception e){e.printStackTrace ();} V)M+dhl
} Q}p+/-U\
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//获得文件长度 RG [*:ReB9
public long getFileSize() \ct) /
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int nFileLength = -1; i3~"qbU%z[
try{ [5
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URL url = new URL(siteInfoBean.getSSiteURL()); HS3]8nJW
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); T
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httpConnection.setRequestProperty("User-Agent","NetFox"); TwBwqQ)t
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int responseCode=httpConnection.getResponseCode(); .LDK+c
if(responseCode>=400) tbHU(#~
{ ~1xln?Q
processErrorCode(responseCode); Wk$ 7<