/* Dno]N
**SiteFileFetch.java PK C}!>2
*/ *~h@K Qm7
package NetFox; |`T$Iq
import java.io.*; 1c5+XCr
import java.net.*; pZE}<EX
FUt{-H!<
\d'>Ky;GD
public class SiteFileFetch extends Thread { /9SEW!E
Y ~TR`y
Z\YCjs%
SiteInfoBean siteInfoBean = null; //文件信息Bean B$ =oU
long[] nStartPos; //开始位置 /)%$xi
long[] nEndPos; //结束位置 PO*;V<^
FileSplitterFetch[] fileSplitterFetch; //子线程对象 X!aC6gujOH
long nFileLength; //文件长度 @AB}r1E2
boolean bFirst = true; //是否第一次取文件 CpE LLA<
boolean bStop = false; //停止标志 (DLk+N4UHA
File tmpFile; //文件下载的临时信息 tPp9=e2[s
DataOutputStream output; //输出到文件的输出流 I cJy$+
;[qA?<GJ
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) <?2g\+{s9
public SiteFileFetch(SiteInfoBean bean) throws IOException CXQ +h
{ 5dvP~sw
siteInfoBean = bean; >(?}'pS8
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); !W\za0p
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); V=i/cI\
if(tmpFile.exists ()) D`Cy]j
{ GhJ<L3
bFirst = false; Y>J$OA:
read_nPos(); !:]/MpQ ?
} {4F=].!
else HXeX!
{ +g9CklJ
nStartPos = new long[bean.getNSplitter()]; Exb?eHO
nEndPos = new long[bean.getNSplitter()]; ym_w09
} La2f]+sV
qjm6\ii:)
/f*QxNZ,p
;i'mma_!
}
+vr|J:
#+"1">l
qWdob>u
public void run() r!N> FE
{ [g/ &%n0^
//获得文件长度 1zc aI^e#
//分割文件 B>;`$-
//实例FileSplitterFetch +s j2C
//启动FileSplitterFetch线程 .),Fdrg
//等待子线程返回 ykS-5E`
try{ .A Dik}o
if(bFirst) "C]v
{ qo*%S
nFileLength = getFileSize(); B*@0l:
if(nFileLength == -1) S4Q
fx6:~h
{ UfkQG`G9H
System.err.println("File Length is not known!"); NiSyb yR$
} _x` oab0@
else if(nFileLength == -2) 20,}T)}Tm
{ \H4$9lPk
System.err.println("File is not access!"); V;LV),R?
} b Y2:g )
else F"^/R
{ gWIb"l
for(int i=0;i<nStartPos.length;i++) Yn_v'Os2
{ D[
v2#2
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 6no&2a|D
} uPVO!`N3
for(int i=0;i<nEndPos.length-1;i++) 0{'m":D9
{ Wx` $hvdq
nEndPos = nStartPos[i+1]; 3P *[!KI
} M:*)l(
nEndPos[nEndPos.length-1] = nFileLength; e9;5.m
} Kgw,]E&7
} 6hO]eS
S}3?
c6Z"6-}$
//启动子线程 xU F5
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; B!x7oD9
for(int i=0;i<nStartPos.length;i++) 5hl!zA?
{ #|QA_5
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), j a'_syn
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), |/%X8\
nStartPos,nEndPos,i); S[e> 8
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); zi_0*znw
fileSplitterFetch.start(); P
r2WF~NuO
} Ou] !@s
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Q"s]<MtdS
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); O?f?{Jsx
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", u\3=m%1
nEndPos = " + nFileLength); -`CE;
// fileSplitterFetch[nPos.length-1].start(); A~@x8
pG^>y0
uC|bC#;
//等待子线程结束 %$&_!
//int count = 0; WS.lDMYE7
//是否结束while循环 QKI g5I-
boolean breakWhile = false; MmQk@~
>ra)4huZ
gs(ZJO1 /L
while(!bStop) 6J<R;g23R]
{ *o=[p2d"X
write_nPos(); &9EcgazV
Utility.sleep(500); 2-%9k)KH
breakWhile = true; wW,
n~W
W.c>("gC
48)D%867.;
for(int i=0;i<nStartPos.length;i++) gLwrYG7@
{ .1:B\R((
if(!fileSplitterFetch.bDownOver) e3k58
{ ! JauMR
breakWhile = false; Zg3
/,:1
break;
^+wA,r.
} {ceY:49
} mq+x=
if(breakWhile) {n{-5Y
break; TR9dpt+T
-VvN1G6.x?
W.l#@p
//count++; ;0o%
hx
//if(count>4) fwi
-
// siteStop(); %-L
T56T
} d^Rea8
m[nrr6 G"
o|APsQE
System.err.println("文件下载结束!"); ;)Sf|
} #s{EIj~YR_
catch(Exception e){e.printStackTrace ();}
|`pDOd
} O jH"qi
s;#,c(
UHS"{%
//获得文件长度 K$wxiGg8P
public long getFileSize() 6GoQJ
{ 0py29>"t
int nFileLength = -1; ))6YOc
try{ ?>NX}~2cf
URL url = new URL(siteInfoBean.getSSiteURL()); s)#TT9BbV
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); U
U3o (Yq
httpConnection.setRequestProperty("User-Agent","NetFox"); L0qL\>#ejr
xHe"c<
C8O<fwNM
int responseCode=httpConnection.getResponseCode(); qG3MyK%O\
if(responseCode>=400) <l<