/* 7Ab&C&3
**SiteFileFetch.java 0vuL(W8)
*/ f.JZ[+
package NetFox; mE'y$5ZxY
import java.io.*; ye:pGa w
import java.net.*; (4cWq!ax<$
lT#&\JQ
@wy|l)%
public class SiteFileFetch extends Thread { {e\Pd!D?|
lPx4=O
/ts=DxCC;
SiteInfoBean siteInfoBean = null; //文件信息Bean 11[[H kX@
long[] nStartPos; //开始位置 reR ><p
long[] nEndPos; //结束位置 C,~wmS )@
FileSplitterFetch[] fileSplitterFetch; //子线程对象 1j0OV9 -|
long nFileLength; //文件长度 1rKKp h
boolean bFirst = true; //是否第一次取文件 u\wdb^8ds
boolean bStop = false; //停止标志 T]Z|Wq`bot
File tmpFile; //文件下载的临时信息 s:3 altv
DataOutputStream output; //输出到文件的输出流 #"-?+F=rk
5Ds/^fA
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 0D/u`-
public SiteFileFetch(SiteInfoBean bean) throws IOException (|)`~z
{ c[\ :^w^I6
siteInfoBean = bean; 4YDK`:4I~
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ~XN--4%Q
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); =}>wxO
if(tmpFile.exists ()) Ls{z5*<FM
{ ~\kJir
bFirst = false; =y-L'z&r
read_nPos(); IhnHNY]<g
} e8g"QDc
else uMVM- (g%
{ _a1 =?
nStartPos = new long[bean.getNSplitter()]; 28FC@&'H
nEndPos = new long[bean.getNSplitter()];
u$ C@0d
} !+T\}1f7d
U"$Q$ OFs
!$Aijd s5
;, P-2\V/
} uT'_}cw
U<,@u,_Ja
pm$2*!1F(
public void run() KiW4>@tY
{ Vcn04j#Q
//获得文件长度 <"A|Xv'Q
//分割文件 AQn>K{M
//实例FileSplitterFetch hoY.2 B _
//启动FileSplitterFetch线程 7'u<)V
//等待子线程返回 h/~:}Bof
try{ !wiW#PR
if(bFirst) RtVy^~=G
{ _y#omEx
nFileLength = getFileSize(); C
yg e
if(nFileLength == -1) gXr"],OM;
{ [Du@go1C
System.err.println("File Length is not known!"); T}} 0hs;
} AA][}lU:5
else if(nFileLength == -2) GMmz`O
XN
{ 50!/%
System.err.println("File is not access!"); kN3 T/96
} u I$|M
else dw
%aoe
{ d:/8P985
for(int i=0;i<nStartPos.length;i++) vZV+24YWb
{
.G}E
nStartPos = (long)(i*(nFileLength/nStartPos.length)); D|8vS8p
} m-f"EFmP
for(int i=0;i<nEndPos.length-1;i++) A
?"(5da.
{ _&S?uz m
nEndPos = nStartPos[i+1]; ;>^oe:@
} iku8T*&uc
nEndPos[nEndPos.length-1] = nFileLength; _XT],"
} '[#a-8-JY_
} ~3}Gu^@
g\MHv#v*k
Pn@k)g
//启动子线程 %bI(
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; |8I #`
for(int i=0;i<nStartPos.length;i++) 8r
'
{ .DSn
H6O
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Zgp]s+%E
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ^l1tQnj)7
nStartPos,nEndPos,i); 0_yE74i
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); shW$V93<
fileSplitterFetch.start(); U3r[ysf
} ( Lj{V}^
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), \)'nxFKqV
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); `|K,E
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", b?Wg|D
nEndPos = " + nFileLength); 3L/qU^`
// fileSplitterFetch[nPos.length-1].start(); =ark?<E
(H *-b4]/
"8K>Yu17
//等待子线程结束 R'a%_sACj>
//int count = 0; wu?ahNb.`Y
//是否结束while循环 AH`n
boolean breakWhile = false; @rs(`4QEh
R"(rL5j
Z=%+U _,
while(!bStop) ?f v?6r
{ qGMM3a)Q
write_nPos(); ';`fMcN
Utility.sleep(500); Ke-Q>sm2Q
breakWhile = true; M0!;{1
+3.Ik,Z}zq
$iQ>c6
for(int i=0;i<nStartPos.length;i++) \~xI#S@
{ kg[u@LgvoN
if(!fileSplitterFetch.bDownOver) Ke[doQ#c
{ .(o]d{ '-}
breakWhile = false; Li ,B,
break; E_&Hje|J_[
} ".L+gn}u-
} ^q6H
=Dl
if(breakWhile) OJE<2:K
break; :PtpIVAosg
QFoZv+|
n<MMO=+bg
//count++; XfA3Ez,}
//if(count>4) E/cA6*E[.<
// siteStop(); 70_T;K6
} CCKg,v
WtI1h `Fo
H3{x;{.b
System.err.println("文件下载结束!"); xO'I*)
} ~45u
a
catch(Exception e){e.printStackTrace ();} E#"QaI8`
} \C.%S +u
1A^iUC5)
i}
96,{
//获得文件长度 P8NKpO\
public long getFileSize() Rde_I`Ru
{ >4TJH
lB}8
int nFileLength = -1; FzmCS@yA
try{ k*|dX.C:
URL url = new URL(siteInfoBean.getSSiteURL()); 2rHw5Wn]~
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); Wu)ATs}
httpConnection.setRequestProperty("User-Agent","NetFox"); iU^ 4a
O;M_?^'W
#oMbE<//"
int responseCode=httpConnection.getResponseCode(); q!W~>c!
if(responseCode>=400) ':#?YQ}2
{ 20m6-rkI<}
processErrorCode(responseCode); P
Y
+~,T2
return -2; //-2 represent access is error d$ Mk
} ezTu1-m
S-Va_t$
/rp4m&