/* w8~R=k
**SiteFileFetch.java bf=\ED ^
*/ 6HJsIeQ
package NetFox; ;nL7Hizo,
import java.io.*; !]}C!dXd
import java.net.*; j@#RfVx
y{<js!au
Z
ztp %2c
public class SiteFileFetch extends Thread { y${`W94
-hfkF+=U'
suIYfjh
SiteInfoBean siteInfoBean = null; //文件信息Bean o<p4r}*AVJ
long[] nStartPos; //开始位置 %-fS:~$
long[] nEndPos; //结束位置 A@?-"=h}
FileSplitterFetch[] fileSplitterFetch; //子线程对象 p<h(
long nFileLength; //文件长度 bC"h7$3
boolean bFirst = true; //是否第一次取文件 +~YoP>
boolean bStop = false; //停止标志 2Mq@5n
File tmpFile; //文件下载的临时信息 J=8Y D"1
DataOutputStream output; //输出到文件的输出流 z>0$SBQ-
cZ
!$XXA`
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) }@jJv||
public SiteFileFetch(SiteInfoBean bean) throws IOException qhG2j;
{ ">_|!B&wb^
siteInfoBean = bean; ^K: :g)
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ^\ln8!;
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ^8bc<c:P
if(tmpFile.exists ()) jj;TS%
{ 3!cenyE
bFirst = false; D3,)H%5.y
read_nPos(); jTNt!2 :B
} ZwY mR=
else yK9EHJ$
{ ,4XOe,WQ
nStartPos = new long[bean.getNSplitter()]; ,Xn%0]
nEndPos = new long[bean.getNSplitter()]; c;]^aaQ+>
} >ySO.S
7JuHa /Mv
R>~I8k9mM
E}F-*go
} 6{udNv X
5+Tx01)
vg3iT}
public void run() hT_Q_1,
{ |"KdW#.x
//获得文件长度 a(|0'^
//分割文件 4Ozcs'}
//实例FileSplitterFetch DzA'MX
//启动FileSplitterFetch线程 @*L-lx
//等待子线程返回 i"Hc( lg
try{ 3G 5xIr6
if(bFirst) (RrC<5"
{ o(> #}[N}
nFileLength = getFileSize(); Z
eY*5m
if(nFileLength == -1) Ktt(l-e +
{ )+Z.J]$O-
System.err.println("File Length is not known!"); J4j:nd
} c;(Fz^&_
else if(nFileLength == -2) :5&UWL|
{ M&q~e@P
System.err.println("File is not access!"); DnhbMxh8o
} @p/"]zf
else k#~oagW_Gw
{ *81/q8Az
for(int i=0;i<nStartPos.length;i++) sK9RViqF\
{ FqGMHM\J
nStartPos = (long)(i*(nFileLength/nStartPos.length)); [AIqKyIr
} 9m_~Zs}Z
for(int i=0;i<nEndPos.length-1;i++) nQ|($V1?W
{ Y`$\o
nEndPos = nStartPos[i+1]; LfU? 1:Du
} xe(7q1
nEndPos[nEndPos.length-1] = nFileLength; I`jG
} iqB%sIP
} tQxxm=>
$_eJ@L#
E+e),qsbO
//启动子线程 |=~mRqG
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; lfd-!(tXD
for(int i=0;i<nStartPos.length;i++) v$JW7CKA
{ #h9Gl@|
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), t;PG
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 8'qlg|{!~
nStartPos,nEndPos,i); w@6y.v1I{
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); .!lLj1?p
fileSplitterFetch.start(); a+ O?bO
} 73]t5=D:
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), o$U{.#
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); S1~K.<B
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", m J$[X
nEndPos = " + nFileLength); r|
\""
// fileSplitterFetch[nPos.length-1].start(); y] O&w{m$
Fo%`X[ ?
#4"eQ*.*"
//等待子线程结束 zLg$|@E&
//int count = 0; 5.oY$tb(
//是否结束while循环 gcO$ T`
boolean breakWhile = false; &
@_PY
Ku uiU=
(L
|yp^T
while(!bStop) )Spa
F)N8
{ (]&B'1b
write_nPos(); "cjD-42
Utility.sleep(500); Zy?!;`c*{
breakWhile = true; GNB'.tJ:0Y
:9x]5;ma
*uccY_
for(int i=0;i<nStartPos.length;i++) f
w)tWJVD
{ ]c|JxgU
if(!fileSplitterFetch.bDownOver) VQ2'a/s
{ GiK,+M"d
breakWhile = false; aZa1 eE
break; $[Nf?`f(t_
} )"{}L.gC6
} }vgM$o
if(breakWhile) +;pw^QB
break; pzQc UG
nox-)e
saQo]6#
//count++; iyUnxqP
//if(count>4) ,+C?UW
// siteStop(); (G$Q\>
} =,qY\@fq
eOXu^M>:F
:=!6w
System.err.println("文件下载结束!"); b
KDD29
} 'gD./|Z0
catch(Exception e){e.printStackTrace ();} gVJh@]8)
} "WXUz
-?{g{6
pX!T; Re;
//获得文件长度 [0kZyjCq@
public long getFileSize() QG
L~??
{ 4OO^%`=)M'
int nFileLength = -1; {9j0k`A
try{ P%vouC0W
URL url = new URL(siteInfoBean.getSSiteURL()); Zn Rj}y
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); @7Ln1v
httpConnection.setRequestProperty("User-Agent","NetFox"); >Lo'H}[pF
.A6pPRy e
9a sA-'fZ
int responseCode=httpConnection.getResponseCode(); H0t#J
if(responseCode>=400) -=UvOzw
{ `jhbKgR[
processErrorCode(responseCode); ~+Cl9:4T
return -2; //-2 represent access is error Ic&YiATj
} IeA/<'Us
Ro<5c_k
L>hLYIW
String sHeader; };Df ><
7`)RBhGB
3|)cT1ej
for(int i=1;;i++) A5 4u}
{ j!;E>`g
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); ma) +
G!
//Utility.log(in.readLine()); ~]<VEji
sHeader=httpConnection.getHeaderFieldKey(i); a?Y> hvI
if(sHeader!=null) }&s |~
{ )MoHY
if(sHeader.equals("Content-Length")) :iQJ9Hdz
{ ~%
`hh9]
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); 9ku|w#%I
break; vtK.7AF
} >>y\idg&:
} ]z=dRq
else YbZ?["S&
break; 3Y +;8ld
} tF<&R&=
} gdyWuOxa|
catch(IOException e){e.printStackTrace ();} Zm6jF
catch(Exception e){e.printStackTrace ();} 'r -B%D=
W&I:z-VH
GGZ9DC\{
Utility.log(nFileLength); auY?Cj'"fs
]1h9:PF
I?\P^f
return nFileLength; v9f%IE4fX
} z`u$C+Ov
:zO;E+s
!g|[A7<|
//保存下载信息(文件指针位置) :qShP3 ^
private void write_nPos() wLE|J9t%Ea
{ o{hZjn-
try{ v=&xiw