/* "}]$ag!`q$
**SiteFileFetch.java jo`ZuN{
*/ i5 rkP`)j
package NetFox; gfQ?k
import java.io.*; ":Dm/g
import java.net.*; ;m(iKwDt
sl]<A[jR
E#k{<LYI
public class SiteFileFetch extends Thread { 4_R|3L
w_(3{P[Iz
THYw_]K
SiteInfoBean siteInfoBean = null; //文件信息Bean -R`{]7V
long[] nStartPos; //开始位置 YFO{i-*q
long[] nEndPos; //结束位置 YT\@fgBt
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Z?axrGmg0
long nFileLength; //文件长度 hS]w
A"\87
boolean bFirst = true; //是否第一次取文件 ~G!JqdKJ0
boolean bStop = false; //停止标志 Y?0/f[Ax,y
File tmpFile; //文件下载的临时信息 $coO~qvU
DataOutputStream output; //输出到文件的输出流 1 R5pf
ZwmucY%3
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) -#|D>
public SiteFileFetch(SiteInfoBean bean) throws IOException NQ9v[gv
{ kka5=u
siteInfoBean = bean; H9cPtP~a)
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); @]=40Yj~w
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); WgtLKRZ\
if(tmpFile.exists ()) L|=5jn9 :
{ jJ,_-ui
bFirst = false; 6Z2 ,:j;
read_nPos(); 7GgZ: $d
} N^Re
else '/W$9jm
{ 8|a./%gixs
nStartPos = new long[bean.getNSplitter()]; 3A7774n=P
nEndPos = new long[bean.getNSplitter()]; mayJwBfU
} lE:g A,
cw Obq\
aB]0?C y9(
4DA34m(
} ~^mUu`@r
[{x}# oRSE
pCIzpEsRs
public void run() %$!3Pbui
{ COrk (V
//获得文件长度 Rr)+M3'
//分割文件 ht3.e[%'b
//实例FileSplitterFetch (`P\nnb
//启动FileSplitterFetch线程 lPTx] =G
//等待子线程返回 [0H0%z#tU&
try{ oo5=5s6 3}
if(bFirst) c`a(
{ d1j9{
nFileLength = getFileSize(); 2QfN.<[-
if(nFileLength == -1) drq3=2
{ V`V\/s gj
System.err.println("File Length is not known!"); )pnyVTKt
} J!I)G&:
else if(nFileLength == -2) %Tm*^
{ M+/xw8}a
System.err.println("File is not access!"); 'Uok<;
} mB?x_6#d9
else $NXP)Lic)
{ wKV4-uyr
for(int i=0;i<nStartPos.length;i++) ud1M-lY\U
{ .Eao|;
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 3*b5V<}'|
} w:~*wv
for(int i=0;i<nEndPos.length-1;i++) HgI!q<)
{ x]~TGzS
nEndPos = nStartPos[i+1]; w0pMH p'Y
} $XBK_ 5
nEndPos[nEndPos.length-1] = nFileLength; ?^}30V:E
}
TCtZ2
<'
} qNp1<QO0
c'2d+*[
r"h;JC/&<T
//启动子线程 I=Y>z^4
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; JxAQ,oOO
for(int i=0;i<nStartPos.length;i++) jlEz]@
i
{ @mp`C}x"0&
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), B/?
L$m
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), bOS)vt*V
nStartPos,nEndPos,i); 4M'>oa
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ?$ r`T]>`2
fileSplitterFetch.start(); .])prp8
} E-e(K8R
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 7R+(3NU1A
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); AOf4y&B>q
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", hsZ/Vnn`
nEndPos = " + nFileLength); ,Kit@`P%
// fileSplitterFetch[nPos.length-1].start(); ]I*c:(qwu
9>""xt
2ZH+fV?.
//等待子线程结束 XR5KJl
//int count = 0; D:)Wr, 26
//是否结束while循环 KWTV!Wxb=K
boolean breakWhile = false; H=r-f@EOrI
y4V:)@P
Z 6jEj9?O
while(!bStop) enoj4g7em^
{ D7Q+w
write_nPos(); &y[NCAeA
Utility.sleep(500); iyskADS
breakWhile = true; hy;VvAH5
f)I5=Ijy(
boh?Xt-$
for(int i=0;i<nStartPos.length;i++) {4"V)9o-1>
{ =;}W)V|X)S
if(!fileSplitterFetch.bDownOver) kc,"w\ ai
{ GkIE;7#2kX
breakWhile = false;
B.z$0=b
break; &W `xZyb3
} bOY;IB
_
} "4j~2{{F
if(breakWhile)
%H{p&ms
break; "fFSZ@,r
[oWkd_dK
%!|w(Povq
//count++; i`,FXF)
//if(count>4) _ k-_&PR
// siteStop(); VYyija:
} f60w%
V\~.
H=dIZ
System.err.println("文件下载结束!"); OvdT* g=8*
} $ /VQsb
catch(Exception e){e.printStackTrace ();} .nV2n@SR
} 5*0zI\
$KHm5*;nd
3"fDFR
//获得文件长度 JJ.8V72;!Z
public long getFileSize() b*|~F
{ Bous d
int nFileLength = -1; Ts iJK
try{ *4,Q9K_
URL url = new URL(siteInfoBean.getSSiteURL()); Vns3859$8
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ]5!3|UYS
httpConnection.setRequestProperty("User-Agent","NetFox"); [K{{P|(q
[m~J6WB
>A#5` $i
int responseCode=httpConnection.getResponseCode(); 6W1GvM\e
if(responseCode>=400) Z9{~t
{ 3G})$y3m
processErrorCode(responseCode); Z:4/lx7Bq
return -2; //-2 represent access is error ZR.k'
} sEhvx+(
8f@}-
~/OY1~c
String sHeader; R|;BO:S1
n.%QWhUB
;p`1Y<d-O
for(int i=1;;i++) =j7Du[?Vu
{ bzN[*X|
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); V&mkS
//Utility.log(in.readLine()); M!&Hn,22
sHeader=httpConnection.getHeaderFieldKey(i); 0b&