/* 7wivu*0
**SiteFileFetch.java o_.f7|U!
*/ ;
S(KJV
package NetFox; PJ-EQ6W
import java.io.*; cN#c25S>
import java.net.*; "~1{|lj|)
4@iMGYR9!s
&tNnW
public class SiteFileFetch extends Thread { Yq6e=?-
ma!rZn
D%=VhKq
SiteInfoBean siteInfoBean = null; //文件信息Bean fEdp^oVg
long[] nStartPos; //开始位置 lUL6L4m
long[] nEndPos; //结束位置 eucacXiZ
FileSplitterFetch[] fileSplitterFetch; //子线程对象 kB2]Z}
long nFileLength; //文件长度 qhdY<[6
boolean bFirst = true; //是否第一次取文件 v%ldg833l
boolean bStop = false; //停止标志 p;y\%i_
File tmpFile; //文件下载的临时信息 #~_ZG% u
DataOutputStream output; //输出到文件的输出流 gMGX)Y ,=/
UABaS(f3
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) UJ/=RBfkJ
public SiteFileFetch(SiteInfoBean bean) throws IOException wWVLwp4-
{ $
$=N'Q
siteInfoBean = bean; YB`;<+sY
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); '`)r<lYN,
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); T J!d7
if(tmpFile.exists ()) $QNII+o
{ (~6D`g`B
bFirst = false; W~!uSrY
read_nPos(); lYF~CNvE
} m@Q%)sc)
else c %jW'
{ ezq<)gJc
nStartPos = new long[bean.getNSplitter()]; /8Sr(
nEndPos = new long[bean.getNSplitter()]; G1=/G
} ul-A'
|7pi9
w1Xe9'$Qb
wNfWHaH" m
} + a,x
W$>AK_Y}
wN+3OPM
public void run() tL#]G?0d
{ pV^(8!+
//获得文件长度 &OMe'P
//分割文件 e5GJ:2sH
//实例FileSplitterFetch <o aVI?
//启动FileSplitterFetch线程 Vx~N`|yY
//等待子线程返回 #:)yh]MP
try{ pX/42W
if(bFirst) RBA{!
{ CJ~gE"
nFileLength = getFileSize(); URo#0fV4C
if(nFileLength == -1) Xi:y3 5q
{ -4=\uvYh
System.err.println("File Length is not known!"); Dcep^8'
} z6Xn9
else if(nFileLength == -2) ta*6xpz-\Q
{ M>yt\qbkA
System.err.println("File is not access!"); <hv {,1p-r
} ru 5T0w";V
else (2l?~CaK
{ 7`G
FtX}
for(int i=0;i<nStartPos.length;i++) `{B<|W$=
{ sN8)p%'Lg
nStartPos = (long)(i*(nFileLength/nStartPos.length)); >T)#KQ1t
} ol7^T
for(int i=0;i<nEndPos.length-1;i++) VGVb3@
{ ImG7E
w
nEndPos = nStartPos[i+1]; jgyXb5GY
} skeXsls
nEndPos[nEndPos.length-1] = nFileLength; H!81Pq~
} rHMr8,J;
} c+bOp
05o-
6a%dq"5 +
FRR`<do5$,
//启动子线程 +vSp+X1E
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; \G~<O071
for(int i=0;i<nStartPos.length;i++) fJdTVs@
{ ^h5h kIx0
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 'ZXd|WI
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), )_H>d<di
nStartPos,nEndPos,i); -Z<V?SFOK
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); q
qFN4AO
fileSplitterFetch.start(); Q$B\)9`v[
} ? JliKFD%
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), T:G8xI1
P
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 3yXSv1
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", iuGly~
nEndPos = " + nFileLength); 8ED}!;ZU
// fileSplitterFetch[nPos.length-1].start(); Es^=&2''
Q\qI+F2?
{*NM~yQ
//等待子线程结束 Z<4Du
//int count = 0; +W}dO#
//是否结束while循环 dSkx*#FEE
boolean breakWhile = false; 9N*!C{VW
X[;-SXq
d+iV19 #i
while(!bStop) +)06*"I
{ ./r#\X)dc
write_nPos(); ~1g)4g~
Utility.sleep(500); /f Ui2[y
breakWhile = true; SbX#$; ks~
*vS)aRK
Ts c2;I
for(int i=0;i<nStartPos.length;i++) :vWixgLg
{ 6qYK"^+xu
if(!fileSplitterFetch.bDownOver) QZ?%xN(4
{ EA=EcUf'
breakWhile = false; /@xL {
break; .{t]Mc
} '1NZSiv+C?
} ~]S%b3>
if(breakWhile) dZ;rn!dg>
break; s^lm
81;
^a #
U_oei3QP
//count++; CeD(!1VG
//if(count>4) v;$cx*?
// siteStop(); ;>jLRx<KC
} F*{1, gb
mO0a: i!
I;rh(FMV
System.err.println("文件下载结束!"); L`@)*x)~R
} 71wtO
catch(Exception e){e.printStackTrace ();} Zf*DC~E_
} u7G9 eN
f)9{D[InM^
JM> 4m)h#
//获得文件长度 y-R:-K XH=
public long getFileSize() U!D\Vd
{ !`qw"i
int nFileLength = -1; >@+ r|
try{ "IMq +
URL url = new URL(siteInfoBean.getSSiteURL());
I5H#]U
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ,Z aPY
httpConnection.setRequestProperty("User-Agent","NetFox"); ki<4G
}:9UI
yT pvKCC
int responseCode=httpConnection.getResponseCode(); <52)
if(responseCode>=400) -l i71.M
{ A"pV 7
y
processErrorCode(responseCode); LPK[^
return -2; //-2 represent access is error NU |vtD
} [D= KI&@&O
GGF;4
"Wz74ble
String sHeader; i8 fUzg)
+~l`rJ
@(I)]Ca%O
for(int i=1;;i++) snti*e4"V
{ Rf0F`D k
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); }&