/* +>PsQ^^x
**SiteFileFetch.java nM[yBA
*/ }#ink4dK:
package NetFox; t3)6R(JC
import java.io.*; lOm01&^"E
import java.net.*; H_&to3b(
MG?,,8s O
h*Fv~j'p
public class SiteFileFetch extends Thread { ?lC>E[
gTj,I=3$?e
,p|Q/M^
SiteInfoBean siteInfoBean = null; //文件信息Bean yrxX[Hg?@
long[] nStartPos; //开始位置 Lm[,^k
long[] nEndPos; //结束位置 M-@RgWvF
FileSplitterFetch[] fileSplitterFetch; //子线程对象 ZID- ~
6
long nFileLength; //文件长度 2Q e&FeT
boolean bFirst = true; //是否第一次取文件 A4zI1QF
boolean bStop = false; //停止标志 M'%4BOpI6`
File tmpFile; //文件下载的临时信息 W&hW N9iR
DataOutputStream output; //输出到文件的输出流 U'=8:&
h$8h@2%
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 6{6hz8
public SiteFileFetch(SiteInfoBean bean) throws IOException 'V]C.`9c
{ qA>#;UTp
siteInfoBean = bean; {Z2nc)|7C
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); CcQc!`YC
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); F\eQV<
if(tmpFile.exists ()) /9br &s$B
{ r^m&<)Ca
bFirst = false; r D@*xMW
read_nPos(); a3 }V/MY
} gvI!Ice#
else l`"?KD
{ bTJ<8q
nStartPos = new long[bean.getNSplitter()]; p8'$@:M\
nEndPos = new long[bean.getNSplitter()]; qur2t8gnxq
} -riX=K>$
f#z:ILG=
Ch]d\G M
+zh\W9
} UVux[qX<
4EM+ Ye
xt}.0dC!/%
public void run() O}i+1
{ _eGYwBm
//获得文件长度 C:Jfrg`
//分割文件 YrnC'o`
//实例FileSplitterFetch DgT]Nty@b
//启动FileSplitterFetch线程 5Npxs&Ea
//等待子线程返回 ]hV!lG1_
try{ UOb`@#
if(bFirst) fg LY{
{ M
P8Sd1_=
nFileLength = getFileSize(); Hs)Cf)8u
if(nFileLength == -1) ?z>J7 }w*=
{ DKf(igw
System.err.println("File Length is not known!"); j""ZFh04
} 4x6n,:;
else if(nFileLength == -2) *QQeK#$s
{ /0}Z>iK
System.err.println("File is not access!"); x=cucZ
} i D 9 */
else ]In7%Qb
{ [mzed{p]]
for(int i=0;i<nStartPos.length;i++) - VJx)g
{ loIb}8
nStartPos = (long)(i*(nFileLength/nStartPos.length)); a <C?- g|
} JOuyEPy
for(int i=0;i<nEndPos.length-1;i++) opH!sa@U
{ *;@wPT
nEndPos = nStartPos[i+1]; 1 !_p
} 1r=cCM
nEndPos[nEndPos.length-1] = nFileLength; A,F~*LXm
} OjhX:{"59
} x|m9?[
!_
l:'#pZ4T
[2-n*a(q
//启动子线程 >e {1e
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; c:m=9>3
for(int i=0;i<nStartPos.length;i++) ?#w} S%
{ {.2\}7.c
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(),
2yJ{B
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 2VRGTx
nStartPos,nEndPos,i); n5=U.r
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); di/QJrw
fileSplitterFetch.start(); R ` ViRJh
} #csP.z3^y
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Dnd; N/9
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 0BDw}E\
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", T3fQ #p
nEndPos = " + nFileLength); (ODwdN7;
// fileSplitterFetch[nPos.length-1].start(); 7_\F$bp`
P7F"#R0QB
kBZ1)?
//等待子线程结束 WGz)-IB!PE
//int count = 0; cCZp6^/<x
//是否结束while循环 ?=9'?K/~a
boolean breakWhile = false; 4`i8m
)I&.6l!#
~)f^y!PMQ
while(!bStop) ./ {79
{ FGi7KV=N
write_nPos(); U5kKT.M
Utility.sleep(500); ['o ueOg
breakWhile = true; 94-BcN
+4-T_m/W/
U,P>P+\@
for(int i=0;i<nStartPos.length;i++) Ms|c"?se
{ Qn8xe,
if(!fileSplitterFetch.bDownOver) I]C
Y>'
{ 3aq'JVq
breakWhile = false; 0o+Yjg>\~8
break; o=R(DK# U
} iv >MIdIm
} _;03R{e*
if(breakWhile) ZxNTuGOB:
break; 5;}W=x^$a
EQ273sdK
0S4BV%7F
//count++; R1H^CJ=v0
//if(count>4) *#YZm>h
// siteStop(); U1r]e%df)
} ~Fuq{e9`
XY| y1L 3[
Mm$\j*f/
System.err.println("文件下载结束!"); jM\{*!7b
} &1Ndi<Y^
catch(Exception e){e.printStackTrace ();} _ 94
W@dW
} ??"_o3
qf(mJlU
Ef#LRcG-Z
//获得文件长度 d[_26.
public long getFileSize() pbAL& }
{ gQr+~O
int nFileLength = -1; M?lh1Yu"
try{ H<Sf0>OA
URL url = new URL(siteInfoBean.getSSiteURL()); (1'DZxJ&u
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); Z8v 8@Y
httpConnection.setRequestProperty("User-Agent","NetFox"); n.+'9Fj
wS}c\!@<,
o^/
#i`)
int responseCode=httpConnection.getResponseCode(); | @AXW
if(responseCode>=400) Y_CVDKdcY
{ V^,gpTyv*
processErrorCode(responseCode); X8*g#lO?
return -2; //-2 represent access is error N_T5sZ\
} '<o3x$6
*
4SI~y;c)
W,@F!8
String sHeader; V#oz~GMB
x{:U$[_
w!"L\QT
for(int i=1;;i++) C{bxPILw
{ &DMC\R* j
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); S=k!8]/d|
//Utility.log(in.readLine()); Y$L`
G
sHeader=httpConnection.getHeaderFieldKey(i); +fk*c[FG
if(sHeader!=null) (%fQhQ
{ ]u5TvI,C
if(sHeader.equals("Content-Length")) Hi09?AX
{ QH-CZ6M
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); eJo" Z
break; {<ShUN
} Rv&"h_"t
} 6X@z(EEL
else 'u<e<hU
break; G^Gs/-
f
} U"7o;q
} X_2N9$},
catch(IOException e){e.printStackTrace ();} )P(S:x'b0
catch(Exception e){e.printStackTrace ();} v8-My1toV
Lw\u{E@
uU 7 <8G
Utility.log(nFileLength); WPRk>j
;JkIZ8!
h*VDd3[#
return nFileLength; "\@J0|ppb
} 9:{<