/* re,.@${H
**SiteFileFetch.java JK~ m(oQ
*/ DcV<y-`'1
package NetFox; af+}S9To
import java.io.*; 8h?X!2Nq
import java.net.*; 26:evid
q:HoKJv4
Ew^ @Aq
public class SiteFileFetch extends Thread { WY)^1Gb$ux
s"0b%0?A
h K}bj
SiteInfoBean siteInfoBean = null; //文件信息Bean 2neRJ
long[] nStartPos; //开始位置 ]?9[l76O7
long[] nEndPos; //结束位置 ^^$vR[7
FileSplitterFetch[] fileSplitterFetch; //子线程对象 #Y,A[Y5jX
long nFileLength; //文件长度 >e8JK*Blz
boolean bFirst = true; //是否第一次取文件 bv\ A,+
boolean bStop = false; //停止标志 0B0G2t&hr
File tmpFile; //文件下载的临时信息 ?SUQk55w
DataOutputStream output; //输出到文件的输出流 ,\hYEup
_Nu`)m
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) hD 46@
public SiteFileFetch(SiteInfoBean bean) throws IOException ! VRI_c
{ g^o_\hp
siteInfoBean = bean; `.k5v7!o
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); o|287S|$
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 5&4F,v[zp
if(tmpFile.exists ()) yCM{M
{ <~%t$:
bFirst = false; dB|Te "6
read_nPos(); u2`xC4>c
} NR/-m7#-
else | Odu4 Q
{ +6%7CC 6
nStartPos = new long[bean.getNSplitter()]; GMFc K=
nEndPos = new long[bean.getNSplitter()]; s%dF~DSK
} ehc<|O9tY
u"F;OT\>g
iAQvsE
REx[`x,GUh
} mMxHR$2
(4)3W^/kk?
$k(9 U\y-
public void run() (
ji_o^
{ 8)Tj
H'
//获得文件长度 1e$[p[
//分割文件 mvf
_@2^
//实例FileSplitterFetch hrlCKL&
//启动FileSplitterFetch线程 O~Uw&Bq
//等待子线程返回 VA]ZR+m
try{ @bQ!zCI
if(bFirst) F|]rA*2u
{ 9c5!\m1
nFileLength = getFileSize(); >1XL;)IL>
if(nFileLength == -1) CSL4P)
{ *!u?
System.err.println("File Length is not known!"); <jL#>L%%
} gLCz]D.'
else if(nFileLength == -2) "=`~iXT{e
{ A[Cg/
+Z
System.err.println("File is not access!"); w:tGPort
} DM/hcY$MW
else dt.-C_MO
{ zlX!xqHj
for(int i=0;i<nStartPos.length;i++) p[P[#IeL
{ GHrBK&
nStartPos = (long)(i*(nFileLength/nStartPos.length)); |2UauTp5yK
} mSj76'L#
for(int i=0;i<nEndPos.length-1;i++) /lUk5g^j
{ J:W'cH$cR
nEndPos = nStartPos[i+1]; 0N1' $K$\
} VEo^ :o)r
nEndPos[nEndPos.length-1] = nFileLength; `1p?*9Ssn
} &(\@sxAyZ
} $WD +Q@6
?hSha)1:
@5*xw1B
//启动子线程 ZmO'IT=Ye
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; }Ch[|D=Wd6
for(int i=0;i<nStartPos.length;i++) wL|7mMM,
{ hd=j56P5P
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), I!
ITM<Z$l
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), &.*T\3UO
nStartPos,nEndPos,i); <\xQ7|e
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); /kb$p8!C".
fileSplitterFetch.start(); \1khyF'
} ]*h&hsS0
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), h=wf>^l
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1);
`QAh5r"
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 7#/|VQX<A
nEndPos = " + nFileLength); Oylp:_<aT
// fileSplitterFetch[nPos.length-1].start(); )ldUayJ
Q~CpP9%
?ZM^%]/+
//等待子线程结束 Kk56/(_S
//int count = 0; u>
In(7\
//是否结束while循环 ^"/Dih\_
boolean breakWhile = false; 4}PeP^pj
K+t];(
VG#$fRrZ
while(!bStop) :EaiM J_=
{ :=B[yD!
write_nPos(); nR#a)et
Utility.sleep(500); =1&}t%<X
breakWhile = true; OUKj@~T
O^D c&w
m>+A*M8
for(int i=0;i<nStartPos.length;i++) kt5YgW
{ $/y%[ .
if(!fileSplitterFetch.bDownOver) v,@E}F~-f1
{ zh
hGqz[K
breakWhile = false; iPJ9Gh7
break; ^$?7H>=_ha
} d<)s@Ntgm
} -<12~HKK::
if(breakWhile) gtl;P_
break; 5D>BV*"
@<%oIE~]F
{K6Kx36
//count++; z4nou>
//if(count>4) \Z8Y(]6*
// siteStop(); L)=8mF.
} 1pl2;!
Ld'EABM
u<J2p?`\&`
System.err.println("文件下载结束!"); QDl)92z
} ge@reGfsB1
catch(Exception e){e.printStackTrace ();} 'II
vub#q
} vJzx Py|
P|yGx)'^P
V=Ww>
//获得文件长度 +,:nm_kQU
public long getFileSize() " Tw0a!
{ e*6U |+kJ
int nFileLength = -1; )62q|c9F
try{ eF*TLI<[^I
URL url = new URL(siteInfoBean.getSSiteURL()); L)j]~^P$-
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 8p3ZF@c~t
httpConnection.setRequestProperty("User-Agent","NetFox"); aslNlH 6
_g^E%@'W
oa?!50d
int responseCode=httpConnection.getResponseCode(); x*k65WO\
if(responseCode>=400) FDZeIj9uF
{ -+`az)lrp
processErrorCode(responseCode); /,-h%gj
return -2; //-2 represent access is error knI*-
} #.RG1-L
QGu7D #%|
F?!};~$=Z
String sHeader; fB@K'JQG
_?*rtDzIM
Jq=X!mTd.
for(int i=1;;i++) A;b=E[iv
{ h,Y{t?Of
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); k,yc>3P;U
//Utility.log(in.readLine()); c
g3Cl[s
sHeader=httpConnection.getHeaderFieldKey(i); vEX|Q\b6'
if(sHeader!=null) wGZ>iLe:
{ oR!n bm
if(sHeader.equals("Content-Length")) &! 5CwEIF
{ ?nj"Ptzs
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); +6i7,U
break; {IF}d*:
} V7Vbl?*n
} d)pz
else n$}R/*
break; I 0x`H)DA
} ;Hz`0V
} |SwZi'p
catch(IOException e){e.printStackTrace ();} A8CIP:Z
catch(Exception e){e.printStackTrace ();} V!j K3vc
"P>$=X~Zi
1oXz[V
Utility.log(nFileLength); YqK+F=0
&/z+A{Hi
Z{8exym
return nFileLength; 60.[t9pk6
} d;*OO xQV
.rD#1)O
|*/uN~[
//保存下载信息(文件指针位置) -k|g04Q?
private void write_nPos() wC4AVJJ^>
{ G
"c&C
try{ )Gu0i7iN
output = new DataOutputStream(new FileOutputStream(tmpFile)); F}VS)
output.writeInt(nStartPos.length); \#IJ=+z
for(int i=0;i<nStartPos.length;i++) Y`E{E|J
{ Xs.$2
// output.writeLong(nPos); &m