/* x8w455
**SiteFileFetch.java "1t%J7c_
*/ DR;rK[f
package NetFox; NZ7g}+GTG
import java.io.*; m\RU|Z
import java.net.*; s7[du_)
GG-7YJ
Ru`&>E
public class SiteFileFetch extends Thread { JdF;*`_7*
ycTX\.KV
> X<pzD3u
SiteInfoBean siteInfoBean = null; //文件信息Bean rLtB^?A z
long[] nStartPos; //开始位置 ,E<(K8
long[] nEndPos; //结束位置 R_`i=>Z-
FileSplitterFetch[] fileSplitterFetch; //子线程对象 :2vk
vLM
long nFileLength; //文件长度 nDhr;/"i
boolean bFirst = true; //是否第一次取文件 NJRk##Z
boolean bStop = false; //停止标志 _SY4Qs`d
File tmpFile; //文件下载的临时信息 +iY .Y V
DataOutputStream output; //输出到文件的输出流 R.-2shOE'
@lRTp
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 9ePG-=5I
public SiteFileFetch(SiteInfoBean bean) throws IOException KEEHb2q
{ >+ulLQqe
siteInfoBean = bean; nkUSd}a`r
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); EBc_RpC/Z
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); p3`ND;KQ
if(tmpFile.exists ()) n=qN@u;Fi#
{ g1UP/hNJ\8
bFirst = false; e0Zwhz,
read_nPos(); ge
%ytrst
} 5[suwaJQ
else L|A}A[ P
{ c6 VfFt6p
nStartPos = new long[bean.getNSplitter()]; V(u#8M
nEndPos = new long[bean.getNSplitter()]; a\;Vly;
} GgwO>[T
;6P#V`u
=:Ahg
9
QQ;<L"VW
} E{'{fo!#)
'#pY/,hVB
[$:M/5y9
public void run() Ws$<B
b
{ 7L)edR[
//获得文件长度 Oh)s"f\N
//分割文件 (xxNQ]
l-(
//实例FileSplitterFetch vkUXMMuf+e
//启动FileSplitterFetch线程 T%zCAfx m
//等待子线程返回 J)tk<&X
try{ O<}3\O )G(
if(bFirst) ZFYv|2l
{
0N9`WK
nFileLength = getFileSize(); nE;^xMOK!
if(nFileLength == -1) t+y$i@R:
{ e1ts/@V
System.err.println("File Length is not known!"); ^hL?.xj
} N!me:|Dn
else if(nFileLength == -2) wwmHr!b:6
{ X~+AaI:~K
System.err.println("File is not access!"); xwvg@
} EY+/
foP
else < 7
{ ct o+W}k
for(int i=0;i<nStartPos.length;i++) e8E*Urtz
{ ;zq3>A
nStartPos = (long)(i*(nFileLength/nStartPos.length)); itotn!Wb`
} 3jR>
for(int i=0;i<nEndPos.length-1;i++) JdYmUM|K/c
{ d OG]Yjc
nEndPos = nStartPos[i+1]; pX 4:WV
} ,EsPm'`?A/
nEndPos[nEndPos.length-1] = nFileLength; b{+7sl
} U-h'a:
K
} |aWeo.;c
*aem5E`c
skSs|slp
//启动子线程 Dqxtc|vo
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Gz09#nFZk
for(int i=0;i<nStartPos.length;i++) C6<*'5T
{ ~%gO +qD
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), SK][UxoHm
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), Wb)>APL
nStartPos,nEndPos,i); /kZ{+4M
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); +F>9hA
fileSplitterFetch.start(); ^jph"a C
} ioJ~k[T
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), {:@MBA34
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ;pH&YBY
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ",
iwiHw
nEndPos = " + nFileLength); ` @PHV
// fileSplitterFetch[nPos.length-1].start(); 40?xu#"
<q}w, XU
owR`Z`^h)
//等待子线程结束 Uj/m
//int count = 0; #saK8; tp
//是否结束while循环 ='rSB.$Ctk
boolean breakWhile = false; 7A,QA5G]C
n8K FP
S`w_q=-^8
while(!bStop) 9sQ#v-+Yx
{ E:7R>.g
write_nPos(); mQ$a^28=qR
Utility.sleep(500); EdC^L`::
breakWhile = true; Jm#mC
}Cs.Hm0P
[\_#n5
for(int i=0;i<nStartPos.length;i++) 4Y'Kjx
{ /7`fg0A
if(!fileSplitterFetch.bDownOver) 'gD,HX
{ 1J{1>r
breakWhile = false; ?^X
e^1(
break; UZ*Yt
} *m>XtBw.
} jIvSjlm I
if(breakWhile) O,D/&0
break; \c1NIuJR
$E >)
Uo<iZ3J
//count++; DQ08dP((v
//if(count>4)
0m&
// siteStop(); |Q|vCWel{
} h=x{
3P;B
TXH9BlDn
4tGP-
L
System.err.println("文件下载结束!"); 5eL_iNqJM
} Qnr7Qnb
catch(Exception e){e.printStackTrace ();} VX'cFqrK3
} NA/hs/ '
;$FpxurX
)ZHo7X
//获得文件长度 PV(TDb:0
public long getFileSize() !et[Rdbu
{ n[f<]4<
int nFileLength = -1; IncHY?ud<