/* "\vEi
&C
**SiteFileFetch.java un6grvxr
*/ pYI`5B4
package NetFox; Od>Ta_
import java.io.*; SvAz9>N4
import java.net.*; :'f#0 ox
zr\I1v]?1#
l\ts!p4f$
public class SiteFileFetch extends Thread { hp%|n:.G
4M6o+WV
dU3UCD+2y
SiteInfoBean siteInfoBean = null; //文件信息Bean @mNf(&
long[] nStartPos; //开始位置 /.aZXC$]
long[] nEndPos; //结束位置 @PZ&/F^
FileSplitterFetch[] fileSplitterFetch; //子线程对象 a_L&*%;
long nFileLength; //文件长度 f&js,NU"
boolean bFirst = true; //是否第一次取文件 )2g\GRg6
boolean bStop = false; //停止标志 9|D!&=8
File tmpFile; //文件下载的临时信息 n9050&_S
DataOutputStream output; //输出到文件的输出流 ?<#6=
rfkk3oy
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) dum! AO
public SiteFileFetch(SiteInfoBean bean) throws IOException YCj"^RC^
{ ,6}HAC $
siteInfoBean = bean; >+7+ gSD#:
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); d@b"tb}R
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); \Bw9%P~ G
if(tmpFile.exists ()) %njX'7^u
{ uPsn~>(4
bFirst = false; a/NmM)
read_nPos(); DCPK1ql
} S3MMyS8
else G{knO?BK
{
3:PBVt=
nStartPos = new long[bean.getNSplitter()]; iJZqAfG{m?
nEndPos = new long[bean.getNSplitter()]; ;jfjRcU
} }wC
pr.@
T3@wNAAU
$`i$/FE
b~Y$!fc
} g*N~r['dZ
R KFz6t
% rRYT8
public void run() m_W\jz??k
{ ;? '`XB!
//获得文件长度 %q;3bfq@N
//分割文件 R."<he ;
//实例FileSplitterFetch {[jcT>.3j
//启动FileSplitterFetch线程 5H6m{ng
//等待子线程返回 =IkQ;L&
try{ \'q-Xr'}M
if(bFirst) up=4B
{ d8C?m*3J
nFileLength = getFileSize(); !?DPI)
if(nFileLength == -1) f h)Cz)
{ I')URk[
System.err.println("File Length is not known!"); 2Y(Phw2%
} ~x)Awdlu
else if(nFileLength == -2) QjWv?tm
{ 7Wmk"gp
System.err.println("File is not access!"); z[M LMf[c
} .6z#o{n
else U-QK
{ O/e5LA
for(int i=0;i<nStartPos.length;i++) L
Bb&av
{ Cl7IP<.
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 1tDd4r?Y
} m>x.4aO1
for(int i=0;i<nEndPos.length-1;i++) \;&j;"c,W
{ :2^%^3+V
nEndPos = nStartPos[i+1]; KqP!={>"
} SuB;Nb7r`
nEndPos[nEndPos.length-1] = nFileLength; c_~)#F%P
} |qH -^b.F
} Sqed*
Lp5LRw
>to NGGU=~
//启动子线程 [<