/* 68d @By
**SiteFileFetch.java kxO$Uk&TX
*/ E>[~"~x"pV
package NetFox; *R:nB)(6<
import java.io.*; _,'UP>Si
import java.net.*; m1cyCD
nQgn^z#
D +oo5
public class SiteFileFetch extends Thread { EuAa
6$zUFIk
<&NR3^Eq
SiteInfoBean siteInfoBean = null; //文件信息Bean XYn$yR\dj
long[] nStartPos; //开始位置 qlzL<
long[] nEndPos; //结束位置 K[9 <a>D`
FileSplitterFetch[] fileSplitterFetch; //子线程对象 {<i!Pm
long nFileLength; //文件长度 }Jc^p
boolean bFirst = true; //是否第一次取文件 *7Mrng
boolean bStop = false; //停止标志 II2oV}7?
File tmpFile; //文件下载的临时信息 ;S%wPXj&
DataOutputStream output; //输出到文件的输出流 ;uJVY)7a
\GkcK$Y
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) qR1ez-#K
public SiteFileFetch(SiteInfoBean bean) throws IOException q}8R>`Z{
{ x^
Wgo`v)
siteInfoBean = bean; ,p2
Di
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); =*'`\}];"
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); M\GS&K$lq
if(tmpFile.exists ()) $pD^O!I)?
{ FYi<+]HZ
bFirst = false; q80?C.,`
read_nPos(); Di L@NU!$q
} @tP,l$O&
else n
b{8zo
{ yf$7<gwX
nStartPos = new long[bean.getNSplitter()]; #(A>yW702
nEndPos = new long[bean.getNSplitter()]; qv<VKJTi6]
} uo%zfi?
Sz._XY^
6tJM*{$$H
|_A35"v
} 3j3AI7c
3Y8%5/D5
UR\*KR;yM
public void run() DS^Q0 f
{ `,|7X]%b
//获得文件长度 4v{gc/g
//分割文件 c1Hv^*Y
//实例FileSplitterFetch ClEtw
//启动FileSplitterFetch线程 Io:xG6yG
//等待子线程返回 :jhJpm1Xq
try{ 4RK^efnp
if(bFirst) QM$?}>:
{ @U9ov >E
nFileLength = getFileSize(); Rk'pymap
if(nFileLength == -1) Xh{EItk~oO
{ c-3? D;
System.err.println("File Length is not known!"); +yYz ;, \
} Lkb?,j5
else if(nFileLength == -2) B EY}mR]
{ )S5Q5"j&=f
System.err.println("File is not access!"); s*Fmu7o43
} 2yN~[,L
else 68D.Li
{ uX p0D$a
for(int i=0;i<nStartPos.length;i++) J4JKAv~3
{ Y`_6Ny="
nStartPos = (long)(i*(nFileLength/nStartPos.length)); p3-sEIw}Ru
} :JOF!Q
for(int i=0;i<nEndPos.length-1;i++) wvgX5P>
{ $}jSIn=~|t
nEndPos = nStartPos[i+1]; 0h5T&U]${Y
} ;Z8K3p
nEndPos[nEndPos.length-1] = nFileLength; VfQSfNsi
} /2YI!U@A
} -dza_{&+iZ
kmuF*0Bjk
f6z[k_lLN
//启动子线程 O/FQ'o1F
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; KI#hII[Q.
for(int i=0;i<nStartPos.length;i++) K/08F|]a
{ Xf.SJ8G
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), zIlQqyOQ8
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 0R; ;ou
nStartPos,nEndPos,i); (l$bA_F\
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); X09&S4
fileSplitterFetch.start(); :*\JJ w
} ?{+}gS^
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ('>!dXA$
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); MN#\P1
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", fghJj@ES
nEndPos = " + nFileLength); ,Z3.Le"
// fileSplitterFetch[nPos.length-1].start(); "d{ |_Cf
>`t
|a
[aIQ/&