/* S1T"Z{$
**SiteFileFetch.java >mbHy<<
*/ 9d0@wq.
package NetFox; =g7x'
kN
import java.io.*; ;Zcswt8]u
import java.net.*; gs^Xf;gvI
*?@?f&E/
]\-A;}\e
public class SiteFileFetch extends Thread { ch*8B(:
>4x(e\B
{ T/[cu<
SiteInfoBean siteInfoBean = null; //文件信息Bean T=
8 0,
long[] nStartPos; //开始位置 kUb>^-
-K
long[] nEndPos; //结束位置 3,_aAgeE
FileSplitterFetch[] fileSplitterFetch; //子线程对象 |"q5sym8Y_
long nFileLength; //文件长度 W<h)HhyG
boolean bFirst = true; //是否第一次取文件 k&M;,e3v6
boolean bStop = false; //停止标志 ]6k\)#%2
File tmpFile; //文件下载的临时信息 Q^P}\wb>
DataOutputStream output; //输出到文件的输出流 9 &dtd
S3C]AhW;
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ^ox=HNV
public SiteFileFetch(SiteInfoBean bean) throws IOException j.[.1G*("
{ zF`0J
siteInfoBean = bean; >.Pnkx*
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); L8@f-Kk
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); c`)\Pb/O
if(tmpFile.exists ()) KWbI'}_z
{ ;HfmzY(
bFirst = false; '?{OZXg
read_nPos(); EgEa1l!NSQ
} dM.f]-g
else IV~>I-rd
{ +zqn<<9
nStartPos = new long[bean.getNSplitter()]; 7uqzm
nEndPos = new long[bean.getNSplitter()]; A;q9rD,_
} 3oj' ytxN
J/`<!$<c
^do9*YejX;
f#>,1,S
} tH@Erh|%
#Qw0&kM7I
q~F|
public void run() 5;Czu(iH$
{ etDk35!h~,
//获得文件长度 +%z>H"J.
//分割文件 soB,j3#p'*
//实例FileSplitterFetch n-2]M05O
//启动FileSplitterFetch线程 >a<.mU|#
//等待子线程返回 Pjf"CW+A
try{ VcE:G#]5
if(bFirst) JJ-( Sl
{ Uk wP
nFileLength = getFileSize(); *}qWj_RT
if(nFileLength == -1) V;VHv=9`o
{ 3Y4?CM&0v
System.err.println("File Length is not known!"); 94`7a<&ZNL
} LtF,kAIt7v
else if(nFileLength == -2) [-1^-bb
{ @}u*|P*
System.err.println("File is not access!"); *->W^1eGM
} d A}-]
else x
M/+L:_<
{ Ys9[5@7
for(int i=0;i<nStartPos.length;i++) #b}Z`u?@
{ _IHV7*u{;
nStartPos = (long)(i*(nFileLength/nStartPos.length)); :1Xz4wkWS*
} >0y'Rgfe
for(int i=0;i<nEndPos.length-1;i++) ;3coP{
{ _#E0g'3
nEndPos = nStartPos[i+1]; :wyno#8`-
} lWk>z; d
nEndPos[nEndPos.length-1] = nFileLength; \##zR_%
} .bl/*s
} |fJ};RLI"
Jl8H|<g~/
HXC ;Np
//启动子线程 #4NaL
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; edq4D53
for(int i=0;i<nStartPos.length;i++) 7vKK%H_P
{ F@jZ ho
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), VR 8-&N
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), WF+99?75
nStartPos,nEndPos,i); ;W
)Y
OT
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ij`w} V
fileSplitterFetch.start(); ea2ayT
} A0s ZOCky
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 2eS~/Pq5=i
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); =!A_^;NQf
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", %g$o/A$
nEndPos = " + nFileLength); +4~_Ei[i
// fileSplitterFetch[nPos.length-1].start(); ./Zk`-OBT
Lnl(2xD
KhR8 1\
//等待子线程结束 nsC3
//int count = 0; Xf]d. :
//是否结束while循环 8U"v6S~A%Q
boolean breakWhile = false; )T2Caqs2
epe)a
;%9 |kU
while(!bStop) |kg7LP3(8,
{ Y;M|D'y+
write_nPos(); SYJD?&C;
Utility.sleep(500); BsDn5\q
breakWhile = true; [-K&