/* 8t--#sDy{0
**SiteFileFetch.java [ArO$X3\
*/ (,d/JnP
package NetFox; JgxA^>|9;
import java.io.*; VEr 6uvB
import java.net.*; kkHTbn=!
d{iL?>'?^
+H?<}N*T
public class SiteFileFetch extends Thread { QQSH +
Qlf
9]ug)
SAQs{M
SiteInfoBean siteInfoBean = null; //文件信息Bean n8
GF8a
long[] nStartPos; //开始位置 3[,wMy"
long[] nEndPos; //结束位置 K]%N-F>r
FileSplitterFetch[] fileSplitterFetch; //子线程对象 rS=tcBO
long nFileLength; //文件长度 okVp\RC
boolean bFirst = true; //是否第一次取文件 %zRiLcAT
boolean bStop = false; //停止标志 }=xI3;7
File tmpFile; //文件下载的临时信息 #%:`p9p.S
DataOutputStream output; //输出到文件的输出流 KuU3DTS85Z
.wM:YX'[G
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 65;|cmjv
public SiteFileFetch(SiteInfoBean bean) throws IOException 4LJ]l:m
{ 8Yo-~,Gb
siteInfoBean = bean; Q*,6X*W!~
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); u~
VswXc4
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); zZ<ns+h
if(tmpFile.exists ()) D l4d'&!
{ 0P3j+?
N%
bFirst = false; wK2yt?
read_nPos(); <[/PyNYK
} ]VzqQ=U%
else HDa~7wE
{ xcAF
nStartPos = new long[bean.getNSplitter()]; V@LN
1|
nEndPos = new long[bean.getNSplitter()]; `WP@ZSC6
} 0,;E.Py?.
d*]Dv,#X
NW}>pb9
#>MO]
} **Qe`}E:
rsd2v9
ev)rOcOU
public void run() Xs{:[vRW
{ =W;t@"6>2
//获得文件长度 TEH*@~P"
//分割文件 )RpqZe/h4
//实例FileSplitterFetch oqm
//启动FileSplitterFetch线程 v@F|O8t:s
//等待子线程返回 E_ o{c5N
try{ Jsl k
if(bFirst) Qx9>,e6+
{ E`A<]dAoK
nFileLength = getFileSize(); L"Qh_+
if(nFileLength == -1) i5ajM,i/K
{ P@^z:RS*{
System.err.println("File Length is not known!"); ~uP
r]#
} ~ >&I^4
else if(nFileLength == -2) E.?E~}z
{ :;" aUHU'
System.err.println("File is not access!"); Ib_n'$5#z
} #a|6Q 8
else []GthF
{ Xtu:
for(int i=0;i<nStartPos.length;i++) _)HD4,`
{ c^i"}2+
nStartPos = (long)(i*(nFileLength/nStartPos.length)); [0mFy)6
} ;zfQ3$@9
for(int i=0;i<nEndPos.length-1;i++) i6meY$l
{ N#<zEAB
nEndPos = nStartPos[i+1]; O;"*_Xq(`
} g:G%Ei~sF
nEndPos[nEndPos.length-1] = nFileLength; "N?%mCPI
} vjOG?-
} %igFHh?
lM@<_=2
aF;]7i@
//启动子线程 lWu9/r 1
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; TnbGO;
for(int i=0;i<nStartPos.length;i++) f:x9Y{Y
{ <3i4NXnL2
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), I_"Hgx<
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), -13P 2<i+
nStartPos,nEndPos,i); WHpUjyBP
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); PK:o}IWn~x
fileSplitterFetch.start(); 3p?<iVE
} =j'J
!M
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), r`&2-]
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); vF*^xhh
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 0?J|C6XM#4
nEndPos = " + nFileLength); ? 6yF{!F*
// fileSplitterFetch[nPos.length-1].start(); 0)6i~Mg lY
yV 9]_k
Z@>=&
//等待子线程结束 7G<KrKal
//int count = 0; I]uOMWZs
//是否结束while循环 +
d+ hvwEM
boolean breakWhile = false; 5 WN`8?
#{)r*"%
!I~C\$^U
while(!bStop) Z1)jRE2dl
{ v&[X&Hu[
write_nPos(); F#!@}K8
Utility.sleep(500); gL[1wM%?
breakWhile = true; XEvGhy#
;Sx'O
Dr8WV\4@
for(int i=0;i<nStartPos.length;i++) v -|P_O&z