/* h`rjD d
**SiteFileFetch.java G-?9;w'@
*/ +p<R'/
package NetFox; VCRv(Ek
import java.io.*; tsVhPo]e0
import java.net.*; cB=u;$k@*
3CPOZZ
@W- f{V
public class SiteFileFetch extends Thread { /l%qq*Ew
'c{]#E1}
B{(l5B6
SiteInfoBean siteInfoBean = null; //文件信息Bean CHP6H}#|g
long[] nStartPos; //开始位置 Nb^:_0&H@
long[] nEndPos; //结束位置 P]{.e UB@c
FileSplitterFetch[] fileSplitterFetch; //子线程对象 -" K:ve(K
long nFileLength; //文件长度 U)]natB
boolean bFirst = true; //是否第一次取文件 A@AGu#W
boolean bStop = false; //停止标志 <X&:tZ#/
File tmpFile; //文件下载的临时信息 7lPk~0
DataOutputStream output; //输出到文件的输出流 `b'J*4|oGo
A1$'[8U~3
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 0-f-
public SiteFileFetch(SiteInfoBean bean) throws IOException E'6P>6l5
{ lS-i9U/,>
siteInfoBean = bean; geSo#mV
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 1)Bi>X
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); :.df( 1(RL
if(tmpFile.exists ()) e-)1K
{ tSa%ZkS
bFirst = false; K#< Wt5
read_nPos(); H,` XCG
} `~TGVa`D
else tah%jRfT&
{ =Fl4tY#X
nStartPos = new long[bean.getNSplitter()]; wh+ibH}@!
nEndPos = new long[bean.getNSplitter()]; 6ng g*kE<
} j&GKp t
K):sq{
A|Gqjy^;@
)!-'S H
} o}Np}PE6
&B7KWvAy
mLA$F4/K
public void run() j=>Gfo
{ g``4U3T%X
//获得文件长度 u Aa>6R
//分割文件 7Apbi}")
//实例FileSplitterFetch " T=LHj E
//启动FileSplitterFetch线程 UF&Wgj [
//等待子线程返回 R)Fl@
Tn
try{ :''0z
if(bFirst) KL~sEli
{ P~Owvs/=
nFileLength = getFileSize(); W<7Bq_L[|
if(nFileLength == -1) YU(x!<Z
{ qrYeh`Mv
System.err.println("File Length is not known!"); `2
} >[=`{B
else if(nFileLength == -2) *.l=>#qF
{ ka%pS
System.err.println("File is not access!"); ox#4|<qM
} $,42h
else 3l[hkRFu`
{ IxR:a(
for(int i=0;i<nStartPos.length;i++) LnX^*;P5t
{ -;z\BW5y
nStartPos = (long)(i*(nFileLength/nStartPos.length)); dUSuhT
} 5L#M7E
for(int i=0;i<nEndPos.length-1;i++) x#j_}L!V;
{ O v6=|]cW
nEndPos = nStartPos[i+1]; Big-)7?
} J?$uNlI
nEndPos[nEndPos.length-1] = nFileLength; 42LV>X#i
} 6d8
} SUhP
e+
,Z"sh*
/VkJ+%}+j
//启动子线程 s:P-F0q!&
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; o*'3N/D~
for(int i=0;i<nStartPos.length;i++) WU_Q
7%+QS
{ 8+F2
!IM
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), v8N1fuP}
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), $hh=-#J8
nStartPos,nEndPos,i); -+/|
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); BJ/%{ C`g
fileSplitterFetch.start(); cG6+'=]3<
} \v Go5`
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 4+:u2&I
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); v)EJ|2`
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 5GP'cE
nEndPos = " + nFileLength); pUx@ QyrI
// fileSplitterFetch[nPos.length-1].start(); AWcPOU
#*@Yil=1
'"a8<