/* 6lob&+
**SiteFileFetch.java MREB
*/ >UnLq:G
package NetFox; ]O&\P n0q
import java.io.*; 3Pgld*i7
import java.net.*; Z9q1z~qSQ
ac%x\e$
eZ8DW6 l*
public class SiteFileFetch extends Thread { ^TEFKx}PX
vlC$0P
I3;03X<2
SiteInfoBean siteInfoBean = null; //文件信息Bean LbUH`0:%t
long[] nStartPos; //开始位置 p`)Mk<`dYD
long[] nEndPos; //结束位置 M3!4,_!~
FileSplitterFetch[] fileSplitterFetch; //子线程对象 9Ecc~'f
long nFileLength; //文件长度 pmc)$3u
boolean bFirst = true; //是否第一次取文件 ib%'{?Q.
boolean bStop = false; //停止标志 K1CgM1 v
File tmpFile; //文件下载的临时信息 w0P Atu
DataOutputStream output; //输出到文件的输出流 R5N~%Dg)3
^Eif~v
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) te;VGpv.
public SiteFileFetch(SiteInfoBean bean) throws IOException :_[pZ;-@
{ B|ctauJ
siteInfoBean = bean; UetI4`
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); )nlFyWXh.
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); hMyN$7Z
if(tmpFile.exists ()) :"'*1S*
{ O`Y@U?^N
bFirst = false; !>\g[C
read_nPos(); KGrYF
} *FFD G_YG?
else 0@wXE\s
{ /BwG\GhM
nStartPos = new long[bean.getNSplitter()]; 1h3`y
nEndPos = new long[bean.getNSplitter()]; 0-:dzf
} %^l&:\ hy
y7vA[us
4m!w<c0NL
} 8[
} /^$n&gI
PQ 2rNY6
a
y$CUw
public void run() bFVY&
{ qRL45[ K
//获得文件长度 PkcvUJV
//分割文件 7U:{=+oLR
//实例FileSplitterFetch v >cPr(
//启动FileSplitterFetch线程 L),r\#Y(v
//等待子线程返回
{__NVv
try{ \$!D^%~;
if(bFirst) umN4|X
{ xoQ(GrBY
nFileLength = getFileSize(); -`D<OSt7
if(nFileLength == -1) gI00@p:m
{ "dHo6CT,y_
System.err.println("File Length is not known!"); )cU$I)
} w\a6ga!xt"
else if(nFileLength == -2) S59^$
{ tA^CuJR
System.err.println("File is not access!"); l[^0Ik-G
} Q_`EKz;N{
else O~|Y#T
{ xy]oj
for(int i=0;i<nStartPos.length;i++) z.;!Pj
{ r<B
pX["
nStartPos = (long)(i*(nFileLength/nStartPos.length)); &q +l5L"
} C=t9P#g*.
for(int i=0;i<nEndPos.length-1;i++) O*yA50Cn
{ C(vQR~_
nEndPos = nStartPos[i+1]; Ro=dgQ0:t
} ,I
H~
nEndPos[nEndPos.length-1] = nFileLength; vCUbbQz
}
7n*"9Ai(
} G4ycP8
"A0y&^4B@
Bm;:
cmB0e
//启动子线程 9W&nAr
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; tBVtIOm9
for(int i=0;i<nStartPos.length;i++) K/_"ybR7
{ /vpwpVHIpG
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), a7aj:.wi
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), P1R[M|Fx
nStartPos,nEndPos,i); yp)D"w4@
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); h)^|VM
fileSplitterFetch.start(); zU'7x U-
} 7CwWf
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), S
R s
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); .\:MB7p
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", tAkv'.
nEndPos = " + nFileLength); 5> !N)pA
// fileSplitterFetch[nPos.length-1].start(); na@Go@q
DGg1TUE
`6(Zc"/
\m
//等待子线程结束 |Mgzb0_IiQ
//int count = 0; HX ,\a`
//是否结束while循环 ZC`VuCg2O
boolean breakWhile = false; iNilk!d6Q3
`dhBLAt
hV&