/* VH7iH|eW
**SiteFileFetch.java ?9('o\N:
*/ /K1$_
package NetFox; l9ifUhe
import java.io.*; ,s yA()
import java.net.*; :d%
-,v
F;MT4*4
$Va]vC8?
public class SiteFileFetch extends Thread { }lNufu
1)/T.q<D"
ktw!T{
SiteInfoBean siteInfoBean = null; //文件信息Bean tZNad
long[] nStartPos; //开始位置
wWOT*R_
long[] nEndPos; //结束位置 zW"3K
FileSplitterFetch[] fileSplitterFetch; //子线程对象 LG&Q>pt.
long nFileLength; //文件长度 '#4mDz~
boolean bFirst = true; //是否第一次取文件 d'AviW>
boolean bStop = false; //停止标志 E9Xk8w'+
File tmpFile; //文件下载的临时信息 5cNzG4z
DataOutputStream output; //输出到文件的输出流 (;2J(GZ:$U
{ ck
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) :LIKp;
public SiteFileFetch(SiteInfoBean bean) throws IOException l6`d48U
{ L"[wa.<
siteInfoBean = bean; SbPjU50
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Z'EO
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); IjB*myN.
if(tmpFile.exists ()) Z;~E+dXC
{ >h!.Gj
bFirst = false; |Z7bd^
read_nPos(); tls6rto
} 0ZID
@^
else XM@-Y&c$A
{ bF Y)o Z
nStartPos = new long[bean.getNSplitter()]; kkE)zF
nEndPos = new long[bean.getNSplitter()]; $NGtxZp
} <0Egkz3s
aji~brq
Acq>M^E3
^0ZKHR(}e
} cdtzf:#q
ZvnZ}t>?
1M~:]}*<
public void run() %`\3V
{2*
{ /"%IhX-
//获得文件长度 PcSoG\-G<
//分割文件 J|2Hqd
//实例FileSplitterFetch U*R~w5W.[
//启动FileSplitterFetch线程 +} ! F(c
//等待子线程返回 z7Rcnr;
try{ G4exk5
if(bFirst) Znl>*e/|
{ XFf+efh
nFileLength = getFileSize(); 0[!gk]p
if(nFileLength == -1) In9|n^=H@
{ jVFRq T%
System.err.println("File Length is not known!"); tCCi|*P
G
} U9p.Dh~)vG
else if(nFileLength == -2) KGE-RK
{ -TU{r_!Z(
System.err.println("File is not access!"); Q0"F> %Cn
} fddbXs0Sn
else VF!kr1n!
{ zR JKIm
for(int i=0;i<nStartPos.length;i++) O->(9k <
{ xc]C#q
nStartPos = (long)(i*(nFileLength/nStartPos.length)); $:gSc&mx
} FiU;>t<)
for(int i=0;i<nEndPos.length-1;i++) ~
%YTJS
{ iJKm27 ">
nEndPos = nStartPos[i+1]; io?{ew
} ~lalc ^
nEndPos[nEndPos.length-1] = nFileLength; 8.%a"sxr
} cA*X$j6
} ]Y:
W[p
I'%H:53^0
rPGE-d3
//启动子线程 <:;:*s3]
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; twHM~cTS
for(int i=0;i<nStartPos.length;i++) L+ETMk0
{ gZ >orZL'
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), pQMpkAX
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), xEZVsz
nStartPos,nEndPos,i); @61N[
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); _BLSI8!N@
fileSplitterFetch.start(); ;YXr G
} {6y.%ysU
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), [[r3fEr$!p
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); p$o&dQ=n[
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", JHh9> .1
nEndPos = " + nFileLength); dj&m
// fileSplitterFetch[nPos.length-1].start(); D*r Zaqy
rB&j"p}Q
dpn&)?f
//等待子线程结束 @?cXa: tX
//int count = 0; <