/* 4~i?xo=;v
**SiteFileFetch.java P"%f8C~r
*/ Yaj}_M-
package NetFox; =:BTv[lv
import java.io.*; Z]08gH
import java.net.*; &>P<Zw-
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public class SiteFileFetch extends Thread { i!;9A6D
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SiteInfoBean siteInfoBean = null; //文件信息Bean YF)k0bu&;
long[] nStartPos; //开始位置 r1[c+Hy
long[] nEndPos; //结束位置 #\Zr$?t|V
FileSplitterFetch[] fileSplitterFetch; //子线程对象 eI,H
long nFileLength; //文件长度 2{<o1x,Ym
boolean bFirst = true; //是否第一次取文件 y}1Pc*
boolean bStop = false; //停止标志 *-(8Z>9
File tmpFile; //文件下载的临时信息 6{!Cx9V
DataOutputStream output; //输出到文件的输出流 DM,)nh6'
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) s;cGf+
public SiteFileFetch(SiteInfoBean bean) throws IOException K5^`,}Q^
{ "p]!="\
siteInfoBean = bean; 7~Z(dTdSG
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); (0E<Fz
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); b3Qk;yz
if(tmpFile.exists ()) nh*6`5yj
{ 6bN8}\5
bFirst = false; !<>*|a
read_nPos(); eZ BC@y
} \,ne7G21j
else 0*E_D
{ Q^bYx (r5w
nStartPos = new long[bean.getNSplitter()]; |k^C-
nEndPos = new long[bean.getNSplitter()]; 055C1RV%
} $plqk^P
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} 0Wj,=9q
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public void run() +;-ZU
{ zx5#eMD
//获得文件长度 |DYgc$2pN
//分割文件 G=]ox*BY
//实例FileSplitterFetch td7Of(k'
//启动FileSplitterFetch线程 &0i$Y\g
//等待子线程返回 Fw:_O2
try{ mLx=Zes:.
if(bFirst) bYO['ORr@
{ !jvl"+_FV
nFileLength = getFileSize(); n?U^vK_
if(nFileLength == -1) U(Tl$#Bt
{ n?;h-KKO:
System.err.println("File Length is not known!"); g(9kc<`3'D
} $[Q;{Q
else if(nFileLength == -2) 67XUhnE
{ JIIc4fyy8s
System.err.println("File is not access!"); C]Y%dQh+a
} %o5'M^U
else iI>7I<_
{ =3ovaP
for(int i=0;i<nStartPos.length;i++) 9khMG$
{ H+Aidsn
nStartPos = (long)(i*(nFileLength/nStartPos.length)); =X9fn
} m/"([Y_
for(int i=0;i<nEndPos.length-1;i++) -y>~ :.
{ u=tp80_
nEndPos = nStartPos[i+1]; aIDv~#l
} sF>O=F-7
nEndPos[nEndPos.length-1] = nFileLength; w{t]^w:
} mFeR~Bi>!
} zdw*
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//启动子线程 ':3[?d1Es
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; G<*
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for(int i=0;i<nStartPos.length;i++) C1+f\A|9FP
{ .9N7`
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), >bd@2au9!
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ~sZ$`t
nStartPos,nEndPos,i); y+Hz(}4
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); D(OJr5Gg
fileSplitterFetch.start(); 1$+8wDVwad
} R$+p4@?S
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), }LeS3\+UHl
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); :t<