/* `M,Nd'5&|
**SiteFileFetch.java E2-ojL[6
*/ $u&|[vcP0
package NetFox; |O%:P}6c
import java.io.*; O<bDU0s{M
import java.net.*; z,M'Tr.1|
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public class SiteFileFetch extends Thread { h1E
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SiteInfoBean siteInfoBean = null; //文件信息Bean BZ2nDW*%
long[] nStartPos; //开始位置 l~ CZW*/
long[] nEndPos; //结束位置 I>d I[U
FileSplitterFetch[] fileSplitterFetch; //子线程对象 |z ]aa
long nFileLength; //文件长度 |}%(6<
boolean bFirst = true; //是否第一次取文件 4VC/-.At
boolean bStop = false; //停止标志 `~0P[>|+
File tmpFile; //文件下载的临时信息 p EY>A_F
DataOutputStream output; //输出到文件的输出流 Q;=6ag'
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) )K8P+zn~
public SiteFileFetch(SiteInfoBean bean) throws IOException dEL3?-;'
{ 5Zzr5WM
siteInfoBean = bean; F
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//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); l&vm[3
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); K*0aXr?
if(tmpFile.exists ()) $+0=GN
{ lGl[^
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bFirst = false; S_ZLTcq<1
read_nPos(); 4n#YDZ
} G]1(X38[si
else r(pwOOx
{ }7-7t{G
nStartPos = new long[bean.getNSplitter()]; `Fz\wPd
nEndPos = new long[bean.getNSplitter()]; &3jBE--
} ;HR 6X
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} MJy;GzJ O
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public void run() t1G1(F#&%
{ sM#!Xl;
//获得文件长度 &G0l&8pa
//分割文件 VfQMFb',o
//实例FileSplitterFetch hTlnw[I
//启动FileSplitterFetch线程 %~][?Y ><
//等待子线程返回 :D<:N*9i
try{ TS\9<L9S
if(bFirst) aQ32p4C
{ IOSuaLH^
nFileLength = getFileSize(); c-[Q,c
if(nFileLength == -1) 4 *Bp
{ P%.`c?olbs
System.err.println("File Length is not known!"); L2[Ei|9_
} jl;kcGE
else if(nFileLength == -2) N$N;Sw
{ 5%2ef{T[
System.err.println("File is not access!"); -}=@
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} _fVh%_oH1
else )?!vJb"
{ MV
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for(int i=0;i<nStartPos.length;i++) l81&[
{ 6(ka"Vu~
nStartPos = (long)(i*(nFileLength/nStartPos.length)); L@)b%Q@a
} R59e&
for(int i=0;i<nEndPos.length-1;i++) 3~cS}N T
{ h5LJijJ
nEndPos = nStartPos[i+1]; 4RK.Il*d
} zAKq7'_=
nEndPos[nEndPos.length-1] = nFileLength; /Ki0+(4
} p2pTs&}S
} Ymwx(Pm
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//启动子线程 pb=jvK
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; o|rGy5
for(int i=0;i<nStartPos.length;i++) ^2&O3s
{ e8~62O^
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Q\&AlV
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ^q4l4)8jX
nStartPos,nEndPos,i); mp&Le YYn
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); OvyB<r
fileSplitterFetch.start(); 0C7thl{Dms
} 1Qp1Es<)
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), xHM&csL
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); q#mFN/.(+
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", u\Nw:Uu i
nEndPos = " + nFileLength); yDCooX0
// fileSplitterFetch[nPos.length-1].start(); ?=/}Ft
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//等待子线程结束 G/LXUhuif
//int count = 0; *@-q@5r}!
//是否结束while循环 !7O=<