/* @_?8I_\:
**SiteFileFetch.java mh~n#bah
*/ =e]Wt/AQ
package NetFox; 1F?ylZ|~
import java.io.*; 8;P_KRaE
import java.net.*; _1?Fyu&<5
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public class SiteFileFetch extends Thread { =_d-MJy~6
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SiteInfoBean siteInfoBean = null; //文件信息Bean =Y5*J#
long[] nStartPos; //开始位置 tA9(N>[*
long[] nEndPos; //结束位置 1;9 %L@
FileSplitterFetch[] fileSplitterFetch; //子线程对象 CYC6:g|)
long nFileLength; //文件长度 4JjO.H
boolean bFirst = true; //是否第一次取文件 qzu%Pp6If
boolean bStop = false; //停止标志 ++0xa%:
File tmpFile; //文件下载的临时信息 l7GLN1#m
DataOutputStream output; //输出到文件的输出流 ?T:$:IHw
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) <*&2b
public SiteFileFetch(SiteInfoBean bean) throws IOException 3WF6bJN
{ _xXDvBU
siteInfoBean = bean; Q"H1(kG|
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); |p+ xM
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); W$Zc;KRz$0
if(tmpFile.exists ()) D\V
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{ N%`Eq@5
bFirst = false; wB W]w
read_nPos(); PRF^<%mkI
} ~TALpd
else GGn/J&k
{ 9!|.b::
nStartPos = new long[bean.getNSplitter()]; wz]OM
nEndPos = new long[bean.getNSplitter()]; pn2_ {8.
} ek4?|!kQD
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public void run() @y`7csbp
{ pxs`g&3yd
//获得文件长度 j*;/Cah]k
//分割文件 RJZ4fl
//实例FileSplitterFetch %O3 r>o=
//启动FileSplitterFetch线程 D*#r
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//等待子线程返回 z|>f*Z
try{ KwuNHK)-
if(bFirst) ?{I]!gI
{ zbL6TP@=
nFileLength = getFileSize(); H">
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if(nFileLength == -1) k ihO~<
{ ur2`.dY>3"
System.err.println("File Length is not known!"); 9}6^5f?|
} =2[U4<d!R
else if(nFileLength == -2) yasKU6^R'
{ gT6@0ANq
System.err.println("File is not access!"); .EUOKPK4W
} K%"cVqb2V
else 0UT2sM$
{ ?QXo]X;f&
for(int i=0;i<nStartPos.length;i++) D2}nJFR
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{ &D~70N\L
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ,*@6NK,.
} <U]#722
for(int i=0;i<nEndPos.length-1;i++) ,, G6L{&Z
{ qZ7/d,w
nEndPos = nStartPos[i+1]; tJ9i{TS
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nEndPos[nEndPos.length-1] = nFileLength; j/xL+Y(=
}
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} URD<KIN>
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//启动子线程 hol54)7$3:
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Ng3 MfbFG
for(int i=0;i<nStartPos.length;i++) DOm5 azO!>
{ %%w]-`^h,
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 3q.O^`y FU
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), xFY;aK
nStartPos,nEndPos,i); Y@Kp'+t(!
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); m,U`hPJ
fileSplitterFetch.start(); z_p/.kQ'5
} *tda_B
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// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), vWwnC)5
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); fH7o,U|
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", uFT&r|
nEndPos = " + nFileLength); AhARBgf<
// fileSplitterFetch[nPos.length-1].start(); qe:,%a-9
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//等待子线程结束 vO2 o/
//int count = 0; ?q<"!U|e
//是否结束while循环 +`x8[A)-
boolean breakWhile = false; Osdw\NNH~M
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while(!bStop) r^k:$wJbRK
{ l*]*.?m/5
write_nPos(); GiN\nu<!
Utility.sleep(500); PQRh5km
breakWhile = true; YGObTIGJvf
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for(int i=0;i<nStartPos.length;i++) 3~4e\xL
{ & ;+u.X
if(!fileSplitterFetch.bDownOver) o~F @1
{ q@p-)+D;
breakWhile = false; Vet7a_
break; "Kz=ZC
} 0*"auGuX
} \z<B=RT\
if(breakWhile) 0f
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break; g@.RfX=
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//count++; ;jTP|q?|{
//if(count>4) 31y=Ar""
// siteStop(); ubIGs|p2c
}
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