/* ;%U`lE0
**SiteFileFetch.java ?rHc%H
*/ ]`:Fj|>
package NetFox; O`Z>Oon?
import java.io.*; $wX5`d1
import java.net.*; ^s24f?3
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public class SiteFileFetch extends Thread { F /t;y\)
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SiteInfoBean siteInfoBean = null; //文件信息Bean uYO?Rb&}
long[] nStartPos; //开始位置 7 H<_
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long[] nEndPos; //结束位置 cJH7zumM)
FileSplitterFetch[] fileSplitterFetch; //子线程对象 (cA=~Bw[=
long nFileLength; //文件长度 S liF$}J
boolean bFirst = true; //是否第一次取文件 VDQ&BmJE
boolean bStop = false; //停止标志 LU%g>?m.]
File tmpFile; //文件下载的临时信息 `D GO~RMp9
DataOutputStream output; //输出到文件的输出流 hr)TC-
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) r{Fu|aoa;5
public SiteFileFetch(SiteInfoBean bean) throws IOException 6|9];)
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siteInfoBean = bean; wePMBL1P*
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); w|$;$a7)
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); + ^~n09
if(tmpFile.exists ()) iAXx`>}m
{ A
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bFirst = false; 3HfT9
read_nPos(); 2@A7i<p
} ;N4mR6
else wV(_=LF
{ n}._Nb
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nStartPos = new long[bean.getNSplitter()]; 9Uk9TG 5
nEndPos = new long[bean.getNSplitter()]; V#sANi?mpo
} Q2k\8i
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}
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public void run() _39b8s{
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//获得文件长度 cvc.-7IO
//分割文件 E7j]"\~ i
//实例FileSplitterFetch V:l; 2rW
//启动FileSplitterFetch线程 "h)+fAT|,
//等待子线程返回 6:h!gY
try{ [%bshaY:
if(bFirst) gE8>5_R|
{ u/hD9g~H7K
nFileLength = getFileSize(); AoTL)',
if(nFileLength == -1) Ho\z^w+T`
{ v'Lckw@G4
System.err.println("File Length is not known!"); f5`exfdHE
} _<5>
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else if(nFileLength == -2) ^mG-O
{ 2#|Q=rWB
System.err.println("File is not access!"); xx41Qw>\W
}
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else hQX|wWh
{ /~AajLxu3W
for(int i=0;i<nStartPos.length;i++) P:CwC"z>sS
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); #<l;YT8
} @n})oAC,
for(int i=0;i<nEndPos.length-1;i++) LeO5BmwHR
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nEndPos = nStartPos[i+1]; ^>]p4Q3 6
} bD49$N?>
nEndPos[nEndPos.length-1] = nFileLength; F1MPo;e
} ,!Ah+x
} !f"@pR6
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//启动子线程 )%UO@4
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 9#pl BtQ**
for(int i=0;i<nStartPos.length;i++) !QC->
{ N !H iQ
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), aIJ[K
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), a*??!
nStartPos,nEndPos,i); LoNz
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Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); A"w
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fileSplitterFetch.start(); %Wu3$b
} ~2=B:;
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), CQ13fu+|6
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ucB<
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", ]k >S0
nEndPos = " + nFileLength);
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// fileSplitterFetch[nPos.length-1].start(); _L&C4 <e'
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//等待子线程结束 -S9$C*t
//int count = 0; \}G/F!
//是否结束while循环 D(L%fK` +
boolean breakWhile = false; o3%Gc/6%
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while(!bStop) 3O$Q>.0 w/
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write_nPos(); z`{Ld9W
Utility.sleep(500); @YV-8;hO
breakWhile = true; cojuU=i
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for(int i=0;i<nStartPos.length;i++) =[vT=sHz7
{ Q- j+#NGc
if(!fileSplitterFetch.bDownOver) lwjg57
{ u'P@3'P
breakWhile = false; +FyG{1?<
break; R%54!f0
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} Hz+edMUL
} H@MUzV
if(breakWhile) oGXT,38*
break; e|xRK?aVBu
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//count++; !=eui$]
//if(count>4) s _p?3bKu
// siteStop(); +*F ;l\R
} m<