/* sis1Dh9:
**SiteFileFetch.java l(pP*2
*/ D4T42L
package NetFox; mhMTn*9
import java.io.*; q:1n=iEi
import java.net.*; pK"iTc#\X
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public class SiteFileFetch extends Thread { U
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SiteInfoBean siteInfoBean = null; //文件信息Bean J'%W_?wZ
long[] nStartPos; //开始位置 V$_.&S?(Y
long[] nEndPos; //结束位置 L@S1C=-/
FileSplitterFetch[] fileSplitterFetch; //子线程对象 }ww`Y
long nFileLength; //文件长度 "H9q%S,FH
boolean bFirst = true; //是否第一次取文件 OWp`Wat
boolean bStop = false; //停止标志 6st^-L
File tmpFile; //文件下载的临时信息 \('WS[$2
DataOutputStream output; //输出到文件的输出流 u"F{cA!B
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) OGcW]i
public SiteFileFetch(SiteInfoBean bean) throws IOException 5,BvT>zFY
{ jItVAmC=i
siteInfoBean = bean; \.?'y71
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 6n\){dkZ~
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); wn.UjxX.
if(tmpFile.exists ()) '(zP;
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bFirst = false; PB) vE
read_nPos(); I :8s 3;
} / <+F/R'=O
else JH#p;7;
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nStartPos = new long[bean.getNSplitter()]; dpT?*qLM
nEndPos = new long[bean.getNSplitter()]; lSy_cItF
} Rl
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public void run() PB#EU9
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//获得文件长度 2gW+&5;4
//分割文件 6ZQ$5PY
//实例FileSplitterFetch ?[.g~DK,
//启动FileSplitterFetch线程 ^vZu[m
//等待子线程返回 !,~C
try{ Gb.}af#v
if(bFirst) L>rW S-
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nFileLength = getFileSize(); a
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if(nFileLength == -1) -3SRGr
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System.err.println("File Length is not known!"); _@Y17L.
} GPAz#0p
else if(nFileLength == -2) w!R J8
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System.err.println("File is not access!"); zc1~ q
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else W|6.gN]
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for(int i=0;i<nStartPos.length;i++) <7oZV^nd *
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); J!:v`gb#@A
} mZ.E;X& ,*
for(int i=0;i<nEndPos.length-1;i++) wQU-r|
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nEndPos = nStartPos[i+1]; 30h1)nQ$h}
} TzrU |D?
nEndPos[nEndPos.length-1] = nFileLength; yjucR
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//启动子线程 BtP*R,>
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; [,qb)
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for(int i=0;i<nStartPos.length;i++) mh~n#bah
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 0.!Q4bhD
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 5O"wPsl
nStartPos,nEndPos,i); uzL IllVX*
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 7
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fileSplitterFetch.start(); +e)RT<
} dYhLk2
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ]GPUL>7
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Q$2^m(?;
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", |)Sx"B)
nEndPos = " + nFileLength); $]iRfXv,l!
// fileSplitterFetch[nPos.length-1].start(); XXZ$^W&
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//等待子线程结束 #e;\Eap
//int count = 0; 7033#@_
//是否结束while循环 e7gWz~
boolean breakWhile = false; b"z9Dp v
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while(!bStop) ,6a }l;lv
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