/* O<*l"fw3
**SiteFileFetch.java /Ezx'h3Q
*/ 2\b 2W_
package NetFox; x;F^7c1
import java.io.*; B#A
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import java.net.*; ?Nbc#0pb7
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public class SiteFileFetch extends Thread { !vrduOB
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SiteInfoBean siteInfoBean = null; //文件信息Bean D*nNu]|j
long[] nStartPos; //开始位置 .uoQ@3
long[] nEndPos; //结束位置 ,/bSa/x`
FileSplitterFetch[] fileSplitterFetch; //子线程对象 bG|aQ2HW
long nFileLength; //文件长度 5z T~/6-(
boolean bFirst = true; //是否第一次取文件 ]Qu.-F#g
boolean bStop = false; //停止标志 "mk4O4dF
File tmpFile; //文件下载的临时信息 tM%
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DataOutputStream output; //输出到文件的输出流 TJ5g?#Wul
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ^zfO=XN
public SiteFileFetch(SiteInfoBean bean) throws IOException l%f&vOcd
{ G\;a_]Q
siteInfoBean = bean; ytDp
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//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); L@&(>
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); %k"qpu
if(tmpFile.exists ()) 3IlflXb
{ rw|;?a0
bFirst = false; h1A/:/_M6
read_nPos(); pBb fU2p
} $:4*?8K2
else 2#XYR>[
{ (C&Lpt_
nStartPos = new long[bean.getNSplitter()]; %XQ!>BeE
nEndPos = new long[bean.getNSplitter()]; QAk.~ob
} IAlX^6s*
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} iC.k8r+~
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public void run() (v@)nv]U
{ ,$,c<M
//获得文件长度 KJs/4oR;
//分割文件 q!O B?03n
//实例FileSplitterFetch fPA5]a9
//启动FileSplitterFetch线程 2VZdtz
//等待子线程返回 8M~^/Zc
try{ y$Y*%D^w
if(bFirst) ov9+6'zya
{ "R!)"B==
nFileLength = getFileSize(); 'f
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if(nFileLength == -1) &yabxl_
{ } vzNh_
System.err.println("File Length is not known!"); C3hQT8~
} >Av[`1a2F
else if(nFileLength == -2) p-S&Wq
{ C 7a$>#%
System.err.println("File is not access!");
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} 01_*^iCf5
else CD"D^\z
{ 89kxRH\IhG
for(int i=0;i<nStartPos.length;i++) ;Pd nE~
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ;UnJrP-if
} W74Y.zQ
for(int i=0;i<nEndPos.length-1;i++) Osk'zFiL<
{ `Vf k.OP
nEndPos = nStartPos[i+1]; gx55.}
} xl]1{$1M
nEndPos[nEndPos.length-1] = nFileLength; aQTISX;
} dsiQ~ [
} ;WqWD-C
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//启动子线程 m8:9Uv
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; *pP&$!bH%
for(int i=0;i<nStartPos.length;i++) 3%0ShMFP@
{ {~y,.[Ga
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), %RS~>pK1
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), <|kS`y
nStartPos,nEndPos,i); 7%0V ?+]P
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); |l#<vw
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fileSplitterFetch.start(); \$B%TY
} qrw"z
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// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ih[!v"bv
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); $.0l% $ 7
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Pqtk1=U
nEndPos = " + nFileLength); xk/osbKn
// fileSplitterFetch[nPos.length-1].start(); 3&