/* E:N~c'k
**SiteFileFetch.java J['paHSF
*/ + (cTzY
package NetFox; -VESe}c:nQ
import java.io.*; ~ (xIG
import java.net.*; s|U?{Byb!
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public class SiteFileFetch extends Thread { VR>;{>~
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SiteInfoBean siteInfoBean = null; //文件信息Bean uhFj|r$$
long[] nStartPos; //开始位置 AWP CJmr
long[] nEndPos; //结束位置 vmW4 3K;
FileSplitterFetch[] fileSplitterFetch; //子线程对象 h,q%MZ==^s
long nFileLength; //文件长度 <aR8fU
boolean bFirst = true; //是否第一次取文件 ;K:)R_H
boolean bStop = false; //停止标志 aZYa<28?L%
File tmpFile; //文件下载的临时信息 dE*n!@
DataOutputStream output; //输出到文件的输出流 =>Vo|LBoe
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) r[zxb0YA
public SiteFileFetch(SiteInfoBean bean) throws IOException 1FS Jqad
{ \k1psqw^O
siteInfoBean = bean; J(0.eD91v
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); D5]sf>~
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); Nw}y_Qf{
if(tmpFile.exists ()) !aD/I%X
{ Zi=Nr3b
bFirst = false; TE4{W4I
read_nPos(); <a |$Bl
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else Yw=Ve 0
{ #5kQn>R
nStartPos = new long[bean.getNSplitter()]; xn&G`
nEndPos = new long[bean.getNSplitter()]; <@}~Fp@
} *]fBd<(8
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} \FSkI0
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public void run() 0(;d<u)fS
{ Efb>ZQ
//获得文件长度 &inu mc
//分割文件 8H3|i7.1h
//实例FileSplitterFetch @eN x:}
//启动FileSplitterFetch线程 x-k}RI
//等待子线程返回 ?5nF` [rx
try{ e%&2tf4
if(bFirst) SUXRWFl
{ T^8t<S@`
nFileLength = getFileSize(); iK6L\'k
if(nFileLength == -1) nsqs*$
{ N.C<Mo
System.err.println("File Length is not known!"); zR/d:P?
} 'H2TwSbIXI
else if(nFileLength == -2) iIq='xwa9
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System.err.println("File is not access!"); .Y!*6I
} +$_W4lf|E2
else FFl[[(`%D
{ <J@Y=#G$2
for(int i=0;i<nStartPos.length;i++) "P=OpFV
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); 1vBR\!d?7
} l;:
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for(int i=0;i<nEndPos.length-1;i++) 'D8WNZ8Q
{ w1/pwzn
nEndPos = nStartPos[i+1]; QF(.fq8, U
} |k:MXI
nEndPos[nEndPos.length-1] = nFileLength; gk\IivPb
} 3hr&