/* XE;'K`%
**SiteFileFetch.java J0t_wMJa
*/ .F\[AD 5
package NetFox; Iq{/-,v
import java.io.*; AZ\f6r{
import java.net.*; J'wJe,
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public class SiteFileFetch extends Thread { 0yb9R/3.
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SiteInfoBean siteInfoBean = null; //文件信息Bean Pn?gB}l
long[] nStartPos; //开始位置 }JUc!cH8z
long[] nEndPos; //结束位置 ,OkI0[
FileSplitterFetch[] fileSplitterFetch; //子线程对象 I3ugBLxVC3
long nFileLength; //文件长度 iqWkhJphv
boolean bFirst = true; //是否第一次取文件 _Q b].~
boolean bStop = false; //停止标志 J!QIMA4{
File tmpFile; //文件下载的临时信息 vcP_gJz
DataOutputStream output; //输出到文件的输出流 7VLn$q]:
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) R0GD9
public SiteFileFetch(SiteInfoBean bean) throws IOException Jg.^h1>x
{ [XP\WG>s
siteInfoBean = bean; gU@R
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); !H9zd\wc
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); LZJFp@
if(tmpFile.exists ()) Kj-zEl
{ ndvt
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bFirst = false; AFsYP/g]
read_nPos(); 8xoC9!xt
} K8v@)
else a,xy38T<
{ w:~vfdJ
nStartPos = new long[bean.getNSplitter()]; :?)q"hE
nEndPos = new long[bean.getNSplitter()]; H[?l)nZ}
} anH ]]
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}
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public void run() l%
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//获得文件长度 e,*@+E\4
//分割文件 aL8Z|*
//实例FileSplitterFetch %)o;2&aD
//启动FileSplitterFetch线程 LP?*RrM
//等待子线程返回 z
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try{ tSTl#xy
if(bFirst) 8`|Z9umW*
{ /!hxW}>^
nFileLength = getFileSize(); NU3s^ 8\(
if(nFileLength == -1) f!B\X*|
{ [QwqP=-6
System.err.println("File Length is not known!"); V$ "]f6
} UrdSo"%
else if(nFileLength == -2) ERfSJ
{ 5RKs2eV
System.err.println("File is not access!"); bZgFea_>i
} P#,g5
else 80LN(0?x
{ 2KNs,4X@
for(int i=0;i<nStartPos.length;i++) o"qG'\x
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); e8)8QmB{o
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for(int i=0;i<nEndPos.length-1;i++) kM76?M
{ o4YF,c+>q
nEndPos = nStartPos[i+1]; ]QF*\2b-I2
} $KsB'BZy
nEndPos[nEndPos.length-1] = nFileLength; 8y]{I^z}
} .h@bp1)l
} U;Yw\&R