/* [FB&4>V/
**SiteFileFetch.java 6/|U
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package NetFox; wOjv[@d
import java.io.*; DWuRJ
import java.net.*; ?#4+r_dP
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public class SiteFileFetch extends Thread { .SG0}8gW
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SiteInfoBean siteInfoBean = null; //文件信息Bean 8,=G1c
long[] nStartPos; //开始位置 (%i!%{!]
long[] nEndPos; //结束位置 l#Yx
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FileSplitterFetch[] fileSplitterFetch; //子线程对象 7k>zuzRyF
long nFileLength; //文件长度 Q5g,7ac8L
boolean bFirst = true; //是否第一次取文件 K~USK?Q%
boolean bStop = false; //停止标志 CP +4k.)*O
File tmpFile; //文件下载的临时信息 Wt(Kd5k0'2
DataOutputStream output; //输出到文件的输出流 _O$tuC%
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) o5>/}wIf
public SiteFileFetch(SiteInfoBean bean) throws IOException /n(9&'H<
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siteInfoBean = bean; vsH3{:&;"P
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); [4Y[?)7
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); :H{Bb{B%
if(tmpFile.exists ()) i9KTX%s5^
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bFirst = false; <p09oZ{6
read_nPos(); [qiOd!
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else M]1;
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nStartPos = new long[bean.getNSplitter()]; ?C}sR: K/
nEndPos = new long[bean.getNSplitter()]; ^ZR8s^X
} `y'aH
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} AhR0zg
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public void run() .`Sw,XL5
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//获得文件长度 gd
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//分割文件
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//实例FileSplitterFetch p(.N(c
//启动FileSplitterFetch线程 ^eobp.U
//等待子线程返回 C*a,<`
try{ ;t|,nz4kJ
if(bFirst) ?;_H{/)m
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nFileLength = getFileSize(); cg{Gc]'1#
if(nFileLength == -1) @/LiR>,
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System.err.println("File Length is not known!"); "(<%Ua
} bTiBmS
else if(nFileLength == -2) >{b3>s~T
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System.err.println("File is not access!"); nW11wtiO.
} g**5z'7
else 3 tF:
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for(int i=0;i<nStartPos.length;i++) JxHv<p[
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); TywK\hH
} [T-*/}4$
for(int i=0;i<nEndPos.length-1;i++) w]}f6VlEl
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nEndPos = nStartPos[i+1]; J
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} k&!6fZ)
nEndPos[nEndPos.length-1] = nFileLength; $,@JYLC2
} y`6\L$c
} oJh"@6u6K
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//启动子线程 c`ftd>]
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Sj@15 W
for(int i=0;i<nStartPos.length;i++) jccOsG9;_
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), :WO{x g
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), W/=7jM
nStartPos,nEndPos,i); <