/* Rhh.fV3
**SiteFileFetch.java {7 nz:f
*/ 6Xt c3
package NetFox; $`Aps7A
import java.io.*; q]m$%>
import java.net.*; Iyt.`z
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public class SiteFileFetch extends Thread { h=ko_/<
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SiteInfoBean siteInfoBean = null; //文件信息Bean s!/Q>A
long[] nStartPos; //开始位置 s C?-L
long[] nEndPos; //结束位置 UjS,<>fm
FileSplitterFetch[] fileSplitterFetch; //子线程对象 /@K1"/fqH
long nFileLength; //文件长度 o,=dm@j
boolean bFirst = true; //是否第一次取文件 I>spJ5ls
boolean bStop = false; //停止标志 )dI `yf
File tmpFile; //文件下载的临时信息 e}W|wJ):j@
DataOutputStream output; //输出到文件的输出流 MrpT5|t
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) x5W.
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public SiteFileFetch(SiteInfoBean bean) throws IOException !a9/8U_>XF
{ >66v+
siteInfoBean = bean; >/DlxYG?
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); IVSd,AR7yY
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); YW^sf,zQ
if(tmpFile.exists ()) %ZJ;>a#
{ ~.8p8\H
bFirst = false; 1Ozy;;\-9
read_nPos(); LT)G"U~
} ]08
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else
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{ WB=|Ty~l
nStartPos = new long[bean.getNSplitter()]; Cb;49;q
nEndPos = new long[bean.getNSplitter()]; *`bAu *
} 4'0rgS
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} NEX{vZkgw
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public void run() .06[*S
{ w:o,mzuXK
//获得文件长度 ^EmI;ks
//分割文件 >^
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//实例FileSplitterFetch I?%iJ%
//启动FileSplitterFetch线程
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//等待子线程返回 hZLwg7X!
try{ SHP_
if(bFirst) y4~;H{!
{ nn6&`$(Q~
nFileLength = getFileSize(); Cw&U*H
if(nFileLength == -1) Tjza3M
{ >TZyax<:
System.err.println("File Length is not known!"); = $awUy
} g:CMIe4
else if(nFileLength == -2) RS[>7-9
{ X\'+);Z
System.err.println("File is not access!"); Kq2,J&Ca3
} ^%k[YJtB=i
else KcNh3CR
{ V<G=pPC'H
for(int i=0;i<nStartPos.length;i++) $&[}+??
{ k\wI^D
nStartPos = (long)(i*(nFileLength/nStartPos.length)); h[I~D`q)v
} *S=zJyAO
for(int i=0;i<nEndPos.length-1;i++) v6`TbIq%
{ #&ZwQw
nEndPos = nStartPos[i+1]; 2';f8JLY
} 0'4V*Y
nEndPos[nEndPos.length-1] = nFileLength; fI1,L"
} @`Foy
} ]-G10p}Ph-
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//启动子线程 q\a'pp9d
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 6l-V%3-
for(int i=0;i<nStartPos.length;i++) *T{P^q.s~[
{ o$+"{3svw?
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), x*2' I
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), !/Wp0E'A
nStartPos,nEndPos,i); or{X{_X7
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); %>Y86>mVz
fileSplitterFetch.start(); ]S#m
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} beCTOmC
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ~]&,v|g&
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); l
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", -<Zs7(
nEndPos = " + nFileLength); S 8$kxQg
// fileSplitterFetch[nPos.length-1].start(); p?,:
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fd}
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//等待子线程结束 yDW$v/j.|
//int count = 0; ^+20e3 ~Y
//是否结束while循环 {(MC]]'?
boolean breakWhile = false; _.y0QkwV
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while(!bStop) c3$h-M(jVJ
{ =UW!
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write_nPos(); uNSbAw3
Utility.sleep(500); dJ}E,rW}
breakWhile = true; 4PzCm k
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for(int i=0;i<nStartPos.length;i++) /?wH1 ,
{ u!VAAX
if(!fileSplitterFetch.bDownOver) =Vm"2g,aA
{ T2^0Q9E?
breakWhile = false; ZW0gd7Wh
break; 43 h0i-%1
} xVn"xk
} ,AO]4Ec
if(breakWhile) 42wa9UL<Ka
break; RiX~YLeM
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//count++; )|?s!rw +
//if(count>4) *6trK`tx^
// siteStop(); /X_g[*]?
}
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System.err.println("文件下载结束!"); J<4egk4
} oSOO5dk:z
catch(Exception e){e.printStackTrace ();} NY`$D}Bi
} ,>rr|O
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