/* ;h#nal>w@S
**SiteFileFetch.java }c;h:CE#
*/ s[tFaB 1
package NetFox; 1`@rAA>h'
import java.io.*; v}^
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import java.net.*; !Z`xwk"!
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public class SiteFileFetch extends Thread { 3I.0uLjg^
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SiteInfoBean siteInfoBean = null; //文件信息Bean -nKBSls
long[] nStartPos; //开始位置 J6*B=PX=(
long[] nEndPos; //结束位置 Ykt(%2L
FileSplitterFetch[] fileSplitterFetch; //子线程对象 <B=!ZC=n
long nFileLength; //文件长度 ey3;rY1
boolean bFirst = true; //是否第一次取文件 hXM2B2[
boolean bStop = false; //停止标志
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File tmpFile; //文件下载的临时信息 A}Gj;vaw
DataOutputStream output; //输出到文件的输出流 ^p !4`S
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) m8ydX6~max
public SiteFileFetch(SiteInfoBean bean) throws IOException lITZ|u
{ ?$\y0lHw/7
siteInfoBean = bean; (!&g (l;
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 26\*x
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 7LdNE|IP
if(tmpFile.exists ()) ne\N1`AU
{ y$7@ ~NH,d
bFirst = false; rXR}]|;>
read_nPos(); L7&|
} L~~Dj:%uq
else gHzjI[WI
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nStartPos = new long[bean.getNSplitter()]; >5!/&D.q
nEndPos = new long[bean.getNSplitter()]; J"dp?i
} ALY%
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} 59I}
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public void run() #O.-/&Z
{ b1{XGK'
//获得文件长度 pd{;`EW|
//分割文件 >
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//实例FileSplitterFetch 'd@Vusq}2
//启动FileSplitterFetch线程 umWZ]8
//等待子线程返回 7F{=bL
try{ @tLoU%
if(bFirst) 4)3!n*I
{ y[!4M+jj
nFileLength = getFileSize(); 4';]fmf@[i
if(nFileLength == -1) >MIp r
{ ~-w
System.err.println("File Length is not known!"); <#9zc'ED:
} /@bLc1"
else if(nFileLength == -2) ~Zd n#z\
{ r,4V SyZF\
System.err.println("File is not access!"); 9/k?Lv
} (d C<N3
else &sx|sLw)
{ fV.43E
for(int i=0;i<nStartPos.length;i++) zA/W+j$:
{ pPG@_9qf
nStartPos = (long)(i*(nFileLength/nStartPos.length)); `|^<y.-6
} E4'D4@\W
for(int i=0;i<nEndPos.length-1;i++) '#.:%4
{ rS
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nEndPos = nStartPos[i+1];
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} uXNf)?MpA
nEndPos[nEndPos.length-1] = nFileLength; VM3H&$d(h
} NOa.K)^k
} NB&u^8b
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//启动子线程 IfZaK([
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; +Hb6j02#
for(int i=0;i<nStartPos.length;i++) G\H@lFh
{ @$79$:q N
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), j1>77C3
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ^~5tntb.
nStartPos,nEndPos,i); NoJo-vo*
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); -7">A~c
fileSplitterFetch.start(); .6E7 R
} AMYoSc
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), A_%}kt
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); gHlahg
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", ,9#G/nF
nEndPos = " + nFileLength); k-
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// fileSplitterFetch[nPos.length-1].start(); " I@Z:[=2
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//等待子线程结束 pKMf#)qm
//int count = 0; 7@vcQv
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//是否结束while循环 *k'9 %'<
boolean breakWhile = false; j86s[Dty
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while(!bStop) BsB}noN}
{ U&Ay3/
write_nPos(); \+MR`\|3
Utility.sleep(500); aG\m3r
breakWhile = true; 0{PK]qp7
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for(int i=0;i<nStartPos.length;i++) kQIWDN
{ fINM$ 6
if(!fileSplitterFetch.bDownOver) cx2s|@u0
{ $Y,]D*|"K
breakWhile = false; $vy.BYFm
break; #OWwg`AWv
} ~ilbW|s?=k
} (p14{
if(breakWhile) `s:| 4;.
break; .(S,dG0P
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//count++; 66'TdF]"
//if(count>4) h)wR[N]n
// siteStop(); ~:)$~g7>b
} :M3l#`4Q
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System.err.println("文件下载结束!"); u'K<-U8H
} >/bl
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catch(Exception e){e.printStackTrace ();} lGLZIp
} RFK
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//获得文件长度 S|]~,l2]}
public long getFileSize() Gs?W7}<$
{ 9$DVG/
int nFileLength = -1; %q*U[vv
try{ ?$n<