/* 'H!XUtFs"
**SiteFileFetch.java bjS{(
*/ /Q )\ +
package NetFox; h.fq,em+H
import java.io.*; { "E\Jcjl\
import java.net.*; GH
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public class SiteFileFetch extends Thread { {_dvx*M
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SiteInfoBean siteInfoBean = null; //文件信息Bean 3BLq CZ
long[] nStartPos; //开始位置 Ca3~/KrM
long[] nEndPos; //结束位置 ]s748+
FileSplitterFetch[] fileSplitterFetch; //子线程对象 ?' je)F
long nFileLength; //文件长度 IIqUZJ
boolean bFirst = true; //是否第一次取文件 &VcV$8k
boolean bStop = false; //停止标志 C8 \^#5
File tmpFile; //文件下载的临时信息 Tb-F]lg$
DataOutputStream output; //输出到文件的输出流 w`=\5Oa .G
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) >"<Wjr8W!$
public SiteFileFetch(SiteInfoBean bean) throws IOException bs'n+:X`
{ f
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siteInfoBean = bean; 4H<lm*!^
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); jNy.Y8E&
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); Hq 188<
if(tmpFile.exists ()) Xs?o{]Fe
{ D#)b+7N-
bFirst = false; BF <ikilR
read_nPos(); ?pZOeqqu$
} ]g&TKm
else GM<-&s!Uj
{ 7\q~%lDE
nStartPos = new long[bean.getNSplitter()]; 8&aq/4:q0
nEndPos = new long[bean.getNSplitter()]; \'bzt"f$j
} v}Fr@0%
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} t<viX's
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public void run() W{gb:^;zb
{ :4%k9BGAj"
//获得文件长度 |H+Wed|
//分割文件 J9[r|`gJ(
//实例FileSplitterFetch :Zz
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//启动FileSplitterFetch线程 uU25iDn
//等待子线程返回 j,dR,N d
try{ iW /}#
if(bFirst) (=@h23
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{ >
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nFileLength = getFileSize(); >J>[& zS
if(nFileLength == -1) FG*r'tC~r
{ /RC7"QzL
System.err.println("File Length is not known!"); sp*v?5lW
} /d<P-!fK
else if(nFileLength == -2) s}% M4
{ 6b \&~b@T
System.err.println("File is not access!"); 'u b@]ru|
} A=wh@"2
else +&2%+[nBZ
{ ?m?::R H
for(int i=0;i<nStartPos.length;i++) DZPPJ2 }
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); fDU!~/#
} W]5w \
for(int i=0;i<nEndPos.length-1;i++) 7Da`
{ o$lM$E:
nEndPos = nStartPos[i+1]; d,n 'n
} ]F'e
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nEndPos[nEndPos.length-1] = nFileLength; >e[i5
} P! #[mio
} [}0haTYc4
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//启动子线程 l#Y,R 0
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; y ~!Zg}o
for(int i=0;i<nStartPos.length;i++)
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{
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), _C[q4?
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), XXn67sF/
nStartPos,nEndPos,i); ~;{;,8!)
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); CD( :jM?
fileSplitterFetch.start();
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} uH- l%17
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Cl8Cg~2
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); /zVOK4BqN+
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", {dMsz
nEndPos = " + nFileLength); }.m<
// fileSplitterFetch[nPos.length-1].start(); G[I"8iS,
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//等待子线程结束 W_(j3pV?Ml
//int count = 0; lbl?k5
//是否结束while循环 9BBmw(M}
boolean breakWhile = false; o5uph=Q{
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while(!bStop) " h~Zu
{ tKx~1-
write_nPos(); Nk VK
Utility.sleep(500); ]e>w}L(gV
breakWhile = true; }1i`6`y1
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for(int i=0;i<nStartPos.length;i++) Yz"#^j}Kg
{ /saIs%(fU
if(!fileSplitterFetch.bDownOver) a PfO$b:
{ tla
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breakWhile = false; QIvVcfM^
break; hl (hJfp
} ju8q?Nyhs
} ujq=F
if(breakWhile) BBRR)
break; )E@.!Ut4o
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//count++; `nv~NLkl
//if(count>4) 7#ibN!
// siteStop(); 5Y'qaIFR
} |w1Bq
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System.err.println("文件下载结束!"); w?k>:,'[
} zrL$]Oy}x
catch(Exception e){e.printStackTrace ();} K&Z