/* a?jUm.
**SiteFileFetch.java |eykb?j`
*/ i0Ejo;dB
package NetFox; LvtHWt
import java.io.*; ve($l"T
import java.net.*; ?lq
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public class SiteFileFetch extends Thread { >RJjm&M
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SiteInfoBean siteInfoBean = null; //文件信息Bean ,1/O2aQ%\0
long[] nStartPos; //开始位置 Em)U`"j/9
long[] nEndPos; //结束位置 Ln:6@Ok)5%
FileSplitterFetch[] fileSplitterFetch; //子线程对象 oCfO:7
long nFileLength; //文件长度 p3r("\Za,
boolean bFirst = true; //是否第一次取文件 dUN{@a\R0
boolean bStop = false; //停止标志 B@cC'F#G
File tmpFile; //文件下载的临时信息 }`KK
DataOutputStream output; //输出到文件的输出流 fF6bEJl3
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) QN47+)cVt"
public SiteFileFetch(SiteInfoBean bean) throws IOException F+o4f3N
{ (
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siteInfoBean = bean; m)AF9#aT2
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); @k=UB&?I
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); Q$+6f,m#W
if(tmpFile.exists ()) y0vJ@ %`
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bFirst = false; [|".j#ZlK
read_nPos(); 7Tb[sc'
}
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nStartPos = new long[bean.getNSplitter()]; R
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nEndPos = new long[bean.getNSplitter()]; Q":,oZ2
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public void run() ?(Se$iTZ
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//获得文件长度 CvHE7H|-{
//分割文件 rJZR8bo
//实例FileSplitterFetch arIEd VfNa
//启动FileSplitterFetch线程 +0}z3T1L
//等待子线程返回 ;NOmI+t0w&
try{ =cpUc]~
if(bFirst) 4#CHX^De
{ +GJPj(S
nFileLength = getFileSize(); jme`Tyd
if(nFileLength == -1) @(bg#
{ Q,K$)bM
System.err.println("File Length is not known!"); yky%+@2q
} rFUR9O.{E
else if(nFileLength == -2) JM1O7I
{ H;R~d%!b
System.err.println("File is not access!"); C}#$wge
} t"zi'9$t
else E!'6vDVC:
{ Sn
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for(int i=0;i<nStartPos.length;i++) MyZVx|7E
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); Jz}`-fU`
} ;L,i">_%u[
for(int i=0;i<nEndPos.length-1;i++) %s497'
{ q{&\nCy
nEndPos = nStartPos[i+1]; O\CnKNk,
} ta6>St7.
nEndPos[nEndPos.length-1] = nFileLength; lb$_$+@Vr
} RIQ-mpg~(k
} 5 w(nttYH
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//启动子线程 l$1NI#&
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; IU<lF) PF$
for(int i=0;i<nStartPos.length;i++) ; PncJe5x
{ ?JG^GD7D
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), _1Q6FI5iR
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), cnS;9=,&
nStartPos,nEndPos,i); IITUM)
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Pz34a@%"
fileSplitterFetch.start(); |_+#&x
} d)S`.Q
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), aZ$5"
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); BPa,P_6(
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", ?m5EXe
nEndPos = " + nFileLength); ~+j2a3rv-{
// fileSplitterFetch[nPos.length-1].start(); 9Vqy<7i1
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//等待子线程结束 4d%0a%Z
//int count = 0; PxgJ7d
//是否结束while循环 ]/kpEx
boolean breakWhile = false; A+!,{G
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while(!bStop) 8 eK 8-R$
{ O>pv/Ns
write_nPos(); t[J=8rhER
Utility.sleep(500); Vi: ^bv
breakWhile = true; (w#t V*
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for(int i=0;i<nStartPos.length;i++) CxeW5qc
{ qxb]UV,R
if(!fileSplitterFetch.bDownOver) 4")`}T
{ (bQ3:%nD
breakWhile = false; GkX Se)#p
break; t+}wTis
} GE(~d '
} >9rZVNMU
if(breakWhile) B Z|A&;
break; BH1h2OEe#
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//count++; \$ipnQv
//if(count>4) $GFR7YC 7
// siteStop(); sde>LZet/
} v8*)^-Fx
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System.err.println("文件下载结束!"); .Zczya
} >PSO]%mE
catch(Exception e){e.printStackTrace ();} :${tts2g
} ?:J_+?{E
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//获得文件长度 ##=$$1Ki
public long getFileSize() uy's eJ
{ [&