/* O\64)V
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**SiteFileFetch.java .c[v /SB]
*/ hhTM-D1Ehs
package NetFox; =R08B)yR
import java.io.*; Rw$>()}H8
import java.net.*; $J>J@4
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public class SiteFileFetch extends Thread { k!gft'iU
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SiteInfoBean siteInfoBean = null; //文件信息Bean kKV`9&dZe
long[] nStartPos; //开始位置 sLE@Cm]k
long[] nEndPos; //结束位置 "y_A xOH
FileSplitterFetch[] fileSplitterFetch; //子线程对象 &;~x{q]3
long nFileLength; //文件长度 o}XbFLn
boolean bFirst = true; //是否第一次取文件 b(lC7Xm
boolean bStop = false; //停止标志 |OXufV?I
File tmpFile; //文件下载的临时信息 5B[kZ?>
DataOutputStream output; //输出到文件的输出流 a'f0Wv0%"
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) [p%@ pV
public SiteFileFetch(SiteInfoBean bean) throws IOException MLV_I4o
{ l65-8
siteInfoBean = bean; Cd:ofv/3
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); tBNkVh(c
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); %Lec\(-4L
if(tmpFile.exists ()) $a|DR
{ 6e1/h@p\7
bFirst = false; %4:tRF
read_nPos(); o|\0IG(\
} u:+wuyu
else aB9Pdut
{ ?UAB}CjY
nStartPos = new long[bean.getNSplitter()]; *5$$C&@o9
nEndPos = new long[bean.getNSplitter()]; M<t>jM@'A#
} ,LjB%f[
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} V j\1HQ
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public void run() ='1J&w~7
{ :IFTiq5a;
//获得文件长度 -1ke3
//分割文件 a}3sG_(Y
//实例FileSplitterFetch T<*i($
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//启动FileSplitterFetch线程 ~Uw**PT3M
//等待子线程返回 6,j6,Q(67
try{ JO:40V?op
if(bFirst) k^3|A3A
{ `3!ERQU
nFileLength = getFileSize(); 38IVSK_
if(nFileLength == -1) #t
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{ {K-]nh/
System.err.println("File Length is not known!"); d[+ xLa
} [4:_6vd7X
else if(nFileLength == -2) V#;6<H"
{ \S(:O8_"68
System.err.println("File is not access!"); HFD5*Z~M
} )Yvf9dl
else $ig%YB
{ 7dl]f#uZU
for(int i=0;i<nStartPos.length;i++) JV|GEn\@N
{ ^E&':6(
nStartPos = (long)(i*(nFileLength/nStartPos.length)); FHVZ/ e
} "R-1G/
for(int i=0;i<nEndPos.length-1;i++) yBKkx@o#z
{ MIPmsEdBi
nEndPos = nStartPos[i+1]; "|{O%X
} pqPhtWi%PJ
nEndPos[nEndPos.length-1] = nFileLength; =T$-idx1l
} k36%n
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} MR$Bl"d
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//启动子线程 3R%'<MV|
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; (,eH*/~/
for(int i=0;i<nStartPos.length;i++) mjbr}9
{ a%>p"4WL
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Uv,_VS(
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), D'e'xU
nStartPos,nEndPos,i); "=I
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Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); lJ!+n<K+
fileSplitterFetch.start(); EJ P##eGx
} olzP=08aaV
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), I^'kt[P'FZ
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1);
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", SS@F:5),
nEndPos = " + nFileLength); 4CO:*qG)o
// fileSplitterFetch[nPos.length-1].start(); (9x8,f0z
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//等待子线程结束 ]Lq9Ompf(t
//int count = 0; cCN[c)[c|
//是否结束while循环 L_uliBn
boolean breakWhile = false; O#Ab1FQn
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while(!bStop) .3k"1I
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{ _@0>yMZ^
write_nPos(); Jq) !)={
Utility.sleep(500); $aTZC>R
breakWhile = true; /7X:=~m
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for(int i=0;i<nStartPos.length;i++) /)?]vKMiI
{ B3uv>\
if(!fileSplitterFetch.bDownOver) hRZ9[F[[
{ 5S:#I5Wa
breakWhile = false; @~Z:W<X
break; %\ -u&