/* *Y'nDv6_P
**SiteFileFetch.java 6%?bl{pNn
*/ pD;'uEFBQ
package NetFox; 3Run.Gv\
import java.io.*; eFJ .)Z
import java.net.*; k<xPg5
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public class SiteFileFetch extends Thread { MtWzGE=?
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SiteInfoBean siteInfoBean = null; //文件信息Bean -CePtq`
long[] nStartPos; //开始位置 ++{,1wY\
long[] nEndPos; //结束位置 sv}k_6XgY
FileSplitterFetch[] fileSplitterFetch; //子线程对象 "`WcE/(
long nFileLength; //文件长度 N_<wiwI<
boolean bFirst = true; //是否第一次取文件 21k^MZ
boolean bStop = false; //停止标志 qk Hdr2
File tmpFile; //文件下载的临时信息 ICq
DataOutputStream output; //输出到文件的输出流 vxN,oa{hf
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) &?[uY5Mk
public SiteFileFetch(SiteInfoBean bean) throws IOException VSf<(udGr
{ z#DgoA
siteInfoBean = bean; @ ={Hx$zL
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); uB&um*DP
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); }\
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if(tmpFile.exists ()) QY)hMo=|o8
{ Nj~3FL
bFirst = false; '+8`3['
read_nPos(); 5}v<?<l9\
} fm u;Pb]r
else wgETL|3-
{ <4{Jm8zJ
nStartPos = new long[bean.getNSplitter()]; O%hmGW4
nEndPos = new long[bean.getNSplitter()]; S!Z2aFj
} Y:;]qoF
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public void run() |O!G[|/3
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//获得文件长度 )0\"8}!
//分割文件 .5s#JL
//实例FileSplitterFetch v-utDQT3
//启动FileSplitterFetch线程 F4R0A6HL
//等待子线程返回 :U{$G(
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try{ p#QR^|7"
if(bFirst) m ?)k&{I
{ l(~i>iQ
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nFileLength = getFileSize(); c04;2gR
if(nFileLength == -1) g]mR;T3
{ vB<2f*U
System.err.println("File Length is not known!"); V1]QuQ{&s
} `|2p1Ei
else if(nFileLength == -2) {0Jpf[.f
{ R5b!Ao
System.err.println("File is not access!"); y$Rh$eK
} SJai<>k h
else FpYeuH%
{ Cx[Cst`
for(int i=0;i<nStartPos.length;i++) FPC^-mD
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); "?n;dXYSi
} cAQ_/>
for(int i=0;i<nEndPos.length-1;i++) h(4&!x
{ l2h1CtAU
nEndPos = nStartPos[i+1]; j0.E!8Ae{
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nEndPos[nEndPos.length-1] = nFileLength; 4R&e5!
} |e+r|i]
} 'u84d=*l
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//启动子线程 I*`;1+`
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; %h9'kJzNk
for(int i=0;i<nStartPos.length;i++) FE4P
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{ xhw0YDGzf
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), >ca w
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 3:mZ1+
nStartPos,nEndPos,i); T/nG\WZbZn
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ~LU$ n o^
fileSplitterFetch.start(); ('oA{,#L
} ~gA^tc3G
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ?d5_{*]+v
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 9?Q0O\&uP
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", ,(v=ZeI
nEndPos = " + nFileLength); 4OTrMT$y
// fileSplitterFetch[nPos.length-1].start(); 4sM9~zC5
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//等待子线程结束 w%uM=YmuT
//int count = 0; kj]m@mS[
//是否结束while循环 f|NWn`#bY
boolean breakWhile = false; $l/w.z
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while(!bStop) g=Bge)
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write_nPos(); N+CcWs!E
Utility.sleep(500); >)8<d3m
breakWhile = true; N D1'XCN
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for(int i=0;i<nStartPos.length;i++) -/LB-t
{ V1
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if(!fileSplitterFetch.bDownOver) -oB`v'
{ Mp_SL^g|
breakWhile = false; kPezR:
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break; 7z9[\]tt
} K'zBDrkW-x
} (&oT6Ji
if(breakWhile) <hB~|a<#
break; Ehf3L |9
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//count++; NJTC+`Hm
//if(count>4) 32ae? d
// siteStop(); J t,7S4JL
} ?L~Z]+-
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System.err.println("文件下载结束!"); ~7!J/LHg
} =De%]]>
catch(Exception e){e.printStackTrace ();} 7"r7F#D=G
} >,` /
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//获得文件长度 ~$f+]7
public long getFileSize() <v"C`cga
{ !+.|T9P
int nFileLength = -1; 3R?7&oXvH
try{ zVs_|x="
URL url = new URL(siteInfoBean.getSSiteURL()); DFs
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HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); _VR Sdr5
httpConnection.setRequestProperty("User-Agent","NetFox"); )}?'1ciHI
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int responseCode=httpConnection.getResponseCode(); } VE[W
if(responseCode>=400) F]W'spF,
{ >#R<