/*
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**SiteFileFetch.java qFmvc
*/ FqiCzP4
package NetFox; w}<BO>
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import java.io.*; \LRno3
import java.net.*; A>^\jIB>
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public class SiteFileFetch extends Thread { tv)x(MX
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SiteInfoBean siteInfoBean = null; //文件信息Bean : L`
long[] nStartPos; //开始位置 Zi/l.=9n
long[] nEndPos; //结束位置 0@1AH<
FileSplitterFetch[] fileSplitterFetch; //子线程对象 q@P5c
long nFileLength; //文件长度 wo84V!"A
boolean bFirst = true; //是否第一次取文件 bT>%
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boolean bStop = false; //停止标志 Wx~0_P
File tmpFile; //文件下载的临时信息 uk_?2?>-5
DataOutputStream output; //输出到文件的输出流 0X#tt`;
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) "8VCXD
public SiteFileFetch(SiteInfoBean bean) throws IOException gOa'o<
{ ?3Wh.%n
siteInfoBean = bean; -yOrNir}W
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); .hlr)gF&)
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); VB*$lxX
if(tmpFile.exists ()) zl46E~"]x
{ y[S5
bFirst = false; UDV,c o
read_nPos(); nCEt*~t9VE
} NFPW#-TF
else @!^c@
{ I(/W+o
nStartPos = new long[bean.getNSplitter()]; B[ooT3V
nEndPos = new long[bean.getNSplitter()]; R>[2}R30
} o87. (
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} "ji4xy
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public void run() W'rft@J$
{ wH~Q4)#=o
//获得文件长度 ]q7\
//分割文件 aDR<5_Yb
//实例FileSplitterFetch k&ujr:)5Y5
//启动FileSplitterFetch线程 ( }5k"9Z
//等待子线程返回 _Qs)~
try{ /s
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if(bFirst) Fkj\U^G
{ +wwpaR`
nFileLength = getFileSize(); J`;G9'n2
if(nFileLength == -1) ,ju 1:`
{ L{Epkay,{
System.err.println("File Length is not known!"); :51Q~5k4
} P~iu|j
else if(nFileLength == -2) cysYjuI i
{ F4>}mIA
System.err.println("File is not access!"); ItHKpTer
} Lo @mQ
else 0@{K'm/
{ X !NH?0)
for(int i=0;i<nStartPos.length;i++) ;2kiEATQ
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); "lx}.
} o\1"ux;b
for(int i=0;i<nEndPos.length-1;i++) `Z>4}<~+
{ :}FMauHh
nEndPos = nStartPos[i+1]; $jo}?Y+
} Y(78qs1w
nEndPos[nEndPos.length-1] = nFileLength; 37x2fnC
} d"uR1rTk
} FVT_%"%C9
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//启动子线程 ,sP7/S)FR
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; e(x1w&8dB
for(int i=0;i<nStartPos.length;i++) ["Ep.7=SU
{ GKH7Xx(
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), F N;X"it.
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), Erl"X}P
nStartPos,nEndPos,i); nsij;C
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); i*..]!7e
fileSplitterFetch.start(); z<ptrH
} 0wB ?U~
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), nBjfR2TuF
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ,*?bET
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", lLxKC7b
nEndPos = " + nFileLength); cgc|G
// fileSplitterFetch[nPos.length-1].start(); o~<37J3).
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//等待子线程结束 EN` --^
//int count = 0; QL"fC;xUn,
//是否结束while循环 ?Q="w5OOD
boolean breakWhile = false; 8<Asg2]6
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while(!bStop) [IF3,C
{ ;gTdiwfgZ=
write_nPos(); <tMiI)0%
Utility.sleep(500); sKB])mf]
breakWhile = true; |L.QIr,jCC
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for(int i=0;i<nStartPos.length;i++) 2TmQaDu%b
{ )}9Ef"v|
if(!fileSplitterFetch.bDownOver) ^,
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{ L9Z:>i?
breakWhile = false; L qMH]W
break; ]MfT5#(6h
} LtJ$ZE^GB
} G?&0Z++
if(breakWhile) jAfUz7@
break; tmDI2Z%7
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//count++; 5Lo{\7%
//if(count>4) )/HSt%>
// siteStop(); &`0y<0z
} Z 3m5D K
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System.err.println("文件下载结束!"); -i:Zi}f
} {kD|8["Ie'
catch(Exception e){e.printStackTrace ();} R}8!~Ma`|
} `LVItP(GUM
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//获得文件长度 CSRcTxH
public long getFileSize() z,87;4-
{ }N#jA yp!
int nFileLength = -1; uwsGtgd&
try{ Z`o}xV
URL url = new URL(siteInfoBean.getSSiteURL()); [~`;
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HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); A 7'dD$9
httpConnection.setRequestProperty("User-Agent","NetFox"); J)oa:Q
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int responseCode=httpConnection.getResponseCode(); O`g44LW2n
if(responseCode>=400) xqmP/1=NO
{ Xnt`7L<L
processErrorCode(responseCode); zq80}5%2CT
return -2; //-2 represent access is error 2BS2$#c>
} S)C =Q~&
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String sHeader; r4@!QR<h
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for(int i=1;;i++) &"BmCDOq
{ ?=dyU(
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); v:PNt#Ta
//Utility.log(in.readLine()); ELk$lm&