/* gqiXmMm:9
**SiteFileFetch.java )@QJ
*/ -R+zeu(e'
package NetFox; <Q`&o@I
import java.io.*; 9$WJ"]
import java.net.*; =v2%Vs\7k
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public class SiteFileFetch extends Thread { %&] 1FhL
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SiteInfoBean siteInfoBean = null; //文件信息Bean &H;8QZ8uw
long[] nStartPos; //开始位置 `bgb*Yaod
long[] nEndPos; //结束位置 ;i)KHj'
FileSplitterFetch[] fileSplitterFetch; //子线程对象 2/Nq'
long nFileLength; //文件长度 3l:XhLOj
boolean bFirst = true; //是否第一次取文件 6OUvrfC(H
boolean bStop = false; //停止标志 mVf.sA8
File tmpFile; //文件下载的临时信息 mX_)b>iW
DataOutputStream output; //输出到文件的输出流 1 tfYsg=O
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) #a}N"*P
public SiteFileFetch(SiteInfoBean bean) throws IOException )q+4k m6
{ AqYxWk3>
siteInfoBean = bean; X\2_;zwf
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); @@pq'iRn
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); \XH@b6{
if(tmpFile.exists ()) VyZV(k
{ +t\^(SJ6
bFirst = false; sWxK~Yg
read_nPos(); ?z.Isvn
} b :\D\X
else Zw=G@4xoU
{ jn=ug42d
nStartPos = new long[bean.getNSplitter()]; Lt<oi8'N
nEndPos = new long[bean.getNSplitter()]; -{x(`9H;
} |'w^ n
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} edN8-P(
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public void run() H1UL.g%d=
{ JLW$+62
//获得文件长度 K`+vfqX
//分割文件 ?[SVqj2-
//实例FileSplitterFetch &l^n4
//启动FileSplitterFetch线程 BR3mAF
//等待子线程返回 -uR{X G. D
try{ mTd<2Hy
if(bFirst) #eEvF
{ YRa4W.&Yn
nFileLength = getFileSize(); [t}):}~F|
if(nFileLength == -1) 2]Fu
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{ GVp
System.err.println("File Length is not known!"); hmzair3X
} q!*MH/R
else if(nFileLength == -2) c,BAa*]K
{ '5WN,Vy8.
System.err.println("File is not access!"); i+U51t<
} z\$;'
else |0w~P
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{ 59MR|Jt
for(int i=0;i<nStartPos.length;i++) cju@W] !
{ 32KR--mn%
nStartPos = (long)(i*(nFileLength/nStartPos.length)); PJwEA
} .HD ebi
for(int i=0;i<nEndPos.length-1;i++) a(Sv,@/
{ d<Dn9,G
nEndPos = nStartPos[i+1]; Lw*1 .~
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nEndPos[nEndPos.length-1] = nFileLength; BD4"pcr
} MgP{W=h2
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//启动子线程 ORtg>az\%
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; =F[lg?g
for(int i=0;i<nStartPos.length;i++) R`3x=q
{ JJNmpUJ
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), [J:zE&aj
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), !G>(j
nStartPos,nEndPos,i); Zih5/I
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 5F03y`@ u
fileSplitterFetch.start(); ZpTi:3>
} 3Pa3f >}-
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ])68wqD
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 9dw0<qw1%
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", ?:JdRnH \
nEndPos = " + nFileLength); :7k`R62{
// fileSplitterFetch[nPos.length-1].start(); j Q^Yj"6
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//等待子线程结束 , Z4p0M
//int count = 0; Nq
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//是否结束while循环 6BHPzv+Y
boolean breakWhile = false; S#hu2\9D,
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while(!bStop) %N1T{
{ iUpSN0XkMM
write_nPos(); KwQXA'
Utility.sleep(500); |oFI[PE
breakWhile = true; O{*GW0}55
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for(int i=0;i<nStartPos.length;i++) v(k*A:
{ ~|qXtds$
if(!fileSplitterFetch.bDownOver) Do(PdF6A
{ 'H
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breakWhile = false; ;7)OSGR
break; AV9:O{
} P)4x
} $<14JEU
if(breakWhile) XuA0.b%
break; e ^-3etx
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//count++; A>[hC{
//if(count>4) '%3u%;"
// siteStop(); S]tkz*w0*
} `7F@6n
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System.err.println("文件下载结束!"); zmdWVFVv
} 7d%A1}Bq$
catch(Exception e){e.printStackTrace ();} rn[$x(G
} ,WzG.3^m
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//获得文件长度 HarYV :
public long getFileSize() '"'D.,[W2
{ (xjqB{U
int nFileLength = -1; 6j?FRs
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URL url = new URL(siteInfoBean.getSSiteURL()); Bd/}
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HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); i=x.tsJ:hB
httpConnection.setRequestProperty("User-Agent","NetFox"); VM=hQYe
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int responseCode=httpConnection.getResponseCode(); PjiNu.>2(
if(responseCode>=400) dw'<" +zO
{ 6sO
processErrorCode(responseCode); @Pd)
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return -2; //-2 represent access is error .ou!g&xu
} ab8oMi`z
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String sHeader; ecM4]U
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for(int i=1;;i++) <W=~UUsn
{ K'a#M g
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); 'Wo?%n
//Utility.log(in.readLine()); *1 n;p)K
sHeader=httpConnection.getHeaderFieldKey(i); VyB\]EBu
if(sHeader!=null) -G(3Y2
{ 4Z<]4:o
if(sHeader.equals("Content-Length")) Kx(76_XD
{ z"
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nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); %AzPAWcN
break; PU,6h}
} H={O13
} 6M
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else .rt8]%
break; 7F>gj
} 0BbiQXU
} !$%/
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catch(IOException e){e.printStackTrace ();} vB&F_"/X2
catch(Exception e){e.printStackTrace ();} >C*?17\
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