/* aL\PGdgO
**SiteFileFetch.java lf`{zc r:
*/ B9 _X;c
package NetFox; ( ' (K9@}
import java.io.*; N@4w!
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import java.net.*; "m):Y;9iQ?
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public class SiteFileFetch extends Thread { I.(,hFx;
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SiteInfoBean siteInfoBean = null; //文件信息Bean 5+4IN5o]=
long[] nStartPos; //开始位置 -vo})lO
long[] nEndPos; //结束位置 vQG5*pR*w
FileSplitterFetch[] fileSplitterFetch; //子线程对象 zy?|ODM
long nFileLength; //文件长度 b<[Or^X
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boolean bFirst = true; //是否第一次取文件 5+0gR
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boolean bStop = false; //停止标志 [-1^-bb
File tmpFile; //文件下载的临时信息 4/~E4"8
DataOutputStream output; //输出到文件的输出流 x3=A:}t8
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ,$L4dF3
public SiteFileFetch(SiteInfoBean bean) throws IOException aH(J,XY
{ S/hQZHZHg,
siteInfoBean = bean; .&iawz
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); #<"~~2?
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); w>&aEv/f
if(tmpFile.exists ()) / y40(l?
{ 8P\G}
bFirst = false; 5X$ jl;6
read_nPos(); fCn^=8KOZ
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else ij`w} V
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nStartPos = new long[bean.getNSplitter()]; r EE1sy/#
nEndPos = new long[bean.getNSplitter()]; wo{gG?B
} )gUR@V>e2
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public void run() OX0%C.K)hZ
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//获得文件长度 :uS\3toj
//分割文件 :gibfk]C
//实例FileSplitterFetch /)>3Nq4Zx
//启动FileSplitterFetch线程 Ms#M+[a
//等待子线程返回 "Qc7dRmSxm
try{ 1~_{$5[X?
if(bFirst) #$07:UJ
{ B)g[3gQ
nFileLength = getFileSize(); h
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if(nFileLength == -1) .o^l
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System.err.println("File Length is not known!"); M#6W(|V/
} 7hcYD!DS
else if(nFileLength == -2) kd(8I_i@
{ O"9\5(w
System.err.println("File is not access!"); oxA<VWUNT
} zT]8KA
else Af2( 5]
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for(int i=0;i<nStartPos.length;i++) ;7V%#-
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); prF%.(G2)
} g3/W=~r
for(int i=0;i<nEndPos.length-1;i++) 3z?> j]
{ L|xbR#v
nEndPos = nStartPos[i+1]; {rw|# Z>A
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nEndPos[nEndPos.length-1] = nFileLength; I"<\<^B<
} E6ElNgL
} t\,PB{P:J
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//启动子线程 K7:)nv
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fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; )9`qG:b'
for(int i=0;i<nStartPos.length;i++) ,T$U'&;
{
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), zKJ#`OhT
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), )23H1
nStartPos,nEndPos,i); Ckuh:bs
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); x2\qXN/R
fileSplitterFetch.start(); [!#L6&:a8
} 6Y?|w 3f
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ;))+>%SGCt
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); l4YJ c
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", dOH&
nEndPos = " + nFileLength); P* BmHz4KL
// fileSplitterFetch[nPos.length-1].start(); k)=s>&hl
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//等待子线程结束 rcG"o\g@+
//int count = 0; CxW>~O:
//是否结束while循环 T_5H&;a
boolean breakWhile = false; mL{6L?
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while(!bStop) %pL''R9VF
{ .g<DD)`
write_nPos(); #f]SK[nR
Utility.sleep(500); Moza".fiN
breakWhile = true; wc4{)qDE
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for(int i=0;i<nStartPos.length;i++) s*]}QmRpr
{ KRRdXx\~
if(!fileSplitterFetch.bDownOver) qqY"*uJ'
{ oAeUvmh
breakWhile = false; 2uW;
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break; 0IBSRFt$g&
} (iX+{a%"
} Y\8)OBZ
if(breakWhile) Om2d.7S
break; ?NsW|w_
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//count++; 0~/_|?]`7
//if(count>4) 7[XRd9a5(
// siteStop(); +\
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} jm/`iXnMf
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System.err.println("文件下载结束!"); 0 /U{p,r6`
} K is"L(C
catch(Exception e){e.printStackTrace ();} i<Zc"v;
} BW*rIn<?G
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//获得文件长度 ENs&RZ;
public long getFileSize() t-bB>q#3>
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int nFileLength = -1; 7~.9=I'A
try{ V {ddr:]4
URL url = new URL(siteInfoBean.getSSiteURL()); Dp-z[]})1
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ]Q)OL
httpConnection.setRequestProperty("User-Agent","NetFox"); DsCcK3 k
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int responseCode=httpConnection.getResponseCode(); JP[K;/
if(responseCode>=400) y}ev ,j
{ >U27];}y
processErrorCode(responseCode); fJ!R6D
return -2; //-2 represent access is error >!1-lfa8
} vV-`jsq20H
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String sHeader; ]jp6k<KF
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