/* A]#_"fayo
**SiteFileFetch.java z1FL8=
*/ umryA{Ps
package NetFox; f}%sO
import java.io.*; H(?e&Qkg
import java.net.*; H6{Rd+\Z
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public class SiteFileFetch extends Thread { Cc*|Zw
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SiteInfoBean siteInfoBean = null; //文件信息Bean 6# R;HbkO
long[] nStartPos; //开始位置 :/~_sJt C
long[] nEndPos; //结束位置 X tR`?
FileSplitterFetch[] fileSplitterFetch; //子线程对象 eWw y28t
long nFileLength; //文件长度 T%w(P ^qk
boolean bFirst = true; //是否第一次取文件 g&P9UW>qS
boolean bStop = false; //停止标志 -: C[P
File tmpFile; //文件下载的临时信息 [RW,{A
DataOutputStream output; //输出到文件的输出流 F=VoFmF@
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) /CbkqNV
public SiteFileFetch(SiteInfoBean bean) throws IOException r&=r/k2
{ WFXx70n
siteInfoBean = bean; ${e -ffyy
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); kr6:{\DU:B
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); XGL"gD
if(tmpFile.exists ()) 0oQ/J:
{ J09ZK8
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bFirst = false; uQ-WTz|*
read_nPos(); ,~iFEaV+
} oUCVd}wH
else :%pw`b, =V
{ [&fWF~D-p<
nStartPos = new long[bean.getNSplitter()]; /1U,+g^O>
nEndPos = new long[bean.getNSplitter()]; aQC7 V !v
} E|\3f(aF
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public void run() -g~iE]x6Y
{ VB}P Ng
//获得文件长度 s9=pV4fA~w
//分割文件 O$YJku
//实例FileSplitterFetch !P+~c0DF
//启动FileSplitterFetch线程 O'Vh{JHf
//等待子线程返回 8}]l9"q(
try{ 6CCZda@
if(bFirst) +HYN$>
{ N <ja6Ac
nFileLength = getFileSize(); x[zKtX
if(nFileLength == -1) 54bF)<+
{ Q^\{Zg)p
System.err.println("File Length is not known!"); `;R|V
} <ihhV e
else if(nFileLength == -2) Gt?!E6^!
{ f45x%tha %
System.err.println("File is not access!"); tPQ2kEW
} PsacXZNs\N
else \t[
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{ }kpfJLjY
for(int i=0;i<nStartPos.length;i++) }x>}:"P;W
{ bwv/{3G,Ys
nStartPos = (long)(i*(nFileLength/nStartPos.length)); vr5<LNCLQ
} (8+.#1!*
for(int i=0;i<nEndPos.length-1;i++) M nH4p
{ }|AUV
nEndPos = nStartPos[i+1]; %'k^aqFL
} oy#Qj3M8=
nEndPos[nEndPos.length-1] = nFileLength; wGLZzqgq
} PL%_V ?z
} n uhKM.a{
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//启动子线程 ),dXaP[
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; vYrqZie<
for(int i=0;i<nStartPos.length;i++) mqw&SxU9
{ h-Ffs
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), VmV/~- <Z
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), !W .ooy5(
nStartPos,nEndPos,i); m~#98ZJ^
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); h]vA%VuE'E
fileSplitterFetch.start(); T+N%KRl
} V 7%rKK
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 97'*Xq
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); V= !!;KR0
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", |u7vY/
nEndPos = " + nFileLength); `NyvJt^<
// fileSplitterFetch[nPos.length-1].start(); _z{:Q
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//等待子线程结束 $>]7NT P
//int count = 0; bC)diC
//是否结束while循环 "*XR'9~7
boolean breakWhile = false; L%U-MOS=
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while(!bStop) *siS4RX2
{ |*i0h`a
write_nPos(); kImS'i{A
Utility.sleep(500); '-S^z"ZrI
breakWhile = true; u ; f~
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for(int i=0;i<nStartPos.length;i++) #3\F<AJ<VB
{ u])N^AY"sj
if(!fileSplitterFetch.bDownOver) 50uNgLs
{ /i"L@t)\t
breakWhile = false; YeptYW@xfw
break; _;L9&>!p6
} i|)<#Ywl
} 1^b-J0
if(breakWhile) _Cj u C`7
break; mp+
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//count++; L6J=m#Ld
//if(count>4) s+h`,gg9
// siteStop(); BC9rsb
} <Gr{h>b
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System.err.println("文件下载结束!"); w8%<O^wN,
} 1|q$Wn:*
catch(Exception e){e.printStackTrace ();} )$]_;JFr
} {: T'2+OH>
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//获得文件长度 b'3w.%^
public long getFileSize() 'Oyz/P(p
{ /{."*jK
int nFileLength = -1; <A; R%\V
try{ w|OMT>.
URL url = new URL(siteInfoBean.getSSiteURL()); v\'Eo*4
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); Pp*|EW 1
httpConnection.setRequestProperty("User-Agent","NetFox"); WIa4!\Ky!
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int responseCode=httpConnection.getResponseCode(); b$l@Z&[]
if(responseCode>=400) +DY% Y
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{ %D)W~q-g
processErrorCode(responseCode); Ze~^+ EE
return -2; //-2 represent access is error Rjqeuyj:
} _%?}e|epy
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String sHeader; Cb%?s
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for(int i=1;;i++) _{_ybXG|
{ 1(CpTaa
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); WV]Si2pOZ
//Utility.log(in.readLine()); <7~HG(ks
sHeader=httpConnection.getHeaderFieldKey(i); U,_uy@fE=?
if(sHeader!=null) ps\A\aggML
{ _?x*F?5=
if(sHeader.equals("Content-Length")) b%IRIi&,
{ m-xSF]q=<
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); PO%Z.ol9
break; LBh|4S$K
} rwWs\~.H
} :aS8%m
else F4xYfbwY"]
break; R^.E";/h
} w+)MrB-}
} lfba
catch(IOException e){e.printStackTrace ();} 6",S$3q
catch(Exception e){e.printStackTrace ();} s2FJ^4
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Utility.log(nFileLength); :G=N|3
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return nFileLength; t:B~P,r
} Rf||(KC<
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//保存下载信息(文件指针位置) hsr,a{B%$
private void write_nPos() LmE%`qNg
{ 2Dgulx5kGZ
try{ ]:uJ&xUar