/* 7W6tz\Y
**SiteFileFetch.java %W=S*"e-
*/ MkG3TODfHB
package NetFox; EC2KK)=n}
import java.io.*; sHSZIkB-r
import java.net.*; {mK=Vi g
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public class SiteFileFetch extends Thread { G _{x)@
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SiteInfoBean siteInfoBean = null; //文件信息Bean S$Tc\/{
long[] nStartPos; //开始位置 ,25Qhz]
long[] nEndPos; //结束位置 (7G5y7wI"
FileSplitterFetch[] fileSplitterFetch; //子线程对象 y1!c:&
long nFileLength; //文件长度 {i)k# `
boolean bFirst = true; //是否第一次取文件 t8,s]I&
boolean bStop = false; //停止标志 ~*9
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File tmpFile; //文件下载的临时信息 v_PhJKE
DataOutputStream output; //输出到文件的输出流 8o-*s+EY"&
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 'PF?D~
public SiteFileFetch(SiteInfoBean bean) throws IOException eDR4c%
{ -9)<[>:
siteInfoBean = bean; F'DO46
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); X|)Ox
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info");
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if(tmpFile.exists ()) z^to"j
{ GpV"KVJJ/
bFirst = false; 5 iUT#
read_nPos(); 1CFTQB >
} o/bmS57
else ~{hcJ:bI
{ _6v|k}tW'Y
nStartPos = new long[bean.getNSplitter()]; E`3yf9"
nEndPos = new long[bean.getNSplitter()]; UGK4uK+I`
} ^b=9{.5
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} ,rT62w*e
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public void run() pZx'%-\-T
{ $bRakF1'S
//获得文件长度 ?+)O4?#
//分割文件 c0.i
//实例FileSplitterFetch fJ_d,4
//启动FileSplitterFetch线程 ;ZMm6o
//等待子线程返回 s+;J`_M
try{ l(Dkmt>^
if(bFirst) a%a_sR\)
{ :!a'N3o>
nFileLength = getFileSize(); 2`qO'V3Q
if(nFileLength == -1) PMzPe"3M
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System.err.println("File Length is not known!"); j_\nsM7
} x}t,v.:
else if(nFileLength == -2) T >XnVK
{ u-g2*(ZT
System.err.println("File is not access!"); ;v0M
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} aV?dy4o$
else ^sR]w]cz.
{ eHUr!zH:
for(int i=0;i<nStartPos.length;i++) 6 KuB<od
{ >h+[#3vD
nStartPos = (long)(i*(nFileLength/nStartPos.length)); a[;TUc^I1F
} z DDvXz
for(int i=0;i<nEndPos.length-1;i++) I^>m-M.
{ gPs%v`y)*D
nEndPos = nStartPos[i+1]; +cS%b}O`$
} ?}4 =A&][
nEndPos[nEndPos.length-1] = nFileLength; ,f
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} k*)O]M<,
} EHk(\1!V
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//启动子线程 5g9lO]WDI
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; fx&b*OC
for(int i=0;i<nStartPos.length;i++) 3n{'}SYyz
{ [J4
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), #jdo54-
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), U40adP? a
nStartPos,nEndPos,i); VJ1(|v{D4[
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); >_3+s~
fileSplitterFetch.start(); {k.Dy92
} wfr+-
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), WVaIC $Y
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ~ KNdV
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 6")co9
nEndPos = " + nFileLength); F0,-7<G
// fileSplitterFetch[nPos.length-1].start(); V\k?$}
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//等待子线程结束 C1
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//int count = 0; 4j9
//是否结束while循环 .{6?%lt
boolean breakWhile = false; V. sIiE
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while(!bStop) Wl3jbupu _
{ GtZkzVqLd
write_nPos(); XI6LPA0%
Utility.sleep(500); XRU^7@Ylks
breakWhile = true; -
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for(int i=0;i<nStartPos.length;i++) U'IJwGRP
{ `V N $
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if(!fileSplitterFetch.bDownOver) /rRQ*m_
{ JI1O(
breakWhile = false; Z,~"`9>Ss
break; n ,<`.^
} 6 isz
} [E_+fT
if(breakWhile) QInow2/u
break; {bF95Hs-
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//count++; !6:q#B*
//if(count>4) Pw4j?pv2
// siteStop(); i?^Cc\gH
} F +e
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System.err.println("文件下载结束!"); o^59kQT
} m.~&n!1W*`
catch(Exception e){e.printStackTrace ();} R#Z1+&='
} iR-MuDM
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//获得文件长度 {b@rQCre7
public long getFileSize() M4a-+T"
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int nFileLength = -1; _`!@
try{ *"E?n>b
URL url = new URL(siteInfoBean.getSSiteURL()); >/Z#{;kOz
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); AR\?bB~`c
httpConnection.setRequestProperty("User-Agent","NetFox"); SM:SxhrGt
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int responseCode=httpConnection.getResponseCode(); 3Lwl~h!
if(responseCode>=400) ;K?fAspSH
{ FAu G`zu
processErrorCode(responseCode); :)nn/[>fC
return -2; //-2 represent access is error t"1'B!4
} @]f"X>
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String sHeader; V|NWJ7
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for(int i=1;;i++) vCwDE~
{ zY8"\ZB
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); lh*m(
//Utility.log(in.readLine()); o}5:vi]
sHeader=httpConnection.getHeaderFieldKey(i); {xt<`_R
if(sHeader!=null) #&">x7?5
{ ~c!zTe
if(sHeader.equals("Content-Length")) c1/Gyq
{ e4NT
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); U-TwrX
break; w_^&X;0^
} W0$G7s
} !?tWWU%P)
else :^kP?
break; CTtF=\
} `<t{NJ&f
} l3}n.ODA
catch(IOException e){e.printStackTrace ();} S$]:3
catch(Exception e){e.printStackTrace ();} QN-n9f8
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Utility.log(nFileLength); xpyb&A
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return nFileLength; GMU<$x8o
} *cp|lW!ag
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//保存下载信息(文件指针位置) @.*[CC;&
private void write_nPos() ~<