/* G[vUOEU~O
**SiteFileFetch.java >\RDQ%z
*/ N"&$b_u[
package NetFox; Feh"!k <6k
import java.io.*; "^18&>^
import java.net.*; )H.ubM1
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public class SiteFileFetch extends Thread { vR<fdV
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SiteInfoBean siteInfoBean = null; //文件信息Bean W<Bxm|
long[] nStartPos; //开始位置 \,$r,6-g
long[] nEndPos; //结束位置 -WQ_[t9l
FileSplitterFetch[] fileSplitterFetch; //子线程对象 yp( ?1
long nFileLength; //文件长度 {hlT`K
boolean bFirst = true; //是否第一次取文件 c1 gz#,
boolean bStop = false; //停止标志 cC7"J\+r*
File tmpFile; //文件下载的临时信息 QJ[(Y@ O6a
DataOutputStream output; //输出到文件的输出流 f_^ix
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) v+|@}9| Z
public SiteFileFetch(SiteInfoBean bean) throws IOException ;a#}fX
{ K<Yn_G
siteInfoBean = bean; ~ra#UG\Y8
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); m$j
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); K7)j
if(tmpFile.exists ()) Vp5V
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{ 5q0BG!A%T
bFirst = false; >DSNKU+j
read_nPos(); Dwm@E\^ihm
} 5<'n
else H>gWxJ
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{ AAeQ- nbP
nStartPos = new long[bean.getNSplitter()]; *[XN.sb8E
nEndPos = new long[bean.getNSplitter()]; qk"oFP6
} ?,A}E|jZ
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} FZeN,
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public void run() F^/~@^{P
{ CuV=C
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//获得文件长度 ~;!i)[-
//分割文件 GU;TK'Yy?
//实例FileSplitterFetch y<I Z|f
//启动FileSplitterFetch线程 'l0eo' K
//等待子线程返回 \N'hbT=
try{ PV Q#>_~5
if(bFirst) te! ]9rR
{ %l9WZ*yZ`2
nFileLength = getFileSize(); %^Q@*+{:f
if(nFileLength == -1) Ba\wq:
{ c_D,MW\IC
System.err.println("File Length is not known!"); \'}/&PCkr
} "63zc1
else if(nFileLength == -2) 2V=FWuXC"
{ j?Jd@(*y$
System.err.println("File is not access!"); E9 80yXJR
} 9;xL!cy
else &y+PSa%n
{ ~L4*b*W
for(int i=0;i<nStartPos.length;i++) goBKr: &]w
{ I;kUG_c(4
nStartPos = (long)(i*(nFileLength/nStartPos.length)); a|]%/[G@
} 4cVs(`g^
for(int i=0;i<nEndPos.length-1;i++) cx1WGbZ
{ R4Gg|Bh
nEndPos = nStartPos[i+1]; mBD!:V'
} EP*["fx
nEndPos[nEndPos.length-1] = nFileLength; "0!eb3n
} Ztpm_P6
} uP%;QBb
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//启动子线程 U#~nN+SIt
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; X-;Qorb^
for(int i=0;i<nStartPos.length;i++) #%=vy\r
{ X'3`Q S:!
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 'nj&}A'
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 4LB9w21
nStartPos,nEndPos,i); .$ P2W0G
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); EU&3Pdnd
fileSplitterFetch.start(); rz%[o,s
} =J[[>H'<d
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), YCLD!S/?
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); u;'<- _
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", L]L~TA<D9i
nEndPos = " + nFileLength); _QOOx+%*5
// fileSplitterFetch[nPos.length-1].start(); {eD>E(Y@z1
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//等待子线程结束 :v
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//int count = 0; A86lyBDQ*
//是否结束while循环 #&`WMLl+8
boolean breakWhile = false; %]:vT&M
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while(!bStop) (82\&dfy
{ g$^qQs)^N
write_nPos(); SUnmp
Utility.sleep(500); v BeU
breakWhile = true; &T{B~i3w8
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for(int i=0;i<nStartPos.length;i++) *a0I Z
{ Mpl,}Q!c
if(!fileSplitterFetch.bDownOver) vdFQf ^l
{ 5P t}
breakWhile = false; B|
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break; XL&eJ
} e#eO`bT
} )}9}"jrDlx
if(breakWhile) ZD] '$
break; mX_Uhpw?t
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//count++; b>AAx$2Y
//if(count>4) !CMVZf;u
// siteStop(); {arjW3~M:
} rM~IF+f0XD
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System.err.println("文件下载结束!"); 96V, [-arf
} uKAHJ$%
catch(Exception e){e.printStackTrace ();} HE<%d
} AJ1$$c
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//获得文件长度 bDh(;%=
public long getFileSize() `3s-%>
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int nFileLength = -1; I$qtfGr
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URL url = new URL(siteInfoBean.getSSiteURL()); qmeEUch`
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); uH;^>`DT
httpConnection.setRequestProperty("User-Agent","NetFox"); =&G|} M
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int responseCode=httpConnection.getResponseCode(); ]mU*Y:<
if(responseCode>=400) &CsBG?@Z|
{ >t<R6f_Q0
processErrorCode(responseCode); xF>w r
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return -2; //-2 represent access is error ',ybHW%D%i
} tZ2iSc
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