/* &W}6Xg(
**SiteFileFetch.java RBLOc$2
*/ [ut[W9
package NetFox; txiX1o!/L
import java.io.*; Cw l:
import java.net.*; \[d~O>k2
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public class SiteFileFetch extends Thread { D?G'1+RIT~
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SiteInfoBean siteInfoBean = null; //文件信息Bean 92ngSaNC
long[] nStartPos; //开始位置 BZ,{gy7g7X
long[] nEndPos; //结束位置 r%9=75HA
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Wjli(sT#-
long nFileLength; //文件长度 hlfdmh?/
boolean bFirst = true; //是否第一次取文件 {TvB3QOsj
boolean bStop = false; //停止标志 ovZ!}
File tmpFile; //文件下载的临时信息 Mzw:c#
DataOutputStream output; //输出到文件的输出流 m86ztP)
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 8v)iOPmDC
public SiteFileFetch(SiteInfoBean bean) throws IOException 7#7AK}
{ }1 j'
siteInfoBean = bean; =&)R2pLs*
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ;?v&=Z't.
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); %Iiu#- 'B
if(tmpFile.exists ()) uQ%3?bx)T
{ X6j:TF
bFirst = false; /i{V21(%
read_nPos(); ^mouWw)a_
} C%|m[,Gx
else }lP`3e
{ _Nh`-R%B)
nStartPos = new long[bean.getNSplitter()]; "y60YYn-#J
nEndPos = new long[bean.getNSplitter()]; ^I{/j'b&
} 2$'bOo
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public void run() lx7]rkWo|a
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//获得文件长度 ornU8H`
//分割文件 V{fG~19
//实例FileSplitterFetch j@{ B 8
//启动FileSplitterFetch线程 I]%Kd('
//等待子线程返回 ltKMvGEF
try{ EeGTBVms
if(bFirst) i v.G
{ :x3xeVtY
nFileLength = getFileSize(); i0Rj;E=:]
if(nFileLength == -1) UjMWSPEBy
{ ZSr!L@S
System.err.println("File Length is not known!"); 0lOR.}]q
} xUTTRJ(\
else if(nFileLength == -2) }D-jTZlC
{ '.jYu7
System.err.println("File is not access!"); dK4w$~j{k
}
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else 99"8d^{z
{ \uO^wJ}
for(int i=0;i<nStartPos.length;i++) e-%q!F(Bf
{ y#= j{
nStartPos = (long)(i*(nFileLength/nStartPos.length)); FV{XPr%
} "ji+~%`^[t
for(int i=0;i<nEndPos.length-1;i++) 8T[<&<^-
{ Cu_-QE
nEndPos = nStartPos[i+1]; yq1G6hw
} +|TXKhm{
nEndPos[nEndPos.length-1] = nFileLength; '2UQN7@d
} 06?d#{?M1o
} Gzs$0Ki=
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//启动子线程 {vT9I4d8
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; ";/ogFi
for(int i=0;i<nStartPos.length;i++) )i_:[ l6
{ de;CEm<n
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Vt,P.CfdC
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), !N!AO(Z
nStartPos,nEndPos,i); )Cat$)I#,
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 13*S<\
fileSplitterFetch.start(); D]5j?X'
} x&r f]R
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ?6HnN0A)
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); IVVX3RI
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 5tk7H2K^<
nEndPos = " + nFileLength); *!j!o%MB
// fileSplitterFetch[nPos.length-1].start(); J/3$I
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//等待子线程结束 ~=I:go
//int count = 0; y0p\Gu;3j
//是否结束while循环 a!f71k
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boolean breakWhile = false; ^Pah\p4bj
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while(!bStop) LXZI|K[}k
{ `5"3Cj"M
write_nPos(); 9m\Yi
Utility.sleep(500); uKj(=Rqq
breakWhile = true;
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for(int i=0;i<nStartPos.length;i++) G:@1.H`
{ sk*vmxClY
if(!fileSplitterFetch.bDownOver) i|xz
{ .&`apQD}
breakWhile = false; nwzyL`kF
break; |>1#)cONW
} Cs\jPh;"
} ;/kmV~KG
if(breakWhile) H}q$6WE
break; -8R SE4)
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//count++; gI"cZ h3}
//if(count>4) x 0#u2j?zj
// siteStop(); 3_.%NgES|
} ~)zxIO!
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System.err.println("文件下载结束!"); _g-0"a{-
} ]h=5d09z
catch(Exception e){e.printStackTrace ();} @=
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} n&DBMU
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//获得文件长度 )eqF21\
public long getFileSize() 6urU[t1
{ _/u(:
int nFileLength = -1; ((<\VQ,>(
try{ {[hgSVN;
URL url = new URL(siteInfoBean.getSSiteURL()); \Lg4 Cx
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 0cVxP)J+
httpConnection.setRequestProperty("User-Agent","NetFox"); mIPDF1=)
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int responseCode=httpConnection.getResponseCode(); WF_QhKW|k
if(responseCode>=400)
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{ fL("MDt
processErrorCode(responseCode); cd=K=P}p
return -2; //-2 represent access is error NciIqF
} Pc7p2
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String sHeader; O%6D2d
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for(int i=1;;i++) C\vOxBAB
{ ,yvS c
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); tOxH 9
//Utility.log(in.readLine()); q~Al[`K
sHeader=httpConnection.getHeaderFieldKey(i); FMhuCl2
if(sHeader!=null) )4.-6F7U?
{ ^FVmP d*1
if(sHeader.equals("Content-Length")) K4+|K:e
{ 71ab&V il
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); +@H{H2J 4
break; M{jq6c
} YpRhl(|
}
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else UX<)hvKj
break; pf+VYZ#)
} SqdI($F\:
} -M_>]ubG
catch(IOException e){e.printStackTrace ();} xI/8[JW*
catch(Exception e){e.printStackTrace ();} s:(z;cj/
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Utility.log(nFileLength); '#eT
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return nFileLength; -_eG/o=M
} RCxwiZaf33
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//保存下载信息(文件指针位置) [N}QCy
private void write_nPos() 25j\p{*
{ lC,~_Yb
try{ 6`bR'
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output = new DataOutputStream(new FileOutputStream(tmpFile)); ]*Q,~uV^|
output.writeInt(nStartPos.length); <P6d-+
for(int i=0;i<nStartPos.length;i++) H*+7{;$
{ ;:+2.//
// output.writeLong(nPos); n}fV$qu
output.writeLong(fileSplitterFetch.nStartPos); yy&L&