/* I[}75:^Rt
**SiteFileFetch.java 3^{8_^I
*/ d)N^PJ/
package NetFox; M2}np
import java.io.*; ZTN(irK
import java.net.*; ?Phk~ jE
DW#Bfo
n'THe|:I
public class SiteFileFetch extends Thread { Yl$X3wi
:*^:T_U
e|yX QTlvL
SiteInfoBean siteInfoBean = null; //文件信息Bean v2d<o[[C
long[] nStartPos; //开始位置 9X( Sk%
long[] nEndPos; //结束位置 YQ;
cJ$
FileSplitterFetch[] fileSplitterFetch; //子线程对象 KE<kj$
long nFileLength; //文件长度 #,G1R7
boolean bFirst = true; //是否第一次取文件 S@x}QQ|.
boolean bStop = false; //停止标志 m+?N7
File tmpFile; //文件下载的临时信息 <j;]!qFR
DataOutputStream output; //输出到文件的输出流 ?]^zD k@~
zJ;Rt9<7-
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) u#1%P5r&X
public SiteFileFetch(SiteInfoBean bean) throws IOException W;4Lkk$
{ ;+sl7qlA4
siteInfoBean = bean; |XRImeF'd
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); >-M ]:=L
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); Y(_KizBY
if(tmpFile.exists ()) 9e!vA6Fx
{ KF+mZB
bFirst = false; uVGa(4u}
read_nPos(); uMvb-8
} ,of]J|
else 8'_ 0g[s
{ t0q_>T-kt
nStartPos = new long[bean.getNSplitter()]; e'34Pw!m
nEndPos = new long[bean.getNSplitter()]; &iqw!
ud
} %t*[T
mk%b9Ko<F
PnA?+u2m
:=*}htP4C
} ; DDe.f"
yoQ\lk
~EEs}i
public void run() <*<U!J-i
{ 6V1:qp/6
//获得文件长度 )T1iN(Z
//分割文件 yS!(Ap
//实例FileSplitterFetch v*z(@<Y
//启动FileSplitterFetch线程 px=]bALU
//等待子线程返回 RF?DtNuq
try{ T p<s1'"
if(bFirst) d]SYP
{ Z(e^ iH
nFileLength = getFileSize(); hi|!
if(nFileLength == -1) -:<lkq&/
{ t>xd]ti
System.err.println("File Length is not known!"); E7nFb:zlV
} 8AL\ST51x"
else if(nFileLength == -2) }Cj8
{ bcH_V|5}
System.err.println("File is not access!"); [/|zH'j:
} |quij0_'e
else `)Ky0&?
{ &;c>O
for(int i=0;i<nStartPos.length;i++) L(G92,.
{ `s"d]/85VW
nStartPos = (long)(i*(nFileLength/nStartPos.length)); <jA105U"m>
} -Q"hZ 9
for(int i=0;i<nEndPos.length-1;i++) G$bJ+
{ C&<~f#lB
nEndPos = nStartPos[i+1]; ZVih =Y-w
} +v7) 1y
nEndPos[nEndPos.length-1] = nFileLength; Z[?mc|*x
} V
'.a)6
} @S^ASDuQU7
np9dM
' cIEc1y
//启动子线程 rD
&D)w
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 8b(!k FxD
for(int i=0;i<nStartPos.length;i++) (xpn`NA
{ k N7Bd}
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), )[Z!*a m
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), iE].&>w
nStartPos,nEndPos,i); !t#F/C
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); (?0`d
fileSplitterFetch.start(); 12UD19!
} A7Po 3n%Q
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), kz}R[7
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); jgv`>o%<W
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", u]*0;-tz
nEndPos = " + nFileLength); YJeyIYCs<
// fileSplitterFetch[nPos.length-1].start(); C[sh,
dT|vYK}\
Z4b||
//等待子线程结束 3SttHu0X
//int count = 0; 4T6 {Y
//是否结束while循环 cVnJ^*Z
boolean breakWhile = false; <ABX0U[*
KqY["5p
!]yO^Ob.E
while(!bStop) zi9[)YqxPH
{ =q7Z qP
write_nPos(); SRIA*M.B}
Utility.sleep(500); 2_^aw[-
breakWhile = true; "Jq8?FoT
V~G`kkNy
Mj#-j/{x{5
for(int i=0;i<nStartPos.length;i++) m0n)dje
{ fxaJZz$o
if(!fileSplitterFetch.bDownOver) l e4?jQQ@L
{ q[q?hQ/b
breakWhile = false; x!LQxoNF
break; )SF}2?7e
} :}8Z@H!KkY
} yZr M.%V
if(breakWhile) Mips.Bx
break; i<kD
#'D"
'B
g- AHdYJ
//count++; J]lrS
//if(count>4) gxz-R?.
// siteStop(); fZ04!R
} ^bg2[FV
#} ~qqJ G2
y&}E~5O
System.err.println("文件下载结束!"); ^k5ll=}
} * _a@z1
catch(Exception e){e.printStackTrace ();} %~L>1ShtU
} Nkxmm/Z
S#)Eom?V
{^(ACS9mL
//获得文件长度 *f&EoUk}F
public long getFileSize() B`*ZsS=R-
{ +zXEYc
int nFileLength = -1; Tc8un.
try{ /| #&px)G
URL url = new URL(siteInfoBean.getSSiteURL()); p' M%XBu
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); <N\v)Ug`
httpConnection.setRequestProperty("User-Agent","NetFox"); il|1a8M2~
ee%fqVQ8P
06$!R/K
int responseCode=httpConnection.getResponseCode(); IDnC<