/* .22}=z
**SiteFileFetch.java ALi3JU
*/ Iy;bzHXs
package NetFox; /4>|6l=
import java.io.*; yD yMI
import java.net.*; t~V?p'a0ys
y.aeXlc[
^!7|B3`
public class SiteFileFetch extends Thread { vSv:!5*
f>[!Zi*
'>Uip+'
SiteInfoBean siteInfoBean = null; //文件信息Bean ?WBA:?=$58
long[] nStartPos; //开始位置 0?w4
long[] nEndPos; //结束位置 @$7l
FileSplitterFetch[] fileSplitterFetch; //子线程对象 _edT+r>+
long nFileLength; //文件长度 2#_i_j
boolean bFirst = true; //是否第一次取文件 7Um3myXU
boolean bStop = false; //停止标志 g{e@I;F
File tmpFile; //文件下载的临时信息 %df[8eX{
DataOutputStream output; //输出到文件的输出流 #9/S2m2\YG
#XeEpdE
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) F* _ytL
public SiteFileFetch(SiteInfoBean bean) throws IOException 7hAc6M$h;
{ 1#V&'A
siteInfoBean = bean; oTb4 T=
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); f-5}`)`.+
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); K!O7q~s[D
if(tmpFile.exists ()) !{S HlS
{ 'fka?lL
bFirst = false; *n*po.Xr
read_nPos(); 5
8n(fdE
} !glGW[r/7
else xG8z4Yu
{ w1,6%?p(O
nStartPos = new long[bean.getNSplitter()]; ?UBhM,;XK
nEndPos = new long[bean.getNSplitter()]; fctVJ{?
} _xdFQ
dk.VH!uVb
PbIir=
</li<1
} l.%[s6
*3h!&.zm
]cP$aixd
public void run() ]-8yZWal
{ /rzZU} 3[
//获得文件长度 pVC;''E
//分割文件 sSsRn*LN-:
//实例FileSplitterFetch T?EFY}f
//启动FileSplitterFetch线程 9~6~[z
//等待子线程返回 i3<ZFR
try{ m:C |R-IL
if(bFirst) ^ jT1q_0
{ GU]_Z!3
nFileLength = getFileSize(); mAuN* (
if(nFileLength == -1) ct@i]}"`
{ 0ChdFf7
System.err.println("File Length is not known!"); Ir$:e*E>
} a{4RG(I_
else if(nFileLength == -2) y R_x:,|g
{ l^4!
System.err.println("File is not access!"); la*c/*
} (nt=
else !~a1xI~s
{ {f[X)
for(int i=0;i<nStartPos.length;i++) S1E=EVG
{ $LJCup,1"
nStartPos = (long)(i*(nFileLength/nStartPos.length)); b:YyzOqEu
} #RVN7-x
for(int i=0;i<nEndPos.length-1;i++) vF.Ml
{ .Eg[[K_iD
nEndPos = nStartPos[i+1]; "V:E BR
}
1ZRSeh
nEndPos[nEndPos.length-1] = nFileLength; "Rq)%o$Z
}
{U7A&e0eW
} tN&_f==e
&?#!%Ds
Fa9gr/.F,@
//启动子线程 |<w
Z;d
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; {+x;J4
for(int i=0;i<nStartPos.length;i++) tjt#2i8/
{ F'3-*>]P
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ca?;!~%zA
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), x[1(cj
nStartPos,nEndPos,i); BZs?tbf
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); PtT$#>hx]
fileSplitterFetch.start(); )d"s6i
} Vv~:^6il
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), @Yzc?+x
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); :yE7jXB
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", pb=yQ}.
nEndPos = " + nFileLength); MP%pEUomev
// fileSplitterFetch[nPos.length-1].start(); V8IEfU
Q0-}!5`E1$
sA[eKQjaD
//等待子线程结束 e2*Fe9:
//int count = 0; Bw8&Amxx:
//是否结束while循环 WJ
m:?,
boolean breakWhile = false; OE_>Kw7q
M$+2f.(>k)
Wz-7oP%;I
while(!bStop) B4ky%gF4
{ -40OS=wpA
write_nPos(); -8D$ [@y(
Utility.sleep(500); z! /
MBM
breakWhile = true; h;Se.{
@Sd l~'"
5Q.z#]Lg
for(int i=0;i<nStartPos.length;i++) ,`;Dre
{ HzD=F3\r|
if(!fileSplitterFetch.bDownOver) ~@N0$S
{ RlnJlY/
breakWhile = false; .qG*$W2f
break; /{+77{#Qn
} nN[gAM (
} fk
if(breakWhile) iJem9XXb
break; oar`xH$C
=EdLffU[J
XbL\l
//count++; /8tF7Mmr
//if(count>4) `Wy8g?d;bn
// siteStop(); Tv`-h
} kr6^6I.
+oe%bk|A
_
ZC[h~9H
System.err.println("文件下载结束!"); a~"<lzu|$
} P1Chmg
catch(Exception e){e.printStackTrace ();} SVc5mS|up
} {ehAF=C
TWk1`1|
^VAvQ(b!:i
//获得文件长度 gyAKjLqqpi
public long getFileSize() FQGh+.U
{ ]eD5It\
int nFileLength = -1; L#X!.
try{ Ij}k>qO/2
URL url = new URL(siteInfoBean.getSSiteURL()); +/Q?<*[
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 1E|~;wo\
httpConnection.setRequestProperty("User-Agent","NetFox"); rP7~R
!
fSM6Vo
Bq) aA)gF
int responseCode=httpConnection.getResponseCode(); {'R\C5:D7
if(responseCode>=400) OJ Y_u[
{ Lr}>Md
processErrorCode(responseCode); xBW{Wyh
return -2; //-2 represent access is error [!CIBK99
} ZJeTx.Gi6
0'O*Y
]h+
.P>-Fh,_p
String sHeader; 1xF<c<
Z$&