/* <#J<QYF&2
**SiteFileFetch.java b W`)CWd
*/ `s|\"@2
package NetFox; k-t,y|N
import java.io.*; f(zuRM^5
import java.net.*; (\AszLW
iIC9rso"Q1
9h)P8B.>M
public class SiteFileFetch extends Thread { ).@)t:uNa
PT=2LZ
!Dhfr{
SiteInfoBean siteInfoBean = null; //文件信息Bean ~"hAb2
long[] nStartPos; //开始位置 hPX2 Bp
long[] nEndPos; //结束位置 OHXeqjhy
FileSplitterFetch[] fileSplitterFetch; //子线程对象 `04Y ;@w
long nFileLength; //文件长度 $4fjSSB~
boolean bFirst = true; //是否第一次取文件 //@sktHsw(
boolean bStop = false; //停止标志 ( kD?},Z
File tmpFile; //文件下载的临时信息 L2Q p6A6S
DataOutputStream output; //输出到文件的输出流 b~N|DKj
[eTck73
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) kdZ-<O7@
public SiteFileFetch(SiteInfoBean bean) throws IOException Y7IlqC`i
{ qoyGs}/I8
siteInfoBean = bean; g^|_X1{
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); <=LsloI
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 8~XI7g'5x
if(tmpFile.exists ()) {pi67"mYp
{ B3i=pcef
bFirst = false; wNlV_
read_nPos(); 'e8d["N
} @a{v>)
else S@rsQ@PA
{ FPM}:c4
nStartPos = new long[bean.getNSplitter()]; l.LFlwt
nEndPos = new long[bean.getNSplitter()]; !&:.Uh
} A 'P}mrY
j^R~ Lt4
W(3~F2
e?'k[ES^
} .LVOaxT
]q\=
'$&(+>)z`
public void run() 1pBsr(
{ 3 %{'Uh,
//获得文件长度 (]#
JpQ
//分割文件 2%, ' }Bus
//实例FileSplitterFetch mZ.6Njb
//启动FileSplitterFetch线程 2QQYXJ^
//等待子线程返回 fCo2".Tk
try{ r E*u
if(bFirst) c`[uQXv
{ (/UMi,Ho
nFileLength = getFileSize(); BsG[#4KM:
if(nFileLength == -1) KARQKFp!C>
{ 97=YFK~*
System.err.println("File Length is not known!"); 1Yx[,GyC>&
} b|C,b"$N0
else if(nFileLength == -2) XdXS^QA.s
{ "7u"d4h-:(
System.err.println("File is not access!"); H@bmLq
} TuhL:
else n"VE!`B
{ 4)S?Y"Bs
for(int i=0;i<nStartPos.length;i++) x>/@Z6Wxz
{ ~$`YzK^*X
nStartPos = (long)(i*(nFileLength/nStartPos.length)); p!5JO4F$
} D
+%k1
for(int i=0;i<nEndPos.length-1;i++) / o3FK
{ Hw-oh?=
nEndPos = nStartPos[i+1]; < $/Yw
} sA7K ;J})
nEndPos[nEndPos.length-1] = nFileLength; tfU3 6PR
} /3HWP`<x
} _1bd)L&dF
m##z
HK4`@jYQ
//启动子线程 XhkL))FcG
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; NNrZb?
for(int i=0;i<nStartPos.length;i++) x@(f^P
{ WYd,tGz
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), W}i$f -K
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), MrjB[3Td
nStartPos,nEndPos,i); %^BOYvPx
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); WX$^[^=HC
fileSplitterFetch.start(); 544I#!
} (N>ew)Ke
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), CX2q7azG
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); :JG}%
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", uS10P7N}
nEndPos = " + nFileLength); 9>Z#o<*_/
// fileSplitterFetch[nPos.length-1].start(); iPL'JVPZ
K%#C+`Ij
&wC.?w$
//等待子线程结束 %LaC$w_X
//int count = 0; N=q29JU
//是否结束while循环 a5+v)F/=
boolean breakWhile = false; [t\Mu}b
3cQmxp2*
,#FH8%Yf
while(!bStop) tQ<2K*3]
{ NjMLq|X
write_nPos(); H[yLlv
Utility.sleep(500); #6Ph"\G/
breakWhile = true; 2PW3S{D t
.aRxqFi_
xqZ%c/I3q
for(int i=0;i<nStartPos.length;i++) G+yz8@
{ ~_\2\6%1^n
if(!fileSplitterFetch.bDownOver) @Bwl)G!|
{ !a&F:Fbm
breakWhile = false; <%5uzlp
break; 545xs`Q_
} #SUq.A
} `I:,[3_/
if(breakWhile) +0042Yi
break; n8ya$bc
Q&\ksM
/JYi^rZ
//count++; I>zn$d*0
//if(count>4) h^X.e[
// siteStop(); l3$?eGGM
} U?C{.@#w
O/"&?)[v
7im;b15j`'
System.err.println("文件下载结束!"); FA GVpO[
} U9OF0=g
catch(Exception e){e.printStackTrace ();} (G;*B<|A
} R-|]GqS}L
d$
7b
)y Y;%
//获得文件长度 bhT]zsBK
public long getFileSize() 2UJ0%k
{ : \`MrI^
int nFileLength = -1; =l_"M
try{ ~1!kU4
URL url = new URL(siteInfoBean.getSSiteURL()); 'hWRwP|
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); =ZL20<TeH
httpConnection.setRequestProperty("User-Agent","NetFox"); XV!EjD~q
j<5R$^?U
$dUN+9
int responseCode=httpConnection.getResponseCode(); 8=Ht+Br
if(responseCode>=400) \OB3gnR
{ 6g&nnA
processErrorCode(responseCode); \Ki#"%S
return -2; //-2 represent access is error 5jk4k c
} .U
{JI\
S-dV
rrq-so1u}
String sHeader; )Jn80~U|1
Q)8t;Kx
7 4UE-H)
for(int i=1;;i++) XcneH jpR
{ $*ZHk0
7x
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); PUArKBYM-
//Utility.log(in.readLine()); 1(a\$Di
sHeader=httpConnection.getHeaderFieldKey(i); u'][3
if(sHeader!=null) .;s4T?j@w
{ >iV(8EgBS
if(sHeader.equals("Content-Length")) ;c}];ZU3G
{ +r"$?bw'
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); W5{e.eI}|
break; n&JP/P3Y
} Ss}0.5Bq
} b@Cvs4
else ^5F/=TtE G
break; aT[7L9Cw
} Z2
4 m
} ay.IKBXc
catch(IOException e){e.printStackTrace ();} 4[wP$
catch(Exception e){e.printStackTrace ();} :r=_\?
Pl>t\`1:|A
BO|Jrr>
Utility.log(nFileLength); -OxHQ
a#=-Aj-
r8$TT\?~
return nFileLength; QJ?!_2Ax
} 5#PhaVc
m+ YgfR
]y
e
//保存下载信息(文件指针位置) v8[1E>&vx
private void write_nPos() $%'z/'o!
{ ~E~J*R Ze
try{ ^DOcw@Z6HC
output = new DataOutputStream(new FileOutputStream(tmpFile)); fZC,%p
output.writeInt(nStartPos.length); Y#,MFEd
for(int i=0;i<nStartPos.length;i++) l|{<!7a
{ v2Y=vr
// output.writeLong(nPos); ){~.jP=-#
output.writeLong(fileSplitterFetch.nStartPos); hd' n"
output.writeLong(fileSplitterFetch.nEndPos); N0f}q1S<-A
} Y'9deX+
output.close(); \8ZNXCP
} g(^l>niF:
catch(IOException e){e.printStackTrace ();} :z7!X.*
catch(Exception e){e.printStackTrace ();} V"XN(Fd^
} ,8seoX^
ai RNd~\
cCIEG e6
//读取保存的下载信息(文件指针位置) mLO6`]p{H
private void read_nPos() )ej8vm
{ `1gsrHi4N
try{ 4j5 "{
DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); WP9=@X Z
int nCount = input.readInt(); :C5N(x
nStartPos = new long[nCount]; 7_,X9^z
nEndPos = new long[nCount]; crQuoOl7
for(int i=0;i<nStartPos.length;i++) dmne+ufB
{ 2NM}u\%c/
nStartPos = input.readLong(); ;a"Ukh
nEndPos = input.readLong(); YQOGxSi
} T7`Jtqf
input.close(); v.MWO]L
} 4m:E:zVn
catch(IOException e){e.printStackTrace ();} vbp)/I-h
catch(Exception e){e.printStackTrace ();} $6N.ykJ
} +]X^bB[
yI)2:Ca*
v*pVcBY>
private void processErrorCode(int nErrorCode) RD^o&