/* O D5qPovsd
**SiteFileFetch.java &^&0,g?To
*/ j8Q_s/n
package NetFox; ^vh!1"T
import java.io.*; N68]r3/K
import java.net.*; V1Ft3Msq
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public class SiteFileFetch extends Thread { < (9
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SiteInfoBean siteInfoBean = null; //文件信息Bean _)pOkS
long[] nStartPos; //开始位置 *eXs7 "H
long[] nEndPos; //结束位置 OSuQ7V
FileSplitterFetch[] fileSplitterFetch; //子线程对象 KgYQxEbIW
long nFileLength; //文件长度 3bGU;2~}
boolean bFirst = true; //是否第一次取文件 HrLws95'
boolean bStop = false; //停止标志 _~1O #*|4
File tmpFile; //文件下载的临时信息 21<Sfsc$
DataOutputStream output; //输出到文件的输出流 bRFZ:hu l
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) |Z>}#R!,P
public SiteFileFetch(SiteInfoBean bean) throws IOException 1:7fV@jw
{ %! Sjbh
siteInfoBean = bean; GZ5 DI+3
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 4VF]tX?o
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); (JOR:
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if(tmpFile.exists ()) Z! /_H($
{ ,*V%
bFirst = false; >G?*rg4
read_nPos(); zO9WqP_`iR
} +#>nOn(B
else n|.eL8lX.<
{ zvnd@y{[
nStartPos = new long[bean.getNSplitter()]; ,
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nEndPos = new long[bean.getNSplitter()]; OP(om$xm
} fi'zk
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} wmbG$T%k
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public void run() 7/]Ra
{ }`0=\cKqn
//获得文件长度 k;Qm%B
//分割文件 2GigeN|1N
//实例FileSplitterFetch :Eg4^,QX
//启动FileSplitterFetch线程 T|$tQgY^
//等待子线程返回 X6!KFc
try{ T{3-H(-gA
if(bFirst) }#Ji"e
{ { O=_c|u{N
nFileLength = getFileSize(); ze8 MFz'm
if(nFileLength == -1) 'g<FL`iP
{ AKLFUk
System.err.println("File Length is not known!"); g("[wqgG
} .db:mSrL
else if(nFileLength == -2) UBnHtsM
{ yJ; ;&
System.err.println("File is not access!"); #K-O<:s=y
} Qdc#v\B
else oO
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{ Sng3 B
for(int i=0;i<nStartPos.length;i++) CC`#2j
{ >A L^y(G
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 0LHge7482
} ygV-Fv>PQ
for(int i=0;i<nEndPos.length-1;i++) S[/D._5QD%
{ >"]t4]GVf
nEndPos = nStartPos[i+1]; <c(%xh46
} 1X&scVw
nEndPos[nEndPos.length-1] = nFileLength; apxq] !
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} U6nC
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} KAT^v bR
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//启动子线程 up?S (.*B
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; v~!_DD
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for(int i=0;i<nStartPos.length;i++) )Y1+F,C
{ L_zB/(h
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), (iO/@iw
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 2+YM .Zl
nStartPos,nEndPos,i); S U P
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); u69G
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fileSplitterFetch.start(); :N4?W}r.
} ,{RWs^W2
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), LwI 4 2
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); P=4o)e7E!
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 1[Jv9S*f/
nEndPos = " + nFileLength); ]A_A4=[w
// fileSplitterFetch[nPos.length-1].start(); 2+\@0j[q
0)|;uW
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//等待子线程结束 U4y ?z
//int count = 0; _cc9+o
//是否结束while循环 wqQrby<
boolean breakWhile = false; rY=dNK]d
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while(!bStop) _~b]/]|z#N
{ OimqP
write_nPos();
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Utility.sleep(500); +oa>k
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breakWhile = true; <;E>1*K}8
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for(int i=0;i<nStartPos.length;i++) c~Z\|Y`#B
{ lJ4&kF=t
if(!fileSplitterFetch.bDownOver) EK^["_*A
{ j2!^iGS}
breakWhile = false; z]Mu8
break; EDGAaN*Q
} p~t5PU*(
}
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if(breakWhile) b@N*W]
break; bdyE9t
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//count++; mr#XN&e
//if(count>4) zJtB?<
// siteStop(); /{\mV(F(
}
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System.err.println("文件下载结束!"); .:+&2#b
} 8` f=Eh
catch(Exception e){e.printStackTrace ();} Eh?,-!SUQn
} C'//(gjQ-G
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//获得文件长度 RVe UQ%
public long getFileSize() [=KA5c<
{ A^hFRAg4
int nFileLength = -1; hQDZ%>
try{ hXsH9R
URL url = new URL(siteInfoBean.getSSiteURL()); P<gr=&
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); %N-f9o8
httpConnection.setRequestProperty("User-Agent","NetFox"); Mhj.3nN
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int responseCode=httpConnection.getResponseCode(); &o*f*(C2
if(responseCode>=400) 095ZZ20
{ dWAKIBe
processErrorCode(responseCode); 0hx EI
return -2; //-2 represent access is error :f58JLX
} Rd{#cW~
)o@-h85";
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String sHeader; 9zK5Y+!
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for(int i=1;;i++) LZG~1tf
{ #}{1>g{sXt
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); DU%j;`3
//Utility.log(in.readLine()); V:8ph`1
sHeader=httpConnection.getHeaderFieldKey(i); yzQ^KqLH
if(sHeader!=null) A#B6]j)
{ XT
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if(sHeader.equals("Content-Length")) MX{p)(HW
{ VY=c_Gl
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); *w;=o}`
break; AmmUoS\
} 27!9LU
} w %sHA
else [J.-gN$X@
break; <MH| <hP
} 5+[`x']l
} )cX6o[oia
catch(IOException e){e.printStackTrace ();} 4 06.6jmv
catch(Exception e){e.printStackTrace ();} _U`_;=(
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Utility.log(nFileLength); $'2yPoR
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return nFileLength; Tv{X$`%
} ekj@;6
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//保存下载信息(文件指针位置) #D-L>7,jA
private void write_nPos() c_xo6+:l
{ _XqD3?yH4
try{ ,^UNQO*{GI
output = new DataOutputStream(new FileOutputStream(tmpFile)); Uxq9H
output.writeInt(nStartPos.length); 62X;gb
for(int i=0;i<nStartPos.length;i++) ag$mc8-p[
{ 6(`Bl$M9
// output.writeLong(nPos); hKtc
output.writeLong(fileSplitterFetch.nStartPos); ~#b&UR
output.writeLong(fileSplitterFetch.nEndPos); .WR+)^&zz
} Z+< zKn}
output.close(); k-b0Eogp]
} 2vit{
catch(IOException e){e.printStackTrace ();} PfI~`ke
catch(Exception e){e.printStackTrace ();} 9aE!!
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} 6_# >s1`R
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//读取保存的下载信息(文件指针位置) V.RG=TVS
private void read_nPos() *@|EaH/
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try{ p -=+i
DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); Cku&s
int nCount = input.readInt(); q>T7};5m2
nStartPos = new long[nCount]; 8yH*
nEndPos = new long[nCount]; ?vgHu
for(int i=0;i<nStartPos.length;i++) SV4a_m?
{ 2<*DL6
nStartPos = input.readLong();
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nEndPos = input.readLong(); ; c'9Xyl-
} 4$+9Wv
input.close(); FBYAd@="2
} 75t\= 6#
catch(IOException e){e.printStackTrace ();} mE"?{~XVL
catch(Exception e){e.printStackTrace ();} HY,+;tf2r
} Q]Fm4
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private void processErrorCode(int nErrorCode) eUyQS I4A
{ \k{UqU+s
System.err.println("Error Code : " + nErrorCode); e>Vr#a4
} 2[W1EQI
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//停止文件下载 G &'eP
public void siteStop() KrhAObK
{ i>n.r_!E
bStop = true; s^X(G!V{c
for(int i=0;i<nStartPos.length;i++) ?G[<~J3-E
fileSplitterFetch.splitterStop(); @?A39G{
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} 8:%=@p>$
} :HrD[KT
//负责部分文件的抓取 k\T,CZ<
**FileSplitterFetch.java tdTD!'
*/ zDbjWd
package NetFox; 5} 9}4e
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import java.io.*; "#H@d+u
import java.net.*; J`T1 88
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public class FileSplitterFetch extends Thread {
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String sURL; //File URL pSQ)DqW
long nStartPos; //File Snippet Start Position 3@ a
long nEndPos; //File Snippet End Position x/NR_~Rnk
int nThreadID; //Thread's ID SMr
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boolean bDownOver = false; //Downing is over
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boolean bStop = false; //Stop identical 03ol!|X"9
FileAccessI fileAccessI = null; //File Access interface VJ`c/EVIt
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public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException FE+Y#
{ H[ 6L!
this.sURL = sURL; tn-_3C
this.nStartPos = nStart; Yx21~:9}
this.nEndPos = nEnd; :"+/M{qz
nThreadID = id; 'iM;e K
fileAccessI = new FileAccessI(sName,nStartPos);//定位 L lmdydC%
} W+[XNIg5
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public void run() EP.nVvuL
{ ~n:dHK`
while(nStartPos < nEndPos && !bStop) cqzd9L6=
{ mE3^5}[>
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try{ tAfdbt
URL url = new URL(sURL); N=J$+
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 1Ih.?7}
httpConnection.setRequestProperty("User-Agent","NetFox"); I\JJ7/S`t
String sProperty = "bytes="+nStartPos+"-"; SST1vzm!
httpConnection.setRequestProperty("RANGE",sProperty); /5^"n4/M
Utility.log(sProperty); k}-@N;zq
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InputStream input = httpConnection.getInputStream(); <qD/ #$
//logResponseHead(httpConnection); ITj0u&H:
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byte[] b = new byte[1024]; Hl"qLrb4
int nRead; dmHpF\P5f
while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) |oq27*ix~m
{ 4q"x|}a
nStartPos += fileAccessI.write(b,0,nRead); ^h+,Kn0@
//if(nThreadID == 1) YqsN#E3pf
// Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); G[4TT#
} xOCHP|?
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% AqUVt9}
Utility.log("Thread " + nThreadID + " is over!"); @5n!t1(
bDownOver = true; lv_|ws
//nPos = fileAccessI.write (b,0,nRead);
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} *I;,|Jj k
catch(Exception e){e.printStackTrace ();} Sa!r ,l
} 2}Dd{kC-
} tlw$/tMa
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//打印回应的头信息 +0U{CmH
public void logResponseHead(HttpURLConnection con) QUL^]6$
{ 1:<= zqh0
for(int i=1;;i++) y2k'^zE
{ :'aT4
String header=con.getHeaderFieldKey(i); ]M
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if(header!=null) ,-PzUR4_Kj
//responseHeaders.put(header,httpConnection.getHeaderField(header)); gakmg#ki
Utility.log(header+" : "+con.getHeaderField(header)); qms+s~oA
else qbjBN z
break; Ov1$7 r@
} /0Q=}:d
} y,&UST
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public void splitterStop() _{CMWo"l
{ |cpBoU
bStop = true; 2Y_ `&
} 7.fpGzUM
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} x\t)uM%
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)(~s-x^\z@
/* [Nb0&:$ay
**FileAccess.java `n%uvo}UT
*//文件访问(定位,写) s(56aE
package NetFox; tydD~a
import java.io.*; GOJ*>GpS
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public class FileAccessI implements Serializable{ ,bT|:T@ny
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//RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 O+I\Q?
RandomAccessFile oSavedFile; =}N&c4I[j
long nPos; [+0rlmB
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public FileAccessI() throws IOException xU$A/!oK
{ L><# I
this("",0); WP, Ll\K)7
} {awv=s
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public FileAccessI(String sName,long nPos) throws IOException ;,T3C:S?
{ tpe:]T/xh
oSavedFile = new RandomAccessFile(sName,"rw"); *,$cW,LN
this.nPos = nPos; 9(?9yFbj5
oSavedFile.seek(nPos); N3?hyR<T
} E$5)]<p! <
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public synchronized int write(byte[] b,int nStart,int nLen) M@$}Og
{ ~hi \*W6jg
int n = -1; AR9D;YfR~
try{ tL0<xGI5^
oSavedFile.write(b,nStart,nLen); ,ra!O=d~0
n = nLen; Sa5+_TW
} -dXlGOD+C
catch(IOException e) ? b;_T,S[
{ (_S`9Z8=
e.printStackTrace (); x]
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} u6o:~=WwM
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return n; \]Nlka
} VOc_7q_=
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} I&9_F%rX
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/* j#^EZ/
**SiteInfoBean.java H;('h#=cD
*/ kev|AU (WX
package NetFox; *1FDK{
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public class SiteInfoBean { cM&5SyxiuE
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private String sSiteURL; //Site's URL EfxW^zm)
private String sFilePath; //Saved File's Path C:S*juK
private String sFileName; //Saved File's Name Ore>j+
private int nSplitter; //Count of Splited Downloading File +ZH-'l
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public SiteInfoBean() y
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{//nSplitter的缺省值为5 T:
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//default value of nSplitter is 5 a!UQ]prT
this("","","",5); Z(Styn/x
} y|r+<
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public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) aYTVYg
{ ^L}ICm_#
sSiteURL= sURL; "R8: s
sFilePath = sPath; Ul"9zTH
sFileName = sName; 50,`=Z
this.nSplitter = nSpiltter; 5^kLNNum
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} ZJL8"(/R
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public String getSSiteURL() xBba&A]=
{ L`sg60z
return sSiteURL; Po(Y',xI[
} ug?gVK
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public void setSSiteURL(String value) X`-7: !+
{ p~(+4uA
sSiteURL = value; m Acny$u
} UZcsMMKH
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public String getSFilePath() :P,g,
{ 5ynBVrYf
return sFilePath; }~W:3A{7;
} k2bjBAT
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public void setSFilePath(String value) &%@e6..Ex
{ E6 g]EE
sFilePath = value; ;_$Q~X
} m1pge4*
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public String getSFileName() r4YiXss
{ &Hz{
return sFileName; dh9Qo4-{
} VtP^fM^{
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public void setSFileName(String value) w!/\dqjv
{ ,=_)tX^
sFileName = value; BE0Ov{'
} RB\
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public int getNSplitter() Oy}^|MFfA
{ ddTsR
return nSplitter; xL&evG#
} }l>\D~:M
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public void setNSplitter(int nCount) /EIQMZuYp
{ Ob ~7w[n3
nSplitter = nCount; ]QU
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}
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} MV{\:l}y
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/* -R]Iu\
**Utility.java vU,V[1^a
*/ GyC/39<P
package NetFox; '2S/FOb
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public class Utility { "|Ke/0rGB
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public Utility() =:M/hM)#
{ QGCg~TV;
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} @3w6!Sgh
*b}/fG)XZ
//线程睡眠 H|Y*TI2vf8
public static void sleep(int nSecond) U#iGR5&^3
{ a1>Tz
try{ sSLVR^
Thread.sleep(nSecond); P5JE = &M
} }ed{8"bj
catch(Exception e) kOE\.}~4
{ `@<~VWe5
e.printStackTrace (); <e?1&5 6
} Y|l&mK?
} en_W4\7^
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//日志 q)l1tC72
public static void log(String sMsg) d[\$a4G+
{ <Fi*wV
System.err.println(sMsg); tCR#TW+IY-
} MpVZL29)
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public static void log(int sMsg) [Ot<8)Jm
{ &s(mbpV
System.err.println(sMsg); c(kYCVc
} 4Uk\h gT0
} z',f'3+
+h)1NX;o1
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/* h3[x ZJO
**TestMethod.java FvJkb!5*e_
*/ KY%LqcC
package NetFox; n%ypxY0
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public class TestMethod { S-[S?&c`
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arc{:u.K
public TestMethod() w.(?O;
{ ///xx/weblogic60b2_win.exe |\U 5m6 q
try{ r h c&