Re: Server-Side ActiveX technology

2002-10-17 Thread Adrian Janssen

I think you need a Java to COM bridge - COM or COM+ being the server-side
version of ActiveX.

Look at:

the J-Integra Java-COM bridge
http://www.linar.com/

jacob (java to com bridge) and it's free.

http://danadler.com/jacob/


 -Original Message-
 From: Himar Carmona Delgado [SMTP:[EMAIL PROTECTED]]
 Sent: 16 October 2002 02:57
 To:   [EMAIL PROTECTED]
 Subject:  Server-Side ActiveX technology

 Hi,

 this question is in relation with Java and JSP.

 It is possible to create an instance of an ActiveX object (i.e.
 accesing an automation server like Word, Excel) at server-side with JSP
 (Java) and achieve the same functionality as at client-side with
 JavaScript
 (or JScript)?

 I already access Word from JavaScript with the function
 ActiveXObject. I'm searching a similar manner to obtain the same behavior,
 but at the server, (supposing the server is a Windows server).

 For those who are Java-JSP-adicted: ASP already do that. :) I'm
 joking...


 Himar Carmona Delgado
 Analista - Programador

 ..
 ..
 ..
 DESIC, S.L. (Desarrollos y Sistemas Informáticos Canarios, S.L.)
 Pedro de Vera, 36, 2º A - 35003 - Las Palmas de Gran Canaria -
 España
 Telf.: +34 928 374 026   Fax: +34 928 374 028
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need clarification

2002-10-17 Thread Kesavanarayanan, Ramesh (Cognizant)

Hi all,
Forgive me if this is off-topic
 In my application I have the following scenario. Let me know the fine
approach tothis situation.

Scenario - 1
---
1)  The user selects a file consisting of various auto rates.
2)  The system then reads this file (.csv , .xls) andfor each of the
rows in the file, the system validates certain rules.
3)  The system then displays the whole file in the browser in table
format.
4)  All those rows which do not satisfy the rules will be highlighjted
whereas the other rows will be displayed as such.
5)  The user can select one of the row and verify the autorates.

Scenario -2
I have a search screen. The user inputs the search criteria and clicks
Search button. The system retrieves the rows and displays them in multiple
pages 10 rows in each page.

The problem is that each row in a single page has 5 columns. Each column has
2 images one each for ascending and descending.
Default the order is Ascending.
When the user clicks on the descending button of a particular column in  a
page, I need to display the whole page in descending order. This has to be
done for all the columns in all the rows of all the pages.

My problem is basically about the performance issue. My client wants the
whole thing to be displayed in 2 minutes.

Kindly let me know your esteemed suggestions and approach to fit this

Regards

Ramesh Kesavanarayanan


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JSP / JavaBeans / Database

2002-10-17 Thread Ganesh Kamath D (RBIN/DBA-JOT) *
Hello:

I am planning to do a database application with JSPs. I am planning to use
JSP for pure presentation, JavaBeans for logic. I have Tomcat and Oracle
installed.

I am finding it difficult to locate a complete sample example on the web,
which will do the basic operation of add/modify/delete/query using JSP and
JavaBeans. I searched the JDC forums and unable to find any sample code.

I don't want to put any Java code in jsp files. Also I don't want to use
Servlets. Can anybody point me to any web page that you are aware of in
finding this type of example?

thanks and regards,
GK

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Pausing execution?

2002-10-17 Thread David Castro
I looked in the list archives, and didn't find an answer for my dilemma.

I've got a web application that mails all of the opt-in addresses in my
client's database. I want to avoid overloading his host's SMTP server, so I
want to delay execution between sending each email.

Can anyone tell me how to code this?

Also, I'm planning to write to the client a summary line with each email that
is sent, and flush the cache with each line. Will this keep the page alive? Or
will it eventually time out?

Thanks a million!

-David Castro
 email[at]davidcastro[dot]com
 http://jsp.davidcastro.com

__
Do you Yahoo!?
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Re: Pausing execution?

2002-10-17 Thread Ionel Condor
Hi,
beyween two consecutive 'send mail' you may introduce a sleep, as follows:
code
Thread.currentThread().sleep(time_in_miliseconds);
/code

Regards,
Ionel Condor.

- Original Message -
From: David Castro [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, October 17, 2002 1:41 PM
Subject: Pausing execution?


 I looked in the list archives, and didn't find an answer for my dilemma.

 I've got a web application that mails all of the opt-in addresses in my
 client's database. I want to avoid overloading his host's SMTP server, so
I
 want to delay execution between sending each email.

 Can anyone tell me how to code this?

 Also, I'm planning to write to the client a summary line with each email
that
 is sent, and flush the cache with each line. Will this keep the page
alive? Or
 will it eventually time out?

 Thanks a million!

 -David Castro
  email[at]davidcastro[dot]com
  http://jsp.davidcastro.com

 __
 Do you Yahoo!?
 Faith Hill - Exclusive Performances, Videos  More
 http://faith.yahoo.com


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Re: Checking client connection speed

2002-10-17 Thread Nimmons, Buster
Here is a java package which encapsulates just about every networking need
I've run across

http://www.savarese.org/oro/software/NetComponents.html

-Original Message-
From: Means, Garann R. [mailto:grmeans;DOC1.WA.GOV]
Sent: Wednesday, October 16, 2002 3:59 PM
To: [EMAIL PROTECTED]
Subject: Checking client connection speed


Hi,

Is there any simple means of getting the client's connection speed? I've
looked through the Servlets documentation as well as the standard
documentation and if the answer is there, I've missed it. But admittedly,
I'm no networking expert. A little push in the right direction would be a
great help.

Thanks in advance,
Garann Rose Means
_
ITAS2
(360) 570-3407
WA State Dept. of Corrections

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How to use xsl with JSP

2002-10-17 Thread Marcial Atienzar Navarro
Hello,

  I need to use xSL with JSP. I'm using jboss and oc4-j, is it possible? I know
something about coocon, but i don't want to use it.
  A lot of thanks,

MArcial Atienzar Navarro

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Re: Checking client connection speed

2002-10-17 Thread KEITH KOSMICKI
Java includes support for UDP and TCP sockets. PING requires support for the Internet 
Control Message Protocol (ICMP). Your only choice (at the moment), is to use native 
code, or to use java.lang.Runtime to execute an external ping application. You won't 
be able to develop a 100% Pure implementation.
NB - A native implementation that uses the Java Native Interface (JNI) is available 
for PING, in both English and Spanish. See 
http://www.geocities.com/SiliconValley/Bit/5716/ping/ for more details.
Hope this helps you buddy.
 
Keith E. Kosmicki
Applications Consultant
State of IL Human Services
STL Technology Partners

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Re: Checking client connection speed

2002-10-17 Thread Means, Garann R.
Thanks, Keith, and everyone else, for the suggestions! Hopefully I can get
something together.


-Original Message-
From: KEITH KOSMICKI [mailto:DHSPA07;DHS.STATE.IL.US]
Sent: October 17, 2002 - Thursday 8:01a
To: [EMAIL PROTECTED]
Subject: Re: Checking client connection speed


Java includes support for UDP and TCP sockets. PING requires support for the
Internet Control Message Protocol (ICMP). Your only choice (at the moment),
is to use native code, or to use java.lang.Runtime to execute an external
ping application. You won't be able to develop a 100% Pure implementation.
NB - A native implementation that uses the Java Native Interface (JNI) is
available for PING, in both English and Spanish. See
http://www.geocities.com/SiliconValley/Bit/5716/ping/ for more details.
Hope this helps you buddy.

Keith E. Kosmicki
Applications Consultant
State of IL Human Services
STL Technology Partners

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Re: Pausing execution?

2002-10-17 Thread Shawn Bayern
On Thu, 17 Oct 2002, Ionel Condor wrote:

 Hi,
 beyween two consecutive 'send mail' you may introduce a sleep, as follows:
 code
 Thread.currentThread().sleep(time_in_miliseconds);
 /code

Just a minor point:  Thread.sleep() is static, so there's no need to run
through currentThread().  You can just write

  Thread.sleep(millisec);

The other usage can be misleading, since it looks like you're applying
sleep() to a particular thread.  But sleep() always applies to the
currently executing thread; you can't make another thread sleep in this
fashion.

--
Shawn Bayern
JSTL in Action   http://www.jstlbook.com

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thread safety test...

2002-10-17 Thread Padhu Vinirs
This is a small jsp page I am testing to understand theisThreadSafe
attribute. I observe two strange things with Tomcat 4.1.12:

1. The code generated when isThreadSafe is set to true or false is the
same. ( new code is generated with each change ). How can code generated
for these two cases be the same ?

2. On Netscape 7.0 ( mozilla ), if I open 2 windows side-by-side, and
make calls,  Netscape finishes the call of one window before starting
the call of another window. Looks like mozilla is checking to see if the
url's are the same and then waiting ??? IE makes simultaneous calls and
hence the print values differ.

Anybody else notice this. Can anybody give some pointers for question 1 ?

here is the jsp code:


htmlbody

%@ page isThreadSafe=true %

%! int j=0; %


%
   for(int i=0; i = 10; i++ )
   {
   out.print(Value of j is  + j + br/);
   j++;
   Thread.currentThread().sleep(3000);
   }
%

/body/html



Thanks

-- padhu

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Re: Question on documentation...

2002-10-17 Thread Hans Bergsten
Paul Toyn wrote:

The following is a snippet from the Jakarta-Tomcat configuration and
testing documentation:

Once you compile HelloServlet.java, put HelloServlet.class in
install_dir/webapps/ROOT/WEB-INF/classes. After compiling the code,
access the servlet with the URL http://localhost/servlet/HelloServlet
... You should get a simple HTML page that says Hello. If this URL
fails but the test of the server itself succeeded, you probably put the
class file in the wrong directory.

I've followed the example and everything is working up to the point
above.   I compiled the java code and it compiled without a hitch, but I
do get a 404 error when I try the URL. The test of the server did
succeed.  I placed the class file into the folder as indicated.   Is the
documentation correct?  Where does the folder servlet get involved?
What am I doing wrong?


Is this with Tomcat 4.1.12? If so, it's because the invoker (the
servlet mapped to the /servlet/* path) is disabled by default starting
with this version due to security concerns. See the release notes for
details.

In general, you should use explicit mappings for all servlets instead
of using the invoker. Add this to the web.xml file for the application
(e.g. webapps/ROOT/WEB-INF/web.xml for the Tomcat default application):

  servlet
servlet-namehello/servlet-name
servlet-classHelloServlet/servlet-class
  /servlet
  ...
  servlet-mapping
servlet-namehello/servlet-name
url-pattern/hello/*/url-pattern
  /servlet-mapping

After restarting the web container (Tomcat), you can use a URL like
this to invoke it:

  http://localhost:8080/hello

Hans
--
Hans Bergsten   [EMAIL PROTECTED]
Gefion Software http://www.gefionsoftware.com
JavaServer Pageshttp://TheJSPBook.com

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Question on documentation...

2002-10-17 Thread Paul Toyn
The following is a snippet from the Jakarta-Tomcat configuration and
testing documentation:

Once you compile HelloServlet.java, put HelloServlet.class in
install_dir/webapps/ROOT/WEB-INF/classes. After compiling the code,
access the servlet with the URL http://localhost/servlet/HelloServlet
... You should get a simple HTML page that says Hello. If this URL
fails but the test of the server itself succeeded, you probably put the
class file in the wrong directory.

I've followed the example and everything is working up to the point
above.   I compiled the java code and it compiled without a hitch, but I
do get a 404 error when I try the URL. The test of the server did
succeed.  I placed the class file into the folder as indicated.   Is the
documentation correct?  Where does the folder servlet get involved?
What am I doing wrong?

Let me know,  thx.

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Re: about getRemoteHost()

2002-10-17 Thread John Ghidiu
In fact, if the router does change the FROM field, the TCP/IP connection is 
effectively terminated because the receiving end can no longer reply (even with an 
ACK) that the packet was received. However, a proxy is allowed to (and often does) 
change the packet. Be aware of that in your programming (which means, among other 
things, no session tracking via IP address).

John

-Original Message-
From: Peter Dolukhanov [mailto:peter.dolukhanov;NCL.AC.UK]
Sent: Wednesday, October 16, 2002 10:17 AM
To: [EMAIL PROTECTED]
Subject: Re: [JSP-INTEREST] about getRemoteHost()


From my knowledge of networking, a router (or routers) will not change
the From field of an IP packet, they just forward the packet onto a node
closer to it's destination. As even this e-mail bounces through umpteen
routers, and none of these will modify the remote address. So, as far I
can tell this won't happen - what you have to worry about is Web Proxies
as these do send the request to the web server themselves, and your web
server will see them as the remote host and not you.

Regards,
Peter Dolukhanov

-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:JSP-INTEREST;JAVA.SUN.COM] On Behalf Of randie ursal
Sent: 16 October 2002 03:07
To: [EMAIL PROTECTED]
Subject: about getRemoteHost()

hi,

i want some idea on this.

i have a setup where my WebServer is separated by a Router from a
User.
when the user access the webserver it has to pass through the
router, so my
question is what would be return by the method getRemoteHost()?

is it the IP address of the Router or the User Workstation?

thanks a lot.
  randie


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Re: about getRemoteHost()

2002-10-17 Thread Zerbe John W
If your app is facing the internet, its best to assume that the ip address that you 
recieve is that of some AOL proxy server.
It this address is really only good for reporting on where your requests are probably 
coming from. 
In our environment, we have a reverse proxy in front of our web servers. Our apps 
always see the address of our own proxy server.

-Original Message-
From: John Ghidiu [mailto:johnghidiu;BENDERSON.COM]
Sent: Thursday, October 17, 2002 2:19 PM
To: [EMAIL PROTECTED]
Subject: Re: about getRemoteHost()


In fact, if the router does change the FROM field, the TCP/IP connection is 
effectively terminated because the receiving end can no longer reply (even with an 
ACK) that the packet was received. However, a proxy is allowed to (and often does) 
change the packet. Be aware of that in your programming (which means, among other 
things, no session tracking via IP address).

John

-Original Message-
From: Peter Dolukhanov [mailto:peter.dolukhanov;NCL.AC.UK]
Sent: Wednesday, October 16, 2002 10:17 AM
To: [EMAIL PROTECTED]
Subject: Re: [JSP-INTEREST] about getRemoteHost()


From my knowledge of networking, a router (or routers) will not change
the From field of an IP packet, they just forward the packet onto a node
closer to it's destination. As even this e-mail bounces through umpteen
routers, and none of these will modify the remote address. So, as far I
can tell this won't happen - what you have to worry about is Web Proxies
as these do send the request to the web server themselves, and your web
server will see them as the remote host and not you.

Regards,
Peter Dolukhanov

-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:JSP-INTEREST;JAVA.SUN.COM] On Behalf Of randie ursal
Sent: 16 October 2002 03:07
To: [EMAIL PROTECTED]
Subject: about getRemoteHost()

hi,

i want some idea on this.

i have a setup where my WebServer is separated by a Router from a
User.
when the user access the webserver it has to pass through the
router, so my
question is what would be return by the method getRemoteHost()?

is it the IP address of the Router or the User Workstation?

thanks a lot.
  randie


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Re: Pausing execution?

2002-10-17 Thread Amit Ghaste
another thought

the mail server is rather an asynchronous job. it is sent to the mailing
queue... but I guess you could do what Condor suggests.

never make a user wait too long :)...

Regards,
Amit

-Original Message-
From: A mailing list about Java Server Pages specification and reference
[mailto:JSP-INTEREST;JAVA.SUN.COM]On Behalf Of Ionel Condor
Sent: Thursday, October 17, 2002 5:48 AM
To: [EMAIL PROTECTED]
Subject: Re: Pausing execution?


Hi,
beyween two consecutive 'send mail' you may introduce a sleep, as follows:
code
Thread.currentThread().sleep(time_in_miliseconds);
/code

Regards,
Ionel Condor.

- Original Message -
From: David Castro [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, October 17, 2002 1:41 PM
Subject: Pausing execution?


 I looked in the list archives, and didn't find an answer for my dilemma.

 I've got a web application that mails all of the opt-in addresses in my
 client's database. I want to avoid overloading his host's SMTP server, so
I
 want to delay execution between sending each email.

 Can anyone tell me how to code this?

 Also, I'm planning to write to the client a summary line with each email
that
 is sent, and flush the cache with each line. Will this keep the page
alive? Or
 will it eventually time out?

 Thanks a million!

 -David Castro
  email[at]davidcastro[dot]com
  http://jsp.davidcastro.com

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Re: JSP / JavaBeans / Database

2002-10-17 Thread Vikramjit Singh
 -Original Message-
 From: Ganesh Kamath D (RBIN/DBA-JOT) *
 [mailto:Ganesh.Kamath;IN.BOSCH.COM]
 Sent: Thursday, October 17, 2002 3:09 AM
 To: [EMAIL PROTECTED]
 Subject: JSP / JavaBeans / Database
 Importance: High


 Hello:

 I am planning to do a database application with JSPs. I am
 planning to use
 JSP for pure presentation, JavaBeans for logic. I have Tomcat
 and Oracle
 installed.

 I am finding it difficult to locate a complete sample example
 on the web,
 which will do the basic operation of add/modify/delete/query
 using JSP and
 JavaBeans. I searched the JDC forums and unable to find any
 sample code.

 I don't want to put any Java code in jsp files. Also I don't
 want to use
 Servlets. Can anybody point me to any web page that you are
 aware of in
 finding this type of example?

http://www.akadia.com/services/java_tips.html

 thanks and regards,
 GK

Vikram.

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obtaining date and time in suitable format for MySQL

2002-10-17 Thread hugo
Hi

I am javing a jsp file where I would like to get the current date and
time to be inserted in fields of an SQL table. The date should go into
the MySQL date field and hence should be of format -mm-dd. I tried
to use java.sql.Date, but I couldn't get it to work. If I simply use

long date = 0;
java.sql.Date sqlDate = new java.sql.Date(date);
int year = sqlDate.getYear();

I get back 70. So obviously I have to get the year from the machine's
time, which is a linux box with Redhat 7.3.

So I tried this:

long date = 0;
java.sql.Date sqlDate = new java.sql.Date(date);
String thetime = sqlDate(System.currentTimeinMillis());
out.println (SQL time is  + thetime);

But this didn't work either.

How do you do this?

In addition, I would like to get the time, but in decimal format i.e.
rather than 11:15 I would like to get 11.25

Is there a way of doing this?

Any help will be greatly appreciated.

Thanks

Hugo
--
Dr Hugo Bouckaert
Systems and Programming Engineer

GeoInformatics Exploration Australia P/L
57 Havelock St
West Perth, WA 6005
PO Box 1675, West Perth 6872

Ph:   61 08 9420 7400
Fax:  61 08 9226 1299

www.geoinformex.com


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