Client server Imaging

Hello,
I need to make Client-Server Imaging, with JAI, I have two solutions. The first is to use RMI, the second IIP (there are two JAI operations which support IIP).
I would like to ask, what are the main difference between those two ways or tell me how to make a IIP-server ... if someone can help me ...
thanks.

The key to your problem is to truly start thinking in Java.
Hi, I'm doing the same work!
i'm trying to do a viewer in java that support the iip
server.
if you can help me...
thanks,
Denis

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Thumbnail images in Forms6 client/server

Hello,
Some help would be greatly appreciated on this matter. I would like to be able to display a thumbnail image of a picture on the web in an oracle, NON-WEB enabled form.
For example, when I open a form dealing with product details, I would like a piece of magic to retrieve a thumbnail image of the product from somewhere on the web, and display it on the form. Please note, in my situation it is not viable to store a scaled down version of the image int he database. The image must be located somewhere on the web.
Some research into this has pointed me to OLE, but I can't seem to find anythng relating OLE to images in forms.
Any ideas?
- A Developer Scorned.

Denis,
I followed the instructions in the link you gave (how to put animated icons in forms in which you instructed how to use an activeX control to display images in client/server forms.
I would like to thank you as it works beutifully, however there is one more question - Is there a way to get to image to scale or 'fit' to the size of the activeX control on the form
- A Developer Scorned.

Client Server Application with images or icons

I made a Client Server application with JFrames, but I put a jLabel with an icon, and I can't run the Client.
It says java.lang.NullPointerException
Do you know why I can't see the icon in the JLabel? It isn't an applet, it's an application with JFrames.

You have to explain the problem better if you want some help. Also show the code which is giving you the nullpointerexception(Do not forget codetags!).

How to minimize Client-Server Round-trip in ADF Faces application ?

Hi All,
We have just finished POC on our prototype of ADF Faces + ADF BC application. The POC Emphasizes on Bandwidth requirement.
After receing the result from the communication provider, including : TCP packets send, Bytes sent from/to server and number of Client-Server Round-Trip.
There are several part of the application that Must be tuned for the application to run on acceptable performance.
Here is some page/ function that should be tuned :
- First page, ADF Read Only Table with two images and some buttons, cause 5 round-trip
- ADF Dialog Returning Value (as LOV), cause 4 Round-trips
- On ADF Form, press Commit button, cause 3 Round-trips.
So the question is :
1) How to reduce round-trips on ADF Faces application ?
2) How to minimize the bytes send from / To server on a specific user action ?
Please give me some recommendation..
Thank you very much,
xtanto

Hi Frank and Steve,
Thank you for your reply.
Yes Frank, what I mean by Round-Trip is the traffic between Client and the Server. And Yes, we will use VSAT where the latency is 1 - 1.5 second, so that round-trip matters significantly.
What I will do is :
- use minimal skin and No image at all
- don't use Dialog for LOV because it requires AutoSubmit there.
- Use 'Apply-Changes' button to do server-side validation before Commit.
Then do the POC / testing again.
Thank you,
xtanto

Client/server application under development

Hi there,
I've been working on a client/server application that includes chat and whiteboard features. In terms of how the client app communicates with the server app, my initial thought was to just go with xml, until I reached a snag. Everything about chat and almost everything that is accomplished on the whiteboard can be expressed in terms of text or character data; which what makes xml a good candidate for moving the data back and forth from client to server. However, there's one part of the whiteboard feature that can't be converted to just text. The whiteboard has an ImageTool. With it you can select an image (gif,jpg) from your harddrive and load it into the whiteboard. An image is binary data and simply cannot be put into an xml file for transport. At least, that's my understanding. Am I wrong about this?
So, this poses the questions: "How do other similar applications like MSN Messenger move images around? If they're not using xml as there medium, what are they using? Just plain sockets without any structured medium like xml?"
Please advise,
Alan

You could always Base64 encode the image file content and then put the Base64 in XML.
I am in the middle of a client-server project and I use XStream ( http://xstream.codehaus.org/ ) to convert Objects to XML automatically. I don't have to do any explicit encoding - XStream does it all for me.

Best Approach to Share Photos in Client Server Environment

Ive been doing research on the best way to share scanned documents inside a client server application (PB11) but am not sure what's the quickest way to do it.
My brainstorm came up with:
1. Use MS SharePoint to share photos.
    Pros: Relatively quick to install
    Cons: Potentially difficult to maintain. No integration with PB application.
2. Use web server to share photos
    Pros: PB integration possible
    Cons: Difficult to maintain
3. Use Oracle database to store photos
    Pros: PB integration possible and easy to maintain
    Cons: Hardware resource demanding.
The idea is to be able to share scanned documents to different users which can be then associated with different business information such as journal entries, assets, customer application, and many others.
Of the three above which one would offer the quickest solution?

Hi Chris,
I have a Fujitsu software that can scan and store images to folders (may contain photos of assets, sorry for the mixup tween photo and image), sharepoint, but not to a web server - although now I suspect I can configure the webserver to just automap the file folders to the webserver's URL (I guess I had amnesia). However there's another feature which I haven't found out yet and that is whether the scanning software can store the metadata directly to the database. Most likely it doesn't thus the reason why sharePoint looks attractive. The other concerns you mentioned I believe I can handle at a later time.
Thank you.

Possible to use RMI to upload client side image files?

Is it possible to use RMI to upload client side image files? My intent is to allow remote clients to upload a number of small image files (jpg & gif) to a central server DBMS, by modifying a "Customer" object (eg adding a new Image object to a vector of Images?) Is this possible? Any suggestions greatly appreciated :))

Is it possible to use RMI to upload client side image
files? One possibility is to implement a serializable image object that you can upload to the server as any other object. When your server receives this serialized image object, just generate a new gif/jpg from it.
But if your client-program is an applet, the situation is different: how can applet read image-file from users harddrive?
krera

Client side image resize

Hi,
is client side image resizeit possible with flash? If so,
then from which version?
Cheers,
Sven

you have to load the image into flash before flash could do
anything. then if you want flash to resize the image that would
only require flash 4 and all that would be done on the client-side.
however, if you want to upload the file without using
server-side code you'll need flash 8.

Speed Oracle forms (web based) versus client server

2 years ago we've tested forms 9i
Everything went very smoothly:
We had no problems in converting our old forms to 9i.
We've installed a new database on a new server and we've installed a application server on a second server (Both servers had 2 CPU's and 2GB of memory).
In short everything worked perfectly ... except the speed.
Oracle forms (web based) are a lot slower than client-server forms on a LAN, so we kept developing client-server.
We just use forms on our own local network (100Mbit) but
we use a lot of triggers in our forms (perhaps the reason for the poor performance?)
Has anything changed?
Is it now possible to use web based forms, that are at leased as fast as client server forms?

OK, I agree: changing the form (more views, less post-query, more pl/sql on database) will improve performance.
But then I have to recreate every form (> 1000), so then converting c/s to web is not just recompile.
We don't use images in our forms, the database is connected to the application server with a gigabit line. We did tests when even the client was on gigabit, but c/s remains faster. We did the test with just 1 client. and we have never experienced a bottleneck on the network using c/s (even with post-query on millions of records)
So 1 database (2 Xeon CPU's 2GB RAM), 1 App server (2 XEON CPU's, 2GB RAM) and 1 client (XEON workstation, 512MB RAM) using web forms on a gigabit network is slower than the same client using forms (c/s) without an appl. server. => A lot more hardware for less performance?
In short my question: is the latest version of forms faster than the previous version?
Can webforms have the same performance as client server?

Client/Server to Web-Based application Conversion

Hi! Everyone,
I have couple of questions for you guys.
Our Client had recently upgraded Forms 4.5 to 6i to move from Client/Server based application to Web based application.
They are using Forms Server 6i Patch Set 1, OAS 4.0.8.1, Windows NT Service Pack 5 and Oracle 7.3. They are facing the following error every now and then, when they run the forms,
"FRM-92100: Your connection to the server was interrupted. This may be the result of a network error or a failure on the server.You will need to re-establish your session."
Please let me know what might be causing the above error. The only problem i can think about might be Oracle 7.3. If i am right only Oracle 8 and above supports Forms 6i.
Can anyone let me know some tips and/or techniques to upgrade Forms 4.5 to 6i. If there are any important settings/steps which we might have over looked during the upgrade, please list them.
Any kind of help is greatly appreciated.
Thanks,
Jeevan Kallem
[email protected]

Most of the code is use with no changes at all.
See otn.oracle.com/formsupgrade
Regards
Grant Ronald

Client/server program validation - is it possible?

I've been mulling over this problem for a few days, and am starting to wonder if it's theoretically possible to find a solution. I'm not looking for specific code, this probably won't even be implemented in Java, I'm just wondering if there is a theoretical program model that would work in this situation.
The short version:
Validate the data generated by a client program, without knowing the original data.
The long version:
This is a "profiling" system for a MMOG (Massively Multiplayer Online Game). The MMOG is an internet based client/server graphical program where each client connects to the server and they interact with each other and the virtual world. They pay a monthly fee for access to the game. My program is not affiliated with the MMOG or its makers. I have no connections inside the company and cannot expect any cooperation from them.
The "profiling" system is also a client/server model. The client program runs in the background while the MMOG client is active. It accesses the memory of the MMOG client to retrieve information about the player's character. Then, possibly on request or maybe immediately, it sends the character data to our server.
What I want to validate is that the character data being sent is unmodified and actually comes from the MMOG program.
I can reasonably expect that with mild encryption and some sort of checksum or digest, the vast majority of problems can be avoided. However, I am not sure it's possible to completely secure the system.
I assume that the user has access to and knowledge of the profiler client and the MMOG client, their assembly code, and the ability to modify them or create new programs, leveraging that knowledge. I also assume that the user does not have access to or knowledge of either of the server applications - the MMOG server or mine.
In a worst-case scenario, there are several ways they could circumvent any security I have yet been able to think of. For instance, they could set up a fake MMOG client that had the data they wanted in memory, and let the profiler access that instead of the real thing. Or, they could rewrite the profiler to use the data they wanted and still encrypt it using whatever format I had specified.
I have been considering using some kind of buffer overflow vulnerability or remote execution technique that would allow me to run specific parts of the client program on command, or get information by request, something that could not be anticipated prior to execution and thus could not be faked. But this seems not only insecure for the client but also not quite solid enough, depending on how it was implemented.
Perhaps a series of apparently random validation codes, where the client does not know which one actually is doing the validation, so it must honor them all. Again, this is very conceptual and I'm sure that I'm not explaining them very well. I'm open to ideas.
If I don't come up with anything better, I would consider relying on human error and the fact that the user will not know, at first, the relevance of some of the data being passed between client and server. In this case, I would include some kind of "security handshake" that looks like garbage to the client but actually is validated on the server end. A modified program or data file would result in an invalid handshake, alerting the server (and me) that this client was a potential problem. The client would have no idea anything had gone wrong, because they would not know what data the server was expecting to receive.
I hope I have not confused anyone too much. I know I've confused myself....

Yes, that is the general model for all MMOGs these days - no data that can actually affect the game is safe if loaded from the client's computer. All character and world data is sent from server to client and stored in memory. Any information that is saved to the client's computer is for reference only and not used by the game engine to determine the results of actions/events etc.
My program accesses the MMOG client's memory while the game is running, and takes the character information from there. It does not have direct access to the MMOG server, and does not attempt to modify the data or the memory. Instead, it just encrypts it and sends it to our server, where the information is loaded into a database.
The security issue comes into play because our database is used for ranking purposes, and if someone were to hack my program, they could send invalid data to our servers and affect the rankings unfairly.
I'm just trying to think of a way to prevent that from happening.

SENDING EMAIL USING ORACLE9i CLIENT/SERVER

I HAVE DOWNLOADED 2 UTILITY LIBRARIES D2KCOMN and D2KWUTIL TO MY COMPUTER. THESE 2 LIBRARIES ARE COPIED TO AN ORACLE FORM. ON THE FORM, THERS IS A BUTTON. IN THE WHEN-BUTTON-PRESSED-TRIGGER, I HAVE CODED
WIN_API_SHELL.WINEXEC('"C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\OUTLOOK.EXE"-c IPM.Note/m"'||:email.recipient_name||'&cc='||
:email.recipient_name2||'&subject='||:email.subject||
'&body='||:email.mes||'"',WIN_API.SW_SHOWNORMAL,TRUE);
:email.recipient_name,
:email.recipient_nam2,
:email.subject, and
:email.mess
ARE FIELDS ON THE ORACLE FORM.
THE NAMES ARE DEFINED BY THE PROGRAMMER.
THE NAMES OF THE FIELDS ARE NOT RESERVED WORDS.
WHEN THE CODE IS EXECUTED, MICROSOFT OUTLOOK IS OPENED AND THE RECIPIENT LINE, COURTESY COPY LINE, SUBJECT LINE
AND BODY OF A NEW MESSAGE ARE PREPOPUTATED WITH THESE FIELDS FROM AN ORACLE FORM.
THIS ROUTINE WORKS FINE ON AN ORACLE6i CLIENT SERVER BUT IT WILL NOT WORK WELL ON AN ORACLE9i CLIENT SERVER.
WHAT DO I NEED TO DO TO CHANGE MY CODE? DO I NEED TO USE NEW UTILITY LIBRARIES? I WOULD SURE LIKE TO KNOW WHAT TO DO.

Oracle9i Forms does not support client server - so you are running in a different environment (even though you may still only be onl two tiers).
Regards
Grant Ronald
Forms Product Management

Re: [iPlanet-JATO] Tomcat 3.2 serving images and html?

First of all David you are faster responding to email than I am. Thanks.
We tried your scheme with no luck. You are using "ROOT" as your war file
name ROOT, correct? Are you sure the jsp would reference
"/images/MyProject/nppnback.gif"? Why is "MyProject" in there? Where is
the directory "images" defined to Tomcat? Is it a default?
Here's another try at explaining:
In my JSP I have;
<IMG SRC="/images/ef.gif" ALT=People Banner">
My application is in webapps/EformsAppWar
(jsps in EformsAppWar/EformsApp/eforms/*.jsp)
(classes in EformsAppWar/WEB-INF/classes)
so images are in webapps/EformsAppWar/images
and there is, indeed a ef.gif there.
However with no server.xml changes (everything default), Tomcat 3.2
gives a 404 in his log and states in the 404 message that context is
null (CTX < >) and ca't find /images/ef.gif + NULL.
By the way I just noticed that in Tomcat 3.1 I have the images directory
directly under webapps.
----- Original Message -----
From: "David J.L. Martin" <<a href="/group/SunONE-JATO/post?protectID=114166018056146134184102046176231239071179066034">dave@t...</a>>
Date: Wednesday, May 23, 2001 3:35 pm
Subject: Re: [iPlanet-JATO] Tomcat 3.2 serving images and html?
This works:
If the doc root is webapps\ROOT --
Using defaults...jsp's would be put in
webapps\ROOT\MyProjectApp\MyProject\*.jsp
and images would be put in webapps\ROOT\images\*.gif
Then in your jsp...use the following reference:
"/images/MyProject/nppnback.gif">
That will work just using defaults and not playing with any of the
config files...
ie. webapps\ROOT\WEB-INF gets updated as well (with required
classes).
djm
TechPie
916 924-1832 (office)
916 730-4743 (mobile)
916 313-3531 (fax)
<a href="/group/SunONE-JATO/post?protectID=114232044112042209130232046248130100239179057215113109152006048067">dmushrush@e...</a> wrote:
Many of you are running Tomcat 3.2. Can anyone tell me how to get
images to be served by Tomcat. In 3.1 if I referenced /images/image.gif> in my JSP, I could just place the images
directory in the application
(context) directory.
The default docBase is webapp> that webapp> relative addressed as /images/image.gif but such is not the case.
I have put the images directory almost everyplace possible with no luck.
I have explicitly defined docBase in tomcat/conf/server.xml and still no
luck.
I currently have the following in conf/server.xml
<Context path="/EformsAppWar"
docBase="c:/tomcat/webapps/EformsAppWar"
crossContext="true"
debug="0"
reloadable="true" >
</Context>
I place images in that directory structure but still take 404's and in
the log it refers to context as /images ????
I'm probably doing something (or not doing something) foolish. Anybody> have a remedy.
<a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>
<a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>

First of all David you are faster responding to email than I am. Thanks.
We tried your scheme with no luck. You are using "ROOT" as your war file
name ROOT, correct? Are you sure the jsp would reference
"/images/MyProject/nppnback.gif"? Why is "MyProject" in there? Where is
the directory "images" defined to Tomcat? Is it a default?
Here's another try at explaining:
In my JSP I have;
<IMG SRC="/images/ef.gif" ALT=People Banner">
My application is in webapps/EformsAppWar
(jsps in EformsAppWar/EformsApp/eforms/*.jsp)
(classes in EformsAppWar/WEB-INF/classes)
so images are in webapps/EformsAppWar/images
and there is, indeed a ef.gif there.
However with no server.xml changes (everything default), Tomcat 3.2
gives a 404 in his log and states in the 404 message that context is
null (CTX < >) and ca't find /images/ef.gif + NULL.
By the way I just noticed that in Tomcat 3.1 I have the images directory
directly under webapps.
----- Original Message -----
From: "David J.L. Martin" <<a href="/group/SunONE-JATO/post?protectID=114166018056146134184102046176231239071179066034">dave@t...</a>>
Date: Wednesday, May 23, 2001 3:35 pm
Subject: Re: [iPlanet-JATO] Tomcat 3.2 serving images and html?
This works:
If the doc root is webapps\ROOT --
Using defaults...jsp's would be put in
webapps\ROOT\MyProjectApp\MyProject\*.jsp
and images would be put in webapps\ROOT\images\*.gif
Then in your jsp...use the following reference:
"/images/MyProject/nppnback.gif">
That will work just using defaults and not playing with any of the
config files...
ie. webapps\ROOT\WEB-INF gets updated as well (with required
classes).
djm
TechPie
916 924-1832 (office)
916 730-4743 (mobile)
916 313-3531 (fax)
<a href="/group/SunONE-JATO/post?protectID=114232044112042209130232046248130100239179057215113109152006048067">dmushrush@e...</a> wrote:
Many of you are running Tomcat 3.2. Can anyone tell me how to get
images to be served by Tomcat. In 3.1 if I referenced /images/image.gif> in my JSP, I could just place the images
directory in the application
(context) directory.
The default docBase is webapp> that webapp> relative addressed as /images/image.gif but such is not the case.
I have put the images directory almost everyplace possible with no luck.
I have explicitly defined docBase in tomcat/conf/server.xml and still no
luck.
I currently have the following in conf/server.xml
<Context path="/EformsAppWar"
docBase="c:/tomcat/webapps/EformsAppWar"
crossContext="true"
debug="0"
reloadable="true" >
</Context>
I place images in that directory structure but still take 404's and in
the log it refers to context as /images ????
I'm probably doing something (or not doing something) foolish. Anybody> have a remedy.
<a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>
<a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>

VPN Site-to-Site or VPN Client Server with Cisco IP Phone 8941 and 8945

Hi everyone,
I decide to deploy a CUCM (BE6K platform), SX20, and IP Phone 8941/8945 on Head Office and Cisco SX10 and IP Phone 8941/8945 for branch offices (actually 9 branch offices).
The connection will use internet connection for HO and each branch offices.
And the IT guy want to use kind a VPN client server or VPN site-to-site for the connection through internet,
what kind of VPN client server or VPN site-to-site that recommended for this deployment?
and what type of Cisco router that support that kind of VPN (the cheapest one will be great)?
So the SX10 and IP Phone 8941/8945 in branch offices can work properly through internet connection?
please advise
Regards,
Ovindo

Hi Leo,
technically, the ipsec users will not use up any premium license seats, so if you have 10 ipsec users connecting first, the premium seats are still free and so you can then still have 10 phones/anyconnect users connect.
However, the 250 you mention is the global platform limit, so it refers to the sum of premium and non-premium connections. Or in other words, you can have 240 ipsec users and 10 phones, but not 250 ipsec users and 10 phones.
If 250 ipsec users and 10 phones would try to connect, it would be first-in, first-served, e.g. you could have 248 ipsec users and 2 phones connected.
Note: since you have Essentials disabled I'm assuming you are referring to the legacy "Cisco vpnclient" (IKEv1 client) which does not require any license on the ASA. But for the benefit of others reading this thread: if you do have Anyconnect clients (using SSL or IPsec/IKEv2) for which you currently have an Essentials license, then note that the Essentials and Premium license cannot co-exist. So for e.g. 240 Anyconnect users and no phones, you can use Essentials. For 240 Anyconnect users and 10 phones, you need a 250-seat Premium license (and a vpn phone license).
hth
Herbert

How to delete the workbench client server name in FDM

Hi Gurus
How to delete/change the workbench client server name in FDQM?
regards
Sarilla

OK, I understand now. You are referring to the Load Balance Server Group. Yes, this can be done:
a) Browse to Oracle\Middleware\EPMSystem11R1\Products\FinancialDataQuality\SharedComponents\Config
b) Locate the LoadBalanceServerGroups.xml file
You can delete this file. The next time the workbench is launched it will ask you to set the load balance server group again and will create this file again.

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