This demo illustrates the key features
of Oracle® Application Server 10g Multimedia Tag Library for JSP. This
demo primarily illustrates how to apply different tags that are supported
by Oracle AS 10g Multimedia Tag Library for JSP. Multimedia Tag Library
provides media retrieval tags, which JSP developers can use to generate complete
HTML multimedia tags or create multimedia retrieval URLs for inclusion in
the customized use of an HTML multimedia tag. Multimedia Tag Library provides
media upload tags, which facilitate the development of multimedia applications
that upload media data into the database. Primarily this demo illustrates
the usage of the following media retrieval and media upload tags:
Media Retrieval Tags
embedImage
embedAudio
embedVideo
Media Upload Tags
uploadFormData
storeMedia
uploadFile
This demo is about an Online Webinar application where
the user can view different web seminars online. Besides this, there is an
Admin module using which the Administrator can upload web seminars into the
database.
Software Requirements
Following are the software required
for deploying and running this application:
Oracle Application Server 10g(9.0.4 or later) is
installed, available from OTN.
Oracle 9idatabase(release 9.2.0.1 or later) which
has support for Oracle interMedia, available
here.
ANT tool for building the Enterprise ARchive (EAR) file which
can be downloaded from Jakarta
Apache. This component is required for automatic building and deploying
of this demo application.
<IAS_HOME>
- The directory where Oracle Application Server 10g is installed.
For example if Oracle Application Server 10g is installed in c:\midtier
then <IAS_HOME> would be c:\midtier.
<J2EE_HOME> - The directory where the oc4j.jar
file exists within <IAS_HOME>. This is typically 2 directories under
<IAS_HOME>. For example, if you installedOracle Application Server
10g to c:\midtier then <J2EE_HOME> would be c:\midtier\j2ee\home.
<JAVA_HOME> - The directory where
the JDK is installed. For example if JDK is installed in c:\jdk1.4
then the <JAVA_HOME> would be c:\jdk1.4
<SAMPLE_HOME> - The directory where the
Online Webinar application sources are extracted from zip file . For example
if the zip file is extracted in c:\ then the <SAMPLE_HOME>
would be c:\MultimediaDemoApp
Introduction
Oracle® Application Server 10g Multimedia Tag Library
for JSP is one of the key new feature of OC4J 10g release.
Extracting the Source Code
On extracting the MultimediaDemoApp.zip file,
all the files are extracted into a MultimediaDemoApp folder.
Click here to view the directory
structure and description of sample files.
The sources in the directory structure will be used to
build and deploy the demo application. Upon deploying the demo application
(instructions given below), you will find a detailed explanation of the demo
along with access to all the source code.
Prerequisites for running
the Demo application
Before running the demo make sure
of the following:
1. Oracle Application Server 10g(9.0.4 or later)
is installed correctly.
2. The contents of the ZIP file when extracted should have the directory structure
as mentioned here .
3. To create the database objects required for the application,
execute the creation.sql existing under <SAMPLE_HOME>/sql
directory in SCOTT schema. You can do this by executing the following command
in SQL*Plus :
sqlplus> @<SAMPLE_HOME>/sql/creation.sql
4. Installing the Oracle Application Server 10g
Multimedia Tag Library for JSP
a. Download the Multimedia Tag Library for JSP (ordjsptag.zip)
as mentioned in the Software Requirements section
above. Unzip the downloaded ordjsptag.zip file. On unzipping,
ordjsptag.jar file is extracted.
b. Copy the ordjsptag.jar extracted in the above step
to <J2EE_HOME>/jsp/lib/taglib directory.
Automatic Building and Deploying
of the Demo application
This is an installation for automatic building and deploying
of the demo application into Oracle Application Server 10g using the
'ANT' utility.
STEP 1.
Edit the file <SAMPLE_HOME>/common.xml
in your favorite XML editor. Change the entries marked in bold according
to your system settings:
Folder where Oracle Application
Server 10g is installed
<JAVA_HOME>
The directory where the JDK is
installed.
<SAMPLE_HOME>
The directory where the Online
Webinar application sources are extracted from zip file
<DB_HOST>
The hostname of the machine where
Oracle database where database objects for the demo are created
is running.
<DB_PORT>
It is the port on the host machine
where the database listener is listening to .
<DB_SID>
It is the SID of the database.
<DB_USER>
It is the database schema where
the database objects are created.
<DB_PASSWD>
It is the password for the database
schema where the database objects are created.
STEP 2.
a. Please start the Oracle® Application Server 10g instance before
proceeding to the step 2(b).
b. To create the EAR file and deploy the demo application, go to the
directory <SAMPLE_HOME> on command
prompt and type
> ant
STEP 3.
To run the sample application, open your favorite
browser and access the following URL
http://<host_name>:<port>/multimediatagdemo
where,
<host_name>
Name of the machine where Oracle Application Server
10g is running. If the server is running on the local machine,
then even localhost would suffice.
<port>
Port on which the Oracle Application Server 10g
listens to HTTP requests. By default, this value is 7777.
Now, you are ready to run the demo application. For more information
on using the sample application, please refer to the section on Running
the Application.
Running the Demo application
Review the index page to
understand the demo, how it works and how the new features listed in the Introduction
section of this document are put to use.
There is a file named build.xml
provided in the <SAMPLE_HOME> directory. This file can
be used for re-creating an EAR file after any modifications to the sources
is made.
Note: Sample multimedia
data that is uploaded for the Seminar Category/Event in the demo is also available
for download. For this, please download the sample multimedia data from here.
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