EMA C++ Training Examples : EMA C++ Consumer Examples : 200 Series Examples : 290_Custom_Decode
 
290_Custom_Decode
Summary
=======
 
The 290_Custom_Decode application is provided as an example of OMM Consumer
application written to the EMA library.
 
This application demonstrates basic usage of the EMA library for accessing
and parsing of OMM Custom data from Data Feed Direct, directly
from an OMM Provider application, or from the Advanced Distribution
Server.
 
The 290_Custom_Decode showcases decoding of items on custom OMM domain.
Messages of a custom OMM domain may contain any container at any level of encoding.
 
Detailed Description
====================
 
The 290_Custom_Decode implements the following high level steps:
 
+ Implements OmmConsumerClient class in AppClient
- overrides desired methods
- provides own methods as needed, e.g. decode( const FieldList& )
- each of the method provided in this example use the ease of use
data extraction methods that are data type specific
+ Instantiates AppClient object that receives and processes item messages
+ Instantiates and modifies OmmConsumerConfig object
- sets user name to “user”
- sets host name on the preconfigured connection to “localhost”
- sets port on the preconfigured connection to “14002”
+ Instantiates an OmmConsumer object which initializes the connection
and logs into the specified server.
+ Opens a streaming item interest
- Custom Domain (133) IBM.XYZ item from DIRECT_FEED service
+ Processes data received from API for 60 seconds
- all received messages are processed on API thread of control
+ Exits
 
Note: if needed, these and other details may be modified to fit local
environment using EmaConfig.xml file.
 
Note: please refer to the EMA library ReadMe.txt file for details on
standard configuration.