Actor: User Application

Goal: Find network peer groups asynchronously

Description: Attempts to locate peer groups asynchronously until the query is complete or cancelled.

Preconditions:

1. The engine must be started.

None

Related Use Cases:

UC7.0 - Find Network Peer Groups
UC9.0 - List Known Network Peer Groups
UC10.0 - Cancel Find

Notes and Issues:

None

Event Flow:

1. The application registers to be informed when peer groups are found.
2. The application asks the engine to find all available peer groups.
3. The engine constructs an appropriate query message.
4. The engine sends the query message to all known peers.
5. For each located peer group, the engine calls the registered application.
6. After the engine determines the default timeout has elapsed, it returns the peer group list to the application.
7. The application removes its registration to listen for found peers groups.

UC8.1 Engine is not started

1. The application registers to be informed when peer groups are found.
2. The application asks the engine to find all available peer groups
3. The engine returns an error that the it has not been started.
4. The application removes its registration to listen for found peers groups.

Revision History

Name	Date	Reason for Change	Version