[SLIDER-57] Add basic component command order support

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Slider 0.30
• Fix Version/s: Slider 0.30
• Component/s: agent-provider
• Assignee: Sumit Mohanty
• Reporter: Sumit Mohanty
• Created: 14/May/14 21:32
• Updated: 20/May/14 03:10
• Resolved: 20/May/14 03:10

Description

Currently, a crude mechanism is used to order the start of component types - wait.heartbeat. This is not scalable and does not handle error.

Slider needs to support a formal ordering mechanism through dependencies across component type.

Proposal

At the current state, just ordering start across component types will be sufficient. The dependency can be defined as follows:

A depends on B
B depends on C
A depends on D
E does not depend on any and non depend on E

Over all partial order of starting the components is:

{D, C, E} --> {B} --> {A} 

This will be captured in the metainfo.xml.