resort.engine¶

Package containing engine classes.

class resort.engine.ProfileManager(base_dir, work_dir, profiles)¶

Bases: object

Manager for profiles located in a directory.

Parameters:	base_dir (str) – Directory path of this manager. Must be absolute. work_dir (str) – Working directory. From base_dir if it is relative. profiles (dict) – Dictionary containing profile type and instance entries.

load(prof_name)¶

Load the profile with the given name.

Parameters:	prof_name (str) – Profile name.
Return type:	ProfileStub
Returns:	An stub to loaded profile.

store(prof_name, prof_type)¶

Store a profile with the given name and type.

Parameters:	prof_name (str) – Profile name. prof_type (str) – Profile type.

class resort.engine.ProfileStub(base_dir, prof_name, prof, prof_dir)¶

Bases: object

Stub of a Profile with a ComponentStubRegistry.

Parameters:	prof_name (str) – Profile name. prof (Profile) – Profile instance. prof_dir (str) – Profile working directory.

context()¶

Create an exectution context.

Return type:	execution.Context
Returns:	The created execution context.

prepare(props)¶

Prepare stubbed profile and return its properties.

Parameters:	props (dict) – Dictionary with previous properties.
Return type:	dict
Returns:	Properties dictionary.

component_list()¶

List of ComponentStub instances for this profile.

Return type:	list

component(comp_name)¶

Component with the specified name.

Parameters:	comp_name (str) – Specified component name.
Return type:	ComponentStub
Returns:	The component stub with the specified name.

class resort.engine.ComponentStub(comp_stub_reg, comp_name, prof)¶

Bases: object

Stub of a Component.

Parameters:	comp_stub_reg (ComponentStubRegistry) – Component stub registry. comp_name (str) – Component name. prof (Profile) – Owner profile.

name()¶

Component name.

Return type:	str

type_name()¶

Fully qualified name of component class or None.

Return type:	str

dependencies()¶

Yield ComponentStub of dependencies of this component.

available(context)¶

Return component availability.

Return type:	bool
Returns:	Component availability.

insert(context, plan)¶

Include an insert operation to the given plan.

Parameters:	context (execution.Context) – Current execution context. plan (list) – List of execution.Operation instances.

delete(context, plan)¶

Include a delete operation to the given plan.

Parameters:	context (execution.Context) – Current execution context. plan (list) – List of execution.Operation instances.

class resort.engine.ComponentStubRegistry(prof)¶

Bases: object

Registry of ComponentStub.

Parameters:	prof (Profile) – Involved profile.

get(comp_name)¶

Get the specified component.

Parameters:	comp_name (str) – Specified component name.
Return type:	ComponentStub
Returns:	Specified component stub.