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The Resource Manager uses Resource Descriptors to instantiate each resource in OpenNaaS. Moreover it provides the interface between the user and OpenNaaS to manage resources' life cycle. It delegates to Resource Repositories operations which depend on each resource type.
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A Capability represents a feature or an ability which a resource can do. Each resource type has a set of supported capabilities which define its features. . The list of capabilities for a given resource is a subset of these supported ones, and it is specified in the resource descriptor.
In OpenNaaS source code, capability is defined by org.opennaas.core.resources.capability.ICapability Java interface and partially implemented by org.opennaas.core.resources.capability.AbstractCapability Java abstract class in org.opennaas.core.resources project. Each concrete capability implements this Java class defining its own implementation.
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