Package org.gcube.informationsystem.discovery.knowledge

Class ClasspathModelKnowledge

java.lang.Object

org.gcube.informationsystem.discovery.knowledge.ClasspathModelKnowledge

public class ClasspathModelKnowledge
extends Object

Manages the discovered knowledge for a specific model, including type hierarchies and usage information, sourced from classpath scanning.

Author:

Luca Frosini (ISTI - CNR)

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	created	Whether the knowledge base has been created.
protected Map<AccessType,Dag<Class<Element>>>	dags	A map of class hierarchy DAGs, keyed by access type.
protected Map<AccessType,Discovery<Element>>	discoveries	A map of discovery instances, keyed by access type.
protected Set<Package>	packages	The set of packages to be scanned.

Constructor Summary

Constructors

Constructor	Description
ClasspathModelKnowledge()	Constructs a new ClasspathModelKnowledge instance.

Method Summary

Modifier and Type	Method	Description
void	addPackages(Collection<Package> packages)	Adds a collection of packages to be scanned for model types.
void	createKnowledge()	Creates the knowledge base by discovering types, building hierarchies, and gathering usage information.
void	createKnowledge(boolean force)	Creates the knowledge base, with an option to force recreation.
void	createKnowledge(Collection<ClasspathModelKnowledge> modelKnowledges)	Creates the knowledge base by merging the classes already discovered by other, previously created ClasspathModelKnowledge instances, avoiding a redundant rescan of their packages.
Dag<Class<Element>>	getClassesDag(AccessType accessType)	Returns the class hierarchy DAG for a specific access type.
Discovery<Element>	getDiscovery(AccessType accessType)	Returns the discovery instance for a specific access type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

created

protected boolean created

Whether the knowledge base has been created.

dags

protected Map<AccessType,Dag<Class<Element>>> dags

A map of class hierarchy DAGs, keyed by access type.

discoveries

protected Map<AccessType,Discovery<Element>> discoveries

A map of discovery instances, keyed by access type.

packages

protected Set<Package> packages

The set of packages to be scanned.

Constructor Detail

ClasspathModelKnowledge

public ClasspathModelKnowledge()

Constructs a new ClasspathModelKnowledge instance.

Method Detail

createKnowledge

public void createKnowledge(boolean force)
                     throws Exception

Creates the knowledge base, with an option to force recreation.

Parameters:

force - true to force recreation of the knowledge base.

Throws:

Exception - if an error occurs during creation.

addPackages

public void addPackages(Collection<Package> packages)

Adds a collection of packages to be scanned for model types.

Parameters:

packages - The packages to add.

createKnowledge

public void createKnowledge()
                     throws Exception

Creates the knowledge base by discovering types, building hierarchies, and gathering usage information.

Throws:

Exception - if an error occurs during creation.

createKnowledge

public void createKnowledge(Collection<ClasspathModelKnowledge> modelKnowledges)
                     throws Exception

Creates the knowledge base by merging the classes already discovered by other, previously created ClasspathModelKnowledge instances, avoiding a redundant rescan of their packages.

Parameters:

modelKnowledges - The already-created model knowledges to merge.

Throws:

Exception - if an error occurs during creation.

getClassesDag

public Dag<Class<Element>> getClassesDag(AccessType accessType)

Returns the class hierarchy DAG for a specific access type.

Parameters:

accessType - The access type.

Returns:

The Dag of classes.

getDiscovery

public Discovery<Element> getDiscovery(AccessType accessType)

Returns the discovery instance for a specific access type.

Parameters:

accessType - The access type.

Returns:

The Discovery instance.