org.nasdanika.models.rules.util.RuleSetCapabilityFactory Maven / Gradle / Ivy

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package org.nasdanika.models.rules.util;

import java.util.function.Predicate;

import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.nasdanika.capability.emf.ResourceSetRequirement;
import org.nasdanika.common.ProgressMonitor;
import org.nasdanika.emf.persistence.ObjectLoaderCapabilityFactory;
import org.nasdanika.models.rules.RuleSet;
import org.nasdanika.ncore.util.NcoreResourceSet;

/**
 * Loads {@link RuleSet}. Requirement is RuleSet ID 
 */
public abstract class RuleSetCapabilityFactory extends ObjectLoaderCapabilityFactory, RuleSet> {

	@Override
	public boolean isFor(Class type, Object requirement) {
		return RuleSet.class == type && (requirement == null || requirement instanceof Predicate);
	}

	@Override
	protected RuleSet load(Predicate requirement, ResourceSet resourceSet, ProgressMonitor progressMonitor) {
		RuleSet ruleSet = (RuleSet) resourceSet.getEObject(getRuleSetURI(), true);
		return requirement == null || requirement.test(ruleSet) ? ruleSet : null;
	}
	
	protected abstract URI getRuleSetURI();
	
	@Override
	protected ResourceSetRequirement getResourceSetRequirement(Predicate serviceRequirement) {
		return new ResourceSetRequirement(new NcoreResourceSet(), null, null);
	}

}