/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.isis.core.metamodel.facets.object.facets;
import java.util.ArrayList;
import java.util.List;
import org.apache.isis.core.commons.exceptions.IsisException;
import org.apache.isis.core.commons.factory.InstanceUtil;
import org.apache.isis.core.metamodel.facetapi.Facet;
import org.apache.isis.core.metamodel.facetapi.FacetAbstract;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facets.FacetFactory;
import org.apache.isis.core.metamodel.facets.object.facets.FacetsFacet;
public abstract class FacetsFacetAbstract extends FacetAbstract implements FacetsFacet {
public static Class<? extends Facet> type() {
return FacetsFacet.class;
}
private final Class<? extends FacetFactory>[] facetFactories;
public FacetsFacetAbstract(final String[] names, final Class<?>[] classes, final FacetHolder holder) {
super(type(), holder, Derivation.NOT_DERIVED);
final List<Class<? extends FacetFactory>> facetFactories = new ArrayList<Class<? extends FacetFactory>>();
for (final String name : names) {
final Class<? extends FacetFactory> facetFactory = facetFactoryOrNull(name);
if (facetFactory != null) {
facetFactories.add(facetFactory);
}
}
for (final Class<?> classe : classes) {
final Class<? extends FacetFactory> facetFactory = facetFactoryOrNull(classe);
if (facetFactory != null) {
facetFactories.add(facetFactory);
}
}
this.facetFactories = asArray(facetFactories);
}
@SuppressWarnings("unchecked")
private Class<? extends FacetFactory>[] asArray(final List<Class<? extends FacetFactory>> facetFactories) {
return facetFactories.toArray(new Class[] {});
}
@Override
public Class<? extends FacetFactory>[] facetFactories() {
return facetFactories;
}
private Class<? extends FacetFactory> facetFactoryOrNull(final String classCandidateName) {
if (classCandidateName == null) {
return null;
}
Class<?> classCandidate = null;
try {
classCandidate = InstanceUtil.loadClass(classCandidateName);
return facetFactoryOrNull(classCandidate);
} catch (final IsisException ex) {
return null;
}
}
@SuppressWarnings("unchecked")
private Class<? extends FacetFactory> facetFactoryOrNull(final Class<?> classCandidate) {
if (classCandidate == null) {
return null;
}
return (Class<? extends FacetFactory>) (FacetFactory.class.isAssignableFrom(classCandidate) ? classCandidate : null);
}
}