001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.progmodel.facets.collections.collection;
021
022import org.apache.isis.core.metamodel.adapter.mgr.AdapterManager;
023import org.apache.isis.core.metamodel.adapter.mgr.AdapterManagerAware;
024import org.apache.isis.core.metamodel.facetapi.FacetHolder;
025import org.apache.isis.core.metamodel.facetapi.FeatureType;
026import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
027import org.apache.isis.core.metamodel.facets.typeof.TypeOfFacet;
028import org.apache.isis.core.metamodel.facets.typeof.TypeOfFacetDefaultToObject;
029import org.apache.isis.core.metamodel.facets.typeof.TypeOfFacetInferredFromArray;
030import org.apache.isis.core.metamodel.facets.typeof.TypeOfFacetInferredFromGenerics;
031import org.apache.isis.core.metamodel.specloader.collectiontyperegistry.CollectionTypeRegistry;
032import org.apache.isis.core.metamodel.specloader.collectiontyperegistry.CollectionTypeRegistryAware;
033
034public class CollectionFacetFactory extends FacetFactoryAbstract implements CollectionTypeRegistryAware, AdapterManagerAware {
035
036    private CollectionTypeRegistry collectionTypeRegistry;
037    private AdapterManager adapterManager;
038
039    public CollectionFacetFactory() {
040        super(FeatureType.OBJECTS_ONLY);
041    }
042
043    @Override
044    public void process(final ProcessClassContext processClassContaxt) {
045
046        if (collectionTypeRegistry.isCollectionType(processClassContaxt.getCls())) {
047            processCollectionType(processClassContaxt);
048        } else if (collectionTypeRegistry.isArrayType(processClassContaxt.getCls())) {
049            processAsArrayType(processClassContaxt);
050        }
051
052    }
053
054    private void processCollectionType(final ProcessClassContext processClassContext) {
055        final FacetHolder facetHolder = processClassContext.getFacetHolder();
056        final TypeOfFacet typeOfFacet = facetHolder.getFacet(TypeOfFacet.class);
057        if (typeOfFacet == null) {
058            final Class<?> collectionElementType = collectionElementType(processClassContext.getCls());
059            facetHolder.addFacet(collectionElementType != Object.class ? new TypeOfFacetInferredFromGenerics(collectionElementType, facetHolder, getSpecificationLoader()) : new TypeOfFacetDefaultToObject(facetHolder, getSpecificationLoader()));
060        } else {
061            // nothing
062        }
063        facetHolder.addFacet(new JavaCollectionFacet(facetHolder, getAdapterManager()));
064        return;
065    }
066
067    private void processAsArrayType(final ProcessClassContext processClassContaxt) {
068        final FacetHolder facetHolder = processClassContaxt.getFacetHolder();
069        facetHolder.addFacet(new JavaArrayFacet(facetHolder, getAdapterManager()));
070        facetHolder.addFacet(new TypeOfFacetInferredFromArray(processClassContaxt.getCls().getComponentType(), facetHolder, getSpecificationLoader()));
071    }
072
073    private Class<?> collectionElementType(final Class<?> cls) {
074        return Object.class;
075    }
076
077    // //////////////////////////////////////////////////////////////
078    // Dependencies (injected)
079    // //////////////////////////////////////////////////////////////
080
081    /**
082     * Injected since {@link CollectionTypeRegistryAware}.
083     */
084    @Override
085    public void setCollectionTypeRegistry(final CollectionTypeRegistry collectionTypeRegistry) {
086        this.collectionTypeRegistry = collectionTypeRegistry;
087    }
088
089    public AdapterManager getAdapterManager() {
090        return adapterManager;
091    }
092
093    @Override
094    public void setAdapterManager(final AdapterManager adapterManager) {
095        this.adapterManager = adapterManager;
096    }
097
098}