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.object.callbacks.load;
021
022import java.lang.reflect.Method;
023import java.util.ArrayList;
024import java.util.List;
025
026import org.apache.isis.core.metamodel.facetapi.Facet;
027import org.apache.isis.core.metamodel.facetapi.FacetHolder;
028import org.apache.isis.core.metamodel.facetapi.FacetUtil;
029import org.apache.isis.core.metamodel.facetapi.FeatureType;
030import org.apache.isis.core.metamodel.methodutils.MethodScope;
031import org.apache.isis.core.progmodel.facets.MethodFinderUtils;
032import org.apache.isis.core.progmodel.facets.MethodPrefixBasedFacetFactoryAbstract;
033import org.apache.isis.core.progmodel.facets.MethodPrefixConstants;
034
035public class LoadCallbackFacetFactory extends MethodPrefixBasedFacetFactoryAbstract {
036
037    private static final String[] PREFIXES = { MethodPrefixConstants.LOADED_PREFIX, MethodPrefixConstants.LOADING_PREFIX, };
038
039    public LoadCallbackFacetFactory() {
040        super(FeatureType.OBJECTS_ONLY, OrphanValidation.VALIDATE, PREFIXES);
041    }
042
043    @Override
044    public void process(final ProcessClassContext processClassContext) {
045        final Class<?> cls = processClassContext.getCls();
046        final FacetHolder facetHolder = processClassContext.getFacetHolder();
047
048        final List<Facet> facets = new ArrayList<Facet>();
049        final List<Method> methods = new ArrayList<Method>();
050
051        Method method = null;
052        method = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.LOADING_PREFIX, void.class, NO_PARAMETERS_TYPES);
053        if (method != null) {
054            methods.add(method);
055            facets.add(new LoadingCallbackFacetViaMethod(method, facetHolder));
056        }
057
058        method = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.LOADED_PREFIX, void.class, NO_PARAMETERS_TYPES);
059        if (method != null) {
060            methods.add(method);
061            facets.add(new LoadedCallbackFacetViaMethod(method, facetHolder));
062        }
063
064        processClassContext.removeMethods(methods);
065        FacetUtil.addFacets(facets);
066    }
067
068}