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.persist;
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.facets.object.callbacks.PersistedCallbackFacet;
031import org.apache.isis.core.metamodel.facets.object.callbacks.PersistingCallbackFacet;
032import org.apache.isis.core.metamodel.methodutils.MethodScope;
033import org.apache.isis.core.progmodel.facets.MethodFinderUtils;
034import org.apache.isis.core.progmodel.facets.MethodPrefixBasedFacetFactoryAbstract;
035import org.apache.isis.core.progmodel.facets.MethodPrefixConstants;
036
037public class PersistCallbackViaSaveMethodFacetFactory extends MethodPrefixBasedFacetFactoryAbstract {
038
039    private static final String[] PREFIXES = { MethodPrefixConstants.SAVED_PREFIX, MethodPrefixConstants.SAVING_PREFIX, };
040
041    public PersistCallbackViaSaveMethodFacetFactory() {
042        super(FeatureType.OBJECTS_ONLY, OrphanValidation.VALIDATE, PREFIXES);
043    }
044
045    @Override
046    public void process(final ProcessClassContext processClassContext) {
047        final Class<?> cls = processClassContext.getCls();
048        final FacetHolder facetHolder = processClassContext.getFacetHolder();
049
050        final List<Facet> facets = new ArrayList<Facet>();
051        final List<Method> methods = new ArrayList<Method>();
052
053        Method method = null;
054        method = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.SAVING_PREFIX, void.class, NO_PARAMETERS_TYPES);
055        if (method != null) {
056            methods.add(method);
057            final PersistingCallbackFacet facet = facetHolder.getFacet(PersistingCallbackFacet.class);
058            if (facet == null) {
059                facets.add(new PersistingCallbackFacetViaMethod(method, facetHolder));
060            } else {
061                facet.addMethod(method);
062            }
063        }
064
065        method = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.SAVED_PREFIX, void.class, NO_PARAMETERS_TYPES);
066        if (method != null) {
067            methods.add(method);
068            final PersistedCallbackFacet facet = facetHolder.getFacet(PersistedCallbackFacet.class);
069            if (facet == null) {
070                facets.add(new PersistedCallbackFacetViaMethod(method, facetHolder));
071            } else {
072                facet.addMethod(method);
073            }
074        }
075
076        processClassContext.removeMethods(methods);
077        FacetUtil.addFacets(facets);
078    }
079
080}