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
020 package org.apache.isis.core.progmodel.facets.object.defaults.annotation;
021
022 import org.apache.isis.applib.annotation.Defaulted;
023 import org.apache.isis.core.commons.config.IsisConfiguration;
024 import org.apache.isis.core.commons.config.IsisConfigurationAware;
025 import org.apache.isis.core.commons.lang.StringUtils;
026 import org.apache.isis.core.metamodel.facetapi.FacetHolder;
027 import org.apache.isis.core.metamodel.facetapi.FacetUtil;
028 import org.apache.isis.core.metamodel.facetapi.FeatureType;
029 import org.apache.isis.core.metamodel.facets.AnnotationBasedFacetFactoryAbstract;
030 import org.apache.isis.core.metamodel.runtimecontext.DependencyInjector;
031 import org.apache.isis.core.metamodel.runtimecontext.DependencyInjectorAware;
032 import org.apache.isis.core.progmodel.facets.object.defaults.DefaultedFacetAbstract;
033 import org.apache.isis.core.progmodel.facets.object.defaults.DefaultsProviderUtil;
034
035 public class DefaultedAnnotationFacetFactory extends AnnotationBasedFacetFactoryAbstract implements
036 IsisConfigurationAware, DependencyInjectorAware {
037
038 private IsisConfiguration configuration;
039 private DependencyInjector dependencyInjector;
040
041 public DefaultedAnnotationFacetFactory() {
042 super(FeatureType.OBJECTS_ONLY);
043 }
044
045 @Override
046 public void process(final ProcessClassContext processClassContext) {
047 FacetUtil.addFacet(create(processClassContext.getCls(), processClassContext.getFacetHolder()));
048 }
049
050 private DefaultedFacetAbstract create(final Class<?> cls, final FacetHolder holder) {
051 final Defaulted annotation = getAnnotation(cls, Defaulted.class);
052
053 // create from annotation, if present
054 if (annotation != null) {
055 final DefaultedFacetAbstract facet =
056 new DefaultedFacetAnnotation(cls, getIsisConfiguration(), holder, getDependencyInjector());
057 if (facet.isValid()) {
058 return facet;
059 }
060 }
061
062 // otherwise, try to create from configuration, if present
063 final String providerName =
064 DefaultsProviderUtil.defaultsProviderNameFromConfiguration(cls, getIsisConfiguration());
065 if (!StringUtils.isNullOrEmpty(providerName)) {
066 final DefaultedFacetFromConfiguration facet =
067 new DefaultedFacetFromConfiguration(providerName, holder, getDependencyInjector());
068 if (facet.isValid()) {
069 return facet;
070 }
071 }
072
073 return null;
074 }
075
076 // ////////////////////////////////////////////////////////////////////
077 // Injected
078 // ////////////////////////////////////////////////////////////////////
079
080 public IsisConfiguration getIsisConfiguration() {
081 return configuration;
082 }
083
084 @Override
085 public void setIsisConfiguration(final IsisConfiguration configuration) {
086 this.configuration = configuration;
087 }
088
089 private DependencyInjector getDependencyInjector() {
090 return dependencyInjector;
091 }
092
093 @Override
094 public void setDependencyInjector(final DependencyInjector dependencyInjector) {
095 this.dependencyInjector = dependencyInjector;
096 }
097
098 }