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.encodeable;
021
022import com.google.common.base.Strings;
023
024import org.apache.isis.applib.annotation.Encodable;
025import org.apache.isis.core.commons.config.IsisConfiguration;
026import org.apache.isis.core.commons.config.IsisConfigurationAware;
027import org.apache.isis.core.commons.lang.StringExtensions;
028import org.apache.isis.core.metamodel.adapter.mgr.AdapterManager;
029import org.apache.isis.core.metamodel.adapter.mgr.AdapterManagerAware;
030import org.apache.isis.core.metamodel.facetapi.FacetHolder;
031import org.apache.isis.core.metamodel.facetapi.FacetUtil;
032import org.apache.isis.core.metamodel.facetapi.FeatureType;
033import org.apache.isis.core.metamodel.facets.Annotations;
034import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
035import org.apache.isis.core.metamodel.facets.object.encodeable.EncodableFacet;
036import org.apache.isis.core.metamodel.runtimecontext.ServicesInjector;
037import org.apache.isis.core.metamodel.runtimecontext.ServicesInjectorAware;
038
039public class EncodableAnnotationFacetFactory extends FacetFactoryAbstract implements IsisConfigurationAware, ServicesInjectorAware, AdapterManagerAware {
040
041    private IsisConfiguration configuration;
042
043    private AdapterManager adapterManager;
044    private ServicesInjector servicesInjector;
045
046    public EncodableAnnotationFacetFactory() {
047        super(FeatureType.OBJECTS_ONLY);
048    }
049
050    @Override
051    public void process(final ProcessClassContext processClassContaxt) {
052        FacetUtil.addFacet(create(processClassContaxt.getCls(), processClassContaxt.getFacetHolder()));
053    }
054
055    /**
056     * Returns a {@link EncodableFacet} implementation.
057     */
058    private EncodableFacet create(final Class<?> cls, final FacetHolder holder) {
059
060        // create from annotation, if present
061        final Encodable annotation = Annotations.getAnnotation(cls, Encodable.class);
062        if (annotation != null) {
063            final EncodableFacetAnnotation facet = new EncodableFacetAnnotation(cls, getIsisConfiguration(), holder, adapterManager, servicesInjector);
064            if (facet.isValid()) {
065                return facet;
066            }
067        }
068
069        // otherwise, try to create from configuration, if present
070        final String encoderDecoderName = EncoderDecoderUtil.encoderDecoderNameFromConfiguration(cls, getIsisConfiguration());
071        if (!Strings.isNullOrEmpty(encoderDecoderName)) {
072            final EncodableFacetFromConfiguration facet = new EncodableFacetFromConfiguration(encoderDecoderName, holder, adapterManager, servicesInjector);
073            if (facet.isValid()) {
074                return facet;
075            }
076        }
077
078        // otherwise, no value semantic
079        return null;
080    }
081
082    // ////////////////////////////////////////////////////////////////////
083    // Injected
084    // ////////////////////////////////////////////////////////////////////
085
086    public IsisConfiguration getIsisConfiguration() {
087        return configuration;
088    }
089
090    @Override
091    public void setConfiguration(final IsisConfiguration configuration) {
092        this.configuration = configuration;
093    }
094
095    @Override
096    public void setAdapterManager(final AdapterManager adapterManager) {
097        this.adapterManager = adapterManager;
098    }
099
100    @Override
101    public void setServicesInjector(final ServicesInjector dependencyInjector) {
102        this.servicesInjector = dependencyInjector;
103    }
104
105}