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.properties.choices.method;
021
022import java.lang.reflect.Method;
023
024import org.apache.isis.core.commons.lang.StringExtensions;
025import org.apache.isis.core.metamodel.adapter.mgr.AdapterManager;
026import org.apache.isis.core.metamodel.adapter.mgr.AdapterManagerAware;
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 PropertyChoicesFacetFactory extends MethodPrefixBasedFacetFactoryAbstract implements AdapterManagerAware {
036
037    private static final String[] PREFIXES = { MethodPrefixConstants.CHOICES_PREFIX };
038
039    private AdapterManager adapterManager;
040
041    public PropertyChoicesFacetFactory() {
042        super(FeatureType.PROPERTIES_ONLY, OrphanValidation.VALIDATE, PREFIXES);
043    }
044
045    @Override
046    public void process(final ProcessMethodContext processMethodContext) {
047
048        attachPropertyChoicesFacetIfChoicesMethodIsFound(processMethodContext);
049    }
050
051    private void attachPropertyChoicesFacetIfChoicesMethodIsFound(final ProcessMethodContext processMethodContext) {
052
053        final Method getMethod = processMethodContext.getMethod();
054        final String capitalizedName = StringExtensions.asJavaBaseName(getMethod.getName());
055
056        final Class<?> cls = processMethodContext.getCls();
057        final Class<?> returnType = getMethod.getReturnType();
058        final Method choicesMethod = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.CHOICES_PREFIX + capitalizedName, null, NO_PARAMETERS_TYPES);
059        if (choicesMethod == null) {
060            return;
061        }
062        processMethodContext.removeMethod(choicesMethod);
063
064        final FacetHolder property = processMethodContext.getFacetHolder();
065        FacetUtil.addFacet(new PropertyChoicesFacetViaMethod(choicesMethod, returnType, property, getSpecificationLoader(), getAdapterManager()));
066    }
067
068    // ///////////////////////////////////////////////////////
069    // Dependencies (injected)
070    // ///////////////////////////////////////////////////////
071
072    @Override
073    public void setAdapterManager(final AdapterManager adapterManager) {
074        this.adapterManager = adapterManager;
075    }
076
077    protected AdapterManager getAdapterManager() {
078        return adapterManager;
079    }
080
081}