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.members.hidden.method;
021
022import java.lang.reflect.Method;
023
024import org.apache.isis.core.commons.lang.StringExtensions;
025import org.apache.isis.core.metamodel.facetapi.Facet;
026import org.apache.isis.core.metamodel.facetapi.FacetHolder;
027import org.apache.isis.core.metamodel.facetapi.FacetUtil;
028import org.apache.isis.core.metamodel.facetapi.FeatureType;
029import org.apache.isis.core.metamodel.methodutils.MethodScope;
030import org.apache.isis.core.progmodel.facets.MethodFinderUtils;
031import org.apache.isis.core.progmodel.facets.MethodPrefixBasedFacetFactoryAbstract;
032import org.apache.isis.core.progmodel.facets.MethodPrefixConstants;
033
034public class HiddenFacetViaHideMethodFacetFactory extends MethodPrefixBasedFacetFactoryAbstract {
035
036    private static final String[] PREFIXES = { MethodPrefixConstants.HIDE_PREFIX };
037
038    /**
039     * Note that the {@link Facet}s registered are the generic ones from
040     * noa-architecture (where they exist)
041     */
042    public HiddenFacetViaHideMethodFacetFactory() {
043        super(FeatureType.MEMBERS, OrphanValidation.VALIDATE, PREFIXES);
044    }
045
046    // ///////////////////////////////////////////////////////
047    // Actions
048    // ///////////////////////////////////////////////////////
049
050    @Override
051    public void process(final ProcessMethodContext processMethodContext) {
052        attachHideFacetIfHideMethodIsFound(processMethodContext);
053    }
054
055    public static void attachHideFacetIfHideMethodIsFound(final ProcessMethodContext processMethodContext) {
056
057        final Method getMethod = processMethodContext.getMethod();
058        final String capitalizedName = StringExtensions.asJavaBaseNameStripAccessorPrefixIfRequired(getMethod.getName());
059
060        final Class<?> cls = processMethodContext.getCls();
061        Method hideMethod = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.HIDE_PREFIX + capitalizedName, boolean.class, new Class[] {});
062        if (hideMethod == null) {
063            hideMethod = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.HIDE_PREFIX + capitalizedName, boolean.class, getMethod.getParameterTypes());
064            if (hideMethod == null) {
065                return;
066            }
067        }
068
069        processMethodContext.removeMethod(hideMethod);
070
071        final FacetHolder facetedMethod = processMethodContext.getFacetHolder();
072        FacetUtil.addFacet(new HideForContextFacetViaMethod(hideMethod, facetedMethod));
073    }
074
075}