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.collections.clear;
021
022 import java.lang.reflect.Method;
023
024 import org.apache.isis.core.commons.lang.NameUtils;
025 import org.apache.isis.core.metamodel.adapter.ObjectDirtier;
026 import org.apache.isis.core.metamodel.adapter.ObjectDirtierAware;
027 import org.apache.isis.core.metamodel.adapter.map.AdapterMap;
028 import org.apache.isis.core.metamodel.adapter.map.AdapterMapAware;
029 import org.apache.isis.core.metamodel.facetapi.FacetHolder;
030 import org.apache.isis.core.metamodel.facetapi.FacetUtil;
031 import org.apache.isis.core.metamodel.facetapi.FeatureType;
032 import org.apache.isis.core.metamodel.facets.collections.modify.CollectionClearFacet;
033 import org.apache.isis.core.metamodel.methodutils.MethodScope;
034 import org.apache.isis.core.progmodel.facets.MethodFinderUtils;
035 import org.apache.isis.core.progmodel.facets.MethodPrefixBasedFacetFactoryAbstract;
036 import org.apache.isis.core.progmodel.facets.MethodPrefixConstants;
037
038 public class CollectionClearFacetFactory extends MethodPrefixBasedFacetFactoryAbstract implements AdapterMapAware,
039 ObjectDirtierAware {
040
041 private static final String[] PREFIXES = { MethodPrefixConstants.CLEAR_PREFIX };
042
043 private AdapterMap adapterMap;
044 private ObjectDirtier objectDirtier;
045
046 public CollectionClearFacetFactory() {
047 super(FeatureType.COLLECTIONS_ONLY, PREFIXES);
048 }
049
050 @Override
051 public void process(final ProcessMethodContext processMethodContext) {
052 attachCollectionClearFacets(processMethodContext);
053
054 }
055
056 private void attachCollectionClearFacets(final ProcessMethodContext processMethodContext) {
057
058 final Method getMethod = processMethodContext.getMethod();
059 final String capitalizedName = NameUtils.javaBaseName(getMethod.getName());
060
061 final Class<?> cls = processMethodContext.getCls();
062 final Method method =
063 MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, MethodPrefixConstants.CLEAR_PREFIX + capitalizedName,
064 void.class, null);
065 processMethodContext.removeMethod(method);
066
067 final FacetHolder collection = processMethodContext.getFacetHolder();
068 FacetUtil.addFacet(createCollectionClearFacet(method, getMethod, collection));
069 }
070
071 private CollectionClearFacet createCollectionClearFacet(final Method clearMethodIfAny, final Method accessorMethod,
072 final FacetHolder collection) {
073 if (clearMethodIfAny != null) {
074 return new CollectionClearFacetViaMethod(clearMethodIfAny, collection);
075 } else {
076 return new CollectionClearFacetViaAccessor(accessorMethod, collection, getAdapterMap(), getObjectDirtier());
077 }
078 }
079
080 // ///////////////////////////////////////////////////////
081 // Dependencies (injected)
082 // ///////////////////////////////////////////////////////
083
084 protected AdapterMap getAdapterMap() {
085 return adapterMap;
086 }
087
088 @Override
089 public void setAdapterMap(final AdapterMap adapterMap) {
090 this.adapterMap = adapterMap;
091 }
092
093 protected ObjectDirtier getObjectDirtier() {
094 return objectDirtier;
095 }
096
097 @Override
098 public void setObjectDirtier(final ObjectDirtier objectDirtier) {
099 this.objectDirtier = objectDirtier;
100 }
101
102 }