/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.isis.core.metamodel.facets.actions.defaults.method;
import java.lang.reflect.Method;
import java.util.List;
import org.apache.isis.core.commons.lang.StringExtensions;
import org.apache.isis.core.metamodel.facetapi.Facet;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.methodutils.MethodScope;
import org.apache.isis.core.metamodel.facets.MethodFinderUtils;
import org.apache.isis.core.metamodel.facets.MethodPrefixBasedFacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.MethodPrefixConstants;
/**
* Sets up all the {@link Facet}s for an action in a single shot.
*/
public class ActionDefaultsFacetViaMethodFactory extends MethodPrefixBasedFacetFactoryAbstract {
private static final String[] PREFIXES = { MethodPrefixConstants.DEFAULT_PREFIX };
/**
* Note that the {@link Facet}s registered are the generic ones from
* noa-architecture (where they exist)
*/
public ActionDefaultsFacetViaMethodFactory() {
super(FeatureType.ACTIONS_ONLY, OrphanValidation.VALIDATE, PREFIXES);
}
// ///////////////////////////////////////////////////////
// Actions
// ///////////////////////////////////////////////////////
@Override
public void process(final ProcessMethodContext processMethodContext) {
attachActionDefaultsFacetIfParameterDefaultsMethodIsFound(processMethodContext);
}
private static void attachActionDefaultsFacetIfParameterDefaultsMethodIsFound(final ProcessMethodContext processMethodContext) {
Method defaultsMethod = findDefaultsMethodReturning(processMethodContext, Object[].class);
if (defaultsMethod == null) {
defaultsMethod = findDefaultsMethodReturning(processMethodContext, List.class);
}
if (defaultsMethod == null) {
return;
}
processMethodContext.removeMethod(defaultsMethod);
final FacetHolder facetedMethod = processMethodContext.getFacetHolder();
final ActionDefaultsFacetViaMethod facet = new ActionDefaultsFacetViaMethod(defaultsMethod, facetedMethod);
FacetUtil.addFacet(facet);
}
private static Method findDefaultsMethodReturning(final ProcessMethodContext processMethodContext, final Class<?> returnType) {
final Method actionMethod = processMethodContext.getMethod();
final String capitalizedName = StringExtensions.asCapitalizedName(actionMethod.getName());
final String name = MethodPrefixConstants.DEFAULT_PREFIX + capitalizedName;
final Class<?> cls = processMethodContext.getCls();
return MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, name, returnType, new Class[0]);
}
}