/*
* 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.object.hidden.method;
import java.lang.reflect.Method;
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.facets.FacetedMethod;
import org.apache.isis.core.metamodel.facets.object.hidden.HiddenObjectFacet;
import org.apache.isis.core.metamodel.methodutils.MethodScope;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.feature.ObjectMember;
import org.apache.isis.core.metamodel.facets.MethodFinderUtils;
import org.apache.isis.core.metamodel.facets.MethodPrefixBasedFacetFactoryAbstract;
/**
* Installs the {@link HiddenObjectFacetViaMethod} on the
* {@link ObjectSpecification}, and copies this facet onto each
* {@link ObjectMember}.
*
* <p>
* This two-pass design is required because, at the time that the
* {@link #process(org.apache.isis.core.metamodel.facets.FacetFactory.ProcessClassContext)
* class is being processed}, the {@link ObjectMember member}s for the
* {@link ObjectSpecification spec} are not known.
*/
public class HiddenObjectFacetViaMethodFactory extends MethodPrefixBasedFacetFactoryAbstract {
private static final String HIDDEN_PREFIX = "hidden";
private static final String[] PREFIXES = { HIDDEN_PREFIX, };
public HiddenObjectFacetViaMethodFactory() {
super(FeatureType.EVERYTHING_BUT_PARAMETERS, OrphanValidation.VALIDATE, PREFIXES);
}
@Override
public void process(final ProcessClassContext processClassContext) {
for (final Class<?> returnType : new Class<?>[] { Boolean.class, boolean.class }) {
if (addFacetIfMethodFound(processClassContext, returnType)) {
return;
}
}
return;
}
@Override
public void process(final ProcessMethodContext processMethodContext) {
final FacetedMethod member = processMethodContext.getFacetHolder();
final Class<?> owningClass = processMethodContext.getCls();
final ObjectSpecification owningSpec = getSpecificationLoader().loadSpecification(owningClass);
final HiddenObjectFacet facet = owningSpec.getFacet(HiddenObjectFacet.class);
if (facet != null) {
facet.copyOnto(member);
}
}
private boolean addFacetIfMethodFound(final ProcessClassContext processClassContext, final Class<?> returnType) {
final Class<?> cls = processClassContext.getCls();
final FacetHolder facetHolder = processClassContext.getFacetHolder();
final Method method = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, HIDDEN_PREFIX, returnType, NO_PARAMETERS_TYPES);
if (method == null) {
return false;
}
FacetUtil.addFacet(new HiddenObjectFacetViaMethod(method, facetHolder));
processClassContext.removeMethod(method);
return true;
}
}