/*
* 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.title.methods;
import java.lang.reflect.Method;
import org.apache.isis.applib.services.i18n.TranslatableString;
import org.apache.isis.applib.services.i18n.TranslationService;
import org.apache.isis.core.commons.lang.ClassExtensions;
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.object.title.TitleFacet;
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.fallback.FallbackFacetFactory;
public class TitleFacetViaMethodsFactory extends MethodPrefixBasedFacetFactoryAbstract {
private static final String TO_STRING = "toString";
private static final String TITLE = "title";
private static final String[] PREFIXES = { TO_STRING, TITLE, };
public TitleFacetViaMethodsFactory() {
super(FeatureType.OBJECTS_ONLY, OrphanValidation.VALIDATE, PREFIXES);
}
/**
* If no title or toString can be used then will use Facets provided by
* {@link FallbackFacetFactory} instead.
*/
@Override
public void process(final ProcessClassContext processClassContext) {
final Class<?> cls = processClassContext.getCls();
final FacetHolder facetHolder = processClassContext.getFacetHolder();
Method method = MethodFinderUtils.findMethod(
cls, MethodScope.OBJECT,
TITLE,
new Class<?>[]{String.class, TranslatableString.class},
null);
if (method != null) {
processClassContext.removeMethod(method);
final TranslationService translationService = servicesInjector.lookupService(TranslationService.class);
// sadness: same as in TranslationFactory
final String translationContext = method.getDeclaringClass().getName() + "#" + method.getName() + "()";
final TitleFacetViaTitleMethod facet = new TitleFacetViaTitleMethod(method, translationService, translationContext, facetHolder);
FacetUtil.addFacet(facet);
return;
}
// may have a facet by virtue of @Title, say.
final TitleFacet existingTitleFacet = facetHolder.getFacet(TitleFacet.class);
if(existingTitleFacet != null && !existingTitleFacet.isNoop()) {
return;
}
try {
method = MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, TO_STRING, String.class, null);
if (method == null) {
return;
}
if (ClassExtensions.isJavaClass(method.getDeclaringClass())) {
return;
}
processClassContext.removeMethod(method);
FacetUtil.addFacet(new TitleFacetViaToStringMethod(method, facetHolder));
} catch (final Exception e) {
return;
}
}
}