/*
* 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.homepage.annotation;
import java.util.List;
import com.google.common.base.Joiner;
import com.google.common.collect.Lists;
import org.apache.isis.applib.annotation.HomePage;
import org.apache.isis.applib.services.homepage.AbstractHomePageDashboardService;
import org.apache.isis.core.commons.config.IsisConfiguration;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.facetapi.MetaModelValidatorRefiner;
import org.apache.isis.core.metamodel.facets.Annotations;
import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.FacetedMethod;
import org.apache.isis.core.metamodel.facets.actions.homepage.HomePageFacet;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.feature.Contributed;
import org.apache.isis.core.metamodel.spec.feature.ObjectAction;
import org.apache.isis.core.metamodel.specloader.validator.MetaModelValidatorComposite;
import org.apache.isis.core.metamodel.specloader.validator.MetaModelValidatorVisiting;
import org.apache.isis.core.metamodel.specloader.validator.MetaModelValidatorVisiting.Visitor;
import org.apache.isis.core.metamodel.specloader.validator.ValidationFailures;
public class HomePageFacetAnnotationFactory extends FacetFactoryAbstract implements MetaModelValidatorRefiner{
public HomePageFacetAnnotationFactory() {
super(FeatureType.ACTIONS_ONLY);
}
@Override
public void process(ProcessMethodContext processMethodContext) {
final HomePage annotation = Annotations.getAnnotation(processMethodContext.getMethod(), HomePage.class);
if (annotation == null) {
return;
}
final FacetedMethod facetHolder = processMethodContext.getFacetHolder();
FacetUtil.addFacet(new HomePageFacetAnnotation(facetHolder));
}
/* (non-Javadoc)
* @see org.apache.isis.core.metamodel.facetapi.MetaModelValidatorRefiner#refineMetaModelValidator(org.apache.isis.core.metamodel.specloader.validator.MetaModelValidatorComposite, org.apache.isis.core.commons.config.IsisConfiguration)
*/
@Override
public void refineMetaModelValidator(MetaModelValidatorComposite metaModelValidator, IsisConfiguration configuration) {
metaModelValidator.add(new MetaModelValidatorVisiting(newValidatorVisitor()));
}
private Visitor newValidatorVisitor() {
return new MetaModelValidatorVisiting.SummarizingVisitor() {
private final List<String> annotated = Lists.newArrayList();
@Override
public boolean visit(ObjectSpecification objectSpec, ValidationFailures validationFailures) {
final List<ObjectAction> objectActions = objectSpec.getObjectActions(Contributed.EXCLUDED);
if(objectSpec.getCorrespondingClass() == AbstractHomePageDashboardService.class) {
// ignore this one
return true;
}
for (ObjectAction objectAction : objectActions) {
if(objectAction.containsFacet(HomePageFacet.class)) {
final String fullIdentifier = objectAction.getIdentifier().toClassAndNameIdentityString();
// TODO: it would good to flag if the facet is found on any non-services, however
// ObjectSpecification.isService(...) can only be trusted once a PersistenceSession exists.
// this ought to be improved upon at some point...
annotated.add(fullIdentifier);
}
}
return true; // keep searching
}
@Override
public void summarize(ValidationFailures validationFailures) {
if(annotated.size()>1) {
for (String actionId : annotated) {
final List<String> others = Lists.newArrayList(annotated);
others.remove(actionId);
final String nonServiceNamesStr = Joiner.on(", ").join(others);
validationFailures.add(
"%s: other actions also specified as home page: %s ",
actionId, nonServiceNamesStr);
}
}
}
};
}
}