/*
* 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.membergroups.annotprop;
import java.util.List;
import java.util.Properties;
import org.apache.isis.applib.annotation.MemberGroupLayout;
import org.apache.isis.applib.annotation.MemberGroupLayout.ColumnSpans;
import org.apache.isis.applib.annotation.MemberGroups;
import org.apache.isis.applib.annotation.Where;
import org.apache.isis.applib.filter.Filters;
import org.apache.isis.core.commons.config.IsisConfiguration;
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.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.object.membergroups.MemberGroupLayoutFacet;
import org.apache.isis.core.metamodel.progmodel.DeprecatedMarker;
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.ObjectAssociation;
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 MemberGroupLayoutFacetFactory extends FacetFactoryAbstract implements MetaModelValidatorRefiner, DeprecatedMarker {
public MemberGroupLayoutFacetFactory() {
super(FeatureType.OBJECTS_ONLY);
}
@Override
public void process(final ProcessClassContext processClassContext) {
FacetUtil.addFacet(create(processClassContext));
}
private MemberGroupLayoutFacet create(final ProcessClassContext processClassContext) {
final FacetHolder holder = processClassContext.getFacetHolder();
final Class<?> cls = processClassContext.getCls();
final Properties properties = processClassContext.metadataProperties("memberGroupLayout");
if(properties != null) {
return new MemberGroupLayoutFacetProperties(properties, holder);
}
final MemberGroupLayout mglAnnot = Annotations.getAnnotation(cls, MemberGroupLayout.class);
if (mglAnnot != null) {
return new MemberGroupLayoutFacetAnnotation(mglAnnot, holder);
}
final MemberGroups mgAnnot = Annotations.getAnnotation(cls, MemberGroups.class);
if (mgAnnot != null) {
return new MemberGroupsFacetAnnotation(mgAnnot, processClassContext.getFacetHolder());
}
return new MemberGroupLayoutFacetFallback(holder);
}
@Override
public void refineMetaModelValidator(MetaModelValidatorComposite metaModelValidator, IsisConfiguration configuration) {
metaModelValidator.add(new MetaModelValidatorVisiting(newValidatorVisitor()));
}
private Visitor newValidatorVisitor() {
return new MetaModelValidatorVisiting.Visitor() {
@Override
public boolean visit(ObjectSpecification objectSpec, ValidationFailures validationFailures) {
MemberGroupLayoutFacet facet = objectSpec.getFacet(MemberGroupLayoutFacet.class);
ColumnSpans columnSpans = facet.getColumnSpans();
final List<String> middle = facet.getMiddle();
final List<String> right = facet.getRight();
final int numCollections = numCollectionsOf(objectSpec);
if(columnSpans.getMiddle() == 0 && !middle.isEmpty()) {
validationFailures.add(
"%s: @MemberGroupLayout: middle (property) column is 0 for ColumnSpans (%s), but groups have been listed (%s). NB: ColumnSpans may have been defaulted if could not be parsed.",
objectSpec.getIdentifier().getClassName(),
columnSpans.name(), middle);
}
if(columnSpans.getMiddle() > 0 && middle.isEmpty()) {
// ignore; may want a gap, or there may just not be any properties to put in this column.
// validationFailures.add("%s MemberGroupLayout: middle (property) column is non-zero for ColumnSpans (%s), but no groups have been listed", objectSpec.getIdentifier().getClassName(), columnSpans.name());
}
if(columnSpans.getRight() == 0 && !right.isEmpty()) {
validationFailures.add(
"%s: @MemberGroupLayout: right (property) column is 0 for ColumnSpans (%s), but groups have been listed (%s). NB: ColumnSpans may have been defaulted if could not be parsed.", objectSpec.getIdentifier().getClassName(), columnSpans.name(), right);
}
if(columnSpans.getRight() > 0 && right.isEmpty()) {
// ignore; may want a gap, or there may just not be any properties to put in this column.
// validationFailures.add("%s MemberGroupLayout: right (property) column is non-zero for ColumnSpans (%s), but no groups have been listed", objectSpec.getIdentifier().getClassName(), columnSpans.name());
}
if(columnSpans.getCollections() == 0 && numCollections>0) {
validationFailures.add(
"%s: @MemberGroupLayout: collections column is 0 for ColumnSpans (%s), but there are (up to) %d visible collections",
objectSpec.getIdentifier().getClassName(), columnSpans.name(), numCollections);
}
return true;
}
@SuppressWarnings("unchecked")
private int numCollectionsOf(ObjectSpecification objectSpec) {
List<ObjectAssociation> objectCollections = objectSpec.getAssociations(
Contributed.EXCLUDED, Filters.and(ObjectAssociation.Filters.staticallyVisible(Where.OBJECT_FORMS), ObjectAssociation.Filters.COLLECTIONS));
return objectCollections.size();
}
};
}
}