/*
* 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.grid;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.isis.applib.layout.component.Grid;
import org.apache.isis.applib.services.grid.GridService;
import org.apache.isis.core.metamodel.facetapi.Facet;
import org.apache.isis.core.metamodel.facetapi.FacetAbstract;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
public class GridFacetDefault
extends FacetAbstract
implements GridFacet {
private static final Logger LOG = LoggerFactory.getLogger(GridFacetDefault.class);
public static Class<? extends Facet> type() {
return GridFacet.class;
}
public static GridFacet create(
final FacetHolder facetHolder,
final GridService gridService) {
return new GridFacetDefault(facetHolder, gridService);
}
private final GridService gridService;
private Grid grid;
private GridFacetDefault(
final FacetHolder facetHolder,
final GridService gridService) {
super(GridFacetDefault.type(), facetHolder, Derivation.NOT_DERIVED);
this.gridService = gridService;
}
public Grid getGrid() {
if (!gridService.supportsReloading() && this.grid != null) {
return this.grid;
}
final Class<?> domainClass = getSpecification().getCorrespondingClass();
this.grid = load(domainClass);
return this.grid;
}
private Grid load(final Class<?> domainClass) {
Grid grid = gridService.load(domainClass);
if(grid == null) {
grid = gridService.defaultGridFor(domainClass);
}
gridService.normalize(grid);
return grid;
}
private ObjectSpecification getSpecification() {
return (ObjectSpecification) getFacetHolder();
}
}