/*
* 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.viewer.dnd.viewer;
import org.apache.isis.core.commons.ensure.Assert;
import org.apache.isis.core.commons.exceptions.IsisException;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.feature.ObjectAssociation;
import org.apache.isis.core.metamodel.spec.feature.OneToManyAssociation;
import org.apache.isis.core.metamodel.spec.feature.OneToOneAssociation;
import org.apache.isis.viewer.dnd.view.Content;
import org.apache.isis.viewer.dnd.view.ContentFactory;
import org.apache.isis.viewer.dnd.view.collection.RootCollection;
import org.apache.isis.viewer.dnd.view.content.RootObject;
import org.apache.isis.viewer.dnd.view.field.OneToManyFieldImpl;
import org.apache.isis.viewer.dnd.view.field.OneToOneFieldImpl;
import org.apache.isis.viewer.dnd.view.field.TextParseableFieldImpl;
public class DefaultContentFactory implements ContentFactory {
@Override
public Content createRootContent(final ObjectAdapter object) {
Assert.assertNotNull(object);
final ObjectSpecification objectSpec = object.getSpecification();
if (objectSpec.isCollection()) {
return new RootCollection(object);
}
if (objectSpec.isNotCollection()) {
return new RootObject(object);
}
throw new IllegalArgumentException("Must be an object or collection: " + object);
}
@Override
public Content createFieldContent(final ObjectAssociation field, final ObjectAdapter object) {
Content content;
final ObjectAdapter associatedObject = field.get(object);
if (field instanceof OneToManyAssociation) {
content = new OneToManyFieldImpl(object, associatedObject, (OneToManyAssociation) field);
} else if (field instanceof OneToOneAssociation) {
final ObjectSpecification fieldSpecification = field.getSpecification();
if (fieldSpecification.isParseable()) {
content = new TextParseableFieldImpl(object, associatedObject, (OneToOneAssociation) field);
} else {
content = new OneToOneFieldImpl(object, associatedObject, (OneToOneAssociation) field);
}
} else {
throw new IsisException();
}
return content;
}
}