/**
* 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.json.viewer.resources.domainobjects;
import java.util.Collection;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.viewer.json.applib.JsonRepresentation;
import org.apache.isis.viewer.json.applib.RepresentationType;
import org.apache.isis.viewer.json.applib.links.Rel;
import org.apache.isis.viewer.json.viewer.ResourceContext;
import org.apache.isis.viewer.json.viewer.representations.LinkFollower;
import org.apache.isis.viewer.json.viewer.representations.RendererFactory;
import org.apache.isis.viewer.json.viewer.representations.RendererFactoryRegistry;
import org.apache.isis.viewer.json.viewer.representations.ReprRenderer;
import org.apache.isis.viewer.json.viewer.representations.ReprRendererAbstract;
import org.apache.isis.viewer.json.viewer.representations.ReprRendererFactoryAbstract;
public class ListReprRenderer extends ReprRendererAbstract<ListReprRenderer, Collection<ObjectAdapter>> {
public static class Factory extends ReprRendererFactoryAbstract {
public Factory() {
super(RepresentationType.LIST);
}
@Override
public ReprRenderer<?, ?> newRenderer(final ResourceContext resourceContext, final LinkFollower linkFollower, final JsonRepresentation representation) {
return new ListReprRenderer(resourceContext, linkFollower, getRepresentationType(), representation);
}
}
private ObjectAdapterLinkTo linkTo;
private Collection<ObjectAdapter> objectAdapters;
private ObjectSpecification elementType;
private ObjectSpecification returnType;
private ListReprRenderer(final ResourceContext resourceContext, final LinkFollower linkFollower, final RepresentationType representationType, final JsonRepresentation representation) {
super(resourceContext, linkFollower, representationType, representation);
usingLinkToBuilder(new DomainObjectLinkTo());
}
public ListReprRenderer usingLinkToBuilder(final ObjectAdapterLinkTo objectAdapterLinkToBuilder) {
this.linkTo = objectAdapterLinkToBuilder.usingResourceContext(resourceContext);
return this;
}
@Override
public ListReprRenderer with(final Collection<ObjectAdapter> objectAdapters) {
this.objectAdapters = objectAdapters;
return this;
}
public ListReprRenderer withReturnType(final ObjectSpecification returnType) {
this.returnType = returnType;
return this;
}
public ListReprRenderer withElementType(final ObjectSpecification elementType) {
this.elementType = elementType;
return this;
}
@Override
public JsonRepresentation render() {
addValue();
addLink(Rel.RETURN_TYPE, returnType);
addLink(Rel.ELEMENT_TYPE, elementType);
getExtensions();
return representation;
}
private void addValue() {
if (objectAdapters == null) {
return;
}
final JsonRepresentation values = JsonRepresentation.newArray();
final LinkFollower linkFollower = getLinkFollower().follow("value");
for (final ObjectAdapter adapter : objectAdapters) {
final JsonRepresentation linkToObject = linkTo.with(adapter).builder().build();
values.arrayAdd(linkToObject);
if (linkFollower.matches(linkToObject)) {
final RendererFactory factory = RendererFactoryRegistry.instance.find(RepresentationType.DOMAIN_OBJECT);
final DomainObjectReprRenderer renderer = (DomainObjectReprRenderer) factory.newRenderer(getResourceContext(), linkFollower, JsonRepresentation.newMap());
final JsonRepresentation domainObject = renderer.with(adapter).render();
linkToObject.mapPut("value", domainObject);
}
}
representation.mapPut("value", values);
}
}