/**
* 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.restfulobjects.rendering.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.restfulobjects.applib.JsonRepresentation;
import org.apache.isis.viewer.restfulobjects.applib.Rel;
import org.apache.isis.viewer.restfulobjects.applib.RepresentationType;
import org.apache.isis.viewer.restfulobjects.rendering.LinkFollowSpecs;
import org.apache.isis.viewer.restfulobjects.rendering.RendererContext;
import org.apache.isis.viewer.restfulobjects.rendering.ReprRendererAbstract;
public class ListReprRenderer extends ReprRendererAbstract<ListReprRenderer, Collection<ObjectAdapter>> {
private ObjectAdapterLinkTo linkTo;
private Collection<ObjectAdapter> objectAdapters;
private ObjectSpecification elementType;
private ObjectSpecification returnType;
private Rel elementRel;
public ListReprRenderer(final RendererContext resourceContext, final LinkFollowSpecs linkFollower, final JsonRepresentation representation) {
super(resourceContext, linkFollower, RepresentationType.LIST, representation);
usingLinkToBuilder(new DomainObjectLinkTo());
}
public ListReprRenderer usingLinkToBuilder(final ObjectAdapterLinkTo objectAdapterLinkToBuilder) {
this.linkTo = objectAdapterLinkToBuilder.usingUrlBase(rendererContext);
return this;
}
@Override
public ListReprRenderer with(final Collection<ObjectAdapter> objectAdapters) {
this.objectAdapters = objectAdapters;
return this;
}
public ListReprRenderer withElementRel(Rel elementRel) {
this.elementRel = elementRel;
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() {
if(representation == null) {
return null;
}
addValue();
addLinkToReturnType();
addLinkToElementType();
getExtensions();
return representation;
}
private void addValue() {
if (objectAdapters == null) {
return;
}
final JsonRepresentation values = JsonRepresentation.newArray();
for (final ObjectAdapter adapter : objectAdapters) {
final ObjectSpecification specification = adapter.getSpecification();
if (specification.isHidden()) {
continue;
}
final JsonRepresentation linkToObject = linkTo.with(adapter).builder(elementRel).build();
values.arrayAdd(linkToObject);
final LinkFollowSpecs linkFollower = getLinkFollowSpecs().follow("value");
if (linkFollower.matches(linkToObject)) {
final DomainObjectReprRenderer renderer = new DomainObjectReprRenderer(getRendererContext(), linkFollower, JsonRepresentation.newMap()
);
final JsonRepresentation domainObject = renderer.with(adapter).render();
linkToObject.mapPut("value", domainObject);
}
}
representation.mapPut("value", values);
}
protected void addLinkToReturnType() {
addLink(Rel.RETURN_TYPE, returnType);
}
protected void addLinkToElementType() {
addLink(Rel.ELEMENT_TYPE, elementType);
}
}