/*
* 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.runtime.services.homepage;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.isis.applib.annotation.DomainService;
import org.apache.isis.applib.annotation.NatureOfService;
import org.apache.isis.applib.annotation.Programmatic;
import org.apache.isis.applib.annotation.Where;
import org.apache.isis.applib.services.homepage.HomePageProviderService;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.consent.Consent;
import org.apache.isis.core.metamodel.consent.InteractionInitiatedBy;
import org.apache.isis.core.metamodel.facets.actions.homepage.HomePageFacet;
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.ObjectAction;
import org.apache.isis.core.runtime.system.persistence.PersistenceSession;
import org.apache.isis.core.runtime.system.session.IsisSessionFactory;
@DomainService(
nature = NatureOfService.DOMAIN,
menuOrder = "" + Integer.MAX_VALUE
)
public class HomePageProviderServiceDefault implements HomePageProviderService {
@SuppressWarnings("unused")
private final static Logger LOG = LoggerFactory.getLogger(HomePageProviderServiceDefault.class);
@Programmatic
@Override
public Object homePage() {
final List<ObjectAdapter> serviceAdapters = getPersistenceSession().getServices();
for (final ObjectAdapter serviceAdapter : serviceAdapters) {
final ObjectSpecification serviceSpec = serviceAdapter.getSpecification();
final List<ObjectAction> objectActions = serviceSpec.getObjectActions(Contributed.EXCLUDED);
for (final ObjectAction objectAction : objectActions) {
final Object homePage = homePageIfUsable(serviceAdapter, objectAction);
if(homePage != null) {
return homePage;
}
}
}
return null;
}
protected Object homePageIfUsable(ObjectAdapter serviceAdapter, ObjectAction objectAction) {
if (!objectAction.containsDoOpFacet(HomePageFacet.class)) {
return null;
}
final Consent visibility =
objectAction.isVisible(
serviceAdapter,
InteractionInitiatedBy.USER,
Where.ANYWHERE);
if (visibility.isVetoed()) {
return null;
}
final Consent usability =
objectAction.isUsable(
serviceAdapter,
InteractionInitiatedBy.USER,
Where.ANYWHERE
);
if (usability.isVetoed()) {
return null;
}
final ObjectAdapter mixedInAdapter = null;
final ObjectAdapter[] parameters = {};
final ObjectAdapter objectAdapter = objectAction.executeWithRuleChecking(
serviceAdapter, mixedInAdapter, parameters,
InteractionInitiatedBy.USER,
WHERE_FOR_ACTION_INVOCATION);
return objectAdapter != null ? objectAdapter.getObject(): null;
}
// REVIEW: should provide this rendering context, rather than hardcoding.
// the net effect currently is that class members annotated with
// @Hidden(where=Where.ANYWHERE) or @Disabled(where=Where.ANYWHERE) will indeed
// be hidden/disabled, but will be visible/enabled (perhaps incorrectly)
// for any other value for Where
protected static final Where WHERE_FOR_ACTION_INVOCATION = Where.ANYWHERE;
@javax.inject.Inject
IsisSessionFactory isisSessionFactory;
protected PersistenceSession getPersistenceSession() {
return isisSessionFactory.getCurrentSession().getPersistenceSession();
}
}