/**
* 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.specloader.specimpl;
import java.util.List;
import org.apache.isis.applib.Identifier;
import org.apache.isis.applib.annotation.When;
import org.apache.isis.applib.annotation.Where;
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.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facetapi.FacetHolderImpl;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facets.actcoll.typeof.TypeOfFacet;
import org.apache.isis.core.metamodel.facets.actcoll.typeof.TypeOfFacetAbstract;
import org.apache.isis.core.metamodel.facets.members.disabled.DisabledFacet;
import org.apache.isis.core.metamodel.facets.members.disabled.DisabledFacetForContributee;
import org.apache.isis.core.metamodel.facets.propcoll.notpersisted.NotPersistedFacet;
import org.apache.isis.core.metamodel.facets.propcoll.notpersisted.NotPersistedFacetAbstract;
import org.apache.isis.core.metamodel.interactions.InteractionUtils;
import org.apache.isis.core.metamodel.interactions.UsabilityContext;
import org.apache.isis.core.metamodel.interactions.VisibilityContext;
import org.apache.isis.core.metamodel.services.ServicesInjector;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.feature.ObjectAction;
import org.apache.isis.core.metamodel.specloader.SpecificationLoader;
public class OneToManyAssociationContributee extends OneToManyAssociationDefault implements ContributeeMember2 {
private final Object servicePojo;
private final ObjectAction serviceAction;
/**
* Hold facets rather than delegate to the contributed action (different types might
* use layout metadata to position the contributee in different ways)
*/
private final FacetHolder facetHolder = new FacetHolderImpl();
private final Identifier identifier;
private static ObjectSpecification typeOfSpec(
final ObjectActionDefault objectAction,
final ServicesInjector objectMemberDependencies) {
final TypeOfFacet actionTypeOfFacet = objectAction.getFacet(TypeOfFacet.class);
final SpecificationLoader specificationLookup = objectMemberDependencies.getSpecificationLoader();
// TODO: a bit of a hack; ought really to set up a fallback TypeOfFacetDefault which ensures that there is always
// a TypeOfFacet for any contributee associations created from contributed actions.
Class<? extends Object> cls = actionTypeOfFacet != null? actionTypeOfFacet.value(): Object.class;
return specificationLookup.loadSpecification(cls);
}
public OneToManyAssociationContributee(
final Object servicePojo,
final ObjectActionDefault serviceAction,
final ObjectSpecification contributeeType,
final ServicesInjector servicesInjector) {
super(serviceAction.getFacetedMethod(),
typeOfSpec(serviceAction, servicesInjector),
servicesInjector);
this.servicePojo = servicePojo;
this.serviceAction = serviceAction;
//
// ensure the contributed collection cannot be modified, and derive its TypeOfFaccet
//
final NotPersistedFacet notPersistedFacet = new NotPersistedFacetAbstract(this) {};
final DisabledFacet disabledFacet = disabledFacet();
final TypeOfFacet typeOfFacet = new TypeOfFacetAbstract(getSpecification().getCorrespondingClass(), this, servicesInjector.getSpecificationLoader()) {};
FacetUtil.addFacet(notPersistedFacet);
FacetUtil.addFacet(disabledFacet);
FacetUtil.addFacet(typeOfFacet);
//
// in addition, copy over facets from contributed to own.
//
// These could include everything under @Collection(...) because the
// CollectionAnnotationFacetFactory is also run against actions.
//
FacetUtil.copyFacets(serviceAction.getFacetedMethod(), facetHolder);
// calculate the identifier
final Identifier contributorIdentifier = serviceAction.getFacetedMethod().getIdentifier();
final String memberName = contributorIdentifier.getMemberName();
List<String> memberParameterNames = contributorIdentifier.getMemberParameterNames();
identifier = Identifier.actionIdentifier(contributeeType.getCorrespondingClass().getName(), memberName, memberParameterNames);
}
private DisabledFacet disabledFacet() {
final DisabledFacet originalFacet = facetHolder.getFacet(DisabledFacet.class);
if( originalFacet != null &&
originalFacet.when() == When.ALWAYS &&
originalFacet.where() == Where.ANYWHERE) {
return originalFacet;
}
// ensure that the contributed association is always disabled
return new DisabledFacetForContributee("Contributed collection", this);
}
@Override
public ObjectAdapter get(final ObjectAdapter ownerAdapter, final InteractionInitiatedBy interactionInitiatedBy) {
return serviceAction.execute(getServiceAdapter(), null, new ObjectAdapter[]{ownerAdapter}, interactionInitiatedBy);
}
@Override
public Identifier getIdentifier() {
return identifier;
}
@Override
public boolean isContributedBy(final ObjectAction serviceAction) {
return serviceAction == this.serviceAction;
}
@Override
public int getContributeeParamPosition() {
// always 0 for contributed collections
return 0;
}
@Override
public Consent isVisible(
final ObjectAdapter contributee,
final InteractionInitiatedBy interactionInitiatedBy,
Where where) {
final VisibilityContext<?> ic = ((ObjectMemberAbstract)serviceAction).createVisibleInteractionContext(
getServiceAdapter(), interactionInitiatedBy, where);
ic.putContributee(0, contributee); // by definition, the contributee will be the first arg of the service action
return InteractionUtils.isVisibleResult(this, ic).createConsent();
}
@Override
public Consent isUsable(
final ObjectAdapter contributee,
final InteractionInitiatedBy interactionInitiatedBy, final Where where) {
final ObjectMemberAbstract serviceAction = (ObjectMemberAbstract) this.serviceAction;
final UsabilityContext<?> ic = serviceAction.createUsableInteractionContext(
getServiceAdapter(), interactionInitiatedBy, where);
ic.putContributee(0, contributee); // by definition, the contributee will be the first arg of the service action
return InteractionUtils.isUsableResult(this, ic).createConsent();
}
//region > FacetHolder
@Override
protected FacetHolder getFacetHolder() {
return facetHolder;
}
//endregion
private ObjectAdapter getServiceAdapter() {
return getPersistenceSessionService().adapterFor(servicePojo);
}
//region > ContributeeMember2 impl (getServiceContributedBy)
@Override
public ObjectSpecification getServiceContributedBy() {
return getServiceAdapter().getSpecification();
}
//endregion
}