/*
* 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.facets.object.domainobjectlayout;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.isis.applib.NonRecoverableException;
import org.apache.isis.applib.annotation.DomainObjectLayout;
import org.apache.isis.applib.services.eventbus.EventBusService;
import org.apache.isis.applib.services.eventbus.TitleUiEvent;
import org.apache.isis.applib.services.i18n.TranslatableString;
import org.apache.isis.applib.services.i18n.TranslationService;
import org.apache.isis.core.commons.config.IsisConfiguration;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.facetapi.Facet;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facets.object.title.TitleFacetAbstract;
import org.apache.isis.core.metamodel.services.ServicesInjector;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.util.EventUtil;
public class TitleFacetViaDomainObjectLayoutAnnotationUsingTitleUiEvent extends TitleFacetAbstract {
private static final Logger LOG = LoggerFactory.getLogger(TitleFacetViaDomainObjectLayoutAnnotationUsingTitleUiEvent.class);
public static Facet create(
final DomainObjectLayout domainObjectLayout,
final ServicesInjector servicesInjector,
final IsisConfiguration configuration, final FacetHolder facetHolder) {
if(domainObjectLayout == null) {
return null;
}
final Class<? extends TitleUiEvent<?>> titleUiEventClass = domainObjectLayout.titleUiEvent();
if(!EventUtil.eventTypeIsPostable(
titleUiEventClass,
TitleUiEvent.Noop.class,
TitleUiEvent.Default.class,
"isis.reflector.facet.domainObjectLayoutAnnotation.titleUiEvent.postForDefault",
configuration)) {
return null;
}
final TranslationService translationService = servicesInjector.lookupService(TranslationService.class);
final ObjectSpecification facetHolderAsSpec = (ObjectSpecification) facetHolder; // bit naughty...
final String translationContext = facetHolderAsSpec.getCorrespondingClass().getCanonicalName();
final EventBusService eventBusService = servicesInjector.lookupService(EventBusService.class);
return new TitleFacetViaDomainObjectLayoutAnnotationUsingTitleUiEvent(
titleUiEventClass, translationService, translationContext, eventBusService, facetHolder);
}
private final Class<? extends TitleUiEvent<?>> titleUiEventClass;
private final TranslationService translationService;
private final String translationContext;
private final EventBusService eventBusService;
public TitleFacetViaDomainObjectLayoutAnnotationUsingTitleUiEvent(
final Class<? extends TitleUiEvent<?>> titleUiEventClass,
final TranslationService translationService,
final String translationContext,
final EventBusService eventBusService,
final FacetHolder holder) {
super(holder);
this.titleUiEventClass = titleUiEventClass;
this.translationService = translationService;
this.translationContext = translationContext;
this.eventBusService = eventBusService;
}
@Override
public String title(final ObjectAdapter owningAdapter) {
final TitleUiEvent<Object> titleUiEvent = newTitleUiEvent(owningAdapter);
eventBusService.post(titleUiEvent);
final TranslatableString translatedTitle = titleUiEvent.getTranslatableTitle();
if(translatedTitle != null) {
return translatedTitle.translate(translationService, translationContext);
}
final String title = titleUiEvent.getTitle();
return title; // could be null
}
private TitleUiEvent<Object> newTitleUiEvent(final ObjectAdapter owningAdapter) {
final Object domainObject = owningAdapter.getObject();
return newTitleUiEvent(domainObject);
}
private TitleUiEvent<Object> newTitleUiEvent(final Object domainObject) {
try {
final TitleUiEvent<Object> titleUiEvent = (TitleUiEvent<Object>) titleUiEventClass.newInstance();
titleUiEvent.setSource(domainObject);
return titleUiEvent;
} catch (InstantiationException | IllegalAccessException ex) {
throw new NonRecoverableException(ex);
}
}
}