org.isisaddons.app.kitchensink.dom.contrib.contributed.PreferenceContributions.java Source code

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Here is the source code for org.isisaddons.app.kitchensink.dom.contrib.contributed.PreferenceContributions.java

Source

/*
 *  Copyright 2014 Dan Haywood
 *
 *  Licensed 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.isisaddons.app.kitchensink.dom.contrib.contributed;

import java.util.List;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import org.isisaddons.app.kitchensink.dom.contrib.contributee.FoodStuff;
import org.isisaddons.app.kitchensink.dom.contrib.contributee.Person;
import org.apache.isis.applib.annotation.Action;
import org.apache.isis.applib.annotation.ActionLayout;
import org.apache.isis.applib.annotation.Contributed;
import org.apache.isis.applib.annotation.DomainService;
import org.apache.isis.applib.annotation.DomainServiceLayout;
import org.apache.isis.applib.annotation.NatureOfService;
import org.apache.isis.applib.annotation.ParameterLayout;
import org.apache.isis.applib.annotation.SemanticsOf;

@DomainService(nature = NatureOfService.VIEW_CONTRIBUTIONS_ONLY)
@DomainServiceLayout(menuOrder = "10.1")
public class PreferenceContributions {

    //region > likes (contributed collection to Person)
    @Action(semantics = SemanticsOf.SAFE)
    @ActionLayout(contributed = Contributed.AS_ASSOCIATION)
    public List<FoodStuff> likes(final Person person) {
        return Lists.newArrayList(Iterables.transform(
                Iterables.filter(preferences.listAllPreferences(), Preference.Predicates.preferenceOf(person)),
                Preference.Functions.food()));
    }
    //endregion

    //region > firstLove (contributed property to Person)
    @Action(semantics = SemanticsOf.SAFE)
    @ActionLayout(contributed = Contributed.AS_ASSOCIATION)
    public FoodStuff firstLove(final Person person) {
        final List<FoodStuff> loves = Lists
                .newArrayList(
                        Iterables
                                .transform(
                                        Iterables.filter(preferences.listAllPreferences(),
                                                Preference.Predicates.preferenceOf(person,
                                                        Preference.PreferenceType.LIKE)),
                                        Preference.Functions.food()));
        return loves.isEmpty() ? null : loves.get(0);
    }
    //endregion

    //region > addPreference (contributed action to Person and FoodStuff) 
    public Preference addPreference(final Person person,
            final @ParameterLayout(named = "Type") Preference.PreferenceType preferenceType,
            final FoodStuff foodStuff) {
        removePreference(person, foodStuff);
        return preferences.createPreference(person, preferenceType, foodStuff);
    }
    //endregion

    //region > removePreference (contributed action to Person and FoodStuff)
    /**
     * Will be contributed as an action to both parameters.  However, the FoodStuff.layout.json hides the action so it
     * in the UI it appears to be only contributed to the Person entity.
     */
    public Person removePreference(final Person person, final FoodStuff foodStuff) {
        final List<Preference> preferences1 = preferences.listAllPreferences();
        for (final Preference preference : preferences1) {
            if (preference.getPerson() == person && preference.getFoodStuff() == foodStuff) {
                preferences.deletePreference(preference);
            }
        }
        return person;
    }
    //endregion

    //region > injected services
    @javax.inject.Inject
    protected Preferences preferences;
    //endregion

}