001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.progmodel.facets.object.defaults;
021
022import org.apache.isis.applib.adapters.DefaultsProvider;
023import org.apache.isis.core.metamodel.facetapi.FacetAbstract;
024import org.apache.isis.core.metamodel.facetapi.FacetHolder;
025import org.apache.isis.core.metamodel.runtimecontext.ServicesInjector;
026
027public class DefaultedFacetUsingDefaultsProvider extends FacetAbstract implements DefaultedFacet {
028
029    private final DefaultsProvider<?> defaultsProvider;
030    private final ServicesInjector dependencyInjector;
031
032    public DefaultedFacetUsingDefaultsProvider(final DefaultsProvider<?> parser, final FacetHolder holder, final ServicesInjector dependencyInjector) {
033        super(DefaultedFacet.class, holder, Derivation.NOT_DERIVED);
034        this.defaultsProvider = parser;
035        this.dependencyInjector = dependencyInjector;
036    }
037
038    @Override
039    protected String toStringValues() {
040        getDependencyInjector().injectServicesInto(defaultsProvider);
041        return defaultsProvider.toString();
042    }
043
044    @Override
045    public Object getDefault() {
046        getDependencyInjector().injectServicesInto(defaultsProvider);
047        return defaultsProvider.getDefaultValue();
048    }
049
050    // //////////////////////////////////////////////////////
051    // Dependencies (from constructor)
052    // //////////////////////////////////////////////////////
053
054    public ServicesInjector getDependencyInjector() {
055        return dependencyInjector;
056    }
057
058}