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 */
019package org.apache.isis.viewer.restfulobjects.applib.domainobjects;
020
021import java.util.Map;
022import com.google.common.base.Predicate;
023import com.google.common.collect.Iterables;
024import org.apache.isis.viewer.restfulobjects.applib.JsonRepresentation;
025import org.apache.isis.viewer.restfulobjects.applib.LinkRepresentation;
026import org.apache.isis.viewer.restfulobjects.applib.Rel;
027import org.codehaus.jackson.JsonNode;
028
029public class DomainObjectRepresentation extends DomainRepresentation  {
030
031    public DomainObjectRepresentation(final JsonNode jsonNode) {
032        super(jsonNode);
033    }
034
035    public String getTitle() {
036        return getString("title");
037    }
038
039    /**
040     * Populated only for domain objects, not for domain services.
041     */
042    public String getDomainType() {
043        return getString("domainType");
044    }
045
046    /**
047     * Populated only for domain objects, not for domain services.
048     */
049    public String getInstanceId() {
050        return getString("instanceId");
051    }
052
053    /**
054     * Populated only for domain services, not for domain objects.
055     */
056    public String getServiceId() {
057        return getString("serviceId");
058    }
059
060    public JsonRepresentation getMembers() {
061        return getRepresentation("members");
062    }
063
064    public DomainObjectMemberRepresentation getProperty(final String id) {
065        return getMember(id, "property");
066    }
067
068    public JsonRepresentation getProperties() {
069        return getMembersOfType("property");
070    }
071
072    public DomainObjectMemberRepresentation getCollection(final String id) {
073        return getMember(id, "collection");
074    }
075
076    public JsonRepresentation getCollections() {
077        return getMembersOfType("collection");
078    }
079
080    public DomainObjectMemberRepresentation getAction(final String id) {
081        return getMember(id, "action");
082    }
083
084    public JsonRepresentation getActions() {
085        return getMembersOfType("action");
086    }
087
088    /**
089     * Only for transient, persistable, objects
090     */
091    public LinkRepresentation getPersistLink() {
092        return getLinkWithRel(Rel.PERSIST);
093    }
094
095    
096    /**
097     * Isis extension.
098     */
099    public String getOid() {
100        return getString("extensions.oid");
101    }
102
103
104
105    private DomainObjectMemberRepresentation getMember(final String id, String memberType) {
106        // TODO: would be nice to use "members.%s[memberType=...]" instead
107        JsonRepresentation jsonRepr = getRepresentation("members.%s", id);
108        if(jsonRepr == null) {
109            return null;
110        }
111        DomainObjectMemberRepresentation member = jsonRepr.as(DomainObjectMemberRepresentation.class);
112        return member.getMemberType().equals(memberType) ? member : null;
113    }
114
115    private JsonRepresentation getMembersOfType(String memberTypeOf) {
116        final JsonRepresentation members = getRepresentation("members");
117        return JsonRepresentation.newMap().mapPut(
118                Iterables.filter(members.mapIterable(), havingMemberTypeOf(memberTypeOf)));
119    }
120
121    private static Predicate<Map.Entry<String, JsonRepresentation>> havingMemberTypeOf(final String memberTypeOf) {
122        return new Predicate<Map.Entry<String, JsonRepresentation>>() {
123            @Override
124            public boolean apply(Map.Entry<String, JsonRepresentation> input) {
125                final JsonRepresentation value = input.getValue();
126                final String memberType = value.getRepresentation("memberType").asString();
127                return memberTypeOf.equals(memberType);
128            }
129        };
130    }
131
132
133}