001// --------------------------------------------------------------------------------
002// Copyright 2002-2026 Echo Three, LLC
003//
004// Licensed under the Apache License, Version 2.0 (the "License");
005// you may not use this file except in compliance with the License.
006// You may obtain a copy of the License at
007//
008//     http://www.apache.org/licenses/LICENSE-2.0
009//
010// Unless required by applicable law or agreed to in writing, software
011// distributed under the License is distributed on an "AS IS" BASIS,
012// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013// See the License for the specific language governing permissions and
014// limitations under the License.
015// --------------------------------------------------------------------------------
016
017package com.echothree.model.control.core.server.graphql;
018
019import com.echothree.model.control.graphql.server.util.BaseGraphQl;
020import com.echothree.model.data.core.server.entity.Link;
021import graphql.annotations.annotationTypes.GraphQLDescription;
022import graphql.annotations.annotationTypes.GraphQLField;
023import graphql.annotations.annotationTypes.GraphQLName;
024import graphql.schema.DataFetchingEnvironment;
025
026@GraphQLDescription("link object")
027@GraphQLName("Link")
028public class LinkObject
029        implements BaseGraphQl {
030
031    private final Link link;
032
033    public LinkObject(Link link) {
034        this.link = link;
035    }
036
037    @GraphQLField
038    @GraphQLDescription("link type")
039    public LinkTypeObject getLinkType(final DataFetchingEnvironment env) {
040        return CoreSecurityUtils.getHasLinkTypeAccess(env) ? new LinkTypeObject(link.getLinkType()) : null;
041    }
042
043    @GraphQLField
044    @GraphQLDescription("source entity instance")
045    public EntityInstanceObject getSourceEntityInstance(final DataFetchingEnvironment env) {
046        return CoreSecurityUtils.getHasEntityInstanceAccess(env) ? new EntityInstanceObject(link.getSourceEntityInstance()) : null;
047    }
048
049    @GraphQLField
050    @GraphQLDescription("target entity instance")
051    public EntityInstanceObject getTargetEntityInstance(final DataFetchingEnvironment env) {
052        return CoreSecurityUtils.getHasEntityInstanceAccess(env) ? new EntityInstanceObject(link.getTargetEntityInstance()) : null;
053    }
054
055}