001// --------------------------------------------------------------------------------
002// Copyright 2002-2025 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.transfer;
018
019import com.echothree.model.control.core.common.transfer.EntityEntityAttributeTransfer;
020import com.echothree.model.control.core.server.control.CoreControl;
021import com.echothree.model.control.core.server.control.EntityInstanceControl;
022import com.echothree.model.data.core.server.entity.EntityEntityAttribute;
023import com.echothree.model.data.core.server.entity.EntityInstance;
024import com.echothree.model.data.user.server.entity.UserVisit;
025import com.echothree.util.server.persistence.Session;
026import javax.enterprise.context.RequestScoped;
027
028@RequestScoped
029public class EntityEntityAttributeTransferCache
030        extends BaseCoreTransferCache<EntityEntityAttribute, EntityEntityAttributeTransfer> {
031
032    CoreControl coreControl = Session.getModelController(CoreControl.class);
033    EntityInstanceControl entityInstanceControl = Session.getModelController(EntityInstanceControl.class);
034
035    /** Creates a new instance of EntityEntityAttributeTransferCache */
036    protected EntityEntityAttributeTransferCache() {
037        super();
038    }
039    
040    public EntityEntityAttributeTransfer getEntityEntityAttributeTransfer(final UserVisit userVisit, final EntityEntityAttribute entityEntityAttribute, final EntityInstance entityInstance) {
041        var entityEntityAttributeTransfer = get(entityEntityAttribute);
042        
043        if(entityEntityAttributeTransfer == null) {
044            var entityAttribute = entityInstance == null ? coreControl.getEntityAttributeTransfer(userVisit, entityEntityAttribute.getEntityAttribute(), entityInstance) : null;
045            var entityInstanceTransfer = entityInstanceControl.getEntityInstanceTransfer(userVisit, entityEntityAttribute.getEntityInstance(), false, false, false, false);
046            var entityInstanceAttribute = entityInstanceControl.getEntityInstanceTransfer(userVisit, entityEntityAttribute.getEntityInstanceAttribute(), false, false, false, false);
047            
048            entityEntityAttributeTransfer = new EntityEntityAttributeTransfer(entityAttribute, entityInstanceTransfer, entityInstanceAttribute);
049            put(userVisit, entityEntityAttribute, entityEntityAttributeTransfer);
050        }
051        
052        return entityEntityAttributeTransfer;
053    }
054    
055}