001// --------------------------------------------------------------------------------
002// Copyright 2002-2024 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.EntityAttributeTransfer;
020import com.echothree.model.control.core.common.transfer.EntityEntityAttributeTransfer;
021import com.echothree.model.control.core.common.transfer.EntityInstanceTransfer;
022import com.echothree.model.control.core.server.control.CoreControl;
023import com.echothree.model.data.core.server.entity.EntityEntityAttribute;
024import com.echothree.model.data.core.server.entity.EntityInstance;
025import com.echothree.model.data.user.server.entity.UserVisit;
026import com.echothree.util.server.persistence.Session;
027
028public class EntityEntityAttributeTransferCache
029        extends BaseCoreTransferCache<EntityEntityAttribute, EntityEntityAttributeTransfer> {
030
031    CoreControl coreControl = Session.getModelController(CoreControl.class);
032
033    /** Creates a new instance of EntityEntityAttributeTransferCache */
034    public EntityEntityAttributeTransferCache(UserVisit userVisit) {
035        super(userVisit);
036    }
037    
038    public EntityEntityAttributeTransfer getEntityEntityAttributeTransfer(EntityEntityAttribute entityEntityAttribute, EntityInstance entityInstance) {
039        EntityEntityAttributeTransfer entityEntityAttributeTransfer = get(entityEntityAttribute);
040        
041        if(entityEntityAttributeTransfer == null) {
042            EntityAttributeTransfer entityAttribute = entityInstance == null ? coreControl.getEntityAttributeTransfer(userVisit, entityEntityAttribute.getEntityAttribute(), entityInstance) : null;
043            EntityInstanceTransfer entityInstanceTransfer = coreControl.getEntityInstanceTransfer(userVisit, entityEntityAttribute.getEntityInstance(), false, false, false, false, false, false);
044            EntityInstanceTransfer entityInstanceAttribute = coreControl.getEntityInstanceTransfer(userVisit, entityEntityAttribute.getEntityInstanceAttribute(), false, false, false, false, false, false);
045            
046            entityEntityAttributeTransfer = new EntityEntityAttributeTransfer(entityAttribute, entityInstanceTransfer, entityInstanceAttribute);
047            put(entityEntityAttribute, entityEntityAttributeTransfer);
048        }
049        
050        return entityEntityAttributeTransfer;
051    }
052    
053}