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.uom.server.logic;
018
019import com.echothree.model.control.core.common.ComponentVendors;
020import com.echothree.model.control.core.common.EntityTypes;
021import com.echothree.model.control.core.server.logic.EntityInstanceLogic;
022import com.echothree.model.control.uom.common.exception.UnknownUnitOfMeasureKindNameException;
023import com.echothree.model.control.uom.server.control.UomControl;
024import com.echothree.model.data.core.server.entity.EntityInstance;
025import com.echothree.model.data.uom.server.entity.UnitOfMeasureKind;
026import com.echothree.util.common.message.ExecutionErrors;
027import com.echothree.util.common.persistence.BasePK;
028import com.echothree.util.server.control.BaseLogic;
029import com.echothree.util.server.message.ExecutionErrorAccumulator;
030import com.echothree.util.server.persistence.EntityPermission;
031import com.echothree.util.server.persistence.Session;
032
033public class UnitOfMeasureKindLogic
034    extends BaseLogic {
035    
036    private UnitOfMeasureKindLogic() {
037        super();
038    }
039    
040    private static class UnitOfMeasureKindLogicHolder {
041        static UnitOfMeasureKindLogic instance = new UnitOfMeasureKindLogic();
042    }
043    
044    public static UnitOfMeasureKindLogic getInstance() {
045        return UnitOfMeasureKindLogicHolder.instance;
046    }
047
048    public UnitOfMeasureKind getUnitOfMeasureKindByName(final ExecutionErrorAccumulator eea, final String unitOfMeasureKindName) {
049        var uomControl = Session.getModelController(UomControl.class);
050        UnitOfMeasureKind unitOfMeasureKind = uomControl.getUnitOfMeasureKindByName(unitOfMeasureKindName);
051
052        if(unitOfMeasureKind == null) {
053            handleExecutionError(UnknownUnitOfMeasureKindNameException.class, eea, ExecutionErrors.UnknownUnitOfMeasureKindName.name(), unitOfMeasureKindName);
054        }
055
056        return unitOfMeasureKind;
057    }
058
059    public UnitOfMeasureKind getUnitOfMeasureKindByUlid(final ExecutionErrorAccumulator eea, final String ulid, final EntityPermission entityPermission) {
060        UnitOfMeasureKind unitOfMeasureKind = null;
061        
062        var entityInstance = EntityInstanceLogic.getInstance().getEntityInstance(eea, (String)null, null, null, ulid,
063                ComponentVendors.ECHO_THREE.name(), EntityTypes.UnitOfMeasureKind.name());
064
065        if(eea == null || !eea.hasExecutionErrors()) {
066            var uomControl = Session.getModelController(UomControl.class);
067            
068            unitOfMeasureKind = uomControl.getUnitOfMeasureKindByEntityInstance(entityInstance, entityPermission);
069        }
070
071        return unitOfMeasureKind;
072    }
073    
074    public UnitOfMeasureKind getUnitOfMeasureKindByUlid(final ExecutionErrorAccumulator eea, final String ulid) {
075        return getUnitOfMeasureKindByUlid(eea, ulid, EntityPermission.READ_ONLY);
076    }
077    
078    public UnitOfMeasureKind getUnitOfMeasureKindByUlidForUpdate(final ExecutionErrorAccumulator eea, final String ulid) {
079        return getUnitOfMeasureKindByUlid(eea, ulid, EntityPermission.READ_WRITE);
080    }
081    
082    public void checkDeleteUnitOfMeasureKind(final ExecutionErrorAccumulator ema, final UnitOfMeasureKind unitOfMeasureKind) {
083        var uomControl = Session.getModelController(UomControl.class);
084        
085        if(uomControl.countUnitOfMeasureKindUsesByUnitOfMeasureKind(unitOfMeasureKind) != 0) {
086            ema.addExecutionError(ExecutionErrors.CannotDeleteUnitOfMeasureKindInUse.name(), unitOfMeasureKind.getLastDetail().getUnitOfMeasureKindName());
087        }
088    }
089
090    public void deleteUnitOfMeasureKind(final UnitOfMeasureKind unitOfMeasureKind, final BasePK deletedBy) {
091        var uomControl = Session.getModelController(UomControl.class);
092
093        uomControl.deleteUnitOfMeasureKind(unitOfMeasureKind, deletedBy);
094    }
095
096}