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.control.user.core.server.command;
018
019import com.echothree.control.user.core.common.form.GetEntityClobAttributeForm;
020import com.echothree.control.user.core.common.result.CoreResultFactory;
021import com.echothree.model.control.core.server.control.EntityInstanceControl;
022import com.echothree.model.control.party.server.control.PartyControl;
023import com.echothree.model.data.user.common.pk.UserVisitPK;
024import com.echothree.util.common.command.BaseResult;
025import com.echothree.util.common.message.ExecutionErrors;
026import com.echothree.util.common.validation.FieldDefinition;
027import com.echothree.util.common.validation.FieldType;
028import com.echothree.util.server.control.BaseSimpleCommand;
029import com.echothree.util.server.persistence.Session;
030import java.util.List;
031import javax.enterprise.context.Dependent;
032
033@Dependent
034public class GetEntityClobAttributeCommand
035        extends BaseSimpleCommand<GetEntityClobAttributeForm> {
036    
037    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
038    
039    static {
040        FORM_FIELD_DEFINITIONS = List.of(
041                new FieldDefinition("EntityRef", FieldType.ENTITY_REF, true, null, null),
042                new FieldDefinition("EntityAttributeName", FieldType.ENTITY_NAME, true, null, null),
043                new FieldDefinition("LanguageIsoName", FieldType.ENTITY_NAME, false, null, null)
044                );
045    }
046    
047    /** Creates a new instance of GetEntityClobAttributeCommand */
048    public GetEntityClobAttributeCommand() {
049        super(null, FORM_FIELD_DEFINITIONS, false);
050    }
051    
052    @Override
053    protected BaseResult execute() {
054        var entityInstanceControl = Session.getModelController(EntityInstanceControl.class);
055        var result = CoreResultFactory.getGetEntityClobAttributeResult();
056        var entityRef = form.getEntityRef();
057        var entityInstance = entityInstanceControl.getEntityInstanceByEntityRef(entityRef);
058        
059        if(entityInstance != null) {
060            var entityAttributeName = form.getEntityAttributeName();
061            var entityAttribute = coreControl.getEntityAttributeByName(entityInstance.getEntityType(), entityAttributeName);
062            
063            if(entityAttribute != null) {
064                var partyControl = Session.getModelController(PartyControl.class);
065                var languageIsoName = form.getLanguageIsoName();
066                var language = languageIsoName == null ? null : partyControl.getLanguageByIsoName(languageIsoName);
067                
068                if(language != null) {
069                    var entityClobAttribute = language == null ? coreControl.getBestEntityClobAttribute(entityAttribute, entityInstance, getPreferredLanguage())
070                            : coreControl.getEntityClobAttribute(entityAttribute, entityInstance, language);
071                    
072                    if(entityClobAttribute != null) {
073                        result.setEntityClobAttribute(coreControl.getEntityClobAttributeTransfer(getUserVisit(), entityClobAttribute, entityInstance));
074                    } else {
075                        var entityTypeDetail = entityInstance.getEntityType().getLastDetail();
076
077                        addExecutionError(ExecutionErrors.UnknownEntityClobAttribute.name(), entityRef,
078                                entityTypeDetail.getComponentVendor().getLastDetail().getComponentVendorName(),
079                                entityTypeDetail.getEntityTypeName(), entityAttributeName, languageIsoName);
080                    }
081                } else {
082                    addExecutionError(ExecutionErrors.UnknownLanguageIsoName.name(), languageIsoName);
083                }
084            } else {
085                var entityTypeDetail = entityInstance.getEntityType().getLastDetail();
086                
087                addExecutionError(ExecutionErrors.UnknownEntityAttributeName.name(), entityTypeDetail.getComponentVendor().getLastDetail().getComponentVendorName(),
088                        entityTypeDetail.getEntityTypeName(), entityAttributeName);
089            }
090        } else {
091            addExecutionError(ExecutionErrors.UnknownEntityRef.name(), entityRef);
092        }
093        
094        return result;
095    }
096    
097}