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.control.user.message.server.command;
018
019import com.echothree.control.user.message.common.form.GetMessageForm;
020import com.echothree.control.user.message.common.result.MessageResultFactory;
021import com.echothree.model.control.core.common.EventTypes;
022import com.echothree.model.control.message.server.control.MessageControl;
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.Arrays;
031import java.util.Collections;
032import java.util.List;
033import javax.enterprise.context.RequestScoped;
034
035@RequestScoped
036public class GetMessageCommand
037        extends BaseSimpleCommand<GetMessageForm> {
038    
039    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
040    
041    static {
042        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
043            new FieldDefinition("ComponentVendorName", FieldType.ENTITY_NAME, true, null, null),
044            new FieldDefinition("EntityTypeName", FieldType.ENTITY_TYPE_NAME, true, null, null),
045            new FieldDefinition("MessageTypeName", FieldType.ENTITY_NAME, true, null, null),
046            new FieldDefinition("MessageName", FieldType.ENTITY_NAME, true, null, null)
047        ));
048    }
049    
050    /** Creates a new instance of GetMessageCommand */
051    public GetMessageCommand() {
052        super(null, FORM_FIELD_DEFINITIONS, true);
053    }
054    
055    @Override
056    protected BaseResult execute() {
057        var result = MessageResultFactory.getGetMessageResult();
058        var componentVendorName = form.getComponentVendorName();
059        var componentVendor = componentControl.getComponentVendorByName(componentVendorName);
060        
061        if(componentVendor != null) {
062            var userVisit = getUserVisit();
063            var entityTypeName = form.getEntityTypeName();
064            var entityType = entityTypeControl.getEntityTypeByName(componentVendor, entityTypeName);
065            
066            result.setComponentVendor(componentControl.getComponentVendorTransfer(userVisit, componentVendor));
067            
068            if(entityType != null) {
069                var messageControl = Session.getModelController(MessageControl.class);
070                var messageTypeName = form.getMessageTypeName();
071                var messageType = messageControl.getMessageTypeByName(entityType, messageTypeName);
072                
073                result.setEntityType(entityTypeControl.getEntityTypeTransfer(userVisit, entityType));
074                
075                if(messageType != null) {
076                    var messageName = form.getMessageName();
077                    var message = messageControl.getMessageByName(messageType, messageName);
078                    
079                    result.setMessageType(messageControl.getMessageTypeTransfer(userVisit, messageType));
080                    
081                    if(message != null) {
082                        result.setMessage(messageControl.getMessageTransfer(userVisit, message));
083                        
084                        sendEvent(messageType.getPrimaryKey(), EventTypes.READ, null, null, getPartyPK());
085                    } else {
086                        addExecutionError(ExecutionErrors.UnknownMessageName.name(), messageName);
087                    }
088                } else {
089                    addExecutionError(ExecutionErrors.UnknownMessageTypeName.name(), messageTypeName);
090                }
091            } else {
092                addExecutionError(ExecutionErrors.UnknownEntityTypeName.name(), entityTypeName);
093            }
094        } else {
095            addExecutionError(ExecutionErrors.UnknownComponentVendorName.name(), componentVendorName);
096        }
097        
098        return result;
099    }
100    
101}