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.forum.server.command;
018
019import com.echothree.control.user.forum.common.form.CreateForumMessageAttachmentForm;
020import com.echothree.model.control.core.common.EntityAttributeTypes;
021import com.echothree.model.control.core.server.control.MimeTypeControl;
022import com.echothree.model.control.forum.server.control.ForumControl;
023import com.echothree.model.data.forum.server.entity.ForumMessageAttachment;
024import com.echothree.model.data.user.common.pk.UserVisitPK;
025import com.echothree.util.common.command.BaseResult;
026import com.echothree.util.common.message.ExecutionErrors;
027import com.echothree.util.common.validation.FieldDefinition;
028import com.echothree.util.common.validation.FieldType;
029import com.echothree.util.server.control.BaseSimpleCommand;
030import com.echothree.util.server.persistence.Session;
031import java.util.Arrays;
032import java.util.Collections;
033import java.util.List;
034import javax.enterprise.context.RequestScoped;
035
036@RequestScoped
037public class CreateForumMessageAttachmentCommand
038        extends BaseSimpleCommand<CreateForumMessageAttachmentForm> {
039    
040    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
041    
042    static {
043        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
044                new FieldDefinition("ForumMessageName", FieldType.ENTITY_NAME, true, null, null),
045                new FieldDefinition("ForumMessageAttachmentSequence", FieldType.UNSIGNED_INTEGER, false, null, null),
046                new FieldDefinition("MimeTypeName", FieldType.MIME_TYPE, true, null, null),
047                new FieldDefinition("Clob", FieldType.STRING, false, 1L, null),
048                new FieldDefinition("String", FieldType.STRING, false, 1L, 512L)
049                ));
050    }
051    
052    /** Creates a new instance of CreateForumMessageAttachmentCommand */
053    public CreateForumMessageAttachmentCommand() {
054        super(null, FORM_FIELD_DEFINITIONS, false);
055    }
056    
057    @Override
058    protected BaseResult execute() {
059        var forumControl = Session.getModelController(ForumControl.class);
060        var forumMessageName = form.getForumMessageName();
061        var forumMessage = forumControl.getForumMessageByNameForUpdate(forumMessageName);
062
063        if(forumMessage != null) {
064            var mimeTypeControl = Session.getModelController(MimeTypeControl.class);
065            var mimeTypeName = form.getMimeTypeName();
066            var mimeType = mimeTypeControl.getMimeTypeByName(mimeTypeName);
067
068            if(mimeType != null) {
069                var entityAttributeTypeName = mimeType.getLastDetail().getEntityAttributeType().getEntityAttributeTypeName();
070                var blob = form.getBlob();
071                var clob = form.getClob();
072
073                if(entityAttributeTypeName.equals(EntityAttributeTypes.BLOB.name()) && blob == null) {
074                    addExecutionError(ExecutionErrors.MissingBlob.name());
075                } else {
076                    if(entityAttributeTypeName.equals(EntityAttributeTypes.CLOB.name()) && clob == null) {
077                        addExecutionError(ExecutionErrors.MissingClob.name());
078                    }
079                }
080
081                if(!hasExecutionErrors()) {
082                    var partyPK = getPartyPK();
083                    var strForumMessageAttachmentSequence = form.getForumMessageAttachmentSequence();
084                    var forumMessageAttachmentSequence = strForumMessageAttachmentSequence == null ? null : Integer.valueOf(strForumMessageAttachmentSequence);
085                    ForumMessageAttachment forumMessageAttachment;
086                    var forumMessageStatus = forumControl.getOrCreateForumMessageStatusForUpdate(forumMessage);
087
088                    if(forumMessageAttachmentSequence == null) {
089                        forumMessageAttachmentSequence = forumMessageStatus.getForumMessageAttachmentSequence() + 1;
090                        forumMessageStatus.setForumMessageAttachmentSequence(forumMessageAttachmentSequence);
091                    } else {
092                        forumMessageAttachment = forumControl.getForumMessageAttachmentBySequence(forumMessage, forumMessageAttachmentSequence);
093
094                        if(forumMessageAttachment == null) {
095                            // If the forumMessageAttachmentSequence is > the last one that was recorded in the OrderStatus, jump the
096                            // one in OrderStatus forward - it should always record the greatest forumMessageAttachmentSequence used.
097                            if(forumMessageAttachmentSequence > forumMessageStatus.getForumMessageAttachmentSequence()) {
098                                forumMessageStatus.setForumMessageAttachmentSequence(forumMessageAttachmentSequence);
099                            }
100                        } else {
101                            addExecutionError(ExecutionErrors.DuplicateForumMessageAttachmentSequence.name(), forumMessageName, forumMessageAttachmentSequence.toString());
102                        }
103                    }
104
105                    forumMessageAttachment = forumControl.createForumMessageAttachment(forumMessage, forumMessageAttachmentSequence, mimeType, partyPK);
106
107                    if(entityAttributeTypeName.equals(EntityAttributeTypes.BLOB.name())) {
108                        forumControl.createForumMessageBlobAttachment(forumMessageAttachment, blob, partyPK);
109                    } else {
110                        if(entityAttributeTypeName.equals(EntityAttributeTypes.CLOB.name())) {
111                            forumControl.createForumMessageClobAttachment(forumMessageAttachment, clob, partyPK);
112                        }
113                    }
114                }
115            } else {
116                addExecutionError(ExecutionErrors.UnknownMimeTypeName.name(), mimeTypeName);
117            }
118        } else {
119            addExecutionError(ExecutionErrors.UnknownForumMessageName.name(), forumMessageName);
120        }
121        
122        return null;
123    }
124    
125}