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.core.server.command;
018
019import com.echothree.control.user.core.common.form.CreateCacheEntryForm;
020import com.echothree.model.control.core.common.EntityAttributeTypes;
021import com.echothree.model.control.core.server.control.CacheEntryControl;
022import com.echothree.model.control.core.server.control.MimeTypeControl;
023import com.echothree.model.control.uom.common.UomConstants;
024import com.echothree.model.control.uom.server.logic.UnitOfMeasureTypeLogic;
025import com.echothree.model.data.user.common.pk.UserVisitPK;
026import com.echothree.util.common.command.BaseResult;
027import com.echothree.util.common.exception.PersistenceDatabaseException;
028import com.echothree.util.common.message.ExecutionErrors;
029import com.echothree.util.common.validation.FieldDefinition;
030import com.echothree.util.common.validation.FieldType;
031import com.echothree.util.server.control.BaseSimpleCommand;
032import com.echothree.util.server.persistence.PersistenceUtils;
033import com.echothree.util.server.persistence.Session;
034import java.util.Arrays;
035import java.util.Collections;
036import java.util.List;
037import javax.enterprise.context.RequestScoped;
038
039@RequestScoped
040public class CreateCacheEntryCommand
041        extends BaseSimpleCommand<CreateCacheEntryForm> {
042    
043    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
044    
045    static {
046        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
047                new FieldDefinition("CacheEntryKey", FieldType.STRING, true, 1L, 200L),
048                new FieldDefinition("MimeTypeName", FieldType.MIME_TYPE, true, null, null),
049                new FieldDefinition("ValidForTime", FieldType.UNSIGNED_LONG, false, null, null),
050                new FieldDefinition("ValidForTimeUnitOfMeasureTypeName", FieldType.ENTITY_NAME, false, null, null),
051                new FieldDefinition("Clob", FieldType.STRING, false, 1L, null)
052                ));
053    }
054    
055    /** Creates a new instance of CreateCacheEntryCommand */
056    public CreateCacheEntryCommand() {
057        super(null, FORM_FIELD_DEFINITIONS, false);
058    }
059    
060    @Override
061    protected BaseResult execute() {
062        var cacheEntryControl = Session.getModelController(CacheEntryControl.class);
063        var cacheEntryKey = form.getCacheEntryKey();
064        var cacheEntry = cacheEntryControl.getCacheEntryByCacheEntryKey(cacheEntryKey);
065
066        if(cacheEntry == null) {
067            var mimeTypeControl = Session.getModelController(MimeTypeControl.class);
068            var mimeTypeName = form.getMimeTypeName();
069            var mimeType = mimeTypeControl.getMimeTypeByName(mimeTypeName);
070
071            if(mimeType != null) {
072                var validForTime = UnitOfMeasureTypeLogic.getInstance().checkUnitOfMeasure(this, UomConstants.UnitOfMeasureKindUseType_TIME,
073                        form.getValidForTime(), form.getValidForTimeUnitOfMeasureTypeName(),
074                        null, ExecutionErrors.MissingRequiredValidForTime.name(), null, ExecutionErrors.MissingRequiredValidForTimeUnitOfMeasureTypeName.name(),
075                        null, ExecutionErrors.UnknownValidForTimeUnitOfMeasureTypeName.name());
076
077                if(!hasExecutionErrors()) {
078                    var entityAttributeTypeName = mimeType.getLastDetail().getEntityAttributeType().getEntityAttributeTypeName();
079                    var entityRefs = form.getEntityRefs();
080
081                    try {
082                        if(entityAttributeTypeName.equals(EntityAttributeTypes.CLOB.name())) {
083                            var clob = form.getClob();
084
085                            if(clob != null) {
086                                cacheEntryControl.createCacheEntry(cacheEntryKey, mimeType, session.START_TIME_LONG,
087                                        validForTime == null ? null : session.START_TIME + validForTime, clob, null, entityRefs);
088                            } else {
089                                addExecutionError(ExecutionErrors.MissingClob.name());
090                            }
091                        } else if(entityAttributeTypeName.equals(EntityAttributeTypes.BLOB.name())) {
092                            var blob = form.getBlob();
093
094                            if(blob != null) {
095                                cacheEntryControl.createCacheEntry(cacheEntryKey, mimeType, session.START_TIME_LONG,
096                                        validForTime == null ? null : session.START_TIME + validForTime, null, blob, entityRefs);
097                            } else {
098                                addExecutionError(ExecutionErrors.MissingBlob.name());
099                            }
100                        } else {
101                            addExecutionError(ExecutionErrors.InvalidMimeType.name(), mimeTypeName);
102                        }
103                    } catch(PersistenceDatabaseException pde) {
104                        if(PersistenceUtils.getInstance().isIntegrityConstraintViolation(pde)) {
105                            // Duplicate key in index, add this as a regular error, and continue. Tested w/ MySQL only.
106                            addExecutionError(ExecutionErrors.DuplicateCacheEntryKey.name(), cacheEntryKey);
107                            pde = null;
108                        }
109
110                        if(pde != null) {
111                            throw pde;
112                        }
113                    }
114                }
115            } else {
116                addExecutionError(ExecutionErrors.UnknownMimeTypeName.name(), mimeTypeName);
117            }
118        } else {
119            addExecutionError(ExecutionErrors.DuplicateCacheEntryKey.name(), cacheEntryKey);
120        }
121        
122        return null;
123    }
124    
125}