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.core.server.logic;
018
019import com.echothree.control.user.core.common.spec.AppearanceUniversalSpec;
020import com.echothree.model.control.core.common.ComponentVendors;
021import com.echothree.model.control.core.common.EntityTypes;
022import com.echothree.model.control.core.common.exception.InvalidParameterCountException;
023import com.echothree.model.control.core.common.exception.UnknownAppearanceNameException;
024import com.echothree.model.control.core.common.exception.UnknownColorNameException;
025import com.echothree.model.control.core.common.exception.UnknownFontStyleNameException;
026import com.echothree.model.control.core.common.exception.UnknownFontWeightNameException;
027import com.echothree.model.control.core.common.exception.UnknownTextDecorationNameException;
028import com.echothree.model.control.core.common.exception.UnknownTextTransformationNameException;
029import com.echothree.model.control.core.server.control.CoreControl;
030import com.echothree.model.data.core.server.entity.Appearance;
031import com.echothree.model.data.core.server.entity.Color;
032import com.echothree.model.data.core.server.entity.EntityInstance;
033import com.echothree.model.data.core.server.entity.FontStyle;
034import com.echothree.model.data.core.server.entity.FontWeight;
035import com.echothree.model.data.core.server.entity.TextDecoration;
036import com.echothree.model.data.core.server.entity.TextTransformation;
037import com.echothree.util.common.message.ExecutionErrors;
038import com.echothree.util.server.control.BaseLogic;
039import com.echothree.util.server.message.ExecutionErrorAccumulator;
040import com.echothree.util.server.persistence.EntityPermission;
041import com.echothree.util.server.persistence.Session;
042
043public class AppearanceLogic
044        extends BaseLogic {
045    
046    private AppearanceLogic() {
047        super();
048    }
049    
050    private static class AppearanceLogicHolder {
051        static AppearanceLogic instance = new AppearanceLogic();
052    }
053    
054    public static AppearanceLogic getInstance() {
055        return AppearanceLogicHolder.instance;
056    }
057
058    public Appearance getAppearanceByName(final ExecutionErrorAccumulator eea, final String appearanceName,
059            final EntityPermission entityPermission) {
060        var coreControl = Session.getModelController(CoreControl.class);
061        var appearance = coreControl.getAppearanceByName(appearanceName, entityPermission);
062
063        if(appearance == null) {
064            handleExecutionError(UnknownAppearanceNameException.class, eea, ExecutionErrors.UnknownAppearanceName.name(), appearanceName);
065        }
066
067        return appearance;
068    }
069
070    public Appearance getAppearanceByName(final ExecutionErrorAccumulator eea, final String appearanceName) {
071        return getAppearanceByName(eea, appearanceName, EntityPermission.READ_ONLY);
072    }
073
074    public Appearance getAppearanceByNameForUpdate(final ExecutionErrorAccumulator eea, final String appearanceName) {
075        return getAppearanceByName(eea, appearanceName, EntityPermission.READ_WRITE);
076    }
077
078    public Appearance getAppearanceByUniversalSpec(final ExecutionErrorAccumulator eea,
079            final AppearanceUniversalSpec universalSpec, final EntityPermission entityPermission) {
080        Appearance appearance = null;
081        var coreControl = Session.getModelController(CoreControl.class);
082        var appearanceName = universalSpec.getAppearanceName();
083        var parameterCount = (appearanceName == null ? 0 : 1) + EntityInstanceLogic.getInstance().countPossibleEntitySpecs(universalSpec);
084
085        switch(parameterCount) {
086            case 1:
087                if(appearanceName == null) {
088                    var entityInstance = EntityInstanceLogic.getInstance().getEntityInstance(eea, universalSpec,
089                            ComponentVendors.ECHO_THREE.name(), EntityTypes.Appearance.name());
090
091                    if(!eea.hasExecutionErrors()) {
092                        appearance = coreControl.getAppearanceByEntityInstance(entityInstance, entityPermission);
093                    }
094                } else {
095                    appearance = getAppearanceByName(eea, appearanceName, entityPermission);
096                }
097                break;
098            default:
099                handleExecutionError(InvalidParameterCountException.class, eea, ExecutionErrors.InvalidParameterCount.name());
100                break;
101        }
102
103        return appearance;
104    }
105
106    public Appearance getAppearanceByUniversalSpec(final ExecutionErrorAccumulator eea,
107            final AppearanceUniversalSpec universalSpec) {
108        return getAppearanceByUniversalSpec(eea, universalSpec, EntityPermission.READ_ONLY);
109    }
110
111    public Appearance getAppearanceByUniversalSpecForUpdate(final ExecutionErrorAccumulator eea,
112            final AppearanceUniversalSpec universalSpec) {
113        return getAppearanceByUniversalSpec(eea, universalSpec, EntityPermission.READ_WRITE);
114    }
115
116    public Color getColorByName(final ExecutionErrorAccumulator eea, final String colorName) {
117        var coreControl = Session.getModelController(CoreControl.class);
118        Color color = coreControl.getColorByName(colorName);
119
120        if(color == null) {
121            handleExecutionError(UnknownColorNameException.class, eea, ExecutionErrors.UnknownColorName.name(), colorName);
122        }
123
124        return color;
125    }
126    
127    public FontStyle getFontStyleByName(final ExecutionErrorAccumulator eea, final String fontStyleName) {
128        var coreControl = Session.getModelController(CoreControl.class);
129        FontStyle fontStyle = coreControl.getFontStyleByName(fontStyleName);
130
131        if(fontStyle == null) {
132            handleExecutionError(UnknownFontStyleNameException.class, eea, ExecutionErrors.UnknownFontStyleName.name(), fontStyleName);
133        }
134
135        return fontStyle;
136    }
137    
138    public FontWeight getFontWeightByName(final ExecutionErrorAccumulator eea, final String fontWeightName) {
139        var coreControl = Session.getModelController(CoreControl.class);
140        FontWeight fontWeight = coreControl.getFontWeightByName(fontWeightName);
141
142        if(fontWeight == null) {
143            handleExecutionError(UnknownFontWeightNameException.class, eea, ExecutionErrors.UnknownFontWeightName.name(), fontWeightName);
144        }
145
146        return fontWeight;
147    }
148    
149    public TextDecoration getTextDecorationByName(final ExecutionErrorAccumulator eea, final String textDecorationName) {
150        var coreControl = Session.getModelController(CoreControl.class);
151        TextDecoration textDecoration = coreControl.getTextDecorationByName(textDecorationName);
152
153        if(textDecoration == null) {
154            handleExecutionError(UnknownTextDecorationNameException.class, eea, ExecutionErrors.UnknownTextDecorationName.name(), textDecorationName);
155        }
156
157        return textDecoration;
158    }
159    
160    public TextTransformation getTextTransformationByName(final ExecutionErrorAccumulator eea, final String textTransformationName) {
161        var coreControl = Session.getModelController(CoreControl.class);
162        TextTransformation textTransformation = coreControl.getTextTransformationByName(textTransformationName);
163
164        if(textTransformation == null) {
165            handleExecutionError(UnknownTextTransformationNameException.class, eea, ExecutionErrors.UnknownTextTransformationName.name(), textTransformationName);
166        }
167
168        return textTransformation;
169    }
170    
171}