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.control.user.chain.server.command;
018
019import com.echothree.control.user.chain.common.form.GetChainInstancesForm;
020import com.echothree.control.user.chain.common.result.ChainResultFactory;
021import com.echothree.control.user.chain.common.result.GetChainInstancesResult;
022import com.echothree.model.control.chain.server.control.ChainControl;
023import com.echothree.model.data.chain.server.entity.Chain;
024import com.echothree.model.data.chain.server.entity.ChainKind;
025import com.echothree.model.data.chain.server.entity.ChainType;
026import com.echothree.model.data.user.common.pk.UserVisitPK;
027import com.echothree.util.common.message.ExecutionErrors;
028import com.echothree.util.common.validation.FieldDefinition;
029import com.echothree.util.common.validation.FieldType;
030import com.echothree.util.common.command.BaseResult;
031import com.echothree.util.server.control.BaseSimpleCommand;
032import com.echothree.util.server.persistence.Session;
033import java.util.Arrays;
034import java.util.Collections;
035import java.util.List;
036
037public class GetChainInstancesCommand
038        extends BaseSimpleCommand<GetChainInstancesForm> {
039    
040    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
041    
042    static {
043        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
044                new FieldDefinition("ChainKindName", FieldType.ENTITY_NAME, true, null, null),
045                new FieldDefinition("ChainTypeName", FieldType.ENTITY_NAME, true, null, null),
046                new FieldDefinition("ChainName", FieldType.ENTITY_NAME, true, null, null)
047                ));
048    }
049    
050    /** Creates a new instance of GetChainInstancesCommand */
051    public GetChainInstancesCommand(UserVisitPK userVisitPK, GetChainInstancesForm form) {
052        super(userVisitPK, form, null, FORM_FIELD_DEFINITIONS, true);
053    }
054    
055    @Override
056    protected BaseResult execute() {
057        var chainControl = Session.getModelController(ChainControl.class);
058        GetChainInstancesResult result = ChainResultFactory.getGetChainInstancesResult();
059        String chainKindName = form.getChainKindName();
060        ChainKind chainKind = chainControl.getChainKindByName(chainKindName);
061        
062        if(chainKind != null) {
063            String chainTypeName = form.getChainTypeName();
064            ChainType chainType = chainControl.getChainTypeByName(chainKind, chainTypeName);
065            
066            if(chainType != null) {
067                String chainName = form.getChainName();
068                Chain chain = chainControl.getChainByName(chainType, chainName);
069                
070                if(chain != null) {
071                    result.setChain(chainControl.getChainTransfer(getUserVisit(), chain));
072                    result.setChainInstances(chainControl.getChainInstanceTransfersByChain(getUserVisit(), chain));
073                } else {
074                    addExecutionError(ExecutionErrors.UnknownChainName.name(), chainKindName, chainTypeName, chainName);
075                }
076            } else {
077                addExecutionError(ExecutionErrors.UnknownChainTypeName.name(), chainKindName, chainTypeName);
078            }
079        } else {
080            addExecutionError(ExecutionErrors.UnknownChainKindName.name(), chainKindName);
081        }
082        
083        return result;
084    }
085    
086}