content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  package org.apache.causeway.core.metamodel.facets.object.logicaltype;
  
  import org.apache.causeway.commons.collections.Can;
  import org.apache.causeway.commons.internal.base._Strings;
  import org.apache.causeway.core.config.progmodel.ProgrammingModelConstants;
  import org.apache.causeway.core.metamodel.context.MetaModelContext;
  import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
  import org.apache.causeway.core.metamodel.specloader.validator.MetaModelValidatorAbstract;
  import org.apache.causeway.core.metamodel.specloader.validator.ValidationFailure;
  
  /**
   * DomainObjects must have a non-empty namespace,
   * eg. @Named("Customer") is considered invalid,
   * whereas eg. @Named("sales.Customer") is valid.
   *
   * @since 2.0
   */
  public class LogicalTypeMalformedValidator
  extends MetaModelValidatorAbstract {
  
      public LogicalTypeMalformedValidator(final MetaModelContext metaModelContext) {
          super(metaModelContext, spec->spec.isEntityOrViewModel()
                  || spec.isInjectable());
      }
  
      @Override
      public void validateObjectEnter(final ObjectSpecification spec) {
  
          var logicalType = spec.logicalType();
          var logicalTypeName = logicalType.logicalName();
  
          var nameParts = _Strings.splitThenStream(logicalTypeName, ".")
                  .collect(Can.toCan());
  
          if(!nameParts.getCardinality().isMultiple()
                  || nameParts.stream()
                      .anyMatch(String::isEmpty)) {
  
              var validationResponse = spec.isInjectable()
                      ? ProgrammingModelConstants.MessageTemplate.DOMAIN_SERVICE_MISSING_A_NAMESPACE
                      : ProgrammingModelConstants.MessageTemplate.DOMAIN_OBJECT_MISSING_A_NAMESPACE;
  
              ValidationFailure.raiseFormatted(spec,
                      validationResponse.builder()
                          .addVariable("type", spec.getFullIdentifier())
                          .addVariable("logicalTypeName", logicalTypeName)
                          .buildMessage());
          }
  
      }
  
  }
  