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   *  regarding copyright ownership.  The ASF licenses this file
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  package org.apache.cayenne.project.validation;
  
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.map.SQLTemplateDescriptor;
  import org.apache.cayenne.util.Util;
  import org.apache.cayenne.validation.ValidationResult;
  
  import java.util.Map;
  import java.util.function.Supplier;
  
  class SQLTemplateValidator extends BaseQueryValidator<SQLTemplateDescriptor> {
  
      /**
       * @param configSupplier the config defining the behavior of this validator.
       * @since 5.0
       */
      public SQLTemplateValidator(Supplier<ValidationConfig> configSupplier) {
          super(configSupplier);
      }
  
      @Override
      protected ConfigurationNodeValidator<SQLTemplateDescriptor>.Performer<SQLTemplateDescriptor> validateQuery(
              SQLTemplateDescriptor query, ValidationResult validationResult) {
          return super.validateQuery(query, validationResult)
                  .performIfEnabled(Inspection.SQL_TEMPLATE_NO_ROOT, this::checkForRoot)
                  .performIfEnabled(Inspection.SQL_TEMPLATE_NO_DEFAULT_SQL, this::checkForDefaultSQL);
      }
  
      private void checkForRoot(SQLTemplateDescriptor query, ValidationResult validationResult) {
          DataMap map = query.getDataMap();
          if (query.getRoot() == null && map != null) {
              addFailure(validationResult, query, "SQLTemplate query '%s' has no root", query.getName());
          }
      }
  
      private void checkForDefaultSQL(SQLTemplateDescriptor query, ValidationResult validationResult) {
          if (!Util.isEmptyString(query.getSql())) {
              return;
          }
          // see if there is at least one adapter-specific template...
          for (Map.Entry<String, String> entry : query.getAdapterSql().entrySet()) {
              if (!Util.isEmptyString(entry.getValue())) {
                  return;
              }
          }
          addFailure(validationResult, query, "SQLTemplate query '%s' has no default SQL template", query.getName());
      }
  }
  