content: /*
   * Copyright 2021-2022 Alibaba Group Holding Ltd.
   *
   *    Licensed 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 com.aliyun.fastmodel.parser.visitor;
  
  import java.util.List;
  
  import com.aliyun.fastmodel.core.tree.AliasedName;
  import com.aliyun.fastmodel.core.tree.Comment;
  import com.aliyun.fastmodel.core.tree.Node;
  import com.aliyun.fastmodel.core.tree.Property;
  import com.aliyun.fastmodel.core.tree.QualifiedName;
  import com.aliyun.fastmodel.core.tree.expr.Identifier;
  import com.aliyun.fastmodel.core.tree.statement.domain.CreateDomain;
  import com.aliyun.fastmodel.core.tree.statement.domain.DropDomain;
  import com.aliyun.fastmodel.core.tree.statement.domain.RenameDomain;
  import com.aliyun.fastmodel.core.tree.statement.domain.SetDomainAlias;
  import com.aliyun.fastmodel.core.tree.statement.domain.SetDomainComment;
  import com.aliyun.fastmodel.core.tree.statement.domain.SetDomainProperties;
  import com.aliyun.fastmodel.core.tree.statement.domain.UnSetDomainProperties;
  import com.aliyun.fastmodel.core.tree.statement.element.CreateElement;
  import com.aliyun.fastmodel.parser.AstBuilder;
  import com.aliyun.fastmodel.parser.annotation.SubVisitor;
  import com.aliyun.fastmodel.parser.generate.FastModelGrammarParser.CreateDomainStatementContext;
  import com.aliyun.fastmodel.parser.generate.FastModelGrammarParser.DropDomainStatementContext;
  import com.aliyun.fastmodel.parser.generate.FastModelGrammarParser.RenameDomainContext;
  import com.aliyun.fastmodel.parser.generate.FastModelGrammarParser.SetDomainAliasedNameContext;
  import com.aliyun.fastmodel.parser.generate.FastModelGrammarParser.SetDomainCommentContext;
  import com.aliyun.fastmodel.parser.generate.FastModelGrammarParser.SetDomainPropertiesContext;
  import com.aliyun.fastmodel.parser.generate.FastModelGrammarParser.UnSetDomainPropertiesContext;
  import com.google.common.collect.ImmutableList;
  
  import static java.util.stream.Collectors.toList;
  
  /**
   * Desc:
   *
   * @author panguanjing
   * @date 2021/4/8
   */
  @SubVisitor
  public class DomainVisitor extends AstBuilder {
  
      @Override
      public Node visitCreateDomainStatement(CreateDomainStatementContext ctx) {
          List<Property> properties = ImmutableList.of();
          if (ctx.setProperties() != null) {
              properties = visit(ctx.setProperties().tableProperties().keyValueProperty(), Property.class);
          }
          Comment comment = visitIfPresent(ctx.comment(), Comment.class).orElse(null);
          AliasedName aliasedName = visitIfPresent(ctx.alias(), AliasedName.class).orElse(null);
          return new CreateDomain(
              CreateElement.builder()
                  .qualifiedName(getQualifiedName(ctx.qualifiedName()))
                  .notExists(ctx.ifNotExists() != null)
                  .properties(properties).comment(comment)
                  .aliasedName(aliasedName)
                  .createOrReplace(ctx.replace() != null)
                  .build());
      }
  
      @Override
      public Node visitRenameDomain(RenameDomainContext ctx) {
          QualifiedName qualifiedName = getQualifiedName(ctx.alterStatementSuffixRename().qualifiedName());
          QualifiedName sourceQualified = getQualifiedName(ctx.qualifiedName());
          return new RenameDomain(sourceQualified, qualifiedName);
      }
  
      @Override
      public Node visitSetDomainComment(SetDomainCommentContext ctx) {
          Comment comment = (Comment)visit(ctx.alterStatementSuffixSetComment());
          return new SetDomainComment(getQualifiedName(ctx.qualifiedName()), comment);
      }
  
      @Override
      public Node visitSetDomainProperties(SetDomainPropertiesContext ctx) {
          return new SetDomainProperties(getQualifiedName(ctx.qualifiedName()),
              getProperties(ctx.setProperties())
          );
      }
  
      @Override
      public Node visitUnSetDomainProperties(UnSetDomainPropertiesContext ctx) {
          List<Identifier> list = getUnSetProperties(ctx.unSetProperties());
          return new UnSetDomainProperties(getQualifiedName(ctx.qualifiedName()),
              list.stream().map(Identifier::getValue).collect(toList())
          );
      }
  
      @Override
      public Node visitDropDomainStatement(DropDomainStatementContext ctx) {
          return new DropDomain(getQualifiedName(ctx.qualifiedName()));
      }
  
      @Override
      public Node visitSetDomainAliasedName(SetDomainAliasedNameContext ctx) {
          return new SetDomainAlias(getQualifiedName(ctx.qualifiedName()), (AliasedName)visit(ctx.setAliasedName()));
      }
  }
  