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.asterix.lang.common.statement;
  
  import java.util.Map;
  
  import org.apache.asterix.common.exceptions.CompilationException;
  import org.apache.asterix.common.metadata.DataverseName;
  import org.apache.asterix.common.metadata.Namespace;
  import org.apache.asterix.lang.common.base.AbstractStatement;
  import org.apache.asterix.lang.common.expression.RecordConstructor;
  import org.apache.asterix.lang.common.struct.Identifier;
  import org.apache.asterix.lang.common.util.ConfigurationUtil;
  import org.apache.asterix.lang.common.util.ExpressionUtils;
  import org.apache.asterix.lang.common.visitor.base.ILangVisitor;
  import org.apache.asterix.object.base.AdmObjectNode;
  import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
  import org.apache.hyracks.algebricks.common.utils.Pair;
  
  /**
   * The new create feed statement only concerns the feed adaptor configuration.
   * All feeds are considered as primary feeds.
   */
  public class CreateFeedStatement extends AbstractStatement {
  
      private final Pair<Namespace, Identifier> qName;
      private final boolean ifNotExists;
      private final AdmObjectNode withObjectNode;
  
      public CreateFeedStatement(Pair<Namespace, Identifier> qName, RecordConstructor withRecord, boolean ifNotExists)
              throws AlgebricksException {
          this.qName = qName;
          this.ifNotExists = ifNotExists;
          this.withObjectNode = withRecord == null ? null : ExpressionUtils.toNode(withRecord);
      }
  
      public Namespace getNamespace() {
          return qName.first;
      }
  
      public DataverseName getDataverseName() {
          return qName.first == null ? null : qName.first.getDataverseName();
      }
  
      public Identifier getFeedName() {
          return qName.second;
      }
  
      public boolean getIfNotExists() {
          return this.ifNotExists;
      }
  
      @Override
      public Kind getKind() {
          return Kind.CREATE_FEED;
      }
  
      @Override
      public <R, T> R accept(ILangVisitor<R, T> visitor, T arg) throws CompilationException {
          return visitor.visit(this, arg);
      }
  
      @Override
      public byte getCategory() {
          return Category.DDL;
      }
  
      public Map<String, String> getConfiguration() throws CompilationException {
          return ConfigurationUtil.toProperties(withObjectNode);
      }
  
      public AdmObjectNode getWithObjectNode() {
          return withObjectNode;
      }
  }
  