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 com.datastax.oss.driver.internal.querybuilder.schema;
  
  import com.datastax.oss.driver.api.core.CqlIdentifier;
  import com.datastax.oss.driver.api.querybuilder.schema.Drop;
  import com.datastax.oss.driver.internal.querybuilder.CqlHelper;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import edu.umd.cs.findbugs.annotations.Nullable;
  import net.jcip.annotations.Immutable;
  
  @Immutable
  public class DefaultDrop implements Drop {
  
    private final CqlIdentifier keyspace;
    private final CqlIdentifier itemName;
    private final String schemaTypeName;
  
    private final boolean ifExists;
  
    public DefaultDrop(@NonNull CqlIdentifier itemName, @NonNull String schemaTypeName) {
      this(null, itemName, schemaTypeName);
    }
  
    public DefaultDrop(
        @Nullable CqlIdentifier keyspace,
        @NonNull CqlIdentifier itemName,
        @NonNull String schemaTypeName) {
      this(keyspace, itemName, schemaTypeName, false);
    }
  
    public DefaultDrop(
        @Nullable CqlIdentifier keyspace,
        @NonNull CqlIdentifier itemName,
        @NonNull String schemaTypeName,
        boolean ifExists) {
      this.keyspace = keyspace;
      this.itemName = itemName;
      this.schemaTypeName = schemaTypeName;
      this.ifExists = ifExists;
    }
  
    @NonNull
    @Override
    public Drop ifExists() {
      return new DefaultDrop(keyspace, itemName, schemaTypeName, true);
    }
  
    @NonNull
    @Override
    public String asCql() {
      StringBuilder builder = new StringBuilder("DROP ").append(schemaTypeName).append(' ');
  
      if (ifExists) {
        builder.append("IF EXISTS ");
      }
  
      CqlHelper.qualify(keyspace, itemName, builder);
  
      return builder.toString();
    }
  
    @Override
    public String toString() {
      return asCql();
    }
  
    @Nullable
    public CqlIdentifier getKeyspace() {
      return keyspace;
    }
  
    @NonNull
    public CqlIdentifier getName() {
      return itemName;
    }
  
    @NonNull
    public String getSchemaType() {
      return schemaTypeName;
    }
  
    public boolean isIfExists() {
      return ifExists;
    }
  }
  