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.cassandra.cql3.statements;
  
  import org.apache.commons.lang3.builder.ToStringBuilder;
  import org.apache.commons.lang3.builder.ToStringStyle;
  
  import org.apache.cassandra.cql3.CQLStatement;
  import org.apache.cassandra.cql3.QualifiedName;
  import org.apache.cassandra.service.ClientState;
  
  /**
   * Abstract class for statements that work on sub-keyspace level (tables, views, indexes, functions, etc.)
   */
  public abstract class QualifiedStatement extends CQLStatement.Raw
  {
      final QualifiedName qualifiedName;
  
      QualifiedStatement(QualifiedName qualifiedName)
      {
          this.qualifiedName = qualifiedName;
      }
  
      public boolean isFullyQualified()
      {
          return qualifiedName.hasKeyspace();
      }
  
      public void setKeyspace(ClientState state)
      {
          if (!qualifiedName.hasKeyspace())
          {
              // XXX: We explicitly only want to call state.getKeyspace() in this case, as we don't want to throw
              // if not logged in any keyspace but a keyspace is explicitly set on the statement. So don't move
              // the call outside the 'if' or replace the method by 'setKeyspace(state.getKeyspace())'
              qualifiedName.setKeyspace(state.getKeyspace(), true);
          }
      }
  
      // Only for internal calls, use the version with ClientState for user queries. In particular, the
      // version with ClientState throws an exception if the statement does not have keyspace set *and*
      // ClientState has no keyspace
      public void setKeyspace(String keyspace)
      {
          qualifiedName.setKeyspace(keyspace, true);
      }
  
      public String keyspace()
      {
          if (!qualifiedName.hasKeyspace())
              throw new IllegalStateException("Statement must have keyspace set");
  
          return qualifiedName.getKeyspace();
      }
  
      public String name()
      {
          return qualifiedName.getName();
      }
      
      @Override
      public String toString()
      {
          return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
      }
  
      public static abstract class Composite extends QualifiedStatement
      {
          Composite()
          {
              super(null);
          }
  
          protected abstract Iterable<? extends QualifiedStatement> getStatements();
  
          @Override
          public boolean isFullyQualified()
          {
              for (QualifiedStatement statement : getStatements())
                  if (!statement.isFullyQualified())
                      return false;
  
              return true;
          }
  
          @Override
          public void setKeyspace(ClientState state)
          {
              for (QualifiedStatement statement : getStatements())
                  statement.setKeyspace(state);
          }
  
          @Override
          public void setKeyspace(String keyspace)
          {
              for (QualifiedStatement statement : getStatements())
                  statement.setKeyspace(keyspace);
          }
  
          @Override
          public String keyspace()
          {
              return null;
          }
  
          @Override
          public String name()
          {
              return null;
          }
      }
  }
  