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.
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  package org.apache.cassandra.schema;
  
  import com.google.common.collect.ImmutableSet;
  
  import org.apache.cassandra.cql3.*;
  import org.apache.cassandra.db.marshal.AbstractType;
  import org.apache.cassandra.db.marshal.UserType;
  
  import static org.apache.cassandra.utils.ByteBufferUtil.bytes;
  import static org.apache.cassandra.utils.LocalizeString.toLowerCaseLocalized;
  import static org.apache.cassandra.utils.LocalizeString.toUpperCaseLocalized;
  
  public final class CQLTypeParser
  {
      private static final ImmutableSet<String> PRIMITIVE_TYPES;
  
      static
      {
          ImmutableSet.Builder<String> builder = ImmutableSet.builder();
          for (CQL3Type.Native primitive : CQL3Type.Native.values())
              builder.add(toLowerCaseLocalized(primitive.name()));
          PRIMITIVE_TYPES = builder.build();
      }
  
      public static AbstractType<?> parse(String keyspace, String unparsed, Types userTypes)
      {
          String lowercased = toLowerCaseLocalized(unparsed);
  
          // fast path for the common case of a primitive type
          if (PRIMITIVE_TYPES.contains(lowercased))
              return CQL3Type.Native.valueOf(toUpperCaseLocalized(unparsed)).getType();
  
          // special-case top-level UDTs
          UserType udt = userTypes.getNullable(bytes(lowercased));
          if (udt != null)
              return udt;
  
          return parseRaw(unparsed).prepareInternal(keyspace, userTypes).getType();
      }
  
      static CQL3Type.Raw parseRaw(String type)
      {
          return CQLFragmentParser.parseAny(CqlParser::comparatorType, type, "CQL type");
      }
  }
  