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.core.type;
  
  import com.datastax.oss.driver.api.core.CqlIdentifier;
  import com.datastax.oss.driver.api.core.detach.AttachmentPoint;
  import com.datastax.oss.driver.api.core.type.DataType;
  import com.datastax.oss.driver.api.core.type.DataTypes;
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableList;
  import com.datastax.oss.protocol.internal.ProtocolConstants;
  import com.datastax.oss.protocol.internal.response.result.RawType;
  import com.datastax.oss.protocol.internal.util.IntMap;
  import java.util.List;
  import java.util.Map;
  
  public class DataTypeHelper {
  
    public static DataType fromProtocolSpec(RawType rawType, AttachmentPoint attachmentPoint) {
      DataType type = PRIMITIVE_TYPES_BY_CODE.get(rawType.id);
      if (type != null) {
        return type;
      } else {
        switch (rawType.id) {
          case ProtocolConstants.DataType.CUSTOM:
            RawType.RawCustom rawCustom = (RawType.RawCustom) rawType;
            return DataTypes.custom(rawCustom.className);
          case ProtocolConstants.DataType.LIST:
            RawType.RawList rawList = (RawType.RawList) rawType;
            return DataTypes.listOf(fromProtocolSpec(rawList.elementType, attachmentPoint));
          case ProtocolConstants.DataType.SET:
            RawType.RawSet rawSet = (RawType.RawSet) rawType;
            return DataTypes.setOf(fromProtocolSpec(rawSet.elementType, attachmentPoint));
          case ProtocolConstants.DataType.MAP:
            RawType.RawMap rawMap = (RawType.RawMap) rawType;
            return DataTypes.mapOf(
                fromProtocolSpec(rawMap.keyType, attachmentPoint),
                fromProtocolSpec(rawMap.valueType, attachmentPoint));
          case ProtocolConstants.DataType.TUPLE:
            RawType.RawTuple rawTuple = (RawType.RawTuple) rawType;
            List<RawType> rawFieldsList = rawTuple.fieldTypes;
            ImmutableList.Builder<DataType> fields = ImmutableList.builder();
            for (RawType rawField : rawFieldsList) {
              fields.add(fromProtocolSpec(rawField, attachmentPoint));
            }
            return new DefaultTupleType(fields.build(), attachmentPoint);
          case ProtocolConstants.DataType.UDT:
            RawType.RawUdt rawUdt = (RawType.RawUdt) rawType;
            ImmutableList.Builder<CqlIdentifier> fieldNames = ImmutableList.builder();
            ImmutableList.Builder<DataType> fieldTypes = ImmutableList.builder();
            for (Map.Entry<String, RawType> entry : rawUdt.fields.entrySet()) {
              fieldNames.add(CqlIdentifier.fromInternal(entry.getKey()));
              fieldTypes.add(fromProtocolSpec(entry.getValue(), attachmentPoint));
            }
            return new DefaultUserDefinedType(
                CqlIdentifier.fromInternal(rawUdt.keyspace),
                CqlIdentifier.fromInternal(rawUdt.typeName),
                false,
                fieldNames.build(),
                fieldTypes.build(),
                attachmentPoint);
          default:
            throw new IllegalArgumentException("Unsupported type: " + rawType.id);
        }
      }
    }
  
    private static IntMap<DataType> PRIMITIVE_TYPES_BY_CODE =
        sortByProtocolCode(
            DataTypes.ASCII,
            DataTypes.BIGINT,
            DataTypes.BLOB,
            DataTypes.BOOLEAN,
            DataTypes.COUNTER,
            DataTypes.DECIMAL,
            DataTypes.DOUBLE,
            DataTypes.FLOAT,
            DataTypes.INT,
            DataTypes.TIMESTAMP,
            DataTypes.UUID,
            DataTypes.VARINT,
            DataTypes.TIMEUUID,
            DataTypes.INET,
            DataTypes.DATE,
            DataTypes.TEXT,
            DataTypes.TIME,
            DataTypes.SMALLINT,
            DataTypes.TINYINT,
            DataTypes.DURATION);
  
    private static IntMap<DataType> sortByProtocolCode(DataType... types) {
      IntMap.Builder<DataType> builder = IntMap.builder();
      for (DataType type : types) {
        builder.put(type.getProtocolCode(), type);
      }
      return builder.build();
    }
  }
  