/*
 * Licensed 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.facebook.presto.type;

import com.facebook.presto.spi.type.Type;
import com.facebook.presto.spi.type.TypeManager;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.FromStringDeserializer;

import javax.inject.Inject;

import static com.facebook.presto.spi.type.TypeSignature.parseTypeSignature;
import static com.google.common.base.Preconditions.checkArgument;
import static java.util.Objects.requireNonNull;

public final class TypeDeserializer
        extends FromStringDeserializer<Type>
{
    private final TypeManager typeManager;

    @Inject
    public TypeDeserializer(TypeManager typeManager)
    {
        super(Type.class);
        this.typeManager = requireNonNull(typeManager, "typeManager is null");
    }

    @Override
    protected Type _deserialize(String value, DeserializationContext context)
    {
        Type type = typeManager.getType(parseTypeSignature(value));
        checkArgument(type != null, "Unknown type %s", value);
        return type;
    }
}
