SampleNodeUtil.java

/*
 * 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.sql.planner.optimizations;

import com.facebook.presto.sql.planner.plan.SampleNode.Type;
import com.facebook.presto.sql.tree.SampledRelation;

public final class SampleNodeUtil
{
    private SampleNodeUtil() {}

    public static Type fromType(SampledRelation.Type sampleType)
    {
        switch (sampleType) {
            case BERNOULLI:
                return Type.BERNOULLI;
            case SYSTEM:
                return Type.SYSTEM;
            default:
                throw new UnsupportedOperationException("Unsupported sample type: " + sampleType);
        }
    }
}