/* * 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.raptor.util; import static com.google.common.base.Preconditions.checkArgument; import static java.lang.String.format; import static java.util.Locale.ENGLISH; public final class MetadataUtil { private MetadataUtil() {} public static String checkSchemaName(String schemaName) { return checkLowerCase(schemaName, "schemaName"); } public static String checkTableName(String tableName) { return checkLowerCase(tableName, "tableName"); } private static String checkLowerCase(String value, String name) { if (value == null) { throw new NullPointerException(format("%s is null", name)); } checkArgument(value.equals(value.toLowerCase(ENGLISH)), "%s is not lowercase", name); return value; } }