/*
 * Licensed to Crate under one or more contributor license agreements.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial
 * agreement.
 */

package io.crate.expression.reference.sys.check.cluster;

import org.apache.lucene.util.Version;

import javax.annotation.Nullable;
import java.text.ParseException;

final class LuceneVersionChecks {

    static boolean isUpgradeRequired(@Nullable String versionStr) {
        if (versionStr == null || versionStr.isEmpty()) {
            return false;
        }
        try {
            return !Version.parse(versionStr).onOrAfter(Version.LATEST);
        } catch (ParseException e) {
            throw new IllegalArgumentException("'" + versionStr + "' is not a valid Lucene version");
        }
    }
}
