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// Copyright (C) 2018 The Android Open Source Project
//
// 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.google.gerrit.elasticsearch;
import com.google.common.base.Joiner;
import java.util.regex.Pattern;
public enum ElasticVersion {
V7_6("7.6.*"),
V7_7("7.7.*"),
V7_8("7.8.*");
private final String version;
private final Pattern pattern;
ElasticVersion(String version) {
this.version = version;
this.pattern = Pattern.compile(version);
}
public static class UnsupportedVersion extends ElasticException {
private static final long serialVersionUID = 1L;
UnsupportedVersion(String version) {
super(
String.format(
"Unsupported version: [%s]. Supported versions: %s", version, supportedVersions()));
}
}
/**
* Convert a version String to an ElasticVersion if supported.
*
* @param version for which to return an ElasticVersion
* @return the corresponding ElasticVersion if supported
*/
public static ElasticVersion forVersion(String version) {
for (ElasticVersion value : ElasticVersion.values()) {
if (value.pattern.matcher(version).matches()) {
return value;
}
}
throw new UnsupportedVersion(version);
}
public static String supportedVersions() {
return Joiner.on(", ").join(ElasticVersion.values());
}
@Override
public String toString() {
return version;
}
}