org.janusgraph.diskstorage.es.ElasticMajorVersion Maven / Gradle / Ivy
// Copyright 2017 JanusGraph Authors
//
// 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 org.janusgraph.diskstorage.es;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public enum ElasticMajorVersion {
SIX(6),
SEVEN(7),
EIGHT(8),
;
static final Pattern PATTERN = Pattern.compile("(\\d+)\\.\\d+\\.\\d+.*");
final int value;
ElasticMajorVersion(int value) {
this.value = value;
}
public int getValue() {
return value;
}
public static ElasticMajorVersion parse(final String value) {
final Matcher m = value != null ? PATTERN.matcher(value) : null;
switch (m != null && m.find() ? Integer.parseInt(m.group(1)) : -1) {
case 6:
return ElasticMajorVersion.SIX;
case 7:
return ElasticMajorVersion.SEVEN;
case 8:
return ElasticMajorVersion.EIGHT;
default:
throw new IllegalArgumentException("Unsupported Elasticsearch server major version: " + value);
}
}
}