| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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. |
| */ |
| |
| package org.apache.skywalking.library.elasticsearch; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.Codec; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.RequestFactory; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.v6.V6RequestFactory; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.v6.codec.V6Codec; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.v7.V78RequestFactory; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.v7.V7RequestFactory; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.v7.codec.V78Codec; |
| import org.apache.skywalking.library.elasticsearch.requests.factory.v7.codec.V7Codec; |
| |
| public final class ElasticSearchVersion { |
| private final String distribution; |
| private final int major; |
| private final int minor; |
| |
| private final RequestFactory requestFactory; |
| private final Codec codec; |
| |
| private ElasticSearchVersion(final String distribution, final int major, final int minor) { |
| this.distribution = distribution; |
| this.major = major; |
| this.minor = minor; |
| |
| if (distribution.equalsIgnoreCase("OpenSearch")) { |
| requestFactory = new V78RequestFactory(this); |
| codec = V7Codec.INSTANCE; |
| return; |
| } |
| |
| if (distribution.equalsIgnoreCase("ElasticSearch")) { |
| if (major == 6) { // 6.x |
| requestFactory = new V6RequestFactory(this); |
| codec = V6Codec.INSTANCE; |
| return; |
| } |
| if (major == 7) { |
| if (minor < 8) { // [7.0, 7.8) |
| requestFactory = new V7RequestFactory(this); |
| codec = V7Codec.INSTANCE; |
| } else { // [7.8, 8.0) |
| requestFactory = new V78RequestFactory(this); |
| codec = V78Codec.INSTANCE; |
| } |
| return; |
| } |
| } |
| throw new UnsupportedOperationException("Unsupported version: " + this); |
| } |
| |
| @Override |
| public String toString() { |
| return distribution + " " + major + "." + minor; |
| } |
| |
| private static final Pattern REGEX = Pattern.compile("(\\d+)\\.(\\d+).*"); |
| |
| public static ElasticSearchVersion of(String distribution, String version) { |
| final Matcher matcher = REGEX.matcher(version); |
| if (!matcher.matches()) { |
| throw new IllegalArgumentException("Failed to parse version: " + version); |
| } |
| final int major = Integer.parseInt(matcher.group(1)); |
| final int minor = Integer.parseInt(matcher.group(2)); |
| return new ElasticSearchVersion(distribution, major, minor); |
| } |
| |
| /** |
| * Returns a {@link RequestFactory} that is responsible to compose correct requests according to |
| * the syntax of specific {@link ElasticSearchVersion}. |
| */ |
| public RequestFactory requestFactory() { |
| return requestFactory; |
| } |
| |
| /** |
| * Returns a {@link Codec} to encode the requests and decode the response. |
| */ |
| public Codec codec() { |
| return codec; |
| } |
| } |