com.google.gerrit.index.IndexType Maven / Gradle / Ivy
// Copyright (C) 2013 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.index;
import com.google.common.collect.ImmutableSet;
import com.google.gerrit.common.Nullable;
/**
* Index types supported by the secondary index.
*
* The explicitly known index types are Lucene (the default) and Elasticsearch.
*
*
The third supported index type is any other type String value, deemed as custom. This is for
* configuring index types that are internal or not to be disclosed. Supporting custom index types
* allows to not break that case upon core implementation changes.
*/
public class IndexType {
private static final String LUCENE = "lucene";
private static final String ELASTICSEARCH = "elasticsearch";
private final String type;
public IndexType(@Nullable String type) {
this.type = type == null ? getDefault() : type.toLowerCase();
}
public static String getDefault() {
return LUCENE;
}
public static ImmutableSet getKnownTypes() {
return ImmutableSet.of(LUCENE, ELASTICSEARCH);
}
public boolean isLucene() {
return type.equals(LUCENE);
}
public boolean isElasticsearch() {
return type.equals(ELASTICSEARCH);
}
@Override
public String toString() {
return type;
}
}