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StateConfig.java
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StateConfig.java
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/*
* Copyright 2022 Yelp Inc.
*
* 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.yelp.nrtsearch.server.config;
import java.util.Objects;
/** Configuration class for state managment. */
public class StateConfig {
public static final String CONFIG_PREFIX = "stateConfig.";
public enum StateBackendType {
LOCAL,
REMOTE
}
private final StateBackendType backendType;
/**
* Create instance from provided configuration reader.
*
* @param configReader config reader
* @return class instance
*/
public static StateConfig fromConfig(YamlConfigReader configReader) {
Objects.requireNonNull(configReader);
StateBackendType backendType =
StateBackendType.valueOf(configReader.getString(CONFIG_PREFIX + "backendType", "LOCAL"));
return new StateConfig(backendType);
}
/**
* Constructor.
*
* @param backendType type of backend to used for storing/loading state
*/
public StateConfig(StateBackendType backendType) {
Objects.requireNonNull(backendType);
this.backendType = backendType;
}
/** Get the type of backend that should be used for storing/loading server state. */
public StateBackendType getBackendType() {
return backendType;
}
}