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ThingsAggregatorConfig.java
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ThingsAggregatorConfig.java
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/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.things.service.aggregation;
import java.time.Duration;
import javax.annotation.concurrent.Immutable;
import org.eclipse.ditto.internal.utils.config.KnownConfigValue;
/**
* Provides the configuration settings of things aggregation.
*/
@Immutable
public interface ThingsAggregatorConfig {
/**
* Returns the timeout how long the {@code ThingsAggregatorActor} should wait for a single retrieve thing.
*
* @return the timeout.
*/
Duration getSingleRetrieveThingTimeout();
/**
* Returns the maximum parallelism, that is how many {@code RetrieveThing} commands can be "in flight" at the
* same time towards the "things" service.
*
* @return the maximum parallelism.
*/
int getMaxParallelism();
/**
* An enumeration of the known config path expressions and their associated default values for
* {@code ThingsAggregatorConfig}.
*/
enum ThingsAggregatorConfigValue implements KnownConfigValue {
/**
* The timeout how long the {@code ThingsAggregatorActor} should wait for a single retrieve thing.
*/
SINGLE_RETRIEVE_THING_TIMEOUT("single-retrieve-thing-timeout", Duration.ofSeconds(30L)),
/**
* The maximum parallelism.
*/
MAX_PARALLELISM("max-parallelism", 20);
private final String path;
private final Object defaultValue;
ThingsAggregatorConfigValue(final String thePath, final Object theDefaultValue) {
path = thePath;
defaultValue = theDefaultValue;
}
@Override
public String getConfigPath() {
return path;
}
@Override
public Object getDefaultValue() {
return defaultValue;
}
}
}