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StreamConfig.java
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StreamConfig.java
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/*
* Copyright (c) 2019 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.thingsearch.service.common.config;
import java.time.Duration;
import javax.annotation.concurrent.Immutable;
import org.eclipse.ditto.internal.utils.cacheloaders.config.AskWithRetryConfig;
import org.eclipse.ditto.internal.utils.config.KnownConfigValue;
/**
* Provides streaming configuration settings of the Search service.
*/
@Immutable
public interface StreamConfig {
/**
* Returns the maximum length of an array for it to be indexed.
*
* @return the length.
*/
int getMaxArraySize();
/**
* Returns the minimal delay between event dumps.
*
* @return the interval.
*/
Duration getWriteInterval();
/**
* @return the duration before the update actor is stopped after receiving a ThingDeleted event
*/
Duration getThingDeletionTimeout();
/**
* @return whether sending acks is enabled
*/
boolean isSendingAcksEnabled();
/**
* Returns the configuration for the used "ask with retry" pattern in the search updater for retrieval of things and
* policies.
*
* @return the "ask with retry" pattern config for retrieval of things and policies.
*/
AskWithRetryConfig getAskWithRetryConfig();
/**
* Returns the configuration settings for the retrieval of things and policy-enforcers.
*
* @return the config.
*/
StreamStageConfig getRetrievalConfig();
/**
* Returns the configuration settings for writing into the persistence.
*
* @return the config.
*/
PersistenceStreamConfig getPersistenceConfig();
/**
* Returns the configuration settings of the policy enforcers to cache.
*
* @return the config.
*/
StreamCacheConfig getPolicyCacheConfig();
/**
* Returns the configuration settings of the things to cache.
*
* @return the config.
*/
StreamCacheConfig getThingCacheConfig();
/**
* An enumeration of known config path expressions and their associated default values for {@code StreamConfig}.
*/
enum StreamConfigValue implements KnownConfigValue {
/**
* The maximum length of an array for it to be indexed.
*/
MAX_ARRAY_SIZE("max-array-size", 25),
/**
* The minimal delay between event dumps.
*/
WRITE_INTERVAL("write-interval", Duration.ofSeconds(1L)),
/**
* The delay before the updater actor is stopped after receiving a ThingDeleted event.
*/
THING_DELETION_TIMEOUT("thing-deletion-timeout", Duration.ofMinutes(5)),
/**
* Whether sending acks from ThingUpdaterActor is enabled.
*/
SENDING_ACKS_ENABLED("sending-acks-enabled", true);
private final String configPath;
private final Object defaultValue;
StreamConfigValue(final String configPath, final Object defaultValue) {
this.configPath = configPath;
this.defaultValue = defaultValue;
}
@Override
public Object getDefaultValue() {
return defaultValue;
}
@Override
public String getConfigPath() {
return configPath;
}
}
}