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DefaultWebsocketConfig.java
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DefaultWebsocketConfig.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.gateway.service.util.config.streaming;
import java.util.Objects;
import javax.annotation.concurrent.Immutable;
import org.eclipse.ditto.base.service.config.ThrottlingConfig;
import org.eclipse.ditto.internal.utils.config.ConfigWithFallback;
import org.eclipse.ditto.internal.utils.config.ScopedConfig;
import com.typesafe.config.Config;
/**
* This class is the default implementation of the web socket config.
*/
@Immutable
final class DefaultWebsocketConfig implements WebsocketConfig {
private final int subscriberBackpressureQueueSize;
private final int publisherBackpressureBufferSize;
private final double throttlingRejectionFactor;
private final ThrottlingConfig throttlingConfig;
private DefaultWebsocketConfig(final ScopedConfig scopedConfig) {
subscriberBackpressureQueueSize =
scopedConfig.getPositiveIntOrThrow(WebsocketConfigValue.SUBSCRIBER_BACKPRESSURE_QUEUE_SIZE);
publisherBackpressureBufferSize =
scopedConfig.getPositiveIntOrThrow(WebsocketConfigValue.PUBLISHER_BACKPRESSURE_BUFFER_SIZE);
throttlingRejectionFactor =
scopedConfig.getNonNegativeDoubleOrThrow(WebsocketConfigValue.THROTTLING_REJECTION_FACTOR);
throttlingConfig = ThrottlingConfig.of(scopedConfig);
}
/**
* Returns an instance of {@code DefaultWebSocketConfig} based on the settings of the specified Config.
*
* @param config is supposed to provide the settings of the web socket config at "websocket".
* @return the instance.
* @throws org.eclipse.ditto.internal.utils.config.DittoConfigError if {@code config} is invalid.
*/
public static WebsocketConfig of(final Config config) {
return new DefaultWebsocketConfig(
ConfigWithFallback.newInstance(config, CONFIG_PATH, WebsocketConfigValue.values()));
}
@Override
public int getSubscriberBackpressureQueueSize() {
return subscriberBackpressureQueueSize;
}
@Override
public int getPublisherBackpressureBufferSize() {
return publisherBackpressureBufferSize;
}
@Override
public double getThrottlingRejectionFactor() {
return throttlingRejectionFactor;
}
@Override
public ThrottlingConfig getThrottlingConfig() {
return throttlingConfig;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final DefaultWebsocketConfig that = (DefaultWebsocketConfig) o;
return subscriberBackpressureQueueSize == that.subscriberBackpressureQueueSize &&
publisherBackpressureBufferSize == that.publisherBackpressureBufferSize &&
Double.compare(throttlingRejectionFactor, that.throttlingRejectionFactor) == 0 &&
Objects.equals(throttlingConfig, that.throttlingConfig);
}
@Override
public int hashCode() {
return Objects.hash(subscriberBackpressureQueueSize, publisherBackpressureBufferSize,
throttlingRejectionFactor, throttlingConfig);
}
@Override
public String toString() {
return getClass().getSimpleName() + " [" +
"subscriberBackpressureQueueSize=" + subscriberBackpressureQueueSize +
", publisherBackpressureBufferSize=" + publisherBackpressureBufferSize +
", throttlingRejectionFactor=" + throttlingRejectionFactor +
", throttlingConfig=" + throttlingConfig +
"]";
}
}