org.eclipse.ditto.connectivity.service.messaging.persistence.strategies.commands.ResetConnectionMetricsStrategy Maven / Gradle / Ivy
/*
* 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.connectivity.service.messaging.persistence.strategies.commands;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import javax.annotation.Nullable;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.headers.WithDittoHeaders;
import org.eclipse.ditto.base.model.headers.entitytag.EntityTag;
import org.eclipse.ditto.connectivity.model.Connection;
import org.eclipse.ditto.connectivity.model.signals.commands.modify.ResetConnectionMetrics;
import org.eclipse.ditto.connectivity.model.signals.commands.modify.ResetConnectionMetricsResponse;
import org.eclipse.ditto.connectivity.service.messaging.persistence.stages.ConnectionAction;
import org.eclipse.ditto.connectivity.service.messaging.persistence.stages.ConnectionState;
/**
* This strategy handles the {@link ResetConnectionMetrics}
* command.
*/
final class ResetConnectionMetricsStrategy extends AbstractEphemeralStrategy {
ResetConnectionMetricsStrategy() {
super(ResetConnectionMetrics.class);
}
@Override
WithDittoHeaders getResponse(final ConnectionState state, final DittoHeaders headers) {
return ResetConnectionMetricsResponse.of(state.id(), headers);
}
@Override
List getActions() {
return Arrays.asList(ConnectionAction.BROADCAST_TO_CLIENT_ACTORS_IF_STARTED, ConnectionAction.SEND_RESPONSE);
}
@Override
public Optional previousEntityTag(final ResetConnectionMetrics command,
@Nullable final Connection previousEntity) {
return Optional.empty();
}
@Override
public Optional nextEntityTag(final ResetConnectionMetrics command,
@Nullable final Connection newEntity) {
return Optional.empty();
}
}