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ImmutableWithSender.java
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ImmutableWithSender.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.internal.utils.pekko.controlflow;
import java.util.Objects;
import javax.annotation.concurrent.Immutable;
import org.apache.pekko.actor.ActorRef;
/**
* Immutable implementation of {@link WithSender}.
*
* @param <T> type of message.
*/
@Immutable
final class ImmutableWithSender<T> implements WithSender<T> {
private final T message;
private final ActorRef sender;
ImmutableWithSender(final T message, final ActorRef sender) {
this.message = message;
this.sender = sender;
}
@Override
public T getMessage() {
return message;
}
@Override
public ActorRef getSender() {
return sender;
}
@Override
public WithSender<T> withMessage(final T newMessage) {
return new ImmutableWithSender<>(newMessage, sender);
}
@Override
public boolean equals(final Object o) {
if (o instanceof ImmutableWithSender) {
final ImmutableWithSender<?> that = (ImmutableWithSender<?>) o;
return Objects.equals(sender, that.sender) && Objects.equals(message, that.message);
} else {
return false;
}
}
@Override
public int hashCode() {
return Objects.hash(message, sender);
}
@Override
public String toString() {
return getClass().getSimpleName() + " [message=" + message +
", sender=" + sender +
"]";
}
}