io.atomix.cluster.messaging.impl.ProtocolMessage Maven / Gradle / Ivy
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/*
* Copyright 2017-present Open Networking Foundation
* Copyright © 2020 camunda services GmbH ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.atomix.cluster.messaging.impl;
/** Base class for internal messages. */
public abstract class ProtocolMessage {
private final long id;
private final byte[] payload;
protected ProtocolMessage(final long id, final byte[] payload) {
this.id = id;
this.payload = payload;
}
public abstract Type type();
public boolean isRequest() {
return type() == Type.REQUEST;
}
public boolean isReply() {
return type() == Type.REPLY;
}
public long id() {
return id;
}
public byte[] payload() {
return payload;
}
/** Internal message type. */
public enum Type {
REQUEST(1),
REPLY(2);
private final int id;
Type(final int id) {
this.id = id;
}
/**
* Returns the unique message type ID.
*
* @return the unique message type ID.
*/
public int id() {
return id;
}
/**
* Returns the message type enum associated with the given ID.
*
* @param id the type ID.
* @return the type enum for the given ID.
*/
public static Type forId(final int id) {
switch (id) {
case 1:
return REQUEST;
case 2:
return REPLY;
default:
throw new IllegalArgumentException("Unknown status ID " + id);
}
}
}
}