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• MqttConnAck.java

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com.hivemq.client.internal.mqtt.message.connect.connack.MqttConnAck Maven / Gradle / Ivy

/*
 * Copyright 2018 dc-square and the HiveMQ MQTT Client Project
 *
 * 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 com.hivemq.client.internal.mqtt.message.connect.connack;

import com.hivemq.client.annotations.Immutable;
import com.hivemq.client.internal.mqtt.datatypes.MqttClientIdentifierImpl;
import com.hivemq.client.internal.mqtt.datatypes.MqttUserPropertiesImpl;
import com.hivemq.client.internal.mqtt.datatypes.MqttUtf8StringImpl;
import com.hivemq.client.internal.mqtt.message.MqttMessageWithUserProperties;
import com.hivemq.client.internal.util.StringUtil;
import com.hivemq.client.mqtt.datatypes.MqttClientIdentifier;
import com.hivemq.client.mqtt.datatypes.MqttUtf8String;
import com.hivemq.client.mqtt.mqtt5.message.auth.Mqtt5EnhancedAuth;
import com.hivemq.client.mqtt.mqtt5.message.connect.connack.Mqtt5ConnAck;
import com.hivemq.client.mqtt.mqtt5.message.connect.connack.Mqtt5ConnAckReasonCode;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.Objects;
import java.util.Optional;
import java.util.OptionalInt;
import java.util.OptionalLong;

/**
 * @author Silvio Giebl
 */
@Immutable
public class MqttConnAck extends MqttMessageWithUserProperties.WithReason.WithCode
        implements Mqtt5ConnAck {

    public static final long SESSION_EXPIRY_INTERVAL_FROM_CONNECT = -1;
    public static final int KEEP_ALIVE_FROM_CONNECT = -1;

    private final boolean sessionPresent;
    private final long sessionExpiryInterval;
    private final int serverKeepAlive;
    private final @Nullable MqttClientIdentifierImpl assignedClientIdentifier;
    private final @Nullable Mqtt5EnhancedAuth enhancedAuth;
    private final @NotNull MqttConnAckRestrictions restrictions;
    private final @Nullable MqttUtf8StringImpl responseInformation;
    private final @Nullable MqttUtf8StringImpl serverReference;

    public MqttConnAck(
            final @NotNull Mqtt5ConnAckReasonCode reasonCode, final boolean sessionPresent,
            final long sessionExpiryInterval, final int serverKeepAlive,
            final @Nullable MqttClientIdentifierImpl assignedClientIdentifier,
            final @Nullable Mqtt5EnhancedAuth enhancedAuth, final @NotNull MqttConnAckRestrictions restrictions,
            final @Nullable MqttUtf8StringImpl responseInformation, final @Nullable MqttUtf8StringImpl serverReference,
            final @Nullable MqttUtf8StringImpl reasonString, final @NotNull MqttUserPropertiesImpl userProperties) {

        super(reasonCode, reasonString, userProperties);
        this.sessionPresent = sessionPresent;
        this.sessionExpiryInterval = sessionExpiryInterval;
        this.serverKeepAlive = serverKeepAlive;
        this.assignedClientIdentifier = assignedClientIdentifier;
        this.enhancedAuth = enhancedAuth;
        this.restrictions = restrictions;
        this.responseInformation = responseInformation;
        this.serverReference = serverReference;
    }

    @Override
    public boolean isSessionPresent() {
        return sessionPresent;
    }

    @Override
    public @NotNull OptionalLong getSessionExpiryInterval() {
        return (sessionExpiryInterval == SESSION_EXPIRY_INTERVAL_FROM_CONNECT) ? OptionalLong.empty() :
                OptionalLong.of(sessionExpiryInterval);
    }

    public long getRawSessionExpiryInterval() {
        return sessionExpiryInterval;
    }

    @Override
    public @NotNull OptionalInt getServerKeepAlive() {
        return (serverKeepAlive == KEEP_ALIVE_FROM_CONNECT) ? OptionalInt.empty() : OptionalInt.of(serverKeepAlive);
    }

    public int getRawServerKeepAlive() {
        return serverKeepAlive;
    }

    @Override
    public @NotNull Optional getAssignedClientIdentifier() {
        return Optional.ofNullable(assignedClientIdentifier);
    }

    public @Nullable MqttClientIdentifierImpl getRawAssignedClientIdentifier() {
        return assignedClientIdentifier;
    }

    @Override
    public @NotNull Optional getEnhancedAuth() {
        return Optional.ofNullable(enhancedAuth);
    }

    public @Nullable Mqtt5EnhancedAuth getRawEnhancedAuth() {
        return enhancedAuth;
    }

    @Override
    public @NotNull MqttConnAckRestrictions getRestrictions() {
        return restrictions;
    }

    @Override
    public @NotNull Optional getResponseInformation() {
        return Optional.ofNullable(responseInformation);
    }

    @Override
    public @NotNull Optional getServerReference() {
        return Optional.ofNullable(serverReference);
    }

    @Override
    protected @NotNull String toAttributeString() {
        return "reasonCode=" + getReasonCode() + ", sessionPresent=" + sessionPresent +
                ((sessionExpiryInterval == SESSION_EXPIRY_INTERVAL_FROM_CONNECT) ? "" :
                        ", sessionExpiryInterval=" + sessionExpiryInterval) +
                ((serverKeepAlive == SESSION_EXPIRY_INTERVAL_FROM_CONNECT) ? "" :
                        ", serverKeepAlive=" + serverKeepAlive) +
                ((assignedClientIdentifier == null) ? "" : ", assignedClientIdentifier=" + assignedClientIdentifier) +
                ((enhancedAuth == null) ? "" : ", enhancedAuth=" + enhancedAuth) +
                ((restrictions == MqttConnAckRestrictions.DEFAULT) ? "" : ", restrictions=" + restrictions) +
                ((responseInformation == null) ? "" : ", responseInformation=" + responseInformation) +
                ((serverReference == null) ? "" : ", serverReference=" + serverReference) +
                StringUtil.prepend(", ", super.toAttributeString());
    }

    @Override
    public @NotNull String toString() {
        return "MqttConnAck{" + toAttributeString() + '}';
    }

    @Override
    public boolean equals(final @Nullable Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof MqttConnAck)) {
            return false;
        }
        final MqttConnAck that = (MqttConnAck) o;

        return partialEquals(that) && (sessionPresent == that.sessionPresent) &&
                (sessionExpiryInterval == that.sessionExpiryInterval) && (serverKeepAlive == that.serverKeepAlive) &&
                Objects.equals(assignedClientIdentifier, that.assignedClientIdentifier) &&
                Objects.equals(enhancedAuth, that.enhancedAuth) && restrictions.equals(that.restrictions) &&
                Objects.equals(responseInformation, that.responseInformation) &&
                Objects.equals(serverReference, that.serverReference);
    }

    @Override
    public int hashCode() {
        int result = partialHashCode();
        result = 31 * result + Boolean.hashCode(sessionPresent);
        result = 31 * result + Long.hashCode(sessionExpiryInterval);
        result = 31 * result + serverKeepAlive;
        result = 31 * result + Objects.hashCode(assignedClientIdentifier);
        result = 31 * result + Objects.hashCode(enhancedAuth);
        result = 31 * result + restrictions.hashCode();
        result = 31 * result + Objects.hashCode(responseInformation);
        result = 31 * result + Objects.hashCode(serverReference);
        return result;
    }
}