• Home
• com.hivemq
• hivemq-mqtt-client
• 1.1.2
• source code
• Mqtt3ConnectViewBuilder.java

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

com.hivemq.client.internal.mqtt.message.connect.mqtt3.Mqtt3ConnectViewBuilder 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.mqtt3;

import com.hivemq.client.internal.mqtt.message.auth.MqttSimpleAuth;
import com.hivemq.client.internal.mqtt.message.auth.mqtt3.Mqtt3SimpleAuthView;
import com.hivemq.client.internal.mqtt.message.auth.mqtt3.Mqtt3SimpleAuthViewBuilder;
import com.hivemq.client.internal.mqtt.message.connect.MqttConnect;
import com.hivemq.client.internal.mqtt.message.publish.MqttWillPublish;
import com.hivemq.client.internal.mqtt.message.publish.mqtt3.Mqtt3PublishView;
import com.hivemq.client.internal.mqtt.message.publish.mqtt3.Mqtt3PublishViewBuilder;
import com.hivemq.client.internal.util.Checks;
import com.hivemq.client.mqtt.mqtt3.message.auth.Mqtt3SimpleAuth;
import com.hivemq.client.mqtt.mqtt3.message.connect.Mqtt3ConnectBuilder;
import com.hivemq.client.mqtt.mqtt3.message.publish.Mqtt3Publish;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.function.Function;

/**
 * @author Silvio Giebl
 */
public abstract class Mqtt3ConnectViewBuilder> {

    private int keepAliveSeconds = Mqtt3ConnectView.DEFAULT_KEEP_ALIVE;
    private boolean cleanSession = Mqtt3ConnectView.DEFAULT_CLEAN_SESSION;
    private @Nullable MqttSimpleAuth simpleAuth;
    private @Nullable MqttWillPublish willPublish;

    Mqtt3ConnectViewBuilder() {}

    Mqtt3ConnectViewBuilder(final @NotNull Mqtt3ConnectView connect) {
        final MqttConnect delegate = connect.getDelegate();
        keepAliveSeconds = delegate.getKeepAlive();
        cleanSession = delegate.isCleanStart();
        simpleAuth = delegate.getRawSimpleAuth();
        willPublish = delegate.getRawWillPublish();
    }

    abstract @NotNull B self();

    public @NotNull B keepAlive(final int keepAlive) {
        this.keepAliveSeconds = Checks.unsignedShort(keepAlive, "Keep alive");
        return self();
    }

    public @NotNull B noKeepAlive() {
        this.keepAliveSeconds = Mqtt3ConnectView.NO_KEEP_ALIVE;
        return self();
    }

    public @NotNull B cleanSession(final boolean cleanSession) {
        this.cleanSession = cleanSession;
        return self();
    }

    public @NotNull B simpleAuth(final @Nullable Mqtt3SimpleAuth simpleAuth) {
        this.simpleAuth = (simpleAuth == null) ? null :
                Checks.notImplemented(simpleAuth, Mqtt3SimpleAuthView.class, "Simple auth").getDelegate();
        return self();
    }

    public @NotNull Mqtt3SimpleAuthViewBuilder.Nested simpleAuth() {
        return new Mqtt3SimpleAuthViewBuilder.Nested<>(this::simpleAuth);
    }

    public @NotNull B willPublish(final @Nullable Mqtt3Publish willPublish) {
        this.willPublish = (willPublish == null) ? null :
                Checks.notImplemented(willPublish, Mqtt3PublishView.class, "Will publish").getDelegate().asWill();
        return self();
    }

    public @NotNull Mqtt3PublishViewBuilder.WillNested willPublish() {
        return new Mqtt3PublishViewBuilder.WillNested<>(this::willPublish);
    }

    public @NotNull Mqtt3ConnectView build() {
        return Mqtt3ConnectView.of(keepAliveSeconds, cleanSession, simpleAuth, willPublish);
    }

    public static class Default extends Mqtt3ConnectViewBuilder implements Mqtt3ConnectBuilder {

        public Default() {}

        Default(final @NotNull Mqtt3ConnectView connect) {
            super(connect);
        }

        @Override
        @NotNull Default self() {
            return this;
        }
    }

    public static class Nested
 extends Mqtt3ConnectViewBuilder> implements Mqtt3ConnectBuilder.Nested
 {

        private final @NotNull Function parentConsumer;

        public Nested(final @NotNull Function parentConsumer) {
            this.parentConsumer = parentConsumer;
        }

        public Nested(
                final @NotNull Mqtt3ConnectView connect,
                final @NotNull Function parentConsumer) {

            super(connect);
            this.parentConsumer = parentConsumer;
        }

        @Override
        @NotNull Nested
 self() {
            return this;
        }

        @Override
        public @NotNull P applyConnect() {
            return parentConsumer.apply(build());
        }
    }

    public static class Send
 extends Mqtt3ConnectViewBuilder> implements Mqtt3ConnectBuilder.Send
 {

        private final @NotNull Function parentConsumer;

        public Send(final @NotNull Function parentConsumer) {
            this.parentConsumer = parentConsumer;
        }

        @Override
        @NotNull Send
 self() {
            return this;
        }

        @Override
        public @NotNull P send() {
            return parentConsumer.apply(build());
        }
    }
}