com.hivemq.extensions.loader.ExtensionBuilderDependenciesImpl Maven / Gradle / Ivy

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/*
 * Copyright 2019-present HiveMQ GmbH
 *
 * 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.extensions.loader;

import com.google.common.collect.ImmutableMap;
import com.hivemq.extension.sdk.api.annotations.NotNull;
import com.hivemq.extension.sdk.api.services.builder.PublishBuilder;
import com.hivemq.extension.sdk.api.services.builder.RetainedPublishBuilder;
import com.hivemq.extension.sdk.api.services.builder.TopicPermissionBuilder;
import com.hivemq.extension.sdk.api.services.builder.TopicSubscriptionBuilder;
import com.hivemq.extension.sdk.api.services.builder.WillPublishBuilder;

import javax.inject.Inject;
import javax.inject.Provider;
import javax.inject.Singleton;
import java.util.function.Supplier;

@Singleton
public class ExtensionBuilderDependenciesImpl implements ExtensionBuilderDependencies {

    private final @NotNull Provider retainedPublishBuilderProvider;
    private final @NotNull Provider topicSubscriptionBuilderProvider;
    private final @NotNull Provider publishBuilderProvider;
    private final @NotNull Provider topicPermissionBuilderProvider;
    private final @NotNull Provider willPublishBuilderProvider;

    @Inject
    public ExtensionBuilderDependenciesImpl(
            final @NotNull Provider retainedPublishBuilderProvider,
            final @NotNull Provider topicSubscriptionBuilderProvider,
            final @NotNull Provider topicPermissionBuilderProvider,
            final @NotNull Provider publishBuilderProvider,
            final @NotNull Provider willPublishBuilderProvider) {
        this.retainedPublishBuilderProvider = retainedPublishBuilderProvider;
        this.topicSubscriptionBuilderProvider = topicSubscriptionBuilderProvider;
        this.topicPermissionBuilderProvider = topicPermissionBuilderProvider;
        this.publishBuilderProvider = publishBuilderProvider;
        this.willPublishBuilderProvider = willPublishBuilderProvider;
    }

    @NotNull
    public ImmutableMap> getDependenciesMap() {
        // classLoader is unused but prepared here for future use
        final ImmutableMap.Builder> builder = ImmutableMap.builder();

        builder.put(RetainedPublishBuilder.class.getCanonicalName(), retainedPublishBuilderProvider::get);
        builder.put(TopicSubscriptionBuilder.class.getCanonicalName(), topicSubscriptionBuilderProvider::get);
        builder.put(PublishBuilder.class.getCanonicalName(), publishBuilderProvider::get);
        builder.put(TopicPermissionBuilder.class.getCanonicalName(), topicPermissionBuilderProvider::get);
        builder.put(WillPublishBuilder.class.getCanonicalName(), willPublishBuilderProvider::get);

        return builder.build();
    }
}