org.smartdeveloperhub.harvesters.it.frontend.publisher.PublisherFactory.java Source code

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Here is the source code for org.smartdeveloperhub.harvesters.it.frontend.publisher.PublisherFactory.java

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/**
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   This file is part of the Smart Developer Hub Project:
 *     http://www.smartdeveloperhub.org/
 *
 *   Center for Open Middleware
 *     http://www.centeropenmiddleware.com/
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Copyright (C) 2015-2016 Center for Open Middleware.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   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.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Artifact    : org.smartdeveloperhub.harvesters.it.frontend:it-frontend-core:0.1.0
 *   Bundle      : it-frontend-core-0.1.0.jar
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 */
package org.smartdeveloperhub.harvesters.it.frontend.publisher;

import java.io.IOException;
import java.net.URI;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.smartdeveloperhub.harvesters.it.backend.Notifications;
import org.smartdeveloperhub.harvesters.it.frontend.BackendController;
import org.smartdeveloperhub.harvesters.it.notification.CollectorConfiguration;

import com.google.common.collect.ImmutableList;

public final class PublisherFactory {

    private static final Logger LOGGER = LoggerFactory.getLogger(PublisherFactory.class);

    private PublisherFactory() {
    }

    public static Publisher createPublisher(final BackendController controller) throws IOException {
        return new DynamicPublisher(controller,
                toConfiguration(controller.getTarget(), controller.getCollector().getNotifications()));
    }

    private static List<CollectorConfiguration> toConfiguration(final URI instance,
            final Notifications notifications) {
        final ImmutableList.Builder<CollectorConfiguration> builder = ImmutableList.builder();
        if (notifications != null) {
            final CollectorConfiguration result = new CollectorConfiguration();
            result.setInstance(instance.toString());
            result.setBrokerHost(notifications.getBrokerHost());
            result.setBrokerPort(notifications.getBrokerPort());
            result.setVirtualHost(notifications.getVirtualHost());
            result.setExchangeName(notifications.getExchangeName());
            LOGGER.debug("Using collector configuration {}", result);
            builder.add(result);
        }
        return builder.build();
    }

}