[policy/common.git] /

/*-
 * ============LICENSE_START=======================================================
 * policy-endpoints
 * ================================================================================
 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.common.endpoints.event.comm.bus.internal;

import java.net.MalformedURLException;
import java.util.List;
import java.util.Map;

import org.onap.policy.common.endpoints.event.comm.Topic;
import org.onap.policy.common.endpoints.event.comm.bus.DmaapTopicSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * This topic reader implementation specializes in reading messages over DMAAP topic and notifying
 * its listeners
 */
public class SingleThreadedDmaapTopicSource extends SingleThreadedBusTopicSource implements DmaapTopicSource, Runnable {

    private static Logger logger = LoggerFactory.getLogger(SingleThreadedDmaapTopicSource.class);


    protected final String userName;
    protected final String password;

    protected String environment = null;
    protected String aftEnvironment = null;
    protected String partner = null;
    protected String latitude = null;
    protected String longitude = null;

    protected Map<String, String> additionalProps = null;


    /**
     * 
     * @param servers DMaaP servers
     * @param topic DMaaP Topic to be monitored
     * @param apiKey DMaaP API Key (optional)
     * @param apiSecret DMaaP API Secret (optional)
     * @param consumerGroup DMaaP Reader Consumer Group
     * @param consumerInstance DMaaP Reader Instance
     * @param fetchTimeout DMaaP fetch timeout
     * @param fetchLimit DMaaP fetch limit
     * @param environment DME2 Environment
     * @param aftEnvironment DME2 AFT Environment
     * @param partner DME2 Partner
     * @param latitude DME2 Latitude
     * @param longitude DME2 Longitude
     * @param additionalProps Additional properties to pass to DME2
     * @param useHttps does connection use HTTPS?
     * @param allowSelfSignedCerts are self-signed certificates allow
     * 
     * @throws IllegalArgumentException An invalid parameter passed in
     */
    public SingleThreadedDmaapTopicSource(List<String> servers, String topic, String apiKey, String apiSecret,
            String userName, String password, String consumerGroup, String consumerInstance, int fetchTimeout,
            int fetchLimit, String environment, String aftEnvironment, String partner, String latitude,
            String longitude, Map<String, String> additionalProps, boolean useHttps, boolean allowSelfSignedCerts) {

        super(servers, topic, apiKey, apiSecret, consumerGroup, consumerInstance, fetchTimeout, fetchLimit, useHttps,
                allowSelfSignedCerts);

        this.userName = userName;
        this.password = password;

        this.environment = environment;
        this.aftEnvironment = aftEnvironment;
        this.partner = partner;

        this.latitude = latitude;
        this.longitude = longitude;

        this.additionalProps = additionalProps;
        try {
            this.init();
        } catch (Exception e) {
            logger.error("ERROR during init of topic {}", this.topic);
            throw new IllegalArgumentException(e);
        }
    }

    /**
     * 
     * @param servers DMaaP servers
     * @param topic DMaaP Topic to be monitored
     * @param apiKey DMaaP API Key (optional)
     * @param apiSecret DMaaP API Secret (optional)
     * @param consumerGroup DMaaP Reader Consumer Group
     * @param consumerInstance DMaaP Reader Instance
     * @param fetchTimeout DMaaP fetch timeout
     * @param fetchLimit DMaaP fetch limit
     * @param useHttps does connection use HTTPS?
     * @param allowSelfSignedCerts are self-signed certificates allow
     * @throws IllegalArgumentException An invalid parameter passed in
     */
    public SingleThreadedDmaapTopicSource(List<String> servers, String topic, String apiKey, String apiSecret,
            String userName, String password, String consumerGroup, String consumerInstance, int fetchTimeout,
            int fetchLimit, boolean useHttps, boolean allowSelfSignedCerts) {


        super(servers, topic, apiKey, apiSecret, consumerGroup, consumerInstance, fetchTimeout, fetchLimit, useHttps,
                allowSelfSignedCerts);

        this.userName = userName;
        this.password = password;

        try {
            this.init();
        } catch (Exception e) {
            logger.warn("dmaap-source: cannot create topic {} because of {}", topic, e.getMessage(), e);
            throw new IllegalArgumentException(e);
        }
    }


    /**
     * Initialize the Cambria or MR Client
     */
    @Override
    public void init() throws MalformedURLException {
        if (anyNullOrEmpty(this.userName, this.password)) {
            this.consumer = new BusConsumer.CambriaConsumerWrapper(this.servers, this.topic, this.apiKey,
                    this.apiSecret, this.consumerGroup, this.consumerInstance, this.fetchTimeout, this.fetchLimit,
                    this.useHttps, this.allowSelfSignedCerts);
        } else if (allNullOrEmpty(this.environment, this.aftEnvironment, this.latitude, this.longitude, this.partner)) {
            this.consumer = new BusConsumer.CambriaConsumerWrapper(this.servers, this.topic, this.apiKey,
                    this.apiSecret, this.userName, this.password, this.consumerGroup, this.consumerInstance,
                    this.fetchTimeout, this.fetchLimit, this.useHttps, this.allowSelfSignedCerts);
        } else {
            this.consumer = new BusConsumer.DmaapDmeConsumerWrapper(this.servers, this.topic, this.apiKey,
                    this.apiSecret, this.userName, this.password, this.consumerGroup, this.consumerInstance,
                    this.fetchTimeout, this.fetchLimit, this.environment, this.aftEnvironment, this.partner,
                    this.latitude, this.longitude, this.additionalProps, this.useHttps);
        }

        logger.info("{}: INITTED", this);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public CommInfrastructure getTopicCommInfrastructure() {
        return Topic.CommInfrastructure.DMAAP;
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();
        builder.append("SingleThreadedDmaapTopicSource [userName=").append(userName).append(", password=")
                .append((password == null || password.isEmpty()) ? "-" : password.length())
                .append(", getTopicCommInfrastructure()=").append(getTopicCommInfrastructure()).append(", toString()=")
                .append(super.toString()).append("]");
        return builder.toString();
    }


}