SubscriptionsCommand.java

/**
 * Copyright (c) Codice Foundation
 * <p>
 * This is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 * <p>
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details. A copy of the GNU Lesser General Public License
 * is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 */
package ddf.catalog.pubsub.command;

import java.util.HashMap;
import java.util.Map;

import org.apache.karaf.shell.console.OsgiCommandSupport;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import ddf.catalog.event.Subscription;

public class SubscriptionsCommand extends OsgiCommandSupport {

    public static final String NAMESPACE = "subscriptions";

    public static final String SERVICE_PID = "ddf.catalog.event.Subscription";

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

    @Override
    protected Object doExecute() throws Exception {

        return null;
    }

    protected Map<String, ServiceReference<Subscription>> getSubscriptions(String id,
            boolean ldapFilter) throws InvalidSyntaxException {
        Map<String, ServiceReference<Subscription>> subscriptionIds = new HashMap<>();

        String subscriptionIdFilter = null;
        if (ldapFilter) {
            subscriptionIdFilter = id;
        } else if (id != null) {
            subscriptionIdFilter = "(subscription-id=" + id + ")";
        }
        LOGGER.debug("subscriptionIdFilter = {}", subscriptionIdFilter);
        ServiceReference[] serviceReferences = bundleContext.getServiceReferences(SERVICE_PID,
                subscriptionIdFilter);

        if (serviceReferences == null || serviceReferences.length == 0) {
            LOGGER.debug("Found no service references for {}", SERVICE_PID);
        } else {
            LOGGER.debug("Found {} service references for {}",
                    serviceReferences.length,
                    SERVICE_PID);

            for (ServiceReference ref : serviceReferences) {
                String[] propertyKeys = ref.getPropertyKeys();
                if (propertyKeys != null) {
                    for (String key : propertyKeys) {
                        LOGGER.debug("key = {}", key);
                    }
                    String subscriptionId = (String) ref.getProperty("subscription-id");
                    LOGGER.debug("subscriptionId = {}", subscriptionId);
                    subscriptionIds.put(subscriptionId, ref);
                } else {
                    LOGGER.debug("propertyKeys = NULL");
                }
            }
        }

        return subscriptionIds;
    }

}