Package org.apache.karaf.cellar.obr.shell

Source Code of org.apache.karaf.cellar.obr.shell.ObrRemoveUrlCommand

/*
* 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 org.apache.karaf.cellar.obr.shell;

import org.apache.felix.bundlerepository.Repository;
import org.apache.felix.bundlerepository.Resource;
import org.apache.felix.gogo.commands.Argument;
import org.apache.felix.gogo.commands.Command;
import org.apache.karaf.cellar.core.Configurations;
import org.apache.karaf.cellar.core.Group;
import org.apache.karaf.cellar.core.control.SwitchStatus;
import org.apache.karaf.cellar.core.event.EventProducer;
import org.apache.karaf.cellar.core.event.EventType;
import org.apache.karaf.cellar.obr.Constants;
import org.apache.karaf.cellar.obr.ObrBundleInfo;
import org.apache.karaf.cellar.obr.ObrUrlEvent;

import java.util.Set;

@Command(scope = "cluster", name = "obr-remove-url", description = "Remove a repository URL from the distributed OBR service assigned to a cluster group.")
public class ObrRemoveUrlCommand extends ObrCommandSupport {

    @Argument(index = 0, name = "group", description = "The cluster group name.", required = true, multiValued = false)
    String groupName;

    @Argument(index = 1, name = "url", description = "The repository URL to add in the OBR service.", required = true, multiValued = false)
    String url;

    private EventProducer eventProducer;

    public Object doExecute() throws Exception {
        // check if the group exists
        Group group = groupManager.findGroupByName(groupName);
        if (group == null) {
            System.err.println("Cluster group " + groupName + " doesn't exist");
            return null;
        }

        // check if the producer is ON
        if (eventProducer.getSwitch().getStatus().equals(SwitchStatus.OFF)) {
            System.err.println("Cluster event producer is OFF for this node");
            return null;
        }

        // check if the URL is allowed
        if (!isAllowed(group, Constants.URLS_CONFIG_CATEGORY, url, EventType.OUTBOUND)) {
            System.err.println("OBR URL " + url + " is blocked outbound");
            return null;
        }

        // remove URL from the distributed map
        Set<String> urls = clusterManager.getSet(Constants.URLS_DISTRIBUTED_SET_NAME + Configurations.SEPARATOR + groupName);
        urls.remove(url);
        // remove bundles from the distributed map
        Set<ObrBundleInfo> bundles = clusterManager.getSet(Constants.BUNDLES_DISTRIBUTED_SET_NAME + Configurations.SEPARATOR + groupName);
        synchronized (obrService) {
            Repository repository = obrService.addRepository(url);
            Resource[] resources = repository.getResources();
            for (Resource resource : resources) {
                ObrBundleInfo info = new ObrBundleInfo(resource.getPresentationName(), resource.getSymbolicName(), resource.getVersion().toString());
                bundles.remove(info);
            }
            obrService.removeRepository(url);
        }

        // create an event and produce it
        ObrUrlEvent event = new ObrUrlEvent(url, Constants.URL_REMOVE_EVENT_TYPE);
        event.setSourceGroup(group);
        eventProducer.produce(event);

        return null;
    }

    public EventProducer getEventProducer() {
        return eventProducer;
    }

    public void setEventProducer(EventProducer eventProducer) {
        this.eventProducer = eventProducer;
    }

}
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