Package org.apache.karaf.cellar.bundle.shell

Source Code of org.apache.karaf.cellar.bundle.shell.UninstallBundleCommand

/*
* 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.bundle.shell;

import org.apache.felix.gogo.commands.Argument;
import org.apache.felix.gogo.commands.Command;
import org.apache.karaf.cellar.bundle.BundleState;
import org.apache.karaf.cellar.bundle.Constants;
import org.apache.karaf.cellar.bundle.RemoteBundleEvent;
import org.apache.karaf.cellar.core.Configurations;
import org.apache.karaf.cellar.core.Group;
import org.apache.karaf.cellar.core.event.EventProducer;
import org.apache.karaf.cellar.core.shell.CellarCommandSupport;
import org.osgi.framework.BundleEvent;

import java.util.Map;

@Command(scope = "cluster", name = "bundle-uninstall", description = "Uninstall a bundle assigned to a cluster group.")
public class UninstallBundleCommand extends CellarCommandSupport {

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

    @Argument(index = 1, name = "name", description = "The bundle symbolic name.", required = true, multiValued = false)
    String name;

    @Argument(index = 2, name = "version", description = "The bundle version.", required = true, multiValued = false)
    String version;

    @Override
    protected Object doExecute() throws Exception {
        Group group = groupManager.findGroupByName(groupName);

        if (group == null) {
            System.err.println("Cluster group " + groupName + " doesn't exist");
            return null;
        }

        // update the cluster map
        ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
        try {
            Map<String, BundleState> bundles = clusterManager.getMap(Constants.BUNDLE_MAP + Configurations.SEPARATOR + groupName);
            BundleState state = bundles.get(name + "/" + version);
            if (state == null) {
                System.err.println("Bundle " + name + "/" + version + " not found in cluster group " + groupName);
                return null;
            }
            bundles.remove(name + "/" + version);
        } finally {
            Thread.currentThread().setContextClassLoader(originalClassLoader);
        }

        // broadcast the event
        EventProducer producer = eventTransportFactory.getEventProducer(groupName, true);
        RemoteBundleEvent event = new RemoteBundleEvent(name, version, null, BundleEvent.UNINSTALLED);
        event.setForce(true);
        event.setSourceGroup(group);
        producer.produce(event);

        return null;
    }

}
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