001/*
002 * (C) Copyright 2006-2010 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 */
019package org.nuxeo.connect.update.task.live.commands;
020
021import java.io.File;
022import java.util.Map;
023
024import org.apache.commons.logging.Log;
025import org.apache.commons.logging.LogFactory;
026import org.nuxeo.connect.update.PackageException;
027import org.nuxeo.connect.update.task.Command;
028import org.nuxeo.connect.update.task.Task;
029import org.nuxeo.connect.update.task.standalone.commands.UndeployPlaceholder;
030import org.nuxeo.runtime.api.Framework;
031import org.nuxeo.runtime.reload.ReloadService;
032import org.osgi.framework.BundleException;
033
034/**
035 * Undeploy a runtime bundle, or a directory containing runtime bundles.
036 * <p>
037 * The inverse of this command is Deploy.
038 *
039 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
040 */
041public class Undeploy extends UndeployPlaceholder {
042
043    private static final Log log = LogFactory.getLog(Undeploy.class);
044
045    public Undeploy() {
046        super();
047    }
048
049    public Undeploy(File file) {
050        super(file);
051    }
052
053    protected void undeployFile(File file, ReloadService service) throws PackageException {
054        String name = service.getOSGIBundleName(file);
055        if (name == null) {
056            // not an OSGI bundle => ignore
057            return;
058        }
059        try {
060            service.undeployBundle(file, true);
061        } catch (BundleException e) {
062            throw new PackageException("Failed to undeploy bundle " + file, e);
063        }
064    }
065
066    protected void undeployDirectory(File dir, ReloadService service) throws PackageException {
067        File[] files = dir.listFiles();
068        if (files != null) {
069            for (File fileInDir : files) {
070                undeployFile(fileInDir, service);
071            }
072        }
073    }
074
075    @Override
076    protected Command doRun(Task task, Map<String, String> prefs) throws PackageException {
077        if (!file.exists()) {
078            log.warn("Can't undeploy file " + file + ". File is missing.");
079            return null;
080        }
081        try {
082            ReloadService srv = Framework.getLocalService(ReloadService.class);
083            if (file.isDirectory()) {
084                undeployDirectory(file, srv);
085            } else {
086                undeployFile(file, srv);
087            }
088        } catch (PackageException e) {
089            // ignore uninstall -> this may break the entire chain. Usually
090            // uninstall is done only when rollbacking or uninstalling => force
091            // restart required
092            task.setRestartRequired(true);
093            throw new PackageException("Failed to undeploy bundle " + file, e);
094        }
095        return new Deploy(file);
096    }
097
098}