001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Anahide Tchertchian
016 */
017package org.nuxeo.connect.update.task.live.commands;
018
019import java.io.File;
020
021import org.nuxeo.connect.update.task.Command;
022import org.nuxeo.connect.update.task.update.Rollback;
023import org.nuxeo.connect.update.task.update.RollbackOptions;
024import org.nuxeo.connect.update.task.update.Update;
025import org.nuxeo.connect.update.task.update.UpdateManager;
026
027/**
028 * Live version of the update command, that handle hot-reloading of the jar by deploying it to the runtime.
029 *
030 * @since 5.6
031 */
032public class UpdateAndDeploy extends Update {
033
034    // needed for deserialization
035    public UpdateAndDeploy() {
036        super();
037    }
038
039    @Override
040    protected Command getDeployCommand(UpdateManager updateManager, Command rollbackCommand) {
041        // file is the file to be deployed, so it's not in its final place.
042        // But deploy should use the final place => extract info from the
043        // rollback command...
044        if (rollbackCommand instanceof Rollback) {
045            // FIXME: only handle one file right now => deploy the file
046            // with options given by rollback, only when it's not a composite
047            // command
048            Rollback rollback = (Rollback) rollbackCommand;
049            RollbackOptions opt = rollback.getRollbackOptions();
050            File rollbackTarget = updateManager.getRollbackTarget(opt);
051            if (rollbackTarget != null) {
052                return new Deploy(rollbackTarget);
053            } else {
054                return null;
055            }
056        }
057        return new Deploy(file);
058    }
059
060}