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.standalone.commands;
020
021import java.util.Map;
022
023import org.nuxeo.connect.update.PackageException;
024import org.nuxeo.connect.update.ValidationStatus;
025import org.nuxeo.connect.update.task.Command;
026import org.nuxeo.connect.update.task.Task;
027import org.nuxeo.connect.update.xml.XmlWriter;
028import org.w3c.dom.Element;
029
030/**
031 * Flush all nuxeo caches.
032 *
033 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
034 */
035public class FlushPlaceholder extends PostInstallCommand {
036
037    public static final String ID = "flush";
038
039    public FlushPlaceholder() {
040        super(ID);
041    }
042
043    @Override
044    protected void doValidate(Task task, ValidationStatus status) throws PackageException {
045        // nothing to do
046    }
047
048    @Override
049    protected Command doRun(Task task, Map<String, String> prefs) throws PackageException {
050        // standalone mode: nothing to do
051        return new FlushPlaceholder();
052    }
053
054    public void readFrom(Element element) throws PackageException {
055    }
056
057    public void writeTo(XmlWriter writer) {
058        writer.start(ID);
059        writer.end();
060    }
061
062}