001 /*
002 * Copyright (C) 2012 eXo Platform SAS.
003 *
004 * This is free software; you can redistribute it and/or modify it
005 * under the terms of the GNU Lesser General Public License as
006 * published by the Free Software Foundation; either version 2.1 of
007 * the License, or (at your option) any later version.
008 *
009 * This software 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 * You should have received a copy of the GNU Lesser General Public
015 * License along with this software; if not, write to the Free
016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018 */
019
020 package org.crsh.jcr.command;
021
022 import org.crsh.cli.impl.descriptor.IntrospectionException;
023 import org.crsh.cli.descriptor.ParameterDescriptor;
024 import org.crsh.cli.completers.AbstractPathCompleter;
025 import org.crsh.cli.spi.Completer;
026 import org.crsh.cli.spi.Completion;
027 import org.crsh.command.CRaSHCommand;
028
029 import javax.jcr.Node;
030 import javax.jcr.NodeIterator;
031 import javax.jcr.RepositoryException;
032 import javax.jcr.Session;
033 import java.util.ArrayList;
034 import java.util.Collection;
035 import java.util.List;
036
037 public abstract class JCRCommand extends CRaSHCommand implements PathCompleter {
038
039 protected JCRCommand() throws IntrospectionException {
040 }
041
042 public Completion complete(ParameterDescriptor parameter, String prefix) throws Exception {
043 if (parameter.getCompleterType() == PathCompleter.class) {
044
045 final Path path = (Path)getProperty("currentPath");
046 final Session session = (Session)getProperty("session");
047
048 //
049 if (session != null) {
050
051 AbstractPathCompleter<Node> pc = new AbstractPathCompleter<Node>() {
052 @Override
053 protected String getCurrentPath() throws Exception {
054 return path != null ? path.getValue() : "/";
055 }
056
057 @Override
058 protected Node getPath(String path) throws Exception {
059 try {
060 return (Node)session.getItem(path);
061 }
062 catch (RepositoryException e) {
063 return null;
064 }
065 }
066
067 @Override
068 protected boolean exists(Node path) throws Exception {
069 return path != null;
070 }
071
072 @Override
073 protected boolean isDirectory(Node path) throws Exception {
074 return true;
075 }
076
077 @Override
078 protected boolean isFile(Node path) throws Exception {
079 return false;
080 }
081
082 @Override
083 protected Collection<Node> getChilren(Node path) throws Exception {
084 List<Node> children = new ArrayList<Node>();
085 for (NodeIterator i = path.getNodes();i.hasNext();) {
086 Node child = i.nextNode();
087 children.add(child);
088 }
089 return children;
090 }
091
092 @Override
093 protected String getName(Node path) throws Exception {
094 return path.getName();
095 }
096 };
097
098 //
099 return pc.complete(parameter, prefix);
100 }
101 }
102
103 //
104 return Completion.create();
105 }
106 }