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.cmdline.IntrospectionException;
023 import org.crsh.cmdline.ParameterDescriptor;
024 import org.crsh.cmdline.completers.AbstractPathCompleter;
025 import org.crsh.cmdline.spi.Completer;
026 import org.crsh.cmdline.spi.ValueCompletion;
027 import org.crsh.command.CRaSHCommand;
028
029 import javax.jcr.Node;
030 import javax.jcr.NodeIterator;
031 import javax.jcr.PathNotFoundException;
032 import javax.jcr.RepositoryException;
033 import javax.jcr.Session;
034 import java.util.ArrayList;
035 import java.util.Collection;
036 import java.util.List;
037
038 public abstract class JCRCommand extends CRaSHCommand implements Completer {
039
040 protected JCRCommand() throws IntrospectionException {
041 }
042
043 public ValueCompletion complete(ParameterDescriptor<?> parameter, String prefix) throws Exception {
044 if (parameter.getJavaValueType() == Path.class) {
045
046 final Path path = (Path)getProperty("currentPath");
047 final Session session = (Session)getProperty("session");
048
049 //
050 if (session != null) {
051
052 AbstractPathCompleter<Node> pc = new AbstractPathCompleter<Node>() {
053 @Override
054 protected String getCurrentPath() throws Exception {
055 return path != null ? path.getString() : "/";
056 }
057
058 @Override
059 protected Node getPath(String path) throws Exception {
060 try {
061 return (Node)session.getItem(path);
062 }
063 catch (RepositoryException e) {
064 return null;
065 }
066 }
067
068 @Override
069 protected boolean exists(Node path) throws Exception {
070 return path != null;
071 }
072
073 @Override
074 protected boolean isDirectory(Node path) throws Exception {
075 return true;
076 }
077
078 @Override
079 protected boolean isFile(Node path) throws Exception {
080 return false;
081 }
082
083 @Override
084 protected Collection<Node> getChilren(Node path) throws Exception {
085 List<Node> children = new ArrayList<Node>();
086 for (NodeIterator i = path.getNodes();i.hasNext();) {
087 Node child = i.nextNode();
088 children.add(child);
089 }
090 return children;
091 }
092
093 @Override
094 protected String getName(Node path) throws Exception {
095 return path.getName();
096 }
097 };
098
099 //
100 return pc.complete(parameter, prefix);
101 }
102 }
103
104 //
105 return ValueCompletion.create();
106 }
107 }