/*
* Copyright (c) 2002-2009 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.shell.neo.apps;
import java.rmi.RemoteException;
import java.util.List;
import org.neo4j.shell.AppCommandParser;
import org.neo4j.shell.Output;
import org.neo4j.shell.Session;
import org.neo4j.shell.ShellException;
/**
* Mimics the POSIX application with the same name, i.e. prints the current
* working directory "walked by" the "cd" application.
*/
public class Pwd extends NeoApp
{
@Override
public String getDescription()
{
return "Prints path to current node or relatioship";
}
@Override
protected String exec( AppCommandParser parser, Session session,
Output out ) throws ShellException, RemoteException
{
NodeOrRelationship current = this.getCurrent( session );
out.println( "Current is " +
getDisplayName( getNeoServer(), session, current ) );
String path = stringifyPath( Cd.readPaths( session ), session );
if ( path.length() > 0 )
{
out.println( path );
}
return null;
}
private String stringifyPath( List<TypedId> pathIds, Session session )
throws ShellException
{
if ( pathIds.isEmpty() )
{
return "";
}
StringBuilder path = new StringBuilder();
for ( TypedId id : pathIds )
{
path.append(
getDisplayName( getNeoServer(), session, id ) ).append( "-->" );
}
return path.append( getDisplayNameForCurrent( session ) ).toString();
}
}