/*
* #%L
* Alfresco Repository
* %%
* Copyright (C) 2005 - 2016 Alfresco Software Limited
* %%
* This file is part of the Alfresco software.
* If the software was purchased under a paid Alfresco license, the terms of
* the paid license agreement will prevail. Otherwise, the software is
* provided under the following open source license terms:
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see .
* #L%
*/
package org.alfresco.repo.virtual.ref;
/**
* Returns a virtual parent reference upon execution by subtracting the last
* template path element from of the given reference.
* For root template path references a null
will be returned upon
* execution.
*
* @see VirtualProtocol#replaceTemplatePath(Reference, String)
* @author Bogdan Horje
*/
public class GetParentReferenceMethod extends AbstractProtocolMethod
{
@Override
public Reference execute(VirtualProtocol virtualProtocol, Reference reference) throws ProtocolMethodException
{
String path = virtualProtocol.getTemplatePath(reference);
if (path.trim().endsWith(PATH_SEPARATOR))
{
int trailingPathIndex = path.lastIndexOf(PATH_SEPARATOR);
if (trailingPathIndex == 0)
{
return null;
}
else
{
path = path.substring(0,
trailingPathIndex);
}
}
int index = path.lastIndexOf(PATH_SEPARATOR);
if (index < 0)
{
return null;
}
else
{
String parentPath = path.substring(0,
index);
if (parentPath.isEmpty())
{
if (path.length() > 1)
{
parentPath = PATH_SEPARATOR;
}
else
{
return null;
}
}
return virtualProtocol.replaceTemplatePath(reference,
parentPath);
}
}
@Override
public Reference execute(NodeProtocol protocol, Reference reference) throws ProtocolMethodException
{
return ((ReferenceParameter) reference.getParameters().get(0)).getValue();
}
}