Files
alfresco-community-repo/source/java/org/alfresco/repo/virtual/ref/GetParentReferenceMethod.java
2015-11-12 19:08:08 +00:00

85 lines
2.6 KiB
Java

/*
* Copyright (C) 2005-2015 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* 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 http://www.gnu.org/licenses/.
*/
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.<br>
* For root template path references a <code>null</code> will be returned upon
* execution.
*
* @see VirtualProtocol#replaceTemplatePath(Reference, String)
* @author Bogdan Horje
*/
public class GetParentReferenceMethod extends AbstractProtocolMethod<Reference>
{
@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();
}
}