/**
* This file Copyright (c) 2005-2008 Aptana, Inc. This program is
* dual-licensed under both the Aptana Public License and the GNU General
* Public license. You may elect to use one or the other of these licenses.
*
* This program is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. Redistribution, except as permitted by whichever of
* the GPL or APL you select, is prohibited.
*
* 1. For the GPL license (GPL), you can redistribute and/or modify this
* program under the terms of the GNU General Public License,
* Version 3, as published by the Free Software Foundation. You should
* have received a copy of the GNU General Public License, Version 3 along
* with this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Aptana provides a special exception to allow redistribution of this file
* with certain other free and open source software ("FOSS") code and certain additional terms
* pursuant to Section 7 of the GPL. You may view the exception and these
* terms on the web at http://www.aptana.com/legal/gpl/.
*
* 2. For the Aptana Public License (APL), this program and the
* accompanying materials are made available under the terms of the APL
* v1.0 which accompanies this distribution, and is available at
* http://www.aptana.com/legal/apl/.
*
* You may view the GPL, Aptana's exception and additional terms, and the
* APL in the file titled license.html at the root of the corresponding
* plugin containing this source file.
*
* Any modifications to this file must keep this entire header intact.
*/
package com.aptana.ide.server.core;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
import com.aptana.ide.server.ServerCore;
/**
* Server file type handlers.
* @author Denis Denisenko
*/
public final class ServerFileTypeHandlers
{
/**
* Preview info.
* @author Denis Denisenko
*
*/
public static class PreviewInfo
{
public String serverID;
public String pathHeader;
public String serverTypeID;
}
/**
* Preview file type handler extension point name.
*/
private static final String EXTENSION_POINT_NAME = "previewFileTypeHandler"; //$NON-NLS-1$
/**
* Handler element name.
*/
private static final String HANDLER_ELEMENT_NAME = "handler"; //$NON-NLS-1$
/**
* Extension attribute name.
*/
private static final String EXTENSION_ATTRIBUTE_NAME = "extension"; //$NON-NLS-1$
/**
* ServerID attribute name.
*/
private static final String SERVER_ID_ATTRIBUTE_NAME = "serverID"; //$NON-NLS-1$
/**
* ServerTypeID attribute name.
*/
private static final String SERVER_TYPE_ID_ATTRIBUTE_NAME = "serverTypeID"; //$NON-NLS-1$
/**
* pathHeader attribute name.
*/
private static final String PATH_HEADER_ATTRIBUTE_NAME = "pathHeader"; //$NON-NLS-1$
/**
* Gets server ID and path header from extensions depending on file extension.
* @param fileExtension - file extension.
* @return server ID or null.
*/
public static PreviewInfo getPreviewInfoByExtension(String fileExtension)
{
if (fileExtension == null)
{
return null;
}
final IExtensionRegistry registry = Platform.getExtensionRegistry();
final IConfigurationElement[] elements = registry
.getConfigurationElementsFor(ServerCore.PLUGIN_ID,
EXTENSION_POINT_NAME);
if (elements == null || elements.length == 0)
{
return null;
}
for (final IConfigurationElement element : elements)
{
if (HANDLER_ELEMENT_NAME.equals(element.getName()))
{
String extension = element.getAttribute(EXTENSION_ATTRIBUTE_NAME);
if (!fileExtension.equals(extension))
{
continue;
}
String serverID = element.getAttribute(SERVER_ID_ATTRIBUTE_NAME);
String serverTypeID = element.getAttribute(SERVER_TYPE_ID_ATTRIBUTE_NAME);
String pathHeader = element.getAttribute(PATH_HEADER_ATTRIBUTE_NAME);
if (serverID != null)
{
PreviewInfo toReturn = new PreviewInfo();
toReturn.serverID = serverID;
toReturn.pathHeader = pathHeader;
toReturn.serverTypeID = serverTypeID;
return toReturn;
}
}
}
return null;
}
/**
* Gets server ID and path header from extensions depending on file extension got from the URL specified.
* @param url - url.
* @return server ID or null.
*/
public static PreviewInfo getPreviewInfoFromURL(String url)
{
String fileExtension = getFileExtensionFromURL(url);
return getPreviewInfoByExtension(fileExtension);
}
/**
* Gets file extension from URL.
* @param url - url.
* @return file extension or null.
*/
private static String getFileExtensionFromURL(String url)
{
int pointIndex = url.lastIndexOf("."); //$NON-NLS-1$
if (pointIndex == -1)
{
return null;
}
if (pointIndex == url.length() - 1)
{
return null;
}
StringBuffer result = new StringBuffer();
for (int i = pointIndex + 1; i < url.length(); i++)
{
char ch = url.charAt(i);
if (Character.isJavaIdentifierPart(ch))
{
result.append(ch);
}
else
{
return result.toString();
}
}
return result.toString();
}
/**
* ServerFileTypeHandlers private constructor.
*/
private ServerFileTypeHandlers()
{
}
}