/*
* Copyright (C) 2013 Glyptodon LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.glyptodon.guacamole.net.basic.properties;
import java.lang.reflect.InvocationTargetException;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.net.auth.AuthenticationProvider;
import org.glyptodon.guacamole.net.basic.GuacamoleClassLoader;
import org.glyptodon.guacamole.properties.GuacamoleProperty;
/**
* A GuacamoleProperty whose value is the name of a class to use to
* authenticate users. This class must implement AuthenticationProvider.
*
* @author Michael Jumper
*/
public abstract class AuthenticationProviderProperty implements GuacamoleProperty<AuthenticationProvider> {
@Override
public AuthenticationProvider parseValue(String authProviderClassName) throws GuacamoleException {
// If no property provided, return null.
if (authProviderClassName == null)
return null;
// Get auth provider instance
try {
Object obj = GuacamoleClassLoader.getInstance().loadClass(authProviderClassName)
.getConstructor().newInstance();
if (!(obj instanceof AuthenticationProvider))
throw new GuacamoleException("Specified authentication provider class is not a AuthenticationProvider.");
return (AuthenticationProvider) obj;
}
catch (ClassNotFoundException e) {
throw new GuacamoleException("Authentication provider class not found", e);
}
catch (NoSuchMethodException e) {
throw new GuacamoleException("Default constructor for authentication provider not present", e);
}
catch (SecurityException e) {
throw new GuacamoleException("Creation of authentication provider disallowed; check your security settings", e);
}
catch (InstantiationException e) {
throw new GuacamoleException("Unable to instantiate authentication provider", e);
}
catch (IllegalAccessException e) {
throw new GuacamoleException("Unable to access default constructor of authentication provider", e);
}
catch (InvocationTargetException e) {
throw new GuacamoleException("Internal error in constructor of authentication provider", e.getTargetException());
}
}
}