/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.xml.security.stax.securityToken;
import org.apache.xml.security.binding.xmldsig.KeyInfoType;
import org.apache.xml.security.exceptions.XMLSecurityException;
import org.apache.xml.security.stax.config.ConfigurationProperties;
import org.apache.xml.security.stax.ext.InboundSecurityContext;
import org.apache.xml.security.stax.ext.XMLSecurityProperties;
import org.apache.xml.security.utils.ClassLoaderUtils;
/**
* Factory to create SecurityToken Objects from keys in XML
*
* @author $Author: coheigea $
* @version $Revision: 1584089 $ $Date: 2014-04-02 17:46:35 +0100 (Wed, 02 Apr 2014) $
*/
public abstract class SecurityTokenFactory {
private static SecurityTokenFactory securityTokenFactory = null;
public static synchronized SecurityTokenFactory getInstance() throws XMLSecurityException {
if (securityTokenFactory == null) {
String stf = ConfigurationProperties.getProperty("securityTokenFactory");
if (stf == null) {
throw new XMLSecurityException("algorithm.ClassDoesNotExist", "null");
}
Class<?> callingClass = ConfigurationProperties.getCallingClass();
if (callingClass == null) {
callingClass = SecurityTokenFactory.class;
}
try {
@SuppressWarnings("unchecked")
Class<SecurityTokenFactory> securityTokenFactoryClass =
(Class<SecurityTokenFactory>) ClassLoaderUtils.loadClass(stf, callingClass);
securityTokenFactory = securityTokenFactoryClass.newInstance();
} catch (ClassNotFoundException e) {
throw new XMLSecurityException("algorithm.ClassDoesNotExist", new Object[]{stf}, e);
} catch (InstantiationException e) {
throw new XMLSecurityException("algorithm.ClassDoesNotExist", new Object[]{stf}, e);
} catch (IllegalAccessException e) {
throw new XMLSecurityException("algorithm.ClassDoesNotExist", new Object[]{stf}, e);
}
}
return securityTokenFactory;
}
public abstract InboundSecurityToken getSecurityToken(
KeyInfoType keyInfoType, SecurityTokenConstants.KeyUsage keyUsage,
XMLSecurityProperties securityProperties, InboundSecurityContext inboundSecurityContext)
throws XMLSecurityException;
}