taverna-server-webapp/src/main/java/org/taverna/server/master/interfaces/SecurityContextFactory.java

/*
 */
package org.taverna.server.master.interfaces;
/*
 * 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.
 */

import java.io.Serializable;

import org.taverna.server.master.utils.UsernamePrincipal;

/**
 * How to create instances of a security context.
 * 
 * @author Donal Fellows
 */
public interface SecurityContextFactory extends Serializable {
	/**
	 * Creates a security context.
	 * 
	 * @param run
	 *            Handle to remote run. Allows the security context to know how
	 *            to apply itself to the workflow run.
	 * @param owner
	 *            The identity of the owner of the workflow run.
	 * @return The security context.
	 * @throws Exception
	 *             If anything goes wrong.
	 */
	TavernaSecurityContext create(TavernaRun run, UsernamePrincipal owner)
			throws Exception;
}