photark-security/src/main/java/org/apache/photark/security/authorization/AccessList.java

/*
 * 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.photark.security.authorization;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.oasisopen.sca.annotation.Remotable;


/**
 * Immutable AccessList Object responsible for storing permissions of the user.
 * 
 */

public class AccessList implements Serializable {
	/**
	 * 
	 */
	private static final long serialVersionUID = 6849853208649971131L;
	/** */
	private String userId="";
	/** */
	private List<String> permissions= new ArrayList<String>();
	

	/**
	 * 
	 * @param userId String
	 * 
	 * @param permissions  List<String>
	 */
	public AccessList(String userId, List<String> permissions){ 
		 //TODO	this.permissions = Collections.unmodifiableList(permissions);
		this.userId = userId;
	}
	
	public AccessList(){ 
			
	}
	
	/**
	 * 
	 * @return List<String>
	 */
	public List<String> getPermissions(){
		return permissions;
	}

	
	/**
	 * 
	 * @return String
	 */
	public String getUserId(){
		return userId;
	}
	
	
	/**
	 * 
	 */
	public boolean equals(Object obj){
		if(!(obj instanceof AccessList))
			return false;
		
		AccessList accessList = (AccessList)obj;
		if(accessList.userId.equals(userId) && isPermissionsEqual(accessList.permissions))
			return true;
				
		return false;	
	}
	
	
	/**
	 * 
	 * @param permissionList List<String>
	 * 
	 * @return boolean
	 */
	private boolean isPermissionsEqual(List<String> permissionList){
		if(permissionList != null && permissions != null){
			if(permissionList.size() == permissions.size()){
				for(String permission : permissionList){
					if(!permissions.contains(permission))
					return false;
				}
				return true;
			}
			else
				return false;
		}
		return false;
	}
	
	
	/**
	 * 
	 */
	public int hashCode(){
		int hash = 1;
		hash = hash * 7 + userId == null ? 0 : userId.hashCode();
		for(String permission : permissions){
			hash = hash * 7 + (permission == null ? 0 : permission.hashCode());
		}
		return hash;
	}
}