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/**
 * ============LICENSE_START====================================================
 * org.onap.aaf
 * ===========================================================================
 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
 * ===========================================================================
 * Licensed 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.
 * ============LICENSE_END====================================================
 *
 */
package org.onap.aaf.cadi.shiro;

import java.security.Principal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.Permission;
import org.onap.aaf.cadi.Access;
import org.onap.aaf.cadi.Access.Level;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
 * We treat "roles" and "permissions" in a similar way for first pass.
 * 
 * @author JonathanGathman
 *
 */
public class AAFAuthorizationInfo implements AuthorizationInfo {
	private static final long serialVersionUID = -4805388954462426018L;
	
	final static Logger logger =  LoggerFactory.getLogger(AAFAuthorizationInfo.class);
	
	private Access access;
	private Principal bait;
	private List<org.onap.aaf.cadi.Permission> pond;
	private ArrayList<String> sPerms;
	private ArrayList<Permission> oPerms;

	public AAFAuthorizationInfo(Access access, Principal bait, List<org.onap.aaf.cadi.Permission> pond) {
		this.access = access;
		this.bait = bait;
		this.pond = pond;
		sPerms=null;
		oPerms=null;

	}
	
	public Principal principal() {
		return bait;
	}
	
	@Override
	public Collection<Permission> getObjectPermissions() {
//		access.log(Level.DEBUG, "AAFAuthorizationInfo.getObjectPermissions");
		synchronized(bait) {
			if(oPerms == null) {
				oPerms = new ArrayList<Permission>(); 
				for(final org.onap.aaf.cadi.Permission p : pond) {
					oPerms.add(new AAFShiroPermission(p));
				}
			}
		}
		return oPerms;
	}

	@Override
	public Collection<String> getRoles() {
		// Until we decide to make Roles available, tie into String based permissions.
		return getStringPermissions();
	}

	@Override
	public Collection<String> getStringPermissions() {
		synchronized(bait) {
			if(sPerms == null) {
				sPerms = new ArrayList<String>(); 
				for(org.onap.aaf.cadi.Permission p : pond) {
					sPerms.add(p.getKey().replace("|",":"));
//					System.out.println("Replacing | to :" + p.getKey().replace("|",":")); 
				}
			}
		}
		return sPerms;
	}

}