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/*
* ============LICENSE_START==========================================
* ===================================================================
* Copyright (c) 2017 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============================================
*
* ECOMP and OpenECOMP are trademarks
* and service marks of AT&T Intellectual Property.
*
*/
package org.openecomp.mso.cloud.authentication;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.openecomp.mso.cloud.CloudIdentity;
import com.woorea.openstack.keystone.model.Authentication;
/**
* This factory manages all the wrappers associated to authentication types.
*
*/
public final class AuthenticationMethodFactory {
private static Map<String, AuthenticationWrapper> authWrappers = new ConcurrentHashMap<>();
/**
*
*/
private AuthenticationMethodFactory() {}
/**
* Function to be called by classes implementing the abstract {@link AuthenticationWrapper#register(String, Class)}.
*/
static final synchronized void register(String authenticationType, Class<? extends AuthenticationWrapper> wrapperClass) throws InstantiationException, IllegalAccessException {
if ((authenticationType == null) || ("".equals(authenticationType))) {
throw new IllegalArgumentException("Authentication Type to register cannot be null or an empty name string, provided value is " + authenticationType + ".");
}
if (wrapperClass == null) {
throw new IllegalArgumentException("Wrapper Class to register for Authentication cannot be null");
}
if (!authWrappers.containsKey(authenticationType)) {
authWrappers.put(authenticationType, wrapperClass.newInstance());
}
}
public static final synchronized Authentication getAuthenticationFor(CloudIdentity cloudIdentity) throws InstantiationException, IllegalAccessException, ClassNotFoundException, IOException, URISyntaxException {
if (cloudIdentity == null) {
throw new IllegalArgumentException("Cloud identity cannot be null");
}
if ((cloudIdentity.getIdentityAuthenticationType() == null) || ("".equals(cloudIdentity.getIdentityAuthenticationType().toString()))) {
throw new IllegalArgumentException("Cloud identity authentication type cannot be null or empty, provided value is " + cloudIdentity.getIdentityAuthenticationType() + ".");
}
String authenticationType = cloudIdentity.getIdentityAuthenticationType().toString();
if (authWrappers.containsKey(authenticationType)) {
return authWrappers.get(authenticationType).getAuthentication(cloudIdentity);
} else {
throw new IllegalArgumentException("Provided authentication type (" + authenticationType + ") is not implemented by any wrapper.");
}
}
}
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