1 files changed, 79 insertions, 0 deletions
diff --git a/adapters/mso-adapter-utils/src/main/java/org/openecomp/mso/cloud/authentication/AuthenticationMethodFactory.java b/adapters/mso-adapter-utils/src/main/java/org/openecomp/mso/cloud/authentication/AuthenticationMethodFactory.java
new file mode 100644
index 0000000..feaafd3
--- /dev/null
+++ b/adapters/mso-adapter-utils/src/main/java/org/openecomp/mso/cloud/authentication/AuthenticationMethodFactory.java
@@ -0,0 +1,79 @@
+/*
+ * ============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.");
+		}
+	}
+}