1 files changed, 168 insertions, 0 deletions
diff --git a/asdc-controller/src/main/java/org/openecomp/mso/asdc/util/NotificationLogging.java b/asdc-controller/src/main/java/org/openecomp/mso/asdc/util/NotificationLogging.java
new file mode 100644
index 0000000000..b45cf06c6f
--- /dev/null
+++ b/asdc-controller/src/main/java/org/openecomp/mso/asdc/util/NotificationLogging.java
@@ -0,0 +1,168 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OPENECOMP - MSO
+ * ================================================================================
+ * 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=========================================================
+ */
+
+
+package org.openecomp.mso.asdc.util;
+
+
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.lang.reflect.Proxy;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.openecomp.sdc.api.notification.INotificationData;
+
+
+public class NotificationLogging implements InvocationHandler {
+	
+	private static Map<Object, List<Method>> objectMethodsToLog = new HashMap<>();
+
+	private static InvocationHandler handler = new InvocationHandler() {
+		@Override
+		public Object invoke(Object arg0, Method arg1, Object[] arg2)
+				throws Throwable {
+			List<Method> methods = objectMethodsToLog.get(arg0);
+			if ((methods == null) || (methods.isEmpty())) {
+				// Do nothing for now...
+				return null;
+			}
+			methods.add(arg1);
+			return arg1.invoke(arg0, arg2);
+		}
+	};
+	
+	public static InvocationHandler getHandler() {
+		return handler;
+	}
+	
+	/**
+	 * 
+	 */
+	private NotificationLogging() {}
+	
+	private static final String[] GETTER_PREFIXES = { "get", "is" };
+	
+	public static String logNotification(INotificationData iNotif) {
+		if (iNotif == null) {
+			return "NULL";
+		}
+
+		Class<? extends INotificationData> clazz = iNotif.getClass();
+		
+		Method[] declaredMethods = clazz.getDeclaredMethods();
+		
+		if (declaredMethods == null || declaredMethods.length == 0) {
+			return "EMPTY"; // No declared methods in this class !!!
+		}
+		
+		StringBuffer buffer = new StringBuffer("ASDC Notification:");
+		buffer.append(System.lineSeparator());
+		
+		for (Method m : declaredMethods) {
+			if ((m != null) && isGetter(m)) {
+				for (String prefix : GETTER_PREFIXES) {
+					if (m.getName().startsWith(prefix)) {
+						buffer.append(m.getName().substring(prefix.length()));
+						break;
+					}
+				}
+				try {
+					buffer.append(testNull(m.invoke(iNotif, (Object[])null)));
+				} catch (IllegalAccessException | IllegalArgumentException
+						| InvocationTargetException e) {
+					buffer.append("UNREADABLE");
+				}
+				buffer.append(System.lineSeparator());
+			}
+		}
+		
+		return buffer.toString();
+	}
+	
+	private static final boolean isGetter(Method method) {
+
+		// Must start with a valid (and known) prefix
+		boolean prefixFound = false;
+		for (String prefix : GETTER_PREFIXES) {
+			if (method.getName().startsWith(prefix)) {
+				prefixFound = true;
+				break;
+			}
+		}
+		if (!prefixFound) {
+			return false;
+		}
+
+		// Must not take any input arguments
+		if (method.getParameterTypes().length != 0) {
+			return false;  
+		}
+		
+		// Must not have return type 'void'
+		if (void.class.equals(method.getReturnType())) {
+			return false;
+		}
+		
+		// Must be public
+		if (!Modifier.isPublic(method.getModifiers())) {
+			return false;
+		}
+		
+		return true;
+	}
+	
+	private static String testNull(Object object) {
+		if (object == null) {
+			return "NULL";
+		} else if (object instanceof Integer) {
+			return object.toString();
+		} else if (object instanceof String) {
+			return (String) object;
+		} else {
+			return "Type not recognized";
+		}
+	}
+	
+	private static void registerForLog(INotificationData objectToLog) {
+		INotificationData proxy = (INotificationData) Proxy.newProxyInstance(
+				INotificationData.class.getClassLoader(),
+				new Class[] { INotificationData.class },
+				NotificationLogging.getHandler());
+		objectMethodsToLog.put(proxy, new ArrayList<Method>());
+	}
+	
+	private static <T> void methodToLog(T methodCall) {
+		//
+	}
+
+	@Override
+	public Object invoke(Object proxy, Method method, Object[] args)
+			throws Throwable {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}