pnf sw upgrade csit

[integration/csit.git] / plans / usecases / pnf-sw-upgrade / so / simulator / aai-simulator / src / main / java / org / onap / so / aaisimulator / utils / ShallowBeanCopy.java

diff --git a/plans/usecases/pnf-sw-upgrade/so/simulator/aai-simulator/src/main/java/org/onap/so/aaisimulator/utils/ShallowBeanCopy.java b/plans/usecases/pnf-sw-upgrade/so/simulator/aai-simulator/src/main/java/org/onap/so/aaisimulator/utils/ShallowBeanCopy.java
new file mode 100755 (executable)
index 0000000..3285e01
--- /dev/null
+++ b/plans/usecases/pnf-sw-upgrade/so/simulator/aai-simulator/src/main/java/org/onap/so/aaisimulator/utils/ShallowBeanCopy.java
@@ -0,0 +1,89 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.aaisimulator.utils;
+
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Optional;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Waqas Ikram (waqas.ikram@est.tech)
+ *
+ */
+public class ShallowBeanCopy {
+    private static final Logger LOGGER = LoggerFactory.getLogger(ShallowBeanCopy.class);
+
+    private ShallowBeanCopy() {}
+
+    public static void copy(final Object from, final Object to) throws Exception {
+        final Map<String, Method> fromMethods = getMethods(from);
+        final Map<String, Method> toMethods = getMethods(to);
+
+        for (final Entry<String, Method> entry : fromMethods.entrySet()) {
+            final String methodName = entry.getKey();
+            final Method fromMethod = entry.getValue();
+
+            final Optional<Method> optional = getSetMethod(to, fromMethod);
+            if (optional.isPresent()) {
+                final Method toGetMethod = toMethods.get(methodName);
+                final Method toMethod = optional.get();
+                final Object toValue = fromMethod.invoke(from);
+
+                final Object fromValue = toGetMethod.invoke(to);
+                if (toValue != null && !toValue.equals(fromValue)) {
+                    LOGGER.info("Changing {} value from: {} to: {}", methodName, fromValue, toValue);
+                    toMethod.invoke(to, toValue);
+                }
+            }
+        }
+    }
+
+
+    private static Optional<Method> getSetMethod(final Object to, final Method fromMethod) {
+        final String name = fromMethod.getName().replaceFirst("get|is", "set");
+        final Class<?> returnType = fromMethod.getReturnType();
+        try {
+            return Optional.of(to.getClass().getMethod(name, returnType));
+        } catch (final NoSuchMethodException noSuchMethodException) {
+        }
+        return Optional.empty();
+    }
+
+    private static Map<String, Method> getMethods(final Object object) {
+        final Map<String, Method> methodsFound = new HashMap<>();
+        final Method[] methods = object.getClass().getMethods();
+
+        for (final Method method : methods) {
+            if (method.getName().startsWith("get") || method.getName().startsWith("is")) {
+                final String name = method.getName().replaceFirst("get|is", "");
+
+                methodsFound.put(name, method);
+            }
+        }
+
+        return methodsFound;
+
+    }
+
+}