1 files changed, 104 insertions, 0 deletions
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/mapping/MappingBase.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/mapping/MappingBase.java
new file mode 100644
index 0000000000..7382ef72eb
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/mapping/MappingBase.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.sdcrests.mapping;
+
+/**
+ * Base class for all mapping classes. Mapping classes will perform data mapping from source object
+ * to target object Base class provides following<br>
+ * <ol>
+ * <li>provides life cycle of mapping class , first mapSimpleProperties is called and then
+ * mapComplexProperties is called.</li>
+ * <li>methods mapSimpleProperties and mapComplexProperties with default implementation,
+ * these should be overridden by concrete mapping classes for writing mapping logic.</li>
+ * </ol>
+ */
+
+public abstract class MappingBase<S, T> {
+
+  /**
+   * Method is called for starting mapping from source object to target object method sets context
+   * in the thread locale and than calls mapSimpleProperties and mapComplexProperties respectively.
+   *
+   * @param source : source object for mapping
+   * @param clazz  : target <code>Class</code> for mapping
+   * @return <code>T</code> - instance of type <code>T</code>
+   */
+
+  public final T applyMapping(final S source, Class<T> clazz) {
+    T target = (T) instantiateTarget(clazz);
+    if (source == null || target == null) {
+      //TODO: what what?
+    } else {
+      preMapping(source, target);
+      doMapping(source, target);
+      postMapping(source, target);
+
+    }
+    return target;
+
+  }
+
+  /**
+   * This method is called before the <code>doMapping</code> method.
+   */
+
+  public void preMapping(final S source, T target) {
+  }
+
+  /**
+   * The actual method that does the mapping between the <code>source</code>
+   * to <code>target</code> objects.
+   * This method is being called automatically as part of the mapper class.
+   * This method must be override (it is abstract) by the mapper class.
+   *
+   * @param source - the source object.
+   * @param target - the target object.
+   */
+
+  public abstract void doMapping(final S source, T target);
+
+  /**
+   * This method is called after the <code>doMapping</code> method.
+   */
+
+  public void postMapping(final S source, T target) {
+  }
+
+  /**
+   * Creates the instance of the input class.
+   *
+   * @return <code>Object</code>
+   */
+
+  private Object instantiateTarget(final Class<?> clazz) {
+    Object object = null;
+    try {
+      object = clazz.newInstance();
+
+    } catch (InstantiationException | IllegalAccessException e0) {
+      //Do nothing
+    }
+    return object;
+
+  }
+
+}
+