Plugin to customize prop. during Service creation

Creates an entry point to customize properties of a Service
Component before its creation.

Change-Id: I102a70b37eec498dd9c6df009c38da57d0e5b17f
Issue-ID: SDC-3062
Signed-off-by: andre.schmid <andre.schmid@est.tech>

2 files changed, 67 insertions, 3 deletions

diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ServiceBusinessLogic.java b/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ServiceBusinessLogic.java
index bd29e9ab81..bdcc67c744 100644
--- a/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ServiceBusinessLogic.java
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/components/impl/ServiceBusinessLogic.java
@@ -27,6 +27,7 @@ import com.google.common.base.Strings;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import fj.data.Either;
+import java.util.Comparator;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
 import org.apache.commons.collections4.ListUtils;
@@ -115,6 +116,7 @@ import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
 import org.openecomp.sdc.be.model.operations.impl.InterfaceLifecycleOperation;
 import org.openecomp.sdc.be.model.operations.impl.UniqueIdBuilder;
 import org.openecomp.sdc.be.model.operations.utils.ComponentValidationUtils;
+import org.openecomp.sdc.be.plugins.ServiceCreationPlugin;
 import org.openecomp.sdc.tosca.datatypes.ToscaFunctions;
 import org.openecomp.sdc.be.resources.data.ComponentInstanceData;
 import org.openecomp.sdc.be.resources.data.ComponentMetadataData;
@@ -198,6 +200,7 @@ public class ServiceBusinessLogic extends ComponentBusinessLogic {
     private final NodeFilterValidator serviceFilterValidator;
 
     private ServiceTypeValidator serviceTypeValidator;
+    private List<ServiceCreationPlugin> serviceCreationPluginList;
 
     @Autowired
     public void setServiceTypeValidator(ServiceTypeValidator serviceTypeValidator) {
@@ -887,6 +890,7 @@ public class ServiceBusinessLogic extends ComponentBusinessLogic {
             createServiceApiArtifactsData(service, user);
             setToscaArtifactsPlaceHolders(service, user);
             generateAndAddInputsFromGenericTypeProperties(service, fetchAndSetDerivedFromGenericType(service));
+            beforeCreate(service);
 
             Either<Service, StorageOperationStatus> dataModelResponse = toscaOperationFacade.createToscaComponent(service);
 
@@ -909,6 +913,22 @@ public class ServiceBusinessLogic extends ComponentBusinessLogic {
         }
     }
 
+    private void beforeCreate(final Service service) {
+        if (CollectionUtils.isEmpty(serviceCreationPluginList)) {
+            return;
+        }
+        serviceCreationPluginList.stream()
+            .sorted(Comparator.comparingInt(ServiceCreationPlugin::getOrder))
+            .forEach(serviceCreationPlugin -> {
+                try {
+                    serviceCreationPlugin.beforeCreate(service);
+                } catch (final Exception e) {
+                    log.error("An error has occurred while running the serviceCreationPlugin '{}'",
+                        serviceCreationPlugin.getClass(), e);
+                }
+            });
+    }
+
     @SuppressWarnings("unchecked")
     private void createServiceApiArtifactsData(Service service, User user) {
         // create mandatory artifacts
@@ -2735,7 +2755,8 @@ public class ServiceBusinessLogic extends ComponentBusinessLogic {
         return Either.left(serviceFilterResult);
     }
 
-
-
-
+    @Autowired(required = false)
+    public void setServiceCreationPluginList(List<ServiceCreationPlugin> serviceCreationPluginList) {
+        this.serviceCreationPluginList = serviceCreationPluginList;
+    }
 }
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/plugins/ServiceCreationPlugin.java b/catalog-be/src/main/java/org/openecomp/sdc/be/plugins/ServiceCreationPlugin.java
new file mode 100644
index 0000000000..4981a33d26
--- /dev/null
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/plugins/ServiceCreationPlugin.java
@@ -0,0 +1,43 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 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.openecomp.sdc.be.plugins;
+
+import org.openecomp.sdc.be.model.Service;
+
+/**
+ * Plugin to the Service Component creation logic
+ */
+public interface ServiceCreationPlugin {
+
+    /**
+     * This method is called before the creation of the Service.
+     *
+     * @param service the service that is being created
+     */
+    void beforeCreate(final Service service);
+
+    /**
+     * Defines the order of execution of the plugin.
+     *
+     * @return a order
+     */
+    int getOrder();
+
+}