Backend extensibility

Issue-ID: SDC-2761
Change-Id: I9287e0255fdda8da61cafc4b761190c8992b9aff
Signed-off-by: MichaelMorris <michael.morris@est.tech>

3 files changed, 54 insertions, 0 deletions

diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/plugins/CsarEntryGenerator.java b/catalog-be/src/main/java/org/openecomp/sdc/be/plugins/CsarEntryGenerator.java
new file mode 100644
index 0000000000..856d53f7cd
--- /dev/null
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/plugins/CsarEntryGenerator.java
@@ -0,0 +1,39 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 Nordix Foundation. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.openecomp.sdc.be.plugins;
+
+import java.util.Map;
+
+import org.openecomp.sdc.be.model.Component;
+
+/**
+ * Implementations of this interface shall generate entries to be included in a csar.
+ */
+public interface CsarEntryGenerator {
+	
+	/**
+	 * Generate entries to be included in a csar.
+	 * 
+	 * @param component the component the csar is based on
+	 * @return Map of name to contents for entries to be included in the csar
+	 */
+	Map<String, byte[]> generateCsarEntries(final Component component);
+
+}
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/tosca/CsarUtils.java b/catalog-be/src/main/java/org/openecomp/sdc/be/tosca/CsarUtils.java
index 80bee80d06..2721fda2c5 100644
--- a/catalog-be/src/main/java/org/openecomp/sdc/be/tosca/CsarUtils.java
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/tosca/CsarUtils.java
@@ -51,6 +51,7 @@ import org.openecomp.sdc.be.model.jsonjanusgraph.operations.ToscaOperationFacade
 import org.openecomp.sdc.be.model.jsonjanusgraph.utils.ModelConverter;
 import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
 import org.openecomp.sdc.be.model.operations.impl.DaoStatusConverter;
+import org.openecomp.sdc.be.plugins.CsarEntryGenerator;
 import org.openecomp.sdc.be.resources.data.DAOArtifactData;
 import org.openecomp.sdc.be.resources.data.SdcSchemaFilesData;
 import org.openecomp.sdc.be.tosca.model.ToscaTemplate;
@@ -108,6 +109,9 @@ public class CsarUtils {
     private ToscaExportHandler toscaExportUtils;
     @Autowired
     protected ToscaOperationFacade toscaOperationFacade;
+  
+    @Autowired(required = false)
+    private List<CsarEntryGenerator> generators;
 
     private static final String CONFORMANCE_LEVEL = ConfigurationManager.getConfigurationManager().getConfiguration().getToscaConformanceLevel();
     private static final String SDC_VERSION = ExternalConfiguration.getAppVersion();
@@ -303,6 +307,16 @@ public class CsarUtils {
             return Either.right(collectedComponentCsarDefinition.right().value());
         }
 
+        if (generators != null) {
+	        for (CsarEntryGenerator generator: generators) {
+	            log.debug("Invoking CsarEntryGenerator: {}", generator.getClass().getName());
+		        for (Entry<String, byte[]> pluginGeneratedFile : generator.generateCsarEntries(component).entrySet()) {
+		        	zip.putNextEntry(new ZipEntry(pluginGeneratedFile.getKey()));
+		            zip.write(pluginGeneratedFile.getValue());
+		        }
+	        }
+        }
+
         return writeAllFilesToCsar(component, collectedComponentCsarDefinition.left().value(), zip, isInCertificationRequest);
     }
 
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/config/CatalogBESpringConfig.java b/catalog-be/src/main/java/org/openecomp/sdc/config/CatalogBESpringConfig.java
index 7e5535d688..2f72b771e1 100644
--- a/catalog-be/src/main/java/org/openecomp/sdc/config/CatalogBESpringConfig.java
+++ b/catalog-be/src/main/java/org/openecomp/sdc/config/CatalogBESpringConfig.java
@@ -60,6 +60,7 @@ import org.springframework.core.annotation.Order;
         "org.openecomp.sdc.be.externalapi.servlet",
         "org.openecomp.sdc.be.servlets",
         "org.openecomp.sdc.be.filters",
+        "org.openecomp.sdc.be.plugins",
         "org.openecomp.sdc.be.togglz"
 })
 public class CatalogBESpringConfig {