Post api publishing observer implementation

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.webapp.publisher/src/main/java/io/entgra/device/mgt/core/apimgt/webapp/publisher/APIPublisherStartupHandler.java

@@ -90,6 +90,15 @@ public class APIPublisherStartupHandler implements ServerStartupObserver {
                 } catch (APIManagerPublisherException e) {
                     log.error("failed to update scope role mapping.", e);
                 }
+
+                // execute after api publishing
+                for (PostApiPublishingObsever observer : APIPublisherDataHolder.getInstance().getPostApiPublishingObseverList()) {
+                    if (log.isDebugEnabled()) {
+                        log.debug("Executing " + observer.getClass().getName());
+                    }
+                    observer.execute();
+                }
+                log.info("Finish executing PostApiPublishingObsevers");
             }
         });
         t.start();

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.webapp.publisher/src/main/java/io/entgra/device/mgt/core/apimgt/webapp/publisher/PostApiPublishingObsever.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you 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.
+ */
+package io.entgra.device.mgt.core.apimgt.webapp.publisher;
+
+public interface PostApiPublishingObsever {
+    void execute();
+
+}

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.webapp.publisher/src/main/java/io/entgra/device/mgt/core/apimgt/webapp/publisher/internal/APIPublisherDataHolder.java

@@ -22,6 +22,7 @@ import io.entgra.device.mgt.core.apimgt.extension.rest.api.PublisherRESTAPIServi
 import io.entgra.device.mgt.core.apimgt.webapp.publisher.APIConfig;
 import io.entgra.device.mgt.core.apimgt.webapp.publisher.APIPublisherService;
 import io.entgra.device.mgt.core.device.mgt.common.metadata.mgt.MetadataManagementService;
+import io.entgra.device.mgt.core.apimgt.webapp.publisher.PostApiPublishingObsever;
 import org.wso2.carbon.context.CarbonContext;
 import org.wso2.carbon.context.PrivilegedCarbonContext;
 import org.wso2.carbon.registry.core.service.RegistryService;
@@ -32,9 +33,11 @@ import org.wso2.carbon.user.core.service.RealmService;
 import org.wso2.carbon.user.core.tenant.TenantManager;
 import org.wso2.carbon.utils.ConfigurationContextService;
 
-import java.util.HashMap;
 import java.util.Map;
 import java.util.Stack;
+import java.util.List;
+import java.util.ArrayList;
+
 
 public class APIPublisherDataHolder {
 
@@ -52,6 +55,7 @@ public class APIPublisherDataHolder {
 
     private static APIPublisherDataHolder thisInstance = new APIPublisherDataHolder();
 
+    private List<PostApiPublishingObsever> postApiPublishingObseverList = new ArrayList<>();
     private APIPublisherDataHolder() {
     }
 
@@ -179,4 +183,16 @@ public class APIPublisherDataHolder {
     public void setMetadataManagementService(MetadataManagementService metadataManagementService) {
         this.metadataManagementService = metadataManagementService;
     }
+
+    public List<PostApiPublishingObsever> getPostApiPublishingObseverList() {
+        return postApiPublishingObseverList;
+    }
+
+    public void addPostApiPublishingObseverList(PostApiPublishingObsever postApiPublishingObseverList) {
+        this.postApiPublishingObseverList.add(postApiPublishingObseverList);
+    }
+
+    public void removePostApiPublishingObseverList(PostApiPublishingObsever postApiPublishingObsever) {
+        this.postApiPublishingObseverList.remove(postApiPublishingObsever);
+    }
 }

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.webapp.publisher/src/main/java/io/entgra/device/mgt/core/apimgt/webapp/publisher/internal/APIPublisherServiceComponent.java

@@ -20,6 +20,7 @@ package io.entgra.device.mgt.core.apimgt.webapp.publisher.internal;
 import io.entgra.device.mgt.core.apimgt.extension.rest.api.APIApplicationServices;
 import io.entgra.device.mgt.core.apimgt.extension.rest.api.PublisherRESTAPIServices;
 import io.entgra.device.mgt.core.device.mgt.common.metadata.mgt.MetadataManagementService;
+import io.entgra.device.mgt.core.apimgt.webapp.publisher.PostApiPublishingObsever;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.osgi.framework.BundleContext;
@@ -66,6 +67,12 @@ import java.util.HashMap;
  * policy="dynamic"
  * bind="setMetaDataMgtService"
  * unbind="unsetMetaDataMgtService"
+ * @scr.reference name="postApiPublishingObsever"
+ * interface="io.entgra.device.mgt.core.apimgt.webapp.publisher.PostApiPublishingObsever"
+ * cardinality="0..n"
+ * policy="dynamic"
+ * bind="setPostApiPublishingObsever"
+ * unbind="unsetPostApiPublishingObsever"
  */
 public class APIPublisherServiceComponent {
 
@@ -176,4 +183,18 @@ public class APIPublisherServiceComponent {
         APIPublisherDataHolder.getInstance().setMetadataManagementService(null);
     }
 
+    protected void setPostApiPublishingObsever(PostApiPublishingObsever postApiPublishingObsever) {
+        if (log.isDebugEnabled()) {
+            log.debug("Setting PostApiPublishingObsever");
+        }
+        APIPublisherDataHolder.getInstance().addPostApiPublishingObseverList(postApiPublishingObsever);
+    }
+
+    protected void unsetPostApiPublishingObsever(PostApiPublishingObsever postApiPublishingObsever) {
+        if (log.isDebugEnabled()) {
+            log.debug("Unsetting PostApiPublishingObsever");
+        }
+        APIPublisherDataHolder.getInstance().removePostApiPublishingObseverList(postApiPublishingObsever);
+    }
+
 }