expose get function for other plugins to use

Signed-off-by: Tianle Huang <tianleh@amazon.com>

Author: tianleh

src/plugins/application_config/server/opensearch_config_client.ts

@@ -53,6 +53,4 @@ export class OpenSearchConfigurationClient implements ConfigurationClient {
       throw e;
     }
   }
-
-
 }

src/plugins/application_config/server/plugin.ts

@@ -38,11 +38,12 @@ export class ApplicationConfigPlugin
     this.configurationIndexName = '';
   }
 
-  private setConfigurationClient(inputConfigurationClient: ConfigurationClient) {
+  private registerConfigurationClient(inputConfigurationClient: ConfigurationClient) {
+    this.logger.info('Register a configuration client.');
     this.configurationClient = inputConfigurationClient;
   }
 
-  private getConfigurationClient(inputOpenSearchClient: IScopedClusterClient) {
+  private getConfigurationClient(inputOpenSearchClient: IScopedClusterClient): ConfigurationClient {
     if (this.configurationClient) {
       return this.configurationClient;
     }
@@ -68,7 +69,8 @@ export class ApplicationConfigPlugin
     defineRoutes(router, this.getConfigurationClient.bind(this), this.logger);
 
     return {
-      setConfigurationClient: this.setConfigurationClient.bind(this),
+      getConfigurationClient: this.getConfigurationClient.bind(this),
+      registerConfigurationClient: this.registerConfigurationClient.bind(this),
     };
   }
 
@@ -77,5 +79,5 @@ export class ApplicationConfigPlugin
     return {};
   }
 
-  public stop() { }
+  public stop() {}
 }

src/plugins/application_config/server/types.ts

@@ -1,8 +1,11 @@
+import { IScopedClusterClient } from 'src/core/server';
+
 export interface ApplicationConfigPluginSetup {
-  setConfigurationClient: (inputConfigurationClient: ConfigurationClient) => void;
+  getConfigurationClient: (inputOpenSearchClient: IScopedClusterClient) => ConfigurationClient;
+  registerConfigurationClient: (inputConfigurationClient: ConfigurationClient) => void;
 }
 // eslint-disable-next-line @typescript-eslint/no-empty-interface
-export interface ApplicationConfigPluginStart { }
+export interface ApplicationConfigPluginStart {}
 
 export interface ConfigurationClient {
   getConfig(): Promise<string>;