feat(core-api): plugin interface async initializer

Signed-off-by: TonyRowntree <[email protected]>

examples/cactus-example-carbon-accounting-business-logic-plugin/src/main/typescript/business-logic-plugin/carbon-accounting-plugin.ts

@@ -142,6 +142,10 @@ export class CarbonAccountingPlugin
     return "@hyperledger/cactus-example-carbon-accounting-backend";
   }
 
+  public async onPluginInit(): Promise<unknown> {
+    return;
+  }
+
   public async enrollAdminV1(
     req: EnrollAdminV1Request,
   ): Promise<EnrollAdminV1Response> {

examples/cactus-example-supply-chain-business-logic-plugin/src/main/typescript/business-logic-plugin/supply-chain-cactus-plugin.ts

@@ -162,4 +162,8 @@ export class SupplyChainCactusPlugin
   public getPackageName(): string {
     return "@hyperledger/cactus-example-supply-chain-backend";
   }
+
+  public async onPluginInit(): Promise<unknown> {
+    return;
+  }
 }

packages/cactus-cmd-api-server/src/test/typescript/fixtures/plugin-ledger-connector-stub/plugin-ledger-connector-stub.ts

@@ -74,6 +74,10 @@ export class PluginLedgerConnectorStub
     return Optional.empty();
   }
 
+  public async onPluginInit(): Promise<unknown> {
+    return;
+  }
+
   public async shutdown(): Promise<void> {
     return;
   }

packages/cactus-core/src/test/typescript/unit/plugin-registry.test.ts

@@ -26,6 +26,10 @@ test("PluginRegistry", (tMain: Test) => {
         throw new Error("This is a mock. Not implemented.");
       },
       getPackageName: () => "@hyperledger/cactus-plugin-keychain-mock",
+
+      onPluginInit: async () => {
+        throw new Error("not sure how this works");
+      },
     };
 
     const pluginRegistry = new PluginRegistry({

packages/cactus-plugin-keychain-vault/src/main/typescript/plugin-keychain-vault-remote-adapter.ts

@@ -149,4 +149,8 @@ export class PluginKeychainVaultRemoteAdapter
   public getPackageName(): string {
     return `@hyperledger/cactus-plugin-keychain-vault`;
   }
+
+  public async onPluginInit(): Promise<unknown> {
+    return;
+  }
 }