CoapServerGroup: return underlying transports

coap-core/src/main/java/com/mbed/coap/server/CoapServer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022-2023 java-coap contributors (https://github.com/open-coap/java-coap)
+ * Copyright (C) 2022-2024 java-coap contributors (https://github.com/open-coap/java-coap)
  * Copyright (C) 2011-2021 ARM Limited. All rights reserved.
  * SPDX-License-Identifier: Apache-2.0
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -33,7 +33,7 @@
 public class CoapServer {
     private static final Logger LOGGER = LoggerFactory.getLogger(CoapServer.class);
     private final AtomicBoolean isRunning = new AtomicBoolean(false);
-    private final CoapTransport transport;
+    final CoapTransport transport;
     private final Consumer<CoapPacket> dispatcher;
     private final Service<CoapRequest, CoapResponse> outboundService;
     private final Service<SeparateResponse, Boolean> outboundResponseService;
@@ -129,4 +129,8 @@ public final Service<CoapRequest, CoapResponse> clientService() {
     public Service<SeparateResponse, Boolean> outboundResponseService() {
         return outboundResponseService;
     }
+
+    CoapTransport getTransport() {
+        return transport;
+    }
 }

coap-core/src/main/java/com/mbed/coap/server/CoapServerGroup.java

@@ -17,6 +17,7 @@
 
 import static com.mbed.coap.utils.Validations.require;
 import static java.util.stream.Collectors.toList;
+import com.mbed.coap.transport.CoapTransport;
 import java.io.IOException;
 import java.util.List;
 
@@ -48,4 +49,8 @@ public boolean isRunning() {
     public List<Integer> getLocalPorts() {
         return servers.stream().map(server -> server.getLocalSocketAddress().getPort()).collect(toList());
     }
+
+    public List<CoapTransport> getTransports() {
+        return servers.stream().map(CoapServer::getTransport).collect(toList());
+    }
 }

coap-core/src/test/java/com/mbed/coap/server/CoapServerGroupTest.java

@@ -38,6 +38,7 @@ class CoapServerGroupTest {
     void test() throws Exception {
         // given
         CoapServerGroup servers = builder.buildGroup(3).start();
+        assertEquals(3, servers.getTransports().size());
         CoapClient client = builder.buildClient(localhost(10_001));
         CoapClient client2 = builder.buildClient(localhost(10_003));