Add getters for config and transport in clients (#110)

Author: kevinherron

modbus/src/main/java/com/digitalpetri/modbus/client/ModbusClient.java

@@ -37,6 +37,15 @@ public abstract class ModbusClient {
     this.transport = transport;
   }
 
+  /**
+   * Get the {@link ModbusClientTransport} used by this client.
+   *
+   * @return the {@link ModbusClientTransport} used by this client.
+   */
+  public ModbusClientTransport<?> getTransport() {
+    return transport;
+  }
+
   /**
    * Connect the underlying transport.
    *

modbus/src/main/java/com/digitalpetri/modbus/client/ModbusRtuClient.java

@@ -46,6 +46,25 @@ public ModbusRtuClient(ModbusClientConfig config, ModbusRtuClientTransport trans
     transport.receive(this::onFrameReceived);
   }
 
+  /**
+   * Get the {@link ModbusClientConfig} used by this client.
+   *
+   * @return the {@link ModbusClientConfig} used by this client.
+   */
+  public ModbusClientConfig getConfig() {
+    return config;
+  }
+
+  /**
+   * Get the {@link ModbusRtuClientTransport} used by this client.
+   *
+   * @return the {@link ModbusRtuClientTransport} used by this client.
+   */
+  @Override
+  public ModbusRtuClientTransport getTransport() {
+    return transport;
+  }
+
   @Override
   public CompletionStage<ModbusResponsePdu> sendAsync(int unitId, ModbusRequestPdu request) {
     ByteBuffer pdu = ByteBuffer.allocate(256);

modbus/src/main/java/com/digitalpetri/modbus/client/ModbusTcpClient.java

@@ -47,6 +47,25 @@ public ModbusTcpClient(ModbusClientConfig config, ModbusTcpClientTransport trans
     transport.receive(this::onFrameReceived);
   }
 
+  /**
+   * Get the {@link ModbusClientConfig} used by this client.
+   *
+   * @return the {@link ModbusClientConfig} used by this client.
+   */
+  public ModbusClientConfig getConfig() {
+    return config;
+  }
+
+  /**
+   * Get the {@link ModbusTcpClientTransport} used by this client.
+   *
+   * @return the {@link ModbusTcpClientTransport} used by this client.
+   */
+  @Override
+  public ModbusTcpClientTransport getTransport() {
+    return transport;
+  }
+
   public byte[] sendRaw(int unitId, byte[] pduBytes)
       throws ModbusExecutionException, ModbusResponseException, ModbusTimeoutException {