code: /*
   * Copyright (c) 2021 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.examples.client;
  
  import java.util.concurrent.CompletableFuture;
  import java.util.function.Predicate;
  
  import org.eclipse.milo.opcua.sdk.client.OpcUaClient;
  import org.eclipse.milo.opcua.sdk.client.api.identity.AnonymousProvider;
  import org.eclipse.milo.opcua.sdk.client.api.identity.IdentityProvider;
  import org.eclipse.milo.opcua.stack.core.security.SecurityPolicy;
  import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription;
  
  
  public interface ClientExample {
  
      default String getEndpointUrl() {
          return "opc.tcp://localhost:12686/milo";
      }
  
      default Predicate<EndpointDescription> endpointFilter() {
          return e -> getSecurityPolicy().getUri().equals(e.getSecurityPolicyUri());
      }
  
      default SecurityPolicy getSecurityPolicy() {
          return SecurityPolicy.Basic256Sha256;
      }
  
      default IdentityProvider getIdentityProvider() {
          return new AnonymousProvider();
      }
  
      void run(OpcUaClient client, CompletableFuture<OpcUaClient> future) throws Exception;
  
  }
  