Java EndpointDescription类代码示例

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@FXML
void connect() {
  state.progressVisibleProperty().set(true);
  state.rootNodeProperty().set(null);
  state.showAttributeItemProperty().set(null);
  
  addressUrl.set(address.getSelectionModel().getSelectedItem());
  logger.debug("try to open url: {}", addressUrl.get());
  connection.getEndpoints(addressUrl.get()).thenCompose(endpoints -> {
    EndpointDescription endpoint =
        connection.findLowestEndpoint(endpoints).orElseThrow(() -> new CompletionException(new Exception("no endpoint found: " + addressUrl.get())));
    return connection.connect(addressUrl.get(), endpoint);
  }).whenCompleteAsync((c, ex) -> {
    state.progressVisibleProperty().set(false);
    if (ex != null) {
      state.statusTextProperty().set(ex.getMessage());
      logger.error(ex.getMessage(), ex);
    } else {
      readHierarchy();
      updateAddressHistory();
    }
  }, FX_PLATFORM_EXECUTOR);
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
public CompletableFuture<UaClient> connect(String url, EndpointDescription endpoint) {
  clientHandles.set(0);
  endpointDescription.set(endpoint);

  logger.debug("use endpoint: {} [{}]", endpointDescription.get().getEndpointUrl(), endpointDescription.get().getSecurityMode());

  if (!url.equals(endpointDescription.get().getEndpointUrl())) {
    logger.warn("fix search (returned) endpoint url missmatch: {} ({})", url, endpointDescription.get().getEndpointUrl());
    endpointDescription.set(changeEndpointUrl(endpointDescription.get(), url));
  }
  List<IdentityProvider> idProv = new ArrayList<>();
  getIdentityProvider().ifPresent(idProv::add);
  idProv.add(new AnonymousProvider());

  OpcUaClientConfig config = OpcUaClientConfig.builder().setApplicationName(LocalizedText.english(name)).setApplicationUri("urn:comtel:opcua:client")
      .setEndpoint(endpointDescription.get()).setIdentityProvider(new CompositeProvider(idProv)).setRequestTimeout(uint(5000))
      .build();

  return newClient(config).thenCompose(c -> c.connect());
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
/**
 * Query the GetEndpoints service at the given endpoint URL.
 *
 * @param endpointUrl the endpoint URL to get endpoints from.
 * @return the {@link EndpointDescription}s returned by the GetEndpoints service.
 */
public static CompletableFuture<EndpointDescription[]> getEndpoints(String endpointUrl) {
    UaTcpStackClientConfig config = UaTcpStackClientConfig.builder()
        .setEndpointUrl(endpointUrl)
        .build();

    UaTcpStackClient client = new UaTcpStackClient(config);

    GetEndpointsRequest request = new GetEndpointsRequest(
        new RequestHeader(null, DateTime.now(), uint(1), uint(0), null, uint(5000), null),
        endpointUrl, null, new String[]{Stack.UA_TCP_BINARY_TRANSPORT_URI});

    return client.connect().thenCompose(c ->
        c.<GetEndpointsResponse>sendRequest(request)
            .whenComplete((r, ex) -> client.disconnect())
            .thenApply(GetEndpointsResponse::getEndpoints)
    );
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
public ClientExample(X509Certificate certificate, KeyPair keyPair) throws Exception {
    // Query endpoints and select highest security level.
    EndpointDescription[] endpoints = UaTcpStackClient.getEndpoints("opc.tcp://localhost:12685/example").get();

    EndpointDescription endpoint = Arrays.stream(endpoints)
        .sorted((e1, e2) -> e2.getSecurityLevel().intValue() - e1.getSecurityLevel().intValue())
        .findFirst()
        .orElseThrow(() -> new Exception("no endpoints returned"));

    UaTcpStackClientConfig config = UaTcpStackClientConfig.builder()
        .setApplicationName(LocalizedText.english("Stack Example Client"))
        .setApplicationUri(String.format("urn:example-client:%s", UUID.randomUUID()))
        .setCertificate(certificate)
        .setKeyPair(keyPair)
        .setEndpoint(endpoint)
        .build();

    client = new UaTcpStackClient(config);
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
private UaTcpStackClient createClient(EndpointDescription endpoint) throws UaException {
    UaTcpStackClientConfig config = UaTcpStackClientConfig.builder()
        .setEndpoint(endpoint)
        .setKeyPair(clientKeyPair)
        .setCertificate(clientCertificate)
        .setCertificateValidator(new InsecureCertificateValidator() {
            @Override
            public void validate(X509Certificate certificate) throws UaException {}

            @Override
            public void verifyTrustChain(List<X509Certificate> certificateChain) throws UaException {}
        })
        .build();

    return new UaTcpStackClient(config);
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Test
public void testGetIdentityToken() throws Exception {
    EndpointDescription endpoint = new EndpointDescription(
        null, null, null, null, null,
        new UserTokenPolicy[]{
            new UserTokenPolicy(
                "anonymous",
                UserTokenType.Anonymous,
                null, null, null)
        },
        null, null
    );

    AnonymousProvider p = new AnonymousProvider();

    Tuple2<UserIdentityToken, SignatureData> t2 =
        p.getIdentityToken(endpoint, ByteString.NULL_VALUE);

    assertEquals(t2.v1().getPolicyId(), "anonymous");
    assertTrue(t2.v1() instanceof AnonymousIdentityToken);
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Test
public void testGetIdentityToken_EmptyPolicyId() throws Exception {
    EndpointDescription endpoint = new EndpointDescription(
        null, null, null, null, null,
        new UserTokenPolicy[]{
            new UserTokenPolicy(
                "",
                UserTokenType.Anonymous,
                null, null, null)
        },
        null, null
    );

    AnonymousProvider p = new AnonymousProvider();

    Tuple2<UserIdentityToken, SignatureData> t2 =
        p.getIdentityToken(endpoint, ByteString.NULL_VALUE);

    assertEquals(t2.v1().getPolicyId(), "");
    assertTrue(t2.v1() instanceof AnonymousIdentityToken);
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Test
public void testGetIdentityToken_NullPolicyId() throws Exception {
    EndpointDescription endpoint = new EndpointDescription(
        null, null, null, null, null,
        new UserTokenPolicy[]{
            new UserTokenPolicy(
                null,
                UserTokenType.Anonymous,
                null, null, null)
        },
        null, null
    );

    AnonymousProvider p = new AnonymousProvider();

    Tuple2<UserIdentityToken, SignatureData> t2 =
        p.getIdentityToken(endpoint, ByteString.NULL_VALUE);

    assertNull(t2.v1().getPolicyId());
    assertTrue(t2.v1() instanceof AnonymousIdentityToken);
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Test
public void testGetIdentityToken_NoMatch_Throws() {
    EndpointDescription endpoint = new EndpointDescription(
        null, null, null, null, null,
        new UserTokenPolicy[]{
            new UserTokenPolicy(
                "username",
                UserTokenType.UserName,
                null, null, null)
        },
        null, null
    );

    AnonymousProvider p = new AnonymousProvider();

    assertThrows(() -> p.getIdentityToken(endpoint, ByteString.NULL_VALUE));
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
private void startClient() throws Exception {
    EndpointDescription[] endpoints = UaTcpStackClient
        .getEndpoints("opc.tcp://localhost:12686/test-server").get();

    EndpointDescription endpoint = Arrays.stream(endpoints)
        .filter(e -> e.getSecurityPolicyUri().equals(SecurityPolicy.None.getSecurityPolicyUri()))
        .findFirst().orElseThrow(() -> new Exception("no desired endpoints returned"));

    KeyStoreLoader loader = new KeyStoreLoader().load();

    OpcUaClientConfig clientConfig = OpcUaClientConfig.builder()
        .setApplicationName(LocalizedText.english("Eclipse Milo Test Client"))
        .setApplicationUri("urn:eclipse:milo:examples:client")
        .setCertificate(loader.getClientCertificate())
        .setKeyPair(loader.getClientKeyPair())
        .setEndpoint(endpoint)
        .setRequestTimeout(uint(60000))
        .build();

    client = new OpcUaClient(clientConfig);
    client.connect().get();
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Test
public void testUsernamePassword() throws Exception {
    logger.info("testUsernamePassword()");

    EndpointDescription[] endpoints = UaTcpStackClient.getEndpoints("opc.tcp://localhost:12686/test-server").get();

    EndpointDescription endpoint = Arrays.stream(endpoints)
        .filter(e -> e.getSecurityPolicyUri().equals(SecurityPolicy.None.getSecurityPolicyUri()))
        .findFirst().orElseThrow(() -> new Exception("no desired endpoints returned"));

    KeyStoreLoader loader = new KeyStoreLoader().load();

    OpcUaClientConfig clientConfig = OpcUaClientConfig.builder()
        .setApplicationName(LocalizedText.english("Eclipse Milo Test Client"))
        .setApplicationUri("urn:eclipse:milo:test:client")
        .setCertificate(loader.getClientCertificate())
        .setKeyPair(loader.getClientKeyPair())
        .setEndpoint(endpoint)
        .setRequestTimeout(uint(60000))
        .setIdentityProvider(new UsernameProvider("user", "password"))
        .build();

    OpcUaClient client = new OpcUaClient(clientConfig);

    client.connect().get();
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Test
public void testUsernamePassword_WithSecurity() throws Exception {
    logger.info("testUsernamePassword_WithSecurity()");

    EndpointDescription[] endpoints = UaTcpStackClient.getEndpoints("opc.tcp://localhost:12686/test-server").get();

    EndpointDescription endpoint = Arrays.stream(endpoints)
        .filter(e -> e.getSecurityPolicyUri().equals(SecurityPolicy.Aes256_Sha256_RsaPss.getSecurityPolicyUri()))
        .findFirst().orElseThrow(() -> new Exception("no desired endpoints returned"));

    KeyStoreLoader loader = new KeyStoreLoader().load();

    OpcUaClientConfig clientConfig = OpcUaClientConfig.builder()
        .setApplicationName(LocalizedText.english("Eclipse Milo Test Client"))
        .setApplicationUri("urn:eclipse:milo:examples:client")
        .setCertificate(loader.getClientCertificate())
        .setKeyPair(loader.getClientKeyPair())
        .setEndpoint(endpoint)
        .setRequestTimeout(uint(60000))
        .setIdentityProvider(new UsernameProvider("user", "password"))
        .build();

    OpcUaClient client = new OpcUaClient(clientConfig);

    client.connect().get();
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Override
public Tuple2<UserIdentityToken, SignatureData> getIdentityToken(
    EndpointDescription endpoint,
    ByteString serverNonce) throws Exception {

    List<UserTokenPolicy> userIdentityTokens = l(endpoint.getUserIdentityTokens());

    return userIdentityTokens.stream()
        .filter(t -> t.getTokenType() == UserTokenType.Anonymous)
        .findFirst()
        .map(policy -> {
            UserIdentityToken token = new AnonymousIdentityToken(policy.getPolicyId());

            return new Tuple2<>(token, new SignatureData());
        })
        .orElseThrow(() -> new Exception("no anonymous token policy found"));
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
@Override
public Tuple2<UserIdentityToken, SignatureData> getIdentityToken(EndpointDescription endpoint,
                                                                 ByteString serverNonce) throws Exception {

    Iterator<IdentityProvider> iterator = providers.iterator();

    while (iterator.hasNext()) {
        IdentityProvider provider = iterator.next();

        try {
            return provider.getIdentityToken(endpoint, serverNonce);
        } catch (Exception e) {
            if (!iterator.hasNext()) {
                throw e;
            }

            logger.debug("IdentityProvider={} failed, trying next...", provider.toString());
        }
    }

    throw new Exception("no sufficient UserTokenPolicy found");
}
 

import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription; //导入依赖的package包/类
public static EndpointDescription findBest(final EndpointDescription[] endpoints) {
    /*
     * We simply assume we have at least one and pick the first one. In a more
     * productive scenario you would actually evaluate things like ciphers and
     * security.
     */
    return endpoints[0];
}