Chapter 223. OPC UA Server Component Available as of Camel version 2.19 The Milo Server component provides an OPC UA server using the Eclipse MiloTM implementation. Java 8 : This component requires Java 8 at runtime. Maven users will need to add the following dependency to their pom.xml for this component: <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-milo</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency> Messages sent to the endpoint from Camel will be available from the OPC UA server to OPC UA Clients. Value write requests from OPC UA Client will trigger messages which are sent into Apache Camel. The OPC UA Server component supports 20 options, which are listed below. Name Description Default Type namespaceUri (common) The URI of the namespace, defaults to urn:org:apache:camel String applicationName (common) The application name String applicationUri (common) The application URI String productUri (common) The product URI String bindPort (common) The TCP port the server binds to int strictEndpointUrls Enabled (common) Set whether strict endpoint URLs are enforced false boolean serverName (common) Server name String hostname (common) Server hostname String securityPolicies (common) Security policies Set securityPoliciesById (common) Security policies by URI or name Collection userAuthentication Credentials (common) Set user password combinations in the form of user1:pwd1,user2:pwd2 Usernames and passwords will be URL decoded String enableAnonymous Authentication (common) Enable anonymous authentication, disabled by default false boolean usernameSecurityPolicy Uri (common) Set the UserTokenPolicy used when SecurityPolicy bindAddresses (common) Set the addresses of the local addresses the server should bind to String buildInfo (common) Server build info BuildInfo serverCertificate (common) Server certificate Result certificateManager (common) Server certificate manager CertificateManager certificateValidator (common) Validator for client certificates Supplier defaultCertificate Validator (common) Validator for client certificates using default file based approach File resolveProperty Placeholders (advanced) Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. true boolean 223.1. URI format milo-server:itemId[?options] 223.2. URI options The OPC UA Server endpoint is configured using URI syntax: with the following path and query parameters: 223.2.1. Path Parameters (1 parameters): Name Description Default Type itemId Required ID of the item String 223.2.2. Query Parameters (4 parameters): Name Description Default Type bridgeErrorHandler (consumer) Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored. false boolean exceptionHandler (consumer) To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored. ExceptionHandler exchangePattern (consumer) Sets the exchange pattern when the consumer creates an exchange. ExchangePattern synchronous (advanced) Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported). false boolean 223.3. Spring Boot Auto-Configuration The component supports 21 options, which are listed below. Name Description Default Type camel.component.milo-server.application-name The application name String camel.component.milo-server.application-uri The application URI String camel.component.milo-server.bind-addresses Set the addresses of the local addresses the server should bind to String camel.component.milo-server.bind-port The TCP port the server binds to Integer camel.component.milo-server.build-info Server build info. The option is a org.eclipse.milo.opcua.stack.core.types.structured.BuildInfo type. String camel.component.milo-server.certificate-manager Server certificate manager. The option is a org.eclipse.milo.opcua.stack.core.application.CertificateManager type. String camel.component.milo-server.certificate-validator Validator for client certificates. The option is a java.util.function.Supplier <org.eclipse.milo.opcua.stack.core.application.CertificateValidator> type. String camel.component.milo-server.default-certificate-validator Validator for client certificates using default file based approach File camel.component.milo-server.enable-anonymous-authentication Enable anonymous authentication, disabled by default false Boolean camel.component.milo-server.enabled Enable milo-server component true Boolean camel.component.milo-server.hostname Server hostname String camel.component.milo-server.namespace-uri The URI of the namespace, defaults to urn:org:apache:camel String camel.component.milo-server.product-uri The product URI String camel.component.milo-server.resolve-property-placeholders Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. true Boolean camel.component.milo-server.security-policies Security policies Set camel.component.milo-server.security-policies-by-id Security policies by URI or name Collection camel.component.milo-server.server-certificate Server certificate. The option is a org.apache.camel.component.milo.KeyStoreLoader.Result type. String camel.component.milo-server.server-name Server name String camel.component.milo-server.strict-endpoint-urls-enabled Set whether strict endpoint URLs are enforced false Boolean camel.component.milo-server.user-authentication-credentials Set user password combinations in the form of user1:pwd1,user2:pwd2 Usernames and passwords will be URL decoded String camel.component.milo-server.username-security-policy-uri Set the UserTokenPolicy used when SecurityPolicy 223.4. See Also Configuring Camel Component Endpoint Getting Started

Commands:
<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-milo</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency>
milo-server:itemId[?options]
milo-server:itemId