Chapter 238. Nagios Component Available as of Camel version 2.3 The Nagios component allows you to send passive checks to Nagios . Maven users will need to add the following dependency to their pom.xml for this component: <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-nagios</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency> 238.1. URI format nagios://host[:port][?Options] Camel provides two abilities with the Nagios component. You can send passive check messages by sending a message to its endpoint. Camel also provides a EventNotifer which allows you to send notifications to Nagios. 238.2. Options The Nagios component supports 2 options, which are listed below. Name Description Default Type configuration (advanced) To use a shared NagiosConfiguration NagiosConfiguration 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 The Nagios endpoint is configured using URI syntax: with the following path and query parameters: 238.2.1. Path Parameters (2 parameters): Name Description Default Type host Required This is the address of the Nagios host where checks should be send. String port Required The port number of the host. int 238.2.2. Query Parameters (7 parameters): Name Description Default Type connectionTimeout (producer) Connection timeout in millis. 5000 int sendSync (producer) Whether or not to use synchronous when sending a passive check. Setting it to false will allow Camel to continue routing the message and the passive check message will be send asynchronously. true boolean timeout (producer) Sending timeout in millis. 5000 int synchronous (advanced) Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported). false boolean encryption (security) To specify an encryption method. Encryption encryptionMethod (security) Deprecated To specify an encryption method. NagiosEncryptionMethod password (security) Password to be authenticated when sending checks to Nagios. String 238.3. Spring Boot Auto-Configuration The component supports 10 options, which are listed below. Name Description Default Type camel.component.nagios.configuration.connection-timeout Connection timeout in millis. 5000 Integer camel.component.nagios.configuration.encryption To specify an encryption method. Encryption camel.component.nagios.configuration.host This is the address of the Nagios host where checks should be send. String camel.component.nagios.configuration.nagios-settings NagiosSettings camel.component.nagios.configuration.password Password to be authenticated when sending checks to Nagios. String camel.component.nagios.configuration.port The port number of the host. Integer camel.component.nagios.configuration.timeout Sending timeout in millis. 5000 Integer camel.component.nagios.enabled Enable nagios component true Boolean camel.component.nagios.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.nagios.configuration.encryption-method To specify an encryption method. NagiosEncryptionMethod 238.4. Sending message examples You can send a message to Nagios where the message payload contains the message. By default it will be OK level and use the CamelContext name as the service name. You can overrule these values using headers as shown above. For example we send the Hello Nagios message to Nagios as follows: template.sendBody("direct:start", "Hello Nagios"); from("direct:start").to("nagios:127.0.0.1:5667?password=secret").to("mock:result"); To send a CRITICAL message you can send the headers such as: Map headers = new HashMap(); headers.put(NagiosConstants.LEVEL, "CRITICAL"); headers.put(NagiosConstants.HOST_NAME, "myHost"); headers.put(NagiosConstants.SERVICE_NAME, "myService"); template.sendBodyAndHeaders("direct:start", "Hello Nagios", headers); 238.5. Using NagiosEventNotifer The Nagios component also provides an EventNotifer which you can use to send events to Nagios. For example we can enable this from Java as follows: NagiosEventNotifier notifier = new NagiosEventNotifier(); notifier.getConfiguration().setHost("localhost"); notifier.getConfiguration().setPort(5667); notifier.getConfiguration().setPassword("password"); CamelContext context = ... context.getManagementStrategy().addEventNotifier(notifier); return context; In Spring XML its just a matter of defining a Spring bean with the type EventNotifier and Camel will pick it up as documented here: Advanced configuration of CamelContext using Spring . 238.6. See Also Configuring Camel Component Endpoint Getting Started

Commands:
<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-nagios</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency>
nagios://host[:port][?Options]
nagios:host:port
template.sendBody("direct:start", "Hello Nagios"); from("direct:start").to("nagios:127.0.0.1:5667?password=secret").to("mock:result");
Map headers = new HashMap(); headers.put(NagiosConstants.LEVEL, "CRITICAL"); headers.put(NagiosConstants.HOST_NAME, "myHost"); headers.put(NagiosConstants.SERVICE_NAME, "myService"); template.sendBodyAndHeaders("direct:start", "Hello Nagios", headers);
NagiosEventNotifier notifier = new NagiosEventNotifier(); notifier.getConfiguration().setHost("localhost"); notifier.getConfiguration().setPort(5667); notifier.getConfiguration().setPassword("password"); CamelContext context = context.getManagementStrategy().addEventNotifier(notifier); return context;