Package org.apache.camel.impl.engine

Class DefaultContextServiceLoaderPlugin

java.lang.Object
org.apache.camel.support.service.BaseService
org.apache.camel.support.service.ServiceSupport
org.apache.camel.impl.engine.DefaultContextServiceLoaderPlugin
All Implemented Interfaces:
AutoCloseable, org.apache.camel.CamelContextAware, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.spi.ContextServiceLoaderPluginResolver, org.apache.camel.spi.HasCamelContext, org.apache.camel.StatefulService, org.apache.camel.SuspendableService
public class DefaultContextServiceLoaderPlugin extends org.apache.camel.support.service.ServiceSupport implements org.apache.camel.spi.ContextServiceLoaderPluginResolver
Default implementation that automatically discovers and loads ContextServicePlugin implementations using the Java ServiceLoader mechanism.

This service is responsible for scanning the classpath for implementations of ContextServicePlugin and invoking their load method during CamelContext startup. Plugin implementations are discovered through service provider configuration files located at: META-INF/services/org.apache.camel.spi.ContextServicePlugin

The loading process occurs during the doStart() phase, ensuring that all plugins are initialized before routes are started but after the CamelContext has been created and configured.

This class extends ServiceSupport to participate in the Camel service lifecycle and implements CamelContextAware to receive the CamelContext instance that plugins will operate on.

See Also:

  • Field Summary

    Fields inherited from class org.apache.camel.support.service.BaseService

    BUILT, FAILED, INITIALIZED, INITIALIZING, lock, NEW, SHUTDOWN, SHUTTING_DOWN, STARTED, STARTING, status, STOPPED, STOPPING, SUSPENDED, SUSPENDING

  • Constructor Summary

    Constructors
    Constructor
    Description
    DefaultContextServiceLoaderPlugin()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    doStart()
    Discovers and loads all ContextServicePlugin implementations found on the classpath.
    protected void
    doStop()
     
    org.apache.camel.CamelContext
    getCamelContext()
     
    void
    setCamelContext(org.apache.camel.CamelContext camelContext)
     

    Methods inherited from class org.apache.camel.support.service.BaseService

    build, doBuild, doFail, doInit, doLifecycleChange, doResume, doShutdown, doSuspend, fail, getInternalLock, getStatus, init, isBuild, isInit, isNew, isRunAllowed, isShutdown, isStarted, isStarting, isStartingOrStarted, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.apache.camel.Service

    build, close, init, start, stop

    Methods inherited from interface org.apache.camel.ShutdownableService

    shutdown

    Methods inherited from interface org.apache.camel.StatefulService

    getStatus, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isSuspending

    Methods inherited from interface org.apache.camel.SuspendableService

    isSuspended, resume, suspend

  • Constructor Details

    • DefaultContextServiceLoaderPlugin

      public DefaultContextServiceLoaderPlugin()

  • Method Details

    • doStart

      protected void doStart() throws Exception
      Discovers and loads all ContextServicePlugin implementations found on the classpath.

      This method is called during service startup and uses ServiceLoader to automatically discover plugin implementations. Each discovered plugin's load method is invoked with the current CamelContext, allowing plugins to perform their initialization logic.

      The plugins are loaded in the order they are discovered by the ServiceLoader, which may vary between JVM implementations and is generally not guaranteed to be deterministic.

      Overrides:
      doStart in class org.apache.camel.support.service.BaseService
      Throws:
      Exception - if any plugin fails to load or throws an exception during initialization

    • doStop

      protected void doStop() throws Exception
      Overrides:
      doStop in class org.apache.camel.support.service.BaseService
      Throws:
      Exception

    • setCamelContext

      public void setCamelContext(org.apache.camel.CamelContext camelContext)
      Specified by:
      setCamelContext in interface org.apache.camel.CamelContextAware

    • getCamelContext

      public org.apache.camel.CamelContext getCamelContext()
      Specified by:
      getCamelContext in interface org.apache.camel.spi.HasCamelContext