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/jboss-as-7.1.1.Final/ejb3/src/main/java/org/jboss/as/ejb3/component/singleton/SingletonComponentInstanceAssociationInterceptor.java

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Java | 55 lines | 22 code | 6 blank | 27 comment | 2 complexity | 658f4b19d1c6435373dac033f634322e MD5 | raw file
Possible License(s): LGPL-2.1, Apache-2.0
  1. /*
  2. * JBoss, Home of Professional Open Source.
  3. * Copyright 2010, Red Hat, Inc., and individual contributors
  4. * as indicated by the @author tags. See the copyright.txt file in the
  5. * distribution for a full listing of individual contributors.
  6. *
  7. * This is free software; you can redistribute it and/or modify it
  8. * under the terms of the GNU Lesser General Public License as
  9. * published by the Free Software Foundation; either version 2.1 of
  10. * the License, or (at your option) any later version.
  11. *
  12. * This software is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public
  18. * License along with this software; if not, write to the Free
  19. * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20. * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
  21. */
  22. package org.jboss.as.ejb3.component.singleton;
  23. import org.jboss.as.ee.component.ComponentInstance;
  24. import org.jboss.as.ejb3.component.interceptors.AbstractEJBInterceptor;
  25. import org.jboss.invocation.ImmediateInterceptorFactory;
  26. import org.jboss.invocation.InterceptorContext;
  27. import org.jboss.invocation.InterceptorFactory;
  28. import static org.jboss.as.ejb3.EjbMessages.MESSAGES;
  29. /**
  30. * Responsible for associating the single component instance for a singleton bean during invocation.
  31. *
  32. * @author Jaikiran Pai
  33. */
  34. public class SingletonComponentInstanceAssociationInterceptor extends AbstractEJBInterceptor {
  35. public static final InterceptorFactory FACTORY = new ImmediateInterceptorFactory(new SingletonComponentInstanceAssociationInterceptor());
  36. private SingletonComponentInstanceAssociationInterceptor() {
  37. }
  38. @Override
  39. public Object processInvocation(InterceptorContext interceptorContext) throws Exception {
  40. SingletonComponent singletonComponent = getComponent(interceptorContext, SingletonComponent.class);
  41. // get the component instance
  42. ComponentInstance singletonComponentInstance = singletonComponent.getComponentInstance();
  43. if (singletonComponent == null) {
  44. throw MESSAGES.componentInstanceNotAvailable(interceptorContext);
  45. }
  46. interceptorContext.putPrivateData(ComponentInstance.class, singletonComponentInstance);
  47. return interceptorContext.proceed();
  48. }
  49. }