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/jboss-as-7.1.1.Final/osgi/service/src/main/java/org/jboss/as/osgi/parser/StartLevelHandler.java

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Java | 72 lines | 37 code | 7 blank | 28 comment | 5 complexity | 1c8ccd338d9f8473745e861ab3fc39a3 MD5 | raw file
Possible License(s): LGPL-2.1, Apache-2.0
  1. /*
  2. * JBoss, Home of Professional Open Source.
  3. * Copyright 2011, 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.osgi.parser;
  23. import org.jboss.as.controller.OperationContext;
  24. import org.jboss.as.controller.OperationFailedException;
  25. import org.jboss.as.controller.OperationStepHandler;
  26. import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
  27. import org.jboss.dmr.ModelNode;
  28. import org.jboss.msc.service.ServiceController;
  29. import org.jboss.osgi.framework.Services;
  30. import org.osgi.service.startlevel.StartLevel;
  31. /**
  32. * Handles the framework start level.
  33. *
  34. * @author David Bosschaert
  35. */
  36. abstract class StartLevelHandler implements OperationStepHandler {
  37. static final StartLevelHandler READ_HANDLER = new StartLevelHandler() {
  38. @Override
  39. void invokeOperation(StartLevel sls, OperationContext context, ModelNode operation) {
  40. int sl = sls.getStartLevel();
  41. context.getResult().set(sl);
  42. }
  43. };
  44. static final StartLevelHandler WRITE_HANDLER = new StartLevelHandler() {
  45. @Override
  46. void invokeOperation(StartLevel sls, OperationContext context, ModelNode operation) {
  47. int targetStartLevel = operation.require(ModelDescriptionConstants.VALUE).asInt();
  48. sls.setStartLevel(targetStartLevel);
  49. }
  50. };
  51. @Override
  52. public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
  53. ServiceController<?> svc = context.getServiceRegistry(false).getRequiredService(Services.START_LEVEL);
  54. if (svc == null || svc.getState() != ServiceController.State.UP) {
  55. // non-metric read-attribute handlers should not fail
  56. // OSGiMessages.MESSAGES.osgiSubsystemNotActive()
  57. context.getResult().set(new ModelNode());
  58. } else {
  59. StartLevel sls = (StartLevel) svc.getValue();
  60. invokeOperation(sls, context, operation);
  61. }
  62. context.completeStep();
  63. }
  64. abstract void invokeOperation(StartLevel sls, OperationContext context, ModelNode operation);
  65. }