Examples of org.osgi.service.startlevel.StartLevel

org.osgi.service.startlevel.StartLevel
The StartLevel service allows management agents to manage a start level assigned to each bundle and the active start level of the Framework. There is at most one StartLevel service present in the OSGi environment.
A start level is defined to be a state of execution in which the Framework exists. StartLevel values are defined as unsigned integers with 0 (zero) being the state where the Framework is not launched. Progressively higher integral values represent progressively higher start levels. e.g. 2 is a higher start level than 1.
Access to the StartLevel service is protected by corresponding {@code ServicePermission}. In addition {@code AdminPermission}is required to actually modify start level information.
Start Level support in the Framework includes the ability to control the beginning start level of the Framework, to modify the active start level of the Framework and to assign a specific start level to a bundle. How the beginning start level of a Framework is specified is implementation dependent. It may be a command line argument when invoking the Framework implementation.
When the Framework is first started it must be at start level zero. In this state, no bundles are running. This is the initial state of the Framework before it is launched. When the Framework is launched, the Framework will enter start level one and all bundles which are assigned to start level one and whose autostart setting indicates the bundle should be started are started as described in the {@code Bundle.start} method. The Framework will continue to increasethe start level, starting bundles at each start level, until the Framework has reached a beginning start level. At this point the Framework has completed starting bundles and will then fire a Framework event of type {@code FrameworkEvent.STARTED} to announce it has completed itslaunch.
Within a start level, bundles may be started in an order defined by the Framework implementation. This may be something like ascending {@code Bundle.getBundleId} order or an order based upon dependenciesbetween bundles. A similar but reversed order may be used when stopping bundles within a start level.
The StartLevel service can be used by management bundles to alter the active start level of the framework. @ThreadSafe @noimplement @author $Id: 42f3c6bbf682a69ea3914c737d5b0001694383db $ @deprecated This service has been replaced by theorg.osgi.framework.startlevel package.

    }
  }


  private static void setStartLevel(final int value) {
    ServiceReference reference = context.getServiceReference(StartLevel.class.getName());
    final StartLevel startLevel = reference != null ? (StartLevel) context.getService(reference) : null;
    if (startLevel == null)
      return;
    final Semaphore semaphore = new Semaphore(0);
    FrameworkListener listener = new FrameworkListener() {
      public void frameworkEvent(FrameworkEvent event) {
        if (event.getType() == FrameworkEvent.STARTLEVEL_CHANGED && startLevel.getStartLevel() == value)
          semaphore.release();
      }
    };
    context.addFrameworkListener(listener);
    startLevel.setStartLevel(value);
    context.ungetService(reference);
    updateSplash(semaphore, listener);
  }

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        super(BundlesMBean.class);
    }


    public TabularData list() throws Exception {
        ServiceReference startLevelReference = bundleContext.getServiceReference(StartLevel.class.getName());
        StartLevel startLevel = null;
        if (startLevelReference != null) {
            startLevel = (StartLevel) bundleContext.getService(startLevelReference);
        }


        CompositeType bundleType = new CompositeType("Bundle", "OSGi Bundle",
                new String[]{"ID", "Name", "Version", "Start Level", "State"},
                new String[]{"ID of the Bundle", "Name of the Bundle", "Version of the Bundle", "Start Level of the Bundle", "Current State of the Bundle"},
                new OpenType[]{SimpleType.LONG, SimpleType.STRING, SimpleType.STRING, SimpleType.INTEGER, SimpleType.STRING});
        TabularType tableType = new TabularType("Bundles", "Tables of all Bundles", bundleType, new String[]{"ID"});
        TabularData table = new TabularDataSupport(tableType);


        Bundle[] bundles = bundleContext.getBundles();


        for (int i = 0; i < bundles.length; i++) {
            try {
                int bundleStartLevel = 1;
                if (startLevel != null) {
                    bundleStartLevel = startLevel.getBundleStartLevel(bundles[i]);
                }
                int bundleState = bundles[i].getState();
                String bundleStateString;
                if (bundleState == Bundle.ACTIVE)
                    bundleStateString = "ACTIVE";

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    public int getStartLevel(String bundleId) throws Exception {
        ServiceReference startLevelReference = bundleContext.getServiceReference(StartLevel.class.getName());
        if (startLevelReference == null) {
            throw new IllegalStateException("StartLevel service is not available");
        }
        StartLevel startLevel = (StartLevel) bundleContext.getService(startLevelReference);
        if (startLevel == null) {
            throw new IllegalStateException("StartLevel service is not available");
        }


        BundlesSelector selector = new BundlesSelector(bundleContext);
        List<Bundle> bundles = selector.selectBundles(bundleId);


        if (bundles.size() != 1) {
            throw new IllegalArgumentException("Provided bundle Id doesn't return any bundle or more than one bundle selected");
        }


        int bundleStartLevel = startLevel.getBundleStartLevel(bundles.get(0));
        bundleContext.ungetService(startLevelReference);
        return bundleStartLevel;
    }

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    public void setStartLevel(String bundleId, int bundleStartLevel) throws Exception {
        ServiceReference startLevelReference = bundleContext.getServiceReference(StartLevel.class.getName());
        if (startLevelReference == null) {
            throw new IllegalStateException("StartLevel service is not available");
        }
        StartLevel startLevel = (StartLevel) bundleContext.getService(startLevelReference);
        if (startLevel == null) {
            throw new IllegalStateException("StartLevel service is not available");
        }


        BundlesSelector selector = new BundlesSelector(bundleContext);
        List<Bundle> bundles = selector.selectBundles(bundleId);


        for (Bundle bundle : bundles) {
            startLevel.setBundleStartLevel(bundle, bundleStartLevel);
        }


        bundleContext.ungetService(startLevelReference);
    }

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        // Check if we want to convert URLs to maven style
        boolean convertToMavenUrls = Boolean.parseBoolean(configProps.getProperty(PROPERTY_CONVERT_TO_MAVEN_URL, "true"));


        // Retrieve the Start Level service, since it will be needed
        // to set the start level of the installed bundles.
        StartLevel sl = (StartLevel) context.getService(
                context.getServiceReference(org.osgi.service.startlevel.StartLevel.class.getName()));


        // Set the default bundle start level
        int ibsl = 60;
        try {
            String str = configProps.getProperty("karaf.startlevel.bundle");
            if (str != null) {
                ibsl = Integer.parseInt(str);
            }
        } catch (Throwable t) {
        }
        sl.setInitialBundleStartLevel(ibsl);


        // If we have a clean state, install everything
        if (framework.getBundleContext().getBundles().length == 1) {
            // The auto-install property specifies a space-delimited list of
            // bundle URLs to be automatically installed into each new profile;

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    }


    protected void setStartLevel(int level) throws Exception {
        BundleContext ctx = framework.getBundleContext();
        ServiceReference[] refs = ctx.getServiceReferences(StartLevel.class.getName(), null);
        StartLevel sl = (StartLevel) ctx.getService(refs[0]);
        sl.setStartLevel(level);
    }

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    private void startBundles(BundleContext context) throws Exception {


        // Retrieve the Start Level service, since it will be needed
        // to set the start level of the installed bundles.
        StartLevel sl = (StartLevel) context.getService(context.getServiceReference(StartLevel.class.getName()));


        // Set the default bundle start level
        int ibsl = Integer.parseInt(configProps.getProperty("karaf.startlevel.bundle", "60"));
        sl.setInitialBundleStartLevel(ibsl);


        for (BundleInfo info : startList) {
            Bundle bundle = context.installBundle(info.bundleLocation);           
            if (info.startLevel > 0) {
                sl.setBundleStartLevel(bundle, info.startLevel);
            }
            info.bundle = bundle;
        }


        for (BundleInfo info : startList) {

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            if (INSTALL_ACTION.equals(action)){
                BundleContext bundleContext = getBundleContext(actionRequest);
                
                //get the StartLeval object
                ServiceReference startLevelRef = bundleContext.getServiceReference(StartLevel.class.getCanonicalName());
                StartLevel startLevelService = (StartLevel) bundleContext.getService(startLevelRef);
                
                processInstallAction(actionRequest, bundleContext,startLevelService);
                
                listType = "all";
                searchString = "";

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                // retrieve bundle infos
                List<ExtendedBundleInfo> bundleInfos = new ArrayList<ExtendedBundleInfo>();
                
                // get the StartLeval object
                ServiceReference startLevelRef = bundleContext.getServiceReference(StartLevel.class.getCanonicalName());
                StartLevel startLevelService = (StartLevel) bundleContext.getService(startLevelRef);
                
                // get configured bundle Ids
                Set<Long> configurationBundleIds = getConfigurationBundleIds();
                
                Bundle[] bundles = bundleContext.getBundles();
                for (Bundle bundle : bundles) {
                    
                    if (searchString != "" && !matchBundle(bundle, searchString)){
                        continue;
                    }
                    
                    // construct the result bundleInfos by listType
                    if ("wab".equals(listType)){
                        if (checkWABBundle(bundle)){
                            ExtendedBundleInfo info = createExtendedBundleInfo(bundle, startLevelService, configurationBundleIds);
                            info.addContextPath(getContextPath(bundle));
                            bundleInfos.add(info);
                        }
                    }else if ("blueprint".equals(listType)){
                        if (checkBlueprintBundle(bundle)){
                            ExtendedBundleInfo info = createExtendedBundleInfo(bundle, startLevelService, configurationBundleIds);
                            
                            // currently, we try get the the blueprintContainer service to determine if a blueprint bundle is created
                            // TODO A better way is using a BlueprintListener to track all blueprint bundle events
                            String filter = "(&(osgi.blueprint.container.symbolicname=" + bundle.getSymbolicName()
                                            + ")(osgi.blueprint.container.version=" + bundle.getVersion() + "))";
                            ServiceReference[] serviceReferences = null;
                            try {
                                serviceReferences = bundleContext.getServiceReferences(BlueprintContainer.class.getName(), filter);
                            } catch (InvalidSyntaxException e) {
                                throw new RuntimeException(e);
                            }
                            if (serviceReferences != null && serviceReferences.length > 0){
                                info.setBlueprintState(BlueprintState.CREATED);
                            }
                            
                            bundleInfos.add(info);
                        }
                    }else if ("system".equals(listType)){
                        if (checkSysBundle(bundle,startLevelService)){
                            ExtendedBundleInfo info = createExtendedBundleInfo(bundle, startLevelService, configurationBundleIds);
                            bundleInfos.add(info);
                        }
                    }else if ("configuration".equals(listType)){
                        if (checkConfigurationBundle(bundle,configurationBundleIds)){
                            ExtendedBundleInfo info = createExtendedBundleInfo(bundle, startLevelService, configurationBundleIds);
                            bundleInfos.add(info);
                        }
                    }else{
                        ExtendedBundleInfo info = createExtendedBundleInfo(bundle, startLevelService, configurationBundleIds);
                        bundleInfos.add(info);
                    }
                }
                
                Collections.sort(bundleInfos, new BundleIdDescComparator());
                renderRequest.setAttribute("extendedBundleInfos", bundleInfos);
                
                // set the values to render attribute
                renderRequest.setAttribute("listTypeValue", listType);
                renderRequest.setAttribute("searchStringValue", searchString);
                
                renderRequest.setAttribute("initStartLevel", startLevelService.getInitialBundleStartLevel());
                
                if (bundleInfos.size() == 0) {
                    addWarningMessage(renderRequest, getLocalizedString(renderRequest, "consolebase.bundlemanager.warn.nobundlesfound"));
                }

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    private final Integer getStartLevel( Bundle bundle )
    {
        if ( bundle.getState() != Bundle.UNINSTALLED )
        {
            StartLevel sl = getStartLevel();
            if ( sl != null )
            {
                return new Integer( sl.getBundleStartLevel( bundle ) );
            }
        }


        // bundle has been uninstalled or StartLevel service is not available
        return null;

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