Package org.apache.xbean.osgi.bundle.util

Class BundleUtils

  • public class BundleUtils
extends java.lang.Object
    Version:
    $Rev: 1347954 $ $Date: 2012-06-08 11:08:40 +0200 (Fri, 08 Jun 2012) $

    • Constructor Summary

      Constructors 
      Constructor Description
      BundleUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean canStart​(org.osgi.framework.Bundle bundle)
      If the bundle fulfills the conditions below, it could be started a.
      static boolean canStop​(org.osgi.framework.Bundle bundle)
      If the bundle fulfills the conditions below, it could be stopped a.
      static boolean canUninstall​(org.osgi.framework.Bundle bundle)
      If the bundle fulfills the conditions below, it could be un-installed a.
      static org.osgi.framework.Bundle getBundle​(java.lang.ClassLoader classLoader, boolean unwrap)
      Returns bundle (if any) associated with the classloader.
      static org.osgi.framework.Bundle getContextBundle​(boolean unwrap)
      Returns bundle (if any) associated with current thread's context classloader.
      static java.net.URL getEntry​(org.osgi.framework.Bundle bundle, java.lang.String name)
      1, If the bundle was installed with reference directory mode return the file URL directly.
      static java.util.Enumeration<java.lang.String> getEntryPaths​(org.osgi.framework.Bundle bundle, java.lang.String name)
      Works like Bundle.getEntryPaths(String) but also returns paths in attached fragment bundles.
      static java.net.URL getNestedEntry​(org.osgi.framework.Bundle bundle, java.lang.String jarEntryName, java.lang.String subEntryName)  
      static java.util.LinkedHashSet<org.osgi.framework.Bundle> getWiredBundles​(org.osgi.framework.Bundle bundle)  
      static java.util.LinkedHashSet<org.osgi.framework.Bundle> getWiredBundles​(org.osgi.service.packageadmin.PackageAdmin packageAdmin, org.osgi.framework.Bundle bundle)  
      static boolean isFragment​(org.osgi.framework.Bundle bundle)  
      static boolean isResolved​(org.osgi.framework.Bundle bundle)
      Based on the constant field values, if it is bigger than the RESOLVED status value, the bundle has been resolved by the framework
      static void resolve​(org.osgi.framework.Bundle bundle)
      resolve method will try to load the Object.class, the behavior triggers a resolved request to the OSGI framework.
      static java.io.File toFile​(java.lang.String url)
      Translate the reference:file:// style URL to the underlying file instance
      static java.io.File toFile​(java.net.URL url)  
      static java.io.File toFile​(org.osgi.framework.Bundle bundle)  
      static java.lang.String toReferenceFileLocation​(java.io.File file)  
      static org.osgi.framework.Bundle unwrapBundle​(org.osgi.framework.Bundle bundle)
      If the given bundle is a DelegatingBundle this function will return the main application bundle backing the DelegatingBundle.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • BundleUtils

        public BundleUtils()

    • Method Detail

      • isResolved

        public static boolean isResolved​(org.osgi.framework.Bundle bundle)
        Based on the constant field values, if it is bigger than the RESOLVED status value, the bundle has been resolved by the framework
        Parameters:
        bundle -
        Returns:
        true if the bundle is resolved, or false if not.

      • resolve

        public static void resolve​(org.osgi.framework.Bundle bundle)
        resolve method will try to load the Object.class, the behavior triggers a resolved request to the OSGI framework.
        Parameters:
        bundle -

      • canStart

        public static boolean canStart​(org.osgi.framework.Bundle bundle)
        If the bundle fulfills the conditions below, it could be started a. Not in the UNINSTALLED status. b. Not in the STARTING status. c. Not a fragment bundle.
        Parameters:
        bundle -
        Returns:

      • canStop

        public static boolean canStop​(org.osgi.framework.Bundle bundle)
        If the bundle fulfills the conditions below, it could be stopped a. Not in the UNINSTALLED status. b. Not in the STOPPING status. c. Not a fragment bundle.
        Parameters:
        bundle -
        Returns:

      • canUninstall

        public static boolean canUninstall​(org.osgi.framework.Bundle bundle)
        If the bundle fulfills the conditions below, it could be un-installed a. Not in the UNINSTALLED status.
        Parameters:
        bundle -
        Returns:

      • isFragment

        public static boolean isFragment​(org.osgi.framework.Bundle bundle)

      • getContextBundle

        public static org.osgi.framework.Bundle getContextBundle​(boolean unwrap)
        Returns bundle (if any) associated with current thread's context classloader. Invoking this method is equivalent to getBundle(Thread.currentThread().getContextClassLoader(), unwrap)

      • getBundle

        public static org.osgi.framework.Bundle getBundle​(java.lang.ClassLoader classLoader,
                                                  boolean unwrap)
        Returns bundle (if any) associated with the classloader.
        Parameters:
        classLoader -
        unwrap - if true and if the bundle associated with the context classloader is a DelegatingBundle, this function will return the main application bundle backing the DelegatingBundle. Otherwise, the bundle associated with the context classloader is returned as is. See BundleClassLoader.getBundle(boolean) for more information.
        Returns:
        The bundle associated with the classloader. Might be null.

      • unwrapBundle

        public static org.osgi.framework.Bundle unwrapBundle​(org.osgi.framework.Bundle bundle)
        If the given bundle is a DelegatingBundle this function will return the main application bundle backing the DelegatingBundle. Otherwise, the bundle passed in is returned as is.

      • getEntryPaths

        public static java.util.Enumeration<java.lang.String> getEntryPaths​(org.osgi.framework.Bundle bundle,
                                                                    java.lang.String name)
        Works like Bundle.getEntryPaths(String) but also returns paths in attached fragment bundles.
        Parameters:
        bundle -
        name -
        Returns:

      • getEntry

        public static java.net.URL getEntry​(org.osgi.framework.Bundle bundle,
                                    java.lang.String name)
                             throws java.net.MalformedURLException
        1, If the bundle was installed with reference directory mode return the file URL directly. 2, For traditional package bundle, Works like Bundle.getEntry(String) In addition to the searching abaove, it also checks attached fragment bundles for the given entry.
        Parameters:
        bundle -
        name -
        Returns:
        Throws:
        java.net.MalformedURLException

      • getNestedEntry

        public static java.net.URL getNestedEntry​(org.osgi.framework.Bundle bundle,
                                          java.lang.String jarEntryName,
                                          java.lang.String subEntryName)
                                   throws java.net.MalformedURLException
        Throws:
        java.net.MalformedURLException

      • toFile

        public static java.io.File toFile​(org.osgi.framework.Bundle bundle)

      • toFile

        public static java.io.File toFile​(java.net.URL url)

      • toFile

        public static java.io.File toFile​(java.lang.String url)
        Translate the reference:file:// style URL to the underlying file instance
        Parameters:
        url -
        Returns:

      • toReferenceFileLocation

        public static java.lang.String toReferenceFileLocation​(java.io.File file)
                                                throws java.io.IOException
        Throws:
        java.io.IOException

      • getWiredBundles

        public static java.util.LinkedHashSet<org.osgi.framework.Bundle> getWiredBundles​(org.osgi.framework.Bundle bundle)

      • getWiredBundles

        public static java.util.LinkedHashSet<org.osgi.framework.Bundle> getWiredBundles​(org.osgi.service.packageadmin.PackageAdmin packageAdmin,
                                                                                 org.osgi.framework.Bundle bundle)