Class ClassUtils
- java.lang.Object
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- org.apache.felix.scr.impl.inject.internal.ClassUtils
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public class ClassUtils extends java.lang.Object
Utility methods for class handling used by method and field references.
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Field Summary
Fields Modifier and Type Field Description static java.lang.Class<?>
BUNDLE_CONTEXT_CLASS
static java.lang.Class<?>
COLLECTION_CLASS
static java.lang.Class<?>
COMPONENT_CONTEXT_CLASS
static java.lang.Class<?>
COMPONENTS_SERVICE_OBJECTS_CLASS
static java.lang.String
FORMATTER_LOGGER_CLASS
static java.lang.Class<?>
INTEGER_CLASS
static java.lang.Class<?>
LIST_CLASS
static java.lang.String
LOGGER_CLASS
static java.lang.String
LOGGER_FACTORY_CLASS
private static org.osgi.framework.BundleContext
m_context
static org.osgi.util.tracker.ServiceTracker<?,?>
m_packageAdmin
static java.lang.Class<?>
MAP_CLASS
static java.lang.Class<?>
MAP_ENTRY_CLASS
private static java.lang.Class<?>
OBJECT_CLASS
private static java.lang.String
PACKAGEADMIN_CLASS
static java.lang.Class<?>
SERVICE_REFERENCE_CLASS
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Constructor Summary
Constructors Constructor Description ClassUtils()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static void
close()
static java.lang.Class<?>
getClassFromComponentClassLoader(java.lang.Class<?> componentClass, java.lang.String className, ComponentLogger logger)
Returns the class object representing the class of the field reference The class loader of the component class is used to load the service class.static java.lang.Object
getPackageAdmin()
static java.lang.String
getPackageName(java.lang.Class<?> clazz)
Returns the name of the package to which the class belongs or an empty string if the class is in the default package.static void
setBundleContext(org.osgi.framework.BundleContext bundleContext)
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Field Detail
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PACKAGEADMIN_CLASS
private static final java.lang.String PACKAGEADMIN_CLASS
- See Also:
- Constant Field Values
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OBJECT_CLASS
private static final java.lang.Class<?> OBJECT_CLASS
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SERVICE_REFERENCE_CLASS
public static final java.lang.Class<?> SERVICE_REFERENCE_CLASS
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COMPONENTS_SERVICE_OBJECTS_CLASS
public static final java.lang.Class<?> COMPONENTS_SERVICE_OBJECTS_CLASS
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MAP_CLASS
public static final java.lang.Class<?> MAP_CLASS
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MAP_ENTRY_CLASS
public static final java.lang.Class<?> MAP_ENTRY_CLASS
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COLLECTION_CLASS
public static final java.lang.Class<?> COLLECTION_CLASS
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LIST_CLASS
public static final java.lang.Class<?> LIST_CLASS
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COMPONENT_CONTEXT_CLASS
public static final java.lang.Class<?> COMPONENT_CONTEXT_CLASS
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BUNDLE_CONTEXT_CLASS
public static final java.lang.Class<?> BUNDLE_CONTEXT_CLASS
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INTEGER_CLASS
public static final java.lang.Class<?> INTEGER_CLASS
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LOGGER_CLASS
public static final java.lang.String LOGGER_CLASS
- See Also:
- Constant Field Values
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FORMATTER_LOGGER_CLASS
public static final java.lang.String FORMATTER_LOGGER_CLASS
- See Also:
- Constant Field Values
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LOGGER_FACTORY_CLASS
public static final java.lang.String LOGGER_FACTORY_CLASS
- See Also:
- Constant Field Values
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m_context
private static org.osgi.framework.BundleContext m_context
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m_packageAdmin
public static volatile org.osgi.util.tracker.ServiceTracker<?,?> m_packageAdmin
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Method Detail
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getClassFromComponentClassLoader
public static java.lang.Class<?> getClassFromComponentClassLoader(java.lang.Class<?> componentClass, java.lang.String className, ComponentLogger logger)
Returns the class object representing the class of the field reference The class loader of the component class is used to load the service class.It may well be possible, that the class loader of the target class cannot see the service object class, for example if the service reference is inherited from a component class of another bundle.
- Returns:
- The class object for the referred to service or
null
if the class loader of thetargetClass
cannot see that class.
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setBundleContext
public static void setBundleContext(org.osgi.framework.BundleContext bundleContext)
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getPackageAdmin
public static java.lang.Object getPackageAdmin()
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close
public static void close()
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getPackageName
public static java.lang.String getPackageName(java.lang.Class<?> clazz)
Returns the name of the package to which the class belongs or an empty string if the class is in the default package.
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