Package javax.rmi.CORBA
Class Util
java.lang.Object
javax.rmi.CORBA.Util
Provides utility methods that can be used by stubs and ties to
perform common operations.
-
Field Summary
FieldsModifier and TypeFieldDescriptionprivate static final String
private static final String
private static UtilDelegate
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic Object
copyObject
(Object obj, ORB orb) Copies or connects an object.static Object[]
copyObjects
(Object[] obj, ORB orb) Copies or connects an array of objects.private static Object
createDelegateIfSpecified
(String classKey, String defaultClassName) static ValueHandler
Returns a singleton instance of a class that implements theValueHandler
interface.static String
getCodebase
(Class clz) Returns the codebase, if any, for the given class.private static Properties
Load the orb.properties file.static Tie
Returns the tie (if any) for a given target object.private static void
static boolean
The isLocal method has the same semantics as the ObjectImpl._is_local method, except that it can throw a RemoteException.static Class
loadClass
(String className, String remoteCodebase, ClassLoader loader) Returns a class instance for the specified class.private static Class
loadDelegateClass
(String className) static RemoteException
Maps a SystemException to a RemoteException.static Object
readAny
(InputStream in) Reads a java.lang.Object as a CORBA any.static void
registerTarget
(Tie tie, Remote target) Registers a target for a tie.static void
unexportObject
(Remote target) Removes the associated tie from an internal table and callsTie.deactivate()
to deactivate the object.static RemoteException
wrapException
(Throwable orig) Wraps an exception thrown by an implementation method.static void
writeAbstractObject
(OutputStream out, Object obj) Writes a java.lang.Object as either a value or a CORBA Object.static void
writeAny
(OutputStream out, Object obj) Writes any java.lang.Object as a CORBA any.static void
writeRemoteObject
(OutputStream out, Object obj) Writes a java.lang.Object as a CORBA Object.
-
Field Details
-
utilDelegate
-
UtilClassKey
- See Also:
-
defaultUtilImplName
- See Also:
-
-
Constructor Details
-
Util
private Util()
-
-
Method Details
-
mapSystemException
Maps a SystemException to a RemoteException.- Parameters:
ex
- the SystemException to map.- Returns:
- the mapped exception.
-
writeAny
Writes any java.lang.Object as a CORBA any.- Parameters:
out
- the stream in which to write the any.obj
- the object to write as an any.
-
readAny
Reads a java.lang.Object as a CORBA any.- Parameters:
in
- the stream from which to read the any.- Returns:
- the object read from the stream.
-
writeRemoteObject
Writes a java.lang.Object as a CORBA Object. Ifobj
is an exported RMI-IIOP server object, the tie is found and wired toobj
, then written toout.write_Object(org.omg.CORBA.Object)
. Ifobj
is a CORBA Object, it is written toout.write_Object(org.omg.CORBA.Object)
.- Parameters:
out
- the stream in which to write the object.obj
- the object to write.
-
writeAbstractObject
Writes a java.lang.Object as either a value or a CORBA Object. Ifobj
is a value object or a stub object, it is written toout.write_abstract_interface(java.lang.Object)
. Ifobj
is an exported RMI-IIOP server object, the tie is found and wired toobj
, then written toout.write_abstract_interface(java.lang.Object)
.- Parameters:
out
- the stream in which to write the object.obj
- the object to write.
-
registerTarget
Registers a target for a tie. Adds the tie to an internal table and callsTie.setTarget(java.rmi.Remote)
on the tie object.- Parameters:
tie
- the tie to register.target
- the target for the tie.
-
unexportObject
Removes the associated tie from an internal table and callsTie.deactivate()
to deactivate the object.- Parameters:
target
- the object to unexport.- Throws:
NoSuchObjectException
- if the target object does not exist
-
getTie
Returns the tie (if any) for a given target object.- Parameters:
target
- the Remote to get the Tie for- Returns:
- the tie or null if no tie is registered for the given target.
-
createValueHandler
Returns a singleton instance of a class that implements theValueHandler
interface.- Returns:
- a class which implements the ValueHandler interface.
-
getCodebase
Returns the codebase, if any, for the given class.- Parameters:
clz
- the class to get a codebase for.- Returns:
- a space-separated list of URLs, or null.
-
loadClass
public static Class loadClass(String className, String remoteCodebase, ClassLoader loader) throws ClassNotFoundException Returns a class instance for the specified class.The spec for this method is the "Java to IDL language mapping", ptc/00-01-06.
In Java SE Platform, this method works as follows:
- Find the first non-null ClassLoader on the call stack and attempt to load the class using this ClassLoader.
- If the first step fails, and if remoteCodebase is non-null and useCodebaseOnly is false, then call java.rmi.server.RMIClassLoader.loadClass(remoteCodebase, className).
- If remoteCodebase is null or useCodebaseOnly is true, then call java.rmi.server.RMIClassLoader.loadClass(className).
- If a class was not successfully loaded by step 1, 2, or 3, and loader is non-null, then call loader.loadClass(className).
- If a class was successfully loaded by step 1, 2, 3, or 4, then return the loaded class, else throw ClassNotFoundException.
- Parameters:
className
- the name of the class.remoteCodebase
- a space-separated list of URLs at which the class might be found. May be null.loader
- a ClassLoader that may be used to load the class if all other methods fail.- Returns:
- the
Class
object representing the loaded class. - Throws:
ClassNotFoundException
- if class cannot be loaded.
-
isLocal
The isLocal method has the same semantics as the ObjectImpl._is_local method, except that it can throw a RemoteException. The _is_local() method is provided so that stubs may determine if a particular object is implemented by a local servant and hence local invocation APIs may be used.- Parameters:
stub
- the stub to test.- Returns:
- The _is_local() method returns true if the servant incarnating the object is located in the same process as the stub and they both share the same ORB instance. The _is_local() method returns false otherwise. The default behavior of _is_local() is to return false.
- Throws:
RemoteException
- The Java to IDL specification does not specify the conditions that cause a RemoteException to be thrown.
-
wrapException
Wraps an exception thrown by an implementation method. It returns the corresponding client-side exception.- Parameters:
orig
- the exception to wrap.- Returns:
- the wrapped exception.
-
copyObjects
Copies or connects an array of objects. Used by local stubs to copy any number of actual parameters, preserving sharing across parameters as necessary to support RMI semantics.- Parameters:
obj
- the objects to copy or connect.orb
- the ORB.- Returns:
- the copied or connected objects.
- Throws:
RemoteException
- if any object could not be copied or connected.
-
copyObject
Copies or connects an object. Used by local stubs to copy an actual parameter, result object, or exception.- Parameters:
obj
- the object to copy.orb
- the ORB.- Returns:
- the copy or connected object.
- Throws:
RemoteException
- if the object could not be copied or connected.
-
createDelegateIfSpecified
-
loadDelegateClass
- Throws:
ClassNotFoundException
-
getORBPropertiesFile
Load the orb.properties file. -
isCustomSerializationPermitted
private static void isCustomSerializationPermitted()
-