| /* Util.java -- |
| Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package javax.rmi.CORBA; |
| |
| import org.omg.CORBA.Any; |
| import org.omg.CORBA.BAD_PARAM; |
| import org.omg.CORBA.COMM_FAILURE; |
| import org.omg.CORBA.CompletionStatus; |
| import org.omg.CORBA.INVALID_TRANSACTION; |
| import org.omg.CORBA.INV_OBJREF; |
| import org.omg.CORBA.MARSHAL; |
| import org.omg.CORBA.NO_PERMISSION; |
| import org.omg.CORBA.OBJECT_NOT_EXIST; |
| import org.omg.CORBA.OMGVMCID; |
| import org.omg.CORBA.ORB; |
| import org.omg.CORBA.SystemException; |
| import org.omg.CORBA.TRANSACTION_REQUIRED; |
| import org.omg.CORBA.TRANSACTION_ROLLEDBACK; |
| import org.omg.CORBA.TypeCode; |
| import org.omg.CORBA.portable.InputStream; |
| import org.omg.CORBA.portable.OutputStream; |
| |
| import gnu.javax.rmi.CORBA.DelegateFactory; |
| |
| import java.rmi.AccessException; |
| import java.rmi.MarshalException; |
| import java.rmi.NoSuchObjectException; |
| import java.rmi.Remote; |
| import java.rmi.RemoteException; |
| import java.rmi.ServerError; |
| import java.rmi.ServerException; |
| import java.rmi.UnexpectedException; |
| import java.rmi.server.RMIClassLoader; |
| |
| import javax.transaction.InvalidTransactionException; |
| import javax.transaction.TransactionRequiredException; |
| import javax.transaction.TransactionRolledbackException; |
| |
| /** |
| * Provides utility methods used by stubs and ties to perform common operations. |
| * The functionality is forwarded to the enclosed UtilDelegate. This delegate |
| * can be altered by setting the system property "javax.rmi.CORBA.UtilClass" to |
| * the name of the alternative class that must implement {@link UtilDelegate}. |
| * |
| * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) |
| */ |
| public class Util |
| { |
| /** |
| * The delegate, responsible for all functionality. |
| */ |
| static UtilDelegate delegate = (UtilDelegate) DelegateFactory.getInstance(DelegateFactory.UTIL); |
| |
| /** |
| * Prevents this class from being instantiated. |
| */ |
| private Util() |
| { |
| } |
| |
| /** |
| * Used by local stubs to create a copy of the object. The object must be |
| * Serializable for this operation to succeed. Strings are not copied and |
| * 1D-3D string arrays are only cloned. |
| */ |
| public static java.lang.Object copyObject(java.lang.Object object, ORB orb) |
| throws RemoteException |
| { |
| return delegate.copyObject(object, orb); |
| } |
| |
| /** |
| * Used by local stubs to create a multiple copies of the object, preserving |
| * sharing accross the parameters if necessary. |
| */ |
| public static java.lang.Object[] copyObjects(java.lang.Object[] object, |
| ORB orb) |
| throws RemoteException |
| { |
| return delegate.copyObjects(object, orb); |
| } |
| |
| /** |
| * Get the value handler that Serializes Java objects to and from CDR (GIOP) |
| * streams. |
| * |
| * When using the default Util implementation, the class of the returned |
| * handler can be altered by setting by setting the system property |
| * "javax.rmi.CORBA.ValueHandlerClass" to the name of the alternative class |
| * that must implement {@link ValueHandler}. |
| */ |
| public static ValueHandler createValueHandler() |
| { |
| return delegate.createValueHandler(); |
| } |
| |
| /** |
| * This call is finally delegated to {@link RMIClassLoader#getClassAnnotation}; |
| */ |
| public static String getCodebase(Class clz) |
| { |
| return delegate.getCodebase(clz); |
| } |
| |
| /** |
| * Get the Tie that handles invocations on the given target. If the target/Tie |
| * pair has not been previously registered using {@link #registerTarget}, |
| * this method tries to locate a tie class by the name pattern. If this |
| * succeeds, the tie-target pair is also registered. |
| * |
| * @return the Tie. |
| */ |
| public static Tie getTie(Remote target) |
| { |
| return delegate.getTie(target); |
| } |
| |
| /** |
| * Checks if the given stub is local. The implementation it delegates call to |
| * {@link ObjectImpl#_is_local(). |
| * |
| * @param stub a stub to check. |
| * @return true if the stub is local, false otherwise. |
| * |
| * @throws RemoteException if the {@link ObjectImpl#_is_local()} throws a |
| * {@link org.omg.CORBA.SystemException}. |
| */ |
| public static boolean isLocal(Stub stub) |
| throws RemoteException |
| { |
| return delegate.isLocal(stub); |
| } |
| |
| /** |
| * Load the class. The method uses class loaders from the call stact first. If |
| * this fails, the further behaviour depends on the System Property |
| * "java.rmi.server.useCodebaseOnly" with default value "false". |
| * |
| * <ul> |
| * <li>If remoteCodebase is non-null and useCodebaseOnly is "false" then call |
| * java.rmi.server.RMIClassLoader.loadClass (remoteCodebase, className)</li> |
| * <li> If remoteCodebase is null or useCodebaseOnly is true then call |
| * java.rmi.server.RMIClassLoader.loadClass(className)</li> |
| * <li>If a class is still not successfully loaded and the loader != null |
| * then try Class.forName(className, false, loader). </li> |
| * </ul> |
| * |
| * @param className the name of the class. |
| * @param remoteCodebase the codebase. |
| * @param loader the class loader. |
| * @return the loaded class. |
| * |
| * @throws ClassNotFoundException of the class cannot be loaded. |
| */ |
| public static Class loadClass(String className, String remoteCodebase, |
| ClassLoader loader) |
| throws ClassNotFoundException |
| { |
| return delegate.loadClass(className, remoteCodebase, loader); |
| } |
| |
| /** |
| * Converts CORBA {@link SystemException} into RMI {@link RemoteException}. |
| * The exception is converted as defined in the following table: |
| * <p> |
| * <table border = "1"> |
| * <tr> |
| * <th>CORBA Exception</th> |
| * <th>RMI Exception</th> |
| * </tr> |
| * <tr> |
| * <td>{@link COMM_FAILURE}</td> |
| * <td>{@link MarshalException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link INV_OBJREF}</td> |
| * <td>{@link NoSuchObjectException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link NO_PERMISSION}</td> |
| * <td>{@link AccessException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link MARSHAL}</td> |
| * <td>{@link MarshalException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link BAD_PARAM} (all other cases)</td> |
| * <td>{@link MarshalException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link OBJECT_NOT_EXIST}</td> |
| * <td>{@link NoSuchObjectException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link TRANSACTION_REQUIRED}</td> |
| * <td>{@link TransactionRequiredException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link TRANSACTION_ROLLEDBACK}</td> |
| * <td>{@link TransactionRolledbackException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link INVALID_TRANSACTION}</td> |
| * <td>{@link InvalidTransactionException}</td> |
| * </tr> |
| * <tr> |
| * <td bgcolor="lightgray">Any other {@link SystemException}</td> |
| * <td bgcolor="lightgray">{@link RemoteException}</td> |
| * </tr> |
| * </table> |
| * </p> |
| * <p> |
| * The exception detailed message always consists of |
| * <ol> |
| * <li>the string "CORBA "</li> |
| * <li>the CORBA name of the system exception</li> |
| * <li>single space</li> |
| * <li>the hexadecimal value of the system exception's minor code, preceeded |
| * by 0x (higher bits contain {@link OMGVMCID}).</li> |
| * <li>single space</li> |
| * <li>the {@link CompletionStatus} of the exception: "Yes", "No" or "Maybe".</li> |
| * </ol> |
| * The subsequent content is not part of the official RMI-IIOP standart and is |
| * added for compatibility with Sun's implementation: |
| * <ol> |
| * <li>the phrase "<code>; nested exception is: <i>(line feed)(tab)</i></code>"</li> |
| * <li>the full name of the mapped SystemException, as returned by |
| * Class.getName().</li> |
| * <li>the ": ". |
| * <li>the value, returned by .getMessage() of the passed parameter.</li> |
| * </ol> |
| * <p> |
| * For instance, if the Internet connection was refused: |
| * </p><p> |
| * <code>CORBA COMM_FAILURE 0x535500C9 No</code> |
| * </p><p> |
| * The original CORBA exception is set as the cause of the RemoteException |
| * being created. |
| * </p> |
| */ |
| public static RemoteException mapSystemException(SystemException ex) |
| { |
| return delegate.mapSystemException(ex); |
| } |
| |
| /** |
| * Register the Tie-target pair. As the Tie is a Servant, it can potentially |
| * be connected to several objects and hence may be registered with several |
| * targets. |
| */ |
| public static void registerTarget(Tie tie, Remote target) |
| { |
| delegate.registerTarget(tie, target); |
| } |
| |
| /** |
| * Deactivate the associated Tie, if it is found and is not connected to other |
| * registered targets. Independing from the POA policies, the transparent |
| * reactivation will not be possible. |
| */ |
| public static void unexportObject(Remote target) |
| throws NoSuchObjectException |
| { |
| delegate.unexportObject(target); |
| } |
| |
| /** |
| * Converts the exception that was thrown by the implementation method on a |
| * server side into RemoteException that can be transferred and re-thrown on a |
| * client side. The method converts exceptions as defined in the following |
| * table: <table border = "1"> |
| * <tr> |
| * <th>Exception to map (or subclass)</th> |
| * <th>Maps into</th> |
| * </tr> |
| * <tr> |
| * <td>{@link Error}</td> |
| * <td>{@link ServerError}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link RemoteException}</td> |
| * <td>{@link ServerException}</td> |
| * </tr> |
| * <tr> |
| * <td>{@link SystemException}</td> |
| * <td>wrapException({@link #mapSystemException})</td> |
| * </tr> |
| * <tr> |
| * <td>{@link RuntimeException}</td> |
| * <td><b>rethrows</b></td> |
| * </tr> |
| * <tr> |
| * <td>Any other exception</td> |
| * <td>{@link UnexpectedException}</td> |
| * </tr> |
| * </table> |
| * |
| * @param ex an exception that was thrown on a server side implementation. |
| * |
| * @return the corresponding RemoteException unless it is a RuntimeException. |
| * |
| * @throws RuntimeException the passed exception if it is an instance of |
| * RuntimeException. |
| * |
| * @specnote It is the same behavior, as in Suns implementations 1.4.0-1.5.0. |
| */ |
| public static RemoteException wrapException(Throwable exception) |
| { |
| return delegate.wrapException(exception); |
| } |
| |
| /** |
| * Write abstract interface to the CORBA output stream. The write format is |
| * matching CORBA abstract interface. Remotes and CORBA objects are written as |
| * objects, other classes are supposed to be value types and are written as |
| * such. {@link Remote}s are processed as defined in |
| * {@link #writeRemoteObject}. The written data contains discriminator, |
| * defining, that was written. Another method that writes the same content is |
| * {@link org.omg.CORBA_2_3.portable.OutputStream#write_abstract_interface(java.lang.Object)}. |
| * |
| * @param output a stream to write to, must be |
| * {@link org.omg.CORBA_2_3.portable.OutputStream}. |
| * |
| * @param object an object to write, must be CORBA object, Remote |
| */ |
| public static void writeAbstractObject(OutputStream output, |
| java.lang.Object object) |
| { |
| delegate.writeAbstractObject(output, object); |
| } |
| |
| /** |
| * Write the passed java object to the output stream in the form of the CORBA |
| * {@link Any}. This includes creating an writing the object {@link TypeCode} |
| * first. Such Any can be later read by a non-RMI-IIOP CORBA implementation |
| * and manipulated, for instance, by means, provided in |
| * {@link org.omg.DynamicAny.DynAny}. Depending from the passed value, this |
| * method writes CORBA object, value type or value box. For value types Null |
| * is written with the abstract interface, its typecode having repository id |
| * "IDL:omg.org/CORBA/AbstractBase:1.0" and the empty string name. |
| * |
| * @param output the object to write. |
| * @param object the java object that must be written in the form of the CORBA |
| * {@link Any}. |
| */ |
| public static void writeAny(OutputStream output, java.lang.Object object) |
| { |
| delegate.writeAny(output, object); |
| } |
| |
| /** |
| * Read Any from the input stream. |
| */ |
| public static java.lang.Object readAny(InputStream input) |
| { |
| return delegate.readAny(input); |
| } |
| |
| /** |
| * Write the passed parameter to the output stream as CORBA object. If the |
| * parameter is an instance of Remote and not an instance of Stub, the method |
| * instantiates a suitable Tie, connects the parameter to this Tie and then |
| * connects that Tie to the ORB that is requested from the output stream. Then |
| * the object reference is written to the stream, making remote invocations |
| * possible (the ORB is started and activated, if required). This method is |
| * used in write_value(..) method group in |
| * {@link org.omg.CORBA_2_3.portable.OutputStream} and also may be called |
| * directly from generated Stubs and Ties. |
| * |
| * @param output a stream to write to, must be |
| * org.omg.CORBA_2_3.portable.OutputStream |
| * @param object an object to write. |
| */ |
| public static void writeRemoteObject(OutputStream output, |
| java.lang.Object object) |
| { |
| delegate.writeRemoteObject(output, object); |
| } |
| } |