diff options
Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/CORBA/Poa/LocalDelegate.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/CORBA/Poa/LocalDelegate.java | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/CORBA/Poa/LocalDelegate.java b/gcc-4.4.3/libjava/classpath/gnu/CORBA/Poa/LocalDelegate.java new file mode 100644 index 000000000..72dd8f0cf --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/CORBA/Poa/LocalDelegate.java @@ -0,0 +1,385 @@ +/* LocalDelegate.java -- + Copyright (C) 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 gnu.CORBA.Poa; + +import gnu.CORBA.CDR.AbstractCdrOutput; +import gnu.CORBA.IOR; +import gnu.CORBA.IorProvider; +import gnu.CORBA.StreamBasedRequest; + +import org.omg.CORBA.ARG_INOUT; +import org.omg.CORBA.Bounds; +import org.omg.CORBA.Context; +import org.omg.CORBA.ContextList; +import org.omg.CORBA.ExceptionList; +import org.omg.CORBA.NO_IMPLEMENT; +import org.omg.CORBA.NVList; +import org.omg.CORBA.NamedValue; +import org.omg.CORBA.OBJECT_NOT_EXIST; +import org.omg.CORBA.ORB; +import org.omg.CORBA.Request; +import org.omg.CORBA.TypeCodePackage.BadKind; +import org.omg.CORBA.UnknownUserException; +import org.omg.CORBA.portable.ApplicationException; +import org.omg.CORBA.portable.InputStream; +import org.omg.CORBA.portable.InvokeHandler; +import org.omg.CORBA.portable.ObjectImpl; +import org.omg.CORBA.portable.OutputStream; +import org.omg.CORBA.portable.RemarshalException; +import org.omg.PortableServer.ServantLocatorPackage.CookieHolder; + +import java.util.Arrays; + +/** + * A local delegate, transferring all object requests to the locally available + * servant. This class is involved in handling the method invocations on the + * local object, obtained by POA.create_reference_with_id. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class LocalDelegate + extends org.omg.CORBA_2_3.portable.Delegate + implements IorProvider +{ + /** + * The same servant as an invocation handler. + */ + gnuServantObject object; + + String operation; + + public final gnuPOA poa; + + final byte[] Id; + + /** + * Create a local delegate, forwarding requests to the servant that must also + * be an invocation handler. + */ + public LocalDelegate(gnuServantObject an_object, gnuPOA a_poa, byte[] an_id) + { + object = an_object; + poa = a_poa; + Id = an_id; + } + + /** + * Get the IOR of the connected object. + */ + public IOR getIor() + { + return object.getIor(); + } + + public Request request(org.omg.CORBA.Object target, String method) + { + operation = method; + + LocalRequest rq = new LocalRequest(object, poa, Id); + rq.setOperation(method); + rq.setORB(orb(target)); + return rq; + } + + public void release(org.omg.CORBA.Object target) + { + } + + public boolean is_equivalent(org.omg.CORBA.Object target, + org.omg.CORBA.Object other) + { + if (target == other) + return true; + else if (target instanceof ObjectImpl && other instanceof ObjectImpl) + { + org.omg.CORBA.portable.Delegate a = null; + org.omg.CORBA.portable.Delegate b = null; + try + { + a = ((ObjectImpl) target)._get_delegate(); + b = ((ObjectImpl) other)._get_delegate(); + } + catch (Exception ex) + { + // Unable to get one of the delegates. + return false; + } + if (a instanceof LocalDelegate && b instanceof LocalDelegate) + { + byte[] k1 = ((LocalDelegate) a).Id; + byte[] k2 = ((LocalDelegate) b).Id; + return Arrays.equals(k1, k2); + } + else + return false; + } + else + return false; + } + + /** + * Always return false. + */ + public boolean non_existent(org.omg.CORBA.Object target) + { + return false; + } + + /** + * Get hash code. + */ + public int hash(org.omg.CORBA.Object target, int maximum) + { + return hashCode() % maximum; + } + + /** + * Check if this object could be named by the given repository id. + * + * @param idl_id the repository id to check. + * + * @return true if it is one of the possible repository ids of this object. + */ + public boolean is_a(org.omg.CORBA.Object a_servant, String idl_id) + { + String[] maybe = object._ids(); + for (int i = 0; i < maybe.length; i++) + { + if (maybe[i].equals(idl_id)) + return true; + } + return false; + } + + /** + * Return <code>this</code>. + */ + public org.omg.CORBA.Object duplicate(org.omg.CORBA.Object target) + { + return target; + } + + /** + * Create request for using with DII. + */ + public Request create_request(org.omg.CORBA.Object target, Context context, + String method, NVList parameters, NamedValue returns, + ExceptionList exceptions, ContextList ctx_list) + { + operation = method; + + LocalRequest rq = new LocalRequest(object, poa, Id); + rq.setOperation(method); + rq.set_args(parameters); + rq.set_result(returns); + rq.set_exceptions(exceptions); + rq.set_context_list(ctx_list); + return rq; + } + + /** + * Create request for using with DII. + */ + public Request create_request(org.omg.CORBA.Object target, Context context, + String method, NVList parameters, NamedValue returns) + { + operation = method; + + LocalRequest rq = new LocalRequest(object, poa, Id); + rq.setOperation(method); + rq.set_args(parameters); + rq.set_result(returns); + return rq; + } + + /** + * Not in use. + */ + public org.omg.CORBA.Object get_interface_def(org.omg.CORBA.Object target) + { + throw new NO_IMPLEMENT(); + } + + /** + * Create a request to invoke the method of this CORBA object. + * + * @param operation the name of the method to invoke. + * @param response_expected specifies if this is one way message or the + * response to the message is expected. + * + * @return the stream where the method arguments should be written. + */ + public org.omg.CORBA.portable.OutputStream request( + org.omg.CORBA.Object target, String method, boolean response_expected) + { + operation = method; + + // Check if the object is not explicitly deactivated. + AOM.Obj e = poa.aom.get(Id); + if (e != null && e.isDeactiveted()) + { + if (poa.servant_activator != null || poa.servant_locator != null) + { + // This will force the subsequent activation. + object.setServant(null); + e.setServant(null); + e.setDeactivated(false); + } + else + throw new OBJECT_NOT_EXIST("Deactivated"); + } + + LocalRequest rq = new LocalRequest(object, poa, Id); + rq.setOperation(method); + rq.setORB(orb(target)); + return rq.getParameterStream(); + } + + /** + * Return the associated invocation handler. + */ + public InvokeHandler getHandler(String method, CookieHolder cookie) + { + return object.getHandler(method, cookie, false); + } + + /** + * Return the ORB of the associated POA. The parameter is not in use. + */ + public ORB orb(org.omg.CORBA.Object target) + { + return poa.orb(); + } + + /** + * Make an invocation. + * + * @param target not in use. + * @param output the stream request that should be returned by + * {@link #m_request} in this method. + * @throws ApplicationException if the use exception is thrown by the servant + * method. + */ + public InputStream invoke(org.omg.CORBA.Object target, OutputStream output) + throws ApplicationException + { + try + { + StreamBasedRequest sr = (StreamBasedRequest) output; + + LocalRequest lr = (LocalRequest) sr.request; + InvokeHandler handler = lr.object.getHandler(lr.operation(), lr.cookie, + false); + + if (handler instanceof DynamicImpHandler) + { + // The local request known how to handle it, but the different + // method must be called. + lr.invoke(); + + // The encapsulation will inherit orb, endian, charsets, etc. + AbstractCdrOutput buf = sr.createEncapsulation(); + + // Write all request parameters to the buffer stream. + if (lr.env().exception() != null) + { + try + { + UnknownUserException uex = (UnknownUserException) lr.env().exception(); + throw new ApplicationException(uex.except.type().id(), + uex.except.create_input_stream()); + } + catch (BadKind ex) + { + InternalError ierr = new InternalError(); + ierr.initCause(ex); + throw ierr; + } + } + if (lr.return_value() != null) + lr.return_value().write_value(buf); + + NamedValue a; + try + { + for (int i = 0; i < lr.arguments().count(); i++) + { + a = lr.arguments().item(i); + if (a.flags() == ARG_INOUT.value + || a.flags() == ARG_INOUT.value) + { + a.value().write_value(buf); + } + } + } + catch (Bounds ex) + { + InternalError ierr = new InternalError(); + ierr.initCause(ex); + throw ierr; + } + + return buf.create_input_stream(); + } + else + { + LocalRequest lrq = (LocalRequest) sr.request; + return lrq.s_invoke(handler); + } + } + catch (gnuForwardRequest f) + { + try + { + return ((ObjectImpl) f.forward_reference)._invoke(f.forward_reference._request( + operation, true)); + } + catch (RemarshalException e) + { + // Never thrown in this place by Classpath implementation. + throw new NO_IMPLEMENT(); + } + } + } + + public void releaseReply(org.omg.CORBA.Object target, InputStream input) + { + release(target); + } +}
\ No newline at end of file |