From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../classpath/gnu/CORBA/Poa/gnuServantObject.java | 825 +++++++++++++++++++++ 1 file changed, 825 insertions(+) create mode 100644 libjava/classpath/gnu/CORBA/Poa/gnuServantObject.java (limited to 'libjava/classpath/gnu/CORBA/Poa/gnuServantObject.java') diff --git a/libjava/classpath/gnu/CORBA/Poa/gnuServantObject.java b/libjava/classpath/gnu/CORBA/Poa/gnuServantObject.java new file mode 100644 index 000000000..17ef452a7 --- /dev/null +++ b/libjava/classpath/gnu/CORBA/Poa/gnuServantObject.java @@ -0,0 +1,825 @@ +/* gnuServantObject.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.GIOP.ReplyHeader; +import gnu.CORBA.IorDelegate; +import gnu.CORBA.IorObject; +import gnu.CORBA.Interceptor.gnuServerRequestInfo; +import gnu.CORBA.typecodes.RecordTypeCode; +import gnu.CORBA.IOR; +import gnu.CORBA.IorProvider; +import gnu.CORBA.Minor; +import gnu.CORBA.ObjectCreator; +import gnu.CORBA.Unexpected; +import gnu.CORBA.ResponseHandlerImpl; +import gnu.CORBA.StreamHolder; + +import gnu.java.lang.CPStringBuilder; + +import org.omg.CORBA.Any; +import org.omg.CORBA.BAD_OPERATION; +import org.omg.CORBA.BAD_PARAM; +import org.omg.CORBA.CompletionStatus; +import org.omg.CORBA.OBJECT_NOT_EXIST; +import org.omg.CORBA.OBJ_ADAPTER; +import org.omg.CORBA.ORB; +import org.omg.CORBA.SystemException; +import org.omg.CORBA.TCKind; +import org.omg.CORBA.TRANSIENT; +import org.omg.CORBA.UserException; +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.ResponseHandler; +import org.omg.PortableInterceptor.ForwardRequest; +import org.omg.PortableInterceptor.ServerRequestInterceptorOperations; +import org.omg.PortableServer.CurrentOperations; +import org.omg.PortableServer.DynamicImplementation; +import org.omg.PortableServer.ImplicitActivationPolicyValue; +import org.omg.PortableServer.POA; +import org.omg.PortableServer.POAManager; +import org.omg.PortableServer.POAManagerPackage.State; +import org.omg.PortableServer.Servant; +import org.omg.PortableServer.ServantLocatorPackage.CookieHolder; +import org.omg.PortableServer.ServantRetentionPolicyValue; +import org.omg.PortableServer.portable.Delegate; + +import java.io.IOException; + +import java.util.Arrays; + +/** + * Represents a CORBA object, being locally served by the associated servant. + * The calls to the object are forwarded to the calls to the servant. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class gnuServantObject extends ObjectImpl + implements org.omg.CORBA.Object, + InvokeHandler, + CurrentOperations, + IorProvider +{ + /** + * The associated servant that must also implement the {@link InvokeHandler} + * interface. This value can be temporary null if the object was created using + * POA.create_reference or POA.create_reference_with_id, private to force + * always to use {@link setServant}. + */ + private Servant servant; + + /** + * The Id of this object. + */ + public final byte[] Id; + + /** + * The poa that takes care about this object. + */ + public final gnuPOA poa; + + /** + * The POA manager, used to control the work of this object. + */ + public final POAManager manager; + + /** + * The orb. + */ + public final ORB_1_4 orb; + + /** + * The object repository ids, if they were specified separately. Normally, the + * ids are requested from the servant. + */ + public final String[] repository_ids; + + /** + * True indicates that the NO_RETAIN policy applies for the servant. + * The servant must be discarded after the each call. + */ + boolean noRetain; + + /** + * Create an object with no connected servant. The servant must be set later. + * + * @param a_repository_ids an array of repository ids, can be null (then ids + * will be requested from the servant). + * @param an_id the object id. + * @param a_poa the POA. + */ + public gnuServantObject(String[] a_repository_ids, byte[] an_id, + gnuPOA a_poa, ORB_1_4 an_orb + ) + { + repository_ids = a_repository_ids; + Id = an_id; + manager = a_poa.the_POAManager(); + poa = a_poa; + orb = an_orb; + + noRetain = poa.applies(ServantRetentionPolicyValue.NON_RETAIN); + } + + /** + * Get the IOR as it would be for this object. + */ + public IOR getIor() + { + return orb.getLocalIor(this); + } + + /** + * Create a servant object, associated with the passed servant. + * + * @param a_servant a servant, serving this object. + * @param an_id an Object Id for this object. + * + * @throws BAD_PARAM if the passed servant is not an {@link InvokeHandler}. + */ + public gnuServantObject(Servant a_servant, byte[] an_id, ORB_1_4 an_orb, + gnuPOA a_poa + ) + { + Id = an_id; + setServant(a_servant); + poa = a_poa; + if (poa != null) + { + manager = poa.the_POAManager(); + } + else + { + manager = null; + } + repository_ids = null; + orb = an_orb; + + noRetain = poa != null && poa.applies(ServantRetentionPolicyValue.NON_RETAIN); + } + + /** + * Set a servant, if it has not been previously set. + * + * @param a_servant a servant to set, can be null to indicate the necessity + * for the subsequent activation. + * + * @throws BAD_PARAM if the passed servant is not an {@link InvokeHandler} or + * {@link DynamicImplementation} and also not null. + */ + public void setServant(Servant a_servant) + { + if (a_servant != null && + !(a_servant instanceof InvokeHandler) && + !(a_servant instanceof DynamicImplementation) + ) + { + throw new BAD_PARAM("Must be either InvokeHandler or " + + "DynamicImplementation, but is " + a_servant + ); + } + servant = a_servant; + } + + /** + * Returns the associated servant. + */ + public Servant getServant() + { + return servant; + } + + /** + * Return the associated invocation handler. + */ + public InvokeHandler getHandler(String operation, CookieHolder cookie, + boolean forwarding_allowed + ) throws gnuForwardRequest + { + if (servant != null && !noRetain) + { + return servantToHandler(servant); + } + else + { + // Use servant locator to locate the servant. + if (poa.servant_locator != null) + { + try + { + servant = + poa.servant_locator.preinvoke(Id, poa, operation, cookie); + return servantToHandler(servant); + } + catch (org.omg.PortableServer.ForwardRequest forw_ex) + { + if (forwarding_allowed) + { + throw new gnuForwardRequest(forw_ex.forward_reference); + } + else + { + servant = + ForwardedServant.create(forw_ex.forward_reference); + return servantToHandler(servant); + } + } + } + else + // Use servant activator to locate the servant. + if (poa.applies(ImplicitActivationPolicyValue.IMPLICIT_ACTIVATION) && + poa.applies(ServantRetentionPolicyValue.RETAIN) + ) + { + try + { + poa.activate_object_with_id(Id, servant, forwarding_allowed); + servant = poa.id_to_servant(Id); + return servantToHandler(servant); + } + catch (gnuForwardRequest forwarded) + { + throw forwarded; + } + catch (Exception ex) + { + BAD_OPERATION bad = + new BAD_OPERATION("Unable to activate", Minor.Activation, + CompletionStatus.COMPLETED_NO + ); + bad.initCause(ex); + throw bad; + } + } + else if (poa.default_servant != null) + { + servant = poa.default_servant; + return servantToHandler(servant); + } + + // No servant and no servant manager - throw exception. + else + { + throw new BAD_OPERATION("Unable to activate", Minor.Activation, + CompletionStatus.COMPLETED_NO + ); + } + } + } + + /** + * Convert the servant to invocation handler. + */ + public InvokeHandler servantToHandler(Servant a_servant) + { + if (a_servant instanceof InvokeHandler) + { + return (InvokeHandler) a_servant; + } + else if (a_servant instanceof DynamicImplementation) + { + return new DynamicImpHandler((DynamicImplementation) a_servant); + } + else + { + throw new BAD_OPERATION(a_servant + + " must be either InvokeHandler or " + "POA DynamicImplementation" + ); + } + } + + /** + * Create a servant object, associated with the passed servant. Requests the + * object id from the servant. Depending on the policies of the servants POA, + * the calls are eithe not synchronized or synchronized on POA or ORB. + * + * @param a_servant a servant, serving this object. + * @param an_id an Object Id for this object. + */ + public gnuServantObject(Servant a_servant, gnuPOA a_poa) + { + this(a_servant, a_servant._object_id(), (ORB_1_4) a_servant._orb(), a_poa); + } + + /** + * Delegates call to servant, passing the poa and Id. + */ + public String[] _ids() + { + if (repository_ids == null) + { + return getServant()._all_interfaces(poa, Id); + } + else + { + return repository_ids; + } + } + + /** + * Gets a string representation. + */ + public String toString() + { + CPStringBuilder b = new CPStringBuilder("Servant object ("); + for (int i = 0; i < Id.length; i++) + { + b.append(Integer.toHexString(Id [ i ] & 0xFF)); + b.append(' '); + } + b.append(')'); + return b.toString(); + } + + /** + * Always returns true. + */ + public boolean _is_local() + { + return true; + } + + /** + * 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(String idl_id) + { + String[] maybe = _ids(); + for (int i = 0; i < maybe.length; i++) + { + if (maybe [ i ].equals(idl_id)) + { + return true; + } + } + return false; + } + + /** + * Get an ORB, associated with the servant of this object. + * + * @return + */ + public ORB _orb() + { + return getServant()._orb(); + } + + /** + * Handle the invocation (delegates to servant). + * + * @throws TRANSIENT minor 0x535503e9 if the POA is in discarding mode. + * @throws OBJ_ADAPTER minor 0x535503ea if the POA is inactivated. + * @throws OBJECT_NOT_EXISTS minor 0x535503ec if this object is inactivated. + * + * @specnote see {@link POAManagerOperations} for specnotes about the minor + * codes. + */ + public OutputStream _invoke(String method, InputStream input, + ResponseHandler r_handler + ) throws SystemException + { + boolean intercept = false; + ServerRequestInterceptorOperations interceptor = null; + gnuServerRequestInfo info = null; + ResponseHandlerImpl i_handler = null; + + try + { + if (orb.iServer != null && + r_handler instanceof ResponseHandlerImpl + ) + { + interceptor = orb.iServer; + + i_handler = (ResponseHandlerImpl) r_handler; + + info = + new gnuServerRequestInfo(this, i_handler.request_header, + i_handler.reply_header + ); + intercept = true; + + interceptor.receive_request_service_contexts(info); + } + + try + { + CookieHolder cookie = null; + AOM.Obj self = poa.aom.get(Id); + + if (poa.servant_locator != null) + { + // If the servant locator is in use, it is always responsible + // for providing the servant. + self.servant = servant = null; + cookie = new CookieHolder(); + } + else if (self != null && self.isDeactiveted()) + { + if (poa.applies( + ImplicitActivationPolicyValue.IMPLICIT_ACTIVATION + ) && + poa.servant_activator != null + ) + { + // Reset the servant, forcing the subsequent activation. + servant = null; + } + else + { + throw new OBJECT_NOT_EXIST("Object deactivated", + 0x535503ec, CompletionStatus.COMPLETED_NO + ); + } + } + + InvokeHandler handler = getHandler(method, cookie, true); + + Delegate d = null; + + try + { + d = servant._get_delegate(); + orb.currents.put(Thread.currentThread(), this); + } + catch (Exception ex) + { + // In some cases exception is thrown if the delegate is not set. + } + if (d instanceof ServantDelegateImpl) + { + // If the delegate is already set, check maybe we can + // reuse the existing instance. + if (((ServantDelegateImpl) d).object != this) + { + servant._set_delegate(new ServantDelegateImpl(servant, poa, Id)); + } + } + else + { + servant._set_delegate(new ServantDelegateImpl(servant, poa, Id)); + } + + try + { + switch (manager.get_state().value()) + { + case State._ACTIVE : + + OutputStream rt; + try + { + if (intercept) + { + interceptor.receive_request(info); + } + + rt = handler._invoke(method, input, r_handler); + + if (intercept) + { + // Handler is casted into i_handler. + if (i_handler.isExceptionReply()) + { + info.m_reply_header.reply_status = + ReplyHeader.USER_EXCEPTION; + + // Make Any, holding the user exception. + Any a = orb.create_any(); + OutputStream buf = i_handler.getBuffer(); + InputStream in = buf.create_input_stream(); + String uex_idl = "unknown"; + try + { + in.mark(Integer.MAX_VALUE); + uex_idl = in.read_string(); + in.reset(); + } + catch (IOException e) + { + throw new Unexpected(e); + } + + try + { + UserException exception = + ObjectCreator.readUserException(uex_idl, + in + ); + + ObjectCreator.insertWithHelper(a, + exception + ); + } + catch (Exception e) + { + // Failed due any reason, insert without + // helper. + a.insert_Streamable(new StreamHolder( + buf.create_input_stream() + ) + ); + + RecordTypeCode r = + new RecordTypeCode(TCKind.tk_except); + r.setId(uex_idl); + r.setName(ObjectCreator.getDefaultName( + uex_idl + ) + ); + } + + info.m_usr_exception = a; + interceptor.send_exception(info); + } + else + { + info.m_reply_header.reply_status = + ReplyHeader.NO_EXCEPTION; + interceptor.send_reply(info); + } + } + } + catch (SystemException sys_ex) + { + if (intercept) + { + info.m_reply_header.reply_status = + ReplyHeader.SYSTEM_EXCEPTION; + info.m_sys_exception = sys_ex; + interceptor.send_exception(info); + } + throw sys_ex; + } + + return rt; + + case State._HOLDING : + + // The holding mode is implemented + // relying on the holding capabilites of the network + // support (if any). + // TODO FIXME in more recent CORBA applications, the + // client + // ORB can free the connection and wait for a server side + // notification about the completed request. Implement + // this + // as soon as JDK specification would allow bidirectional + // policy. + int sleep = 5; + int max = 500; + + // Wait till the state will be switched into some other + // mode. + while (manager.get_state().value() == State._HOLDING) + { + try + { + Thread.sleep(sleep); + if (sleep < max) + { + sleep = max; + } + } + catch (InterruptedException ex) + { + } + } + + // Handle another mode. + return _invoke(method, input, r_handler); + + case State._DISCARDING : + throw new TRANSIENT("Discarding mode", 0x535503e9, + CompletionStatus.COMPLETED_NO + ); + + case State._INACTIVE : + throw new OBJ_ADAPTER("POA deactivated", 0x535503ea, + CompletionStatus.COMPLETED_NO + ); + + default : + throw new InternalError(); // No more states. + } + } + finally + { + if (poa.servant_locator != null) + { + poa.servant_locator.postinvoke(Id, poa, method, + cookie.value, servant + ); + } + } + } + finally + { + orb.currents.remove(Thread.currentThread()); + if (noRetain) + servant = null; + } + } + catch (ForwardRequest fex) + { + // May be thrown by interceptor. + if (intercept) + { + Forwarding: + while (true) + { + info.m_reply_header.reply_status = + ReplyHeader.LOCATION_FORWARD; + info.m_forward_reference = fex.forward; + try + { + interceptor.send_other(info); + break Forwarding; + } + catch (ForwardRequest fex2) + { + info.m_forward_reference = fex2.forward; + fex.forward = info.m_forward_reference; + } + } + } + throw new gnuForwardRequest(fex.forward); + } + catch (gnuForwardRequest fex) + { + // May be thrown during activation. + if (intercept) + { + Forwarding: + while (true) + { + info.m_reply_header.reply_status = + ReplyHeader.LOCATION_FORWARD; + info.m_forward_reference = fex.forward_reference; + try + { + interceptor.send_other(info); + break Forwarding; + } + catch (ForwardRequest fex2) + { + info.m_forward_reference = fex2.forward; + fex.forward_reference = (ObjectImpl) fex2.forward; + } + } + } + throw fex; + } + } + + /** + * Compare with another object for equality, comparing the object keys. + */ + public boolean equals(java.lang.Object other) + { + if (other instanceof gnuServantObject) + { + gnuServantObject o = (gnuServantObject) other; + + return Arrays.equals(o.Id, Id); + } + else + { + return false; + } + } + + /** + * Get the hash code, based on the object key. + */ + public int hashCode() + { + long s = 0; + int v = 1; + for (int i = 0; i < Id.length; i++) + { + s += Id [ i ] * v; + if (s > Integer.MAX_VALUE) + { + s = s % Integer.MAX_VALUE; + v = 1; + } + v = v * 8; + } + return (int) (s % Integer.MAX_VALUE); + } + + /** + * Get the object id. + */ + public byte[] get_object_id() + { + return Id; + } + + /** + * Get POA. + */ + public POA get_POA() + { + return poa; + } + + /** + * Returns without action. + */ + public void _release() + { + } + + /** + * Returns without action. + */ + public void _releaseReply(InputStream stream) + { + } + + /** + * Checks if this object is equivalent to another instance. These objects are + * assumed equal if they are connected to the same orb and poa under the same + * Id, regardless of they delegates. + * + * @param other instance to check. + * @return + */ + public boolean _is_equivalent(org.omg.CORBA.Object other) + { + if (other instanceof gnuServantObject) + { + gnuServantObject g = (gnuServantObject) other; + return orb == g.orb && poa == g.poa && Arrays.equals(Id, g.Id); + } + else if (other instanceof IorObject) + { + IorObject ir = ((IorObject) other); + try + { + IorDelegate ird = (IorDelegate) ir._get_delegate(); + byte[] ior_id = poa.idFormIor(ird.getIor().key); + if (ior_id != null && Arrays.equals(ior_id, Id)) + { + return true; + } + else + { + return false; + } + } + catch (Exception ex) + { + // Non - typical delegate or very specific subclass of + // IOR_constructed_object. + return super._is_equivalent(other); + } + } + return super._is_equivalent(other); + } +} -- cgit v1.2.3