/*
* @(#)ServerRequestImpl.java 1.73 04/04/07
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
/*
* Licensed Materials - Property of IBM
* RMI-IIOP v1.0
* Copyright IBM Corp. 1998 1999 All Rights Reserved
*
* US Government Users Restricted Rights - Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
*/
package com.sun.corba.se.impl.corba;
import org.omg.CORBA.Any;
import org.omg.CORBA.Context;
import org.omg.CORBA.NamedValue;
import org.omg.CORBA.NVList;
import org.omg.CORBA.TypeCode;
import org.omg.CORBA.TCKind;
import org.omg.CORBA.ServerRequest;
import org.omg.CORBA.Bounds;
import org.omg.CORBA.portable.InputStream;
import org.omg.CORBA.portable.OutputStream;
import org.omg.CORBA.CompletionStatus;
import com.sun.corba.se.spi.orb.ORB ;
import com.sun.corba.se.spi.protocol.CorbaMessageMediator;
import com.sun.corba.se.spi.logging.CORBALogDomains ;
import com.sun.corba.se.impl.logging.ORBUtilSystemException ;
public class ServerRequestImpl extends ServerRequest {
///////////////////////////////////////////////////////////////////////////
// data members
private ORB _orb = null;
private ORBUtilSystemException _wrapper = null;
private String _opName = null;
private NVList _arguments = null;
private Context _ctx = null;
private InputStream _ins = null;
// booleans to check for various operation invocation restrictions
private boolean _paramsCalled = false;
private boolean _resultSet = false;
private boolean _exceptionSet = false;
private Any _resultAny = null;
private Any _exception = null;
public ServerRequestImpl (CorbaMessageMediator req, ORB orb) {
_opName = req.getOperationName();
_ins = (InputStream)req.getInputObject();
_ctx = null; // if we support contexts, this would
// presumably also be available on
// the server invocation
_orb = orb;
_wrapper = ORBUtilSystemException.get( orb,
CORBALogDomains.OA_INVOCATION ) ;
}
public String operation() {
return _opName;
}
public void arguments(NVList args)
{
if (_paramsCalled)
throw _wrapper.argumentsCalledMultiple() ;
if (_exceptionSet)
throw _wrapper.argumentsCalledAfterException() ;
if (args == null )
throw _wrapper.argumentsCalledNullArgs() ;
_paramsCalled = true;
NamedValue arg = null;
for (int i=0; i < args.count() ; i++) {
try {
arg = args.item(i);
} catch (Bounds e) {
throw _wrapper.boundsCannotOccur(e) ;
}
try {
if ((arg.flags() == org.omg.CORBA.ARG_IN.value) ||
(arg.flags() == org.omg.CORBA.ARG_INOUT.value)) {
// unmarshal the value into the Any
arg.value().read_value(_ins, arg.value().type());
}
} catch ( Exception ex ) {
throw _wrapper.badArgumentsNvlist( ex ) ;
}
}
// hang on to the NVList for marshaling the result
_arguments = args;
_orb.getPIHandler().setServerPIInfo( _arguments );
_orb.getPIHandler().invokeServerPIIntermediatePoint();
}
public void set_result(Any res) {
// check for invocation restrictions
if (!_paramsCalled)
throw _wrapper.argumentsNotCalled() ;
if (_resultSet)
throw _wrapper.setResultCalledMultiple() ;
if (_exceptionSet)
throw _wrapper.setResultAfterException() ;
if ( res == null )
throw _wrapper.setResultCalledNullArgs() ;
_resultAny = res;
_resultSet = true;
// Notify portable interceptors of the result so that
// ServerRequestInfo.result() functions as desired.
_orb.getPIHandler().setServerPIInfo( _resultAny );
// actual marshaling of the reply msg header and params takes place
// after the DSI returns control to the ORB.
}
public void set_exception(Any exc)
{
// except can be called by the DIR at any time (CORBA 2.2 section 6.3).
if ( exc == null )
throw _wrapper.setExceptionCalledNullArgs() ;
// Ensure that the Any contains a SystemException or a
// UserException. If the UserException is not a declared exception,
// the client will get an UNKNOWN exception.
TCKind kind = exc.type().kind();
if ( kind != TCKind.tk_except )
throw _wrapper.setExceptionCalledBadType() ;
_exception = exc;
// Inform Portable interceptors of the exception that was set
// so sending_exception can return the right value.
_orb.getPIHandler().setServerPIExceptionInfo( _exception );
// The user can only call arguments once and not at all after
// set_exception. (internal flags ensure this). However, the user
// can call set_exception multiple times. Therefore, we only
// invoke receive_request the first time set_exception is
// called (if they haven't already called arguments).
if( !_exceptionSet && !_paramsCalled ) {
// We need to invoke intermediate points here.
_orb.getPIHandler().invokeServerPIIntermediatePoint();
}
_exceptionSet = true;
// actual marshaling of the reply msg header and exception takes place
// after the DSI returns control to the ORB.
}
/** This is called from the ORB after the DynamicImplementation.invoke
* returns. Here we set the result if result() has not already been called.
* @return the exception if there is one (then ORB will not call
* marshalReplyParams()) otherwise return null.
*/
public Any checkResultCalled()
{
// Two things to be checked (CORBA 2.2 spec, section 6.3):
// 1. Unless it calls set_exception(), the DIR must call arguments()
// exactly once, even if the operation signature contains
// no parameters.
// 2. Unless set_exception() is called, if the invoked operation has a
// non-void result type, set_result() must be called exactly once
// before the DIR returns.
if ( _paramsCalled && _resultSet ) // normal invocation return
return null;
else if ( _paramsCalled && !_resultSet && !_exceptionSet ) {
try {
// Neither a result nor an exception has been set.
// Assume that the return type is void. If this is not so,
// the client will throw a MARSHAL exception while
// unmarshaling the return value.
TypeCode result_tc = _orb.get_primitive_tc(
org.omg.CORBA.TCKind.tk_void);
_resultAny = _orb.create_any();
_resultAny.type(result_tc);
_resultSet = true;
return null;
} catch ( Exception ex ) {
throw _wrapper.dsiResultException(
CompletionStatus.COMPLETED_MAYBE, ex ) ;
}
} else if ( _exceptionSet )
return _exception;
else {
throw _wrapper.dsimethodNotcalled(
CompletionStatus.COMPLETED_MAYBE ) ;
}
}
/** This is called from the ORB after the DynamicImplementation.invoke
* returns. Here we marshal the return value and inout/out params.
*/
public void marshalReplyParams(OutputStream os)
{
// marshal the operation return value
_resultAny.write_value(os);
// marshal the inouts/outs
NamedValue arg = null;
for (int i=0; i < _arguments.count() ; i++) {
try {
arg = _arguments.item(i);
} catch (Bounds e) {}
if ((arg.flags() == org.omg.CORBA.ARG_OUT.value) ||
(arg.flags() == org.omg.CORBA.ARG_INOUT.value)) {
arg.value().write_value(os);
}
}
}
public Context ctx()
{
if ( !_paramsCalled || _resultSet || _exceptionSet )
throw _wrapper.contextCalledOutOfOrder() ;
throw _wrapper.contextNotImplemented() ;
}
}
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