Java example source code file (PIHandlerImpl.java)
The PIHandlerImpl.java Java example source code/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.corba.se.impl.interceptors;
import java.util.*;
import java.io.IOException;
import org.omg.CORBA.Any;
import org.omg.CORBA.BAD_PARAM;
import org.omg.CORBA.BAD_POLICY;
import org.omg.CORBA.BAD_INV_ORDER;
import org.omg.CORBA.COMM_FAILURE;
import org.omg.CORBA.CompletionStatus;
import org.omg.CORBA.INTERNAL;
import org.omg.CORBA.NVList;
import org.omg.CORBA.OBJECT_NOT_EXIST;
import org.omg.CORBA.ORBPackage.InvalidName;
import org.omg.CORBA.SystemException;
import org.omg.CORBA.UserException;
import org.omg.CORBA.UNKNOWN;
import org.omg.CORBA.portable.ApplicationException;
import org.omg.CORBA.portable.RemarshalException;
import org.omg.IOP.CodecFactory;
import org.omg.PortableInterceptor.ForwardRequest;
import org.omg.PortableInterceptor.Current;
import org.omg.PortableInterceptor.Interceptor;
import org.omg.PortableInterceptor.LOCATION_FORWARD;
import org.omg.PortableInterceptor.ORBInitializer;
import org.omg.PortableInterceptor.ORBInitInfo;
import org.omg.PortableInterceptor.ORBInitInfoPackage.DuplicateName;
import org.omg.PortableInterceptor.SUCCESSFUL;
import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;
import org.omg.PortableInterceptor.TRANSPORT_RETRY;
import org.omg.PortableInterceptor.USER_EXCEPTION;
import org.omg.PortableInterceptor.PolicyFactory;
import org.omg.PortableInterceptor.ObjectReferenceTemplate;
import com.sun.corba.se.pept.encoding.OutputObject;
import com.sun.corba.se.spi.ior.IOR;
import com.sun.corba.se.spi.ior.ObjectKeyTemplate;
import com.sun.corba.se.spi.oa.ObjectAdapter;
import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.spi.orbutil.closure.ClosureFactory;
import com.sun.corba.se.spi.protocol.CorbaMessageMediator;
import com.sun.corba.se.spi.protocol.ForwardException;
import com.sun.corba.se.spi.protocol.PIHandler;
import com.sun.corba.se.spi.protocol.RetryType;
import com.sun.corba.se.spi.logging.CORBALogDomains;
import com.sun.corba.se.impl.logging.InterceptorsSystemException;
import com.sun.corba.se.impl.logging.ORBUtilSystemException;
import com.sun.corba.se.impl.logging.OMGSystemException;
import com.sun.corba.se.impl.corba.RequestImpl;
import com.sun.corba.se.impl.orbutil.ORBConstants;
import com.sun.corba.se.impl.orbutil.ORBUtility;
import com.sun.corba.se.impl.orbutil.StackImpl;
import com.sun.corba.se.impl.protocol.giopmsgheaders.ReplyMessage;
/**
* Provides portable interceptor functionality.
*/
public class PIHandlerImpl implements PIHandler
{
// REVISIT - delete these after framework merging.
boolean printPushPopEnabled = false;
int pushLevel = 0;
private void printPush()
{
if (! printPushPopEnabled) return;
printSpaces(pushLevel);
pushLevel++;
System.out.println("PUSH");
}
private void printPop()
{
if (! printPushPopEnabled) return;
pushLevel--;
printSpaces(pushLevel);
System.out.println("POP");
}
private void printSpaces(int n)
{
for (int i = 0; i < n; i++) {
System.out.print(" ");
}
}
private ORB orb;
InterceptorsSystemException wrapper;
ORBUtilSystemException orbutilWrapper;
OMGSystemException omgWrapper;
// A unique id used in ServerRequestInfo.
// This does not correspond to the GIOP request id.
private int serverRequestIdCounter = 0;
// Stores the codec factory for producing codecs
CodecFactory codecFactory = null;
// The arguments passed to the application's main method. May be null.
// This is used for ORBInitializers and set from set_parameters.
String[] arguments = null;
// The list of portable interceptors, organized by type:
private InterceptorList interceptorList;
// Cached information for optimization - do we have any interceptors
// registered of the given types? Set during ORB initialization.
private boolean hasIORInterceptors;
private boolean hasClientInterceptors; // temp always true
private boolean hasServerInterceptors;
// The class responsible for invoking interceptors
private InterceptorInvoker interceptorInvoker;
// There will be one PICurrent instantiated for every ORB.
private PICurrent current;
// This table contains a list of PolicyFactories registered using
// ORBInitInfo.registerPolicyFactory() method.
// Key for the table is PolicyType which is an Integer
// Value is PolicyFactory.
private HashMap policyFactoryTable;
// Table to convert from a ReplyMessage.? to a PI replyStatus short.
// Note that this table relies on the order and constants of
// ReplyMessage not to change.
private final static short REPLY_MESSAGE_TO_PI_REPLY_STATUS[] = {
SUCCESSFUL.value, // = ReplyMessage.NO_EXCEPTION
USER_EXCEPTION.value, // = ReplyMessage.USER_EXCEPTION
SYSTEM_EXCEPTION.value, // = ReplyMessage.SYSTEM_EXCEPTION
LOCATION_FORWARD.value, // = ReplyMessage.LOCATION_FORWARD
LOCATION_FORWARD.value, // = ReplyMessage.LOCATION_FORWARD_PERM
TRANSPORT_RETRY.value // = ReplyMessage.NEEDS_ADDRESSING_MODE
};
// ThreadLocal containing a stack to store client request info objects
// and a disable count.
private ThreadLocal threadLocalClientRequestInfoStack =
new ThreadLocal() {
protected Object initialValue() {
return new RequestInfoStack();
}
};
// ThreadLocal containing the current server request info object.
private ThreadLocal threadLocalServerRequestInfoStack =
new ThreadLocal() {
protected Object initialValue() {
return new RequestInfoStack();
}
};
public void close() {
orb = null;
wrapper = null;
orbutilWrapper = null;
omgWrapper = null;
codecFactory = null;
arguments = null;
interceptorList = null;
interceptorInvoker = null;
current = null;
policyFactoryTable = null;
threadLocalClientRequestInfoStack = null;
threadLocalServerRequestInfoStack = null;
}
// Class to contain all ThreadLocal data for ClientRequestInfo
// maintenance.
//
// We use an ArrayList instead since it is not thread-safe.
// RequestInfoStack is used quite frequently.
private final class RequestInfoStack extends Stack {
// Number of times a request has been made to disable interceptors.
// When this reaches 0, interception hooks are disabled. Any higher
// value indicates they are enabled.
// NOTE: The is only currently used on the client side.
public int disableCount = 0;
}
public PIHandlerImpl( ORB orb, String[] args ) {
this.orb = orb ;
wrapper = InterceptorsSystemException.get( orb,
CORBALogDomains.RPC_PROTOCOL ) ;
orbutilWrapper = ORBUtilSystemException.get( orb,
CORBALogDomains.RPC_PROTOCOL ) ;
omgWrapper = OMGSystemException.get( orb,
CORBALogDomains.RPC_PROTOCOL ) ;
arguments = args ;
// Create codec factory:
codecFactory = new CodecFactoryImpl( orb );
// Create new interceptor list:
interceptorList = new InterceptorList( wrapper );
// Create a new PICurrent.
current = new PICurrent( orb );
// Create new interceptor invoker, initially disabled:
interceptorInvoker = new InterceptorInvoker( orb, interceptorList,
current );
// Register the PI current and Codec factory objects
orb.getLocalResolver().register( ORBConstants.PI_CURRENT_NAME,
ClosureFactory.makeConstant( current ) ) ;
orb.getLocalResolver().register( ORBConstants.CODEC_FACTORY_NAME,
ClosureFactory.makeConstant( codecFactory ) ) ;
}
public void initialize() {
// If we have any orb initializers, make use of them:
if( orb.getORBData().getORBInitializers() != null ) {
// Create the ORBInitInfo object to pass to ORB intializers:
ORBInitInfoImpl orbInitInfo = createORBInitInfo();
// Make sure get_slot and set_slot are not called from within
// ORB initializers:
current.setORBInitializing( true );
// Call pre_init on all ORB initializers:
preInitORBInitializers( orbInitInfo );
// Call post_init on all ORB initializers:
postInitORBInitializers( orbInitInfo );
// Proprietary: sort interceptors:
interceptorList.sortInterceptors();
// Re-enable get_slot and set_slot to be called from within
// ORB initializers:
current.setORBInitializing( false );
// Ensure nobody makes any more calls on this object.
orbInitInfo.setStage( ORBInitInfoImpl.STAGE_CLOSED );
// Set cached flags indicating whether we have interceptors
// registered of a given type.
hasIORInterceptors = interceptorList.hasInterceptorsOfType(
InterceptorList.INTERCEPTOR_TYPE_IOR );
// XXX This must always be true, so that using the new generic
// RPC framework can pass info between the PI stack and the
// framework invocation stack. Temporary until Harold fixes
// this. Note that this must never be true until after the
// ORBInitializer instances complete executing.
//hasClientInterceptors = interceptorList.hasInterceptorsOfType(
//InterceptorList.INTERCEPTOR_TYPE_CLIENT );
hasClientInterceptors = true;
hasServerInterceptors = interceptorList.hasInterceptorsOfType(
InterceptorList.INTERCEPTOR_TYPE_SERVER );
// Enable interceptor invoker (not necessary if no interceptors
// are registered). This should be the last stage of ORB
// initialization.
interceptorInvoker.setEnabled( true );
}
}
/**
* ptc/00-08-06 p 205: "When an application calls ORB::destroy, the ORB
* 1) waits for all requests in progress to complete
* 2) calls the Interceptor::destroy operation for each interceptor
* 3) completes destruction of the ORB"
*
* This must be called at the end of ORB.destroy. Note that this is not
* part of the PIHandler interface, since ORBImpl implements the ORB interface.
*/
public void destroyInterceptors() {
interceptorList.destroyAll();
}
public void objectAdapterCreated( ObjectAdapter oa )
{
if (!hasIORInterceptors)
return ;
interceptorInvoker.objectAdapterCreated( oa ) ;
}
public void adapterManagerStateChanged( int managerId,
short newState )
{
if (!hasIORInterceptors)
return ;
interceptorInvoker.adapterManagerStateChanged( managerId, newState ) ;
}
public void adapterStateChanged( ObjectReferenceTemplate[]
templates, short newState )
{
if (!hasIORInterceptors)
return ;
interceptorInvoker.adapterStateChanged( templates, newState ) ;
}
/*
*****************
* Client PI hooks
*****************/
public void disableInterceptorsThisThread() {
if( !hasClientInterceptors ) return;
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalClientRequestInfoStack.get();
infoStack.disableCount++;
}
public void enableInterceptorsThisThread() {
if( !hasClientInterceptors ) return;
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalClientRequestInfoStack.get();
infoStack.disableCount--;
}
public void invokeClientPIStartingPoint()
throws RemarshalException
{
if( !hasClientInterceptors ) return;
if( !isClientPIEnabledForThisThread() ) return;
// Invoke the starting interception points and record exception
// and reply status info in the info object:
ClientRequestInfoImpl info = peekClientRequestInfoImplStack();
interceptorInvoker.invokeClientInterceptorStartingPoint( info );
// Check reply status. If we will not have another chance later
// to invoke the client ending points, do it now.
short replyStatus = info.getReplyStatus();
if( (replyStatus == SYSTEM_EXCEPTION.value) ||
(replyStatus == LOCATION_FORWARD.value) )
{
// Note: Transport retry cannot happen here since this happens
// before the request hits the wire.
Exception exception = invokeClientPIEndingPoint(
convertPIReplyStatusToReplyMessage( replyStatus ),
info.getException() );
if( exception == null ) {
// Do not throw anything. Otherwise, it must be a
// SystemException, UserException or RemarshalException.
} if( exception instanceof SystemException ) {
throw (SystemException)exception;
} else if( exception instanceof RemarshalException ) {
throw (RemarshalException)exception;
} else if( (exception instanceof UserException) ||
(exception instanceof ApplicationException) ) {
// It should not be possible for an interceptor to throw
// a UserException. By asserting instead of throwing the
// UserException, we need not declare anything but
// RemarshalException in the throws clause.
throw wrapper.exceptionInvalid() ;
}
}
else if( replyStatus != ClientRequestInfoImpl.UNINITIALIZED ) {
throw wrapper.replyStatusNotInit() ;
}
}
// Needed when an error forces a retry AFTER initiateClientPIRequest
// but BEFORE invokeClientPIStartingPoint.
public Exception makeCompletedClientRequest( int replyStatus,
Exception exception ) {
// 6763340
return handleClientPIEndingPoint( replyStatus, exception, false ) ;
}
public Exception invokeClientPIEndingPoint( int replyStatus,
Exception exception ) {
// 6763340
return handleClientPIEndingPoint( replyStatus, exception, true ) ;
}
public Exception handleClientPIEndingPoint(
int replyStatus, Exception exception, boolean invokeEndingPoint ) {
if( !hasClientInterceptors ) return exception;
if( !isClientPIEnabledForThisThread() ) return exception;
// Translate ReplyMessage.replyStatus into PI replyStatus:
// Note: this is also an assertion to make sure a valid replyStatus
// is passed in (IndexOutOfBoundsException will be thrown otherwise)
short piReplyStatus = REPLY_MESSAGE_TO_PI_REPLY_STATUS[replyStatus];
// Invoke the ending interception points and record exception
// and reply status info in the info object:
ClientRequestInfoImpl info = peekClientRequestInfoImplStack();
info.setReplyStatus( piReplyStatus );
info.setException( exception );
if (invokeEndingPoint) {
// 6763340
interceptorInvoker.invokeClientInterceptorEndingPoint( info );
piReplyStatus = info.getReplyStatus();
}
// Check reply status:
if( (piReplyStatus == LOCATION_FORWARD.value) ||
(piReplyStatus == TRANSPORT_RETRY.value) ) {
// If this is a forward or a retry, reset and reuse
// info object:
info.reset();
// fix for 6763340:
if (invokeEndingPoint) {
info.setRetryRequest( RetryType.AFTER_RESPONSE ) ;
} else {
info.setRetryRequest( RetryType.BEFORE_RESPONSE ) ;
}
// ... and return a RemarshalException so the orb internals know
exception = new RemarshalException();
} else if( (piReplyStatus == SYSTEM_EXCEPTION.value) ||
(piReplyStatus == USER_EXCEPTION.value) ) {
exception = info.getException();
}
return exception;
}
public void initiateClientPIRequest( boolean diiRequest ) {
if( !hasClientInterceptors ) return;
if( !isClientPIEnabledForThisThread() ) return;
// Get the most recent info object from the thread local
// ClientRequestInfoImpl stack:
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalClientRequestInfoStack.get();
ClientRequestInfoImpl info = null;
if (!infoStack.empty() ) {
info = (ClientRequestInfoImpl)infoStack.peek();
}
if (!diiRequest && (info != null) && info.isDIIInitiate() ) {
// In RequestImpl.doInvocation we already called
// initiateClientPIRequest( true ), so ignore this initiate.
info.setDIIInitiate( false );
} else {
// If there is no info object or if we are not retrying a request,
// push a new ClientRequestInfoImpl on the stack:
// 6763340: don't push unless this is not a retry
if( (info == null) || !info.getRetryRequest().isRetry() ) {
info = new ClientRequestInfoImpl( orb );
infoStack.push( info );
printPush();
// Note: the entry count is automatically initialized to 0.
}
// Reset the retry request flag so that recursive calls will
// push a new info object, and bump up entry count so we know
// when to pop this info object:
info.setRetryRequest( RetryType.NONE );
info.incrementEntryCount();
// KMC 6763340: I don't know why this wasn't set earlier,
// but we do not want a retry to pick up the previous
// reply status, so clear it here. Most likely a new
// info was pushed before, so that this was not a problem.
info.setReplyStatus( RequestInfoImpl.UNINITIALIZED ) ;
// If this is a DII request, make sure we ignore the next initiate.
if( diiRequest ) {
info.setDIIInitiate( true );
}
}
}
public void cleanupClientPIRequest() {
if( !hasClientInterceptors ) return;
if( !isClientPIEnabledForThisThread() ) return;
ClientRequestInfoImpl info = peekClientRequestInfoImplStack();
RetryType rt = info.getRetryRequest() ;
// fix for 6763340
if (!rt.equals( RetryType.BEFORE_RESPONSE )) {
// If the replyStatus has not yet been set, this is an indication
// that the ORB threw an exception before we had a chance to
// invoke the client interceptor ending points.
//
// _REVISIT_ We cannot handle any exceptions or ForwardRequests
// flagged by the ending points here because there is no way
// to gracefully handle this in any of the calling code.
// This is a rare corner case, so we will ignore this for now.
short replyStatus = info.getReplyStatus();
if (replyStatus == info.UNINITIALIZED ) {
invokeClientPIEndingPoint( ReplyMessage.SYSTEM_EXCEPTION,
wrapper.unknownRequestInvoke(
CompletionStatus.COMPLETED_MAYBE ) ) ;
}
}
// Decrement entry count, and if it is zero, pop it from the stack.
info.decrementEntryCount();
// fix for 6763340, and probably other cases (non-recursive retry)
if (info.getEntryCount() == 0 && !info.getRetryRequest().isRetry()) {
// RequestInfoStack<ClientRequestInfoImpl> infoStack =
// threadLocalClientRequestInfoStack.get();
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalClientRequestInfoStack.get();
infoStack.pop();
printPop();
}
}
public void setClientPIInfo(CorbaMessageMediator messageMediator)
{
if( !hasClientInterceptors ) return;
if( !isClientPIEnabledForThisThread() ) return;
peekClientRequestInfoImplStack().setInfo(messageMediator);
}
public void setClientPIInfo( RequestImpl requestImpl ) {
if( !hasClientInterceptors ) return;
if( !isClientPIEnabledForThisThread() ) return;
peekClientRequestInfoImplStack().setDIIRequest( requestImpl );
}
/*
*****************
* Server PI hooks
*****************/
public void invokeServerPIStartingPoint()
{
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
interceptorInvoker.invokeServerInterceptorStartingPoint( info );
// Handle SystemException or ForwardRequest:
serverPIHandleExceptions( info );
}
public void invokeServerPIIntermediatePoint()
{
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
interceptorInvoker.invokeServerInterceptorIntermediatePoint( info );
// Clear servant from info object so that the user has control over
// its lifetime:
info.releaseServant();
// Handle SystemException or ForwardRequest:
serverPIHandleExceptions( info );
}
public void invokeServerPIEndingPoint( ReplyMessage replyMessage )
{
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
// REVISIT: This needs to be done "early" for the following workaround.
info.setReplyMessage( replyMessage );
// REVISIT: This was done inside of invokeServerInterceptorEndingPoint
// but needs to be here for now. See comment in that method for why.
info.setCurrentExecutionPoint( info.EXECUTION_POINT_ENDING );
// It is possible we might have entered this method more than
// once (e.g. if an ending point threw a SystemException, then
// a new ServerResponseImpl is created).
if( !info.getAlreadyExecuted() ) {
int replyStatus = replyMessage.getReplyStatus();
// Translate ReplyMessage.replyStatus into PI replyStatus:
// Note: this is also an assertion to make sure a valid
// replyStatus is passed in (IndexOutOfBoundsException will be
// thrown otherwise)
short piReplyStatus =
REPLY_MESSAGE_TO_PI_REPLY_STATUS[replyStatus];
// Make forwarded IOR available to interceptors, if applicable:
if( ( piReplyStatus == LOCATION_FORWARD.value ) ||
( piReplyStatus == TRANSPORT_RETRY.value ) )
{
info.setForwardRequest( replyMessage.getIOR() );
}
// REVISIT: Do early above for now.
// Make reply message available to interceptors:
//info.setReplyMessage( replyMessage );
// Remember exception so we can tell if an interceptor changed it.
Exception prevException = info.getException();
// _REVISIT_ We do not have access to the User Exception at
// this point, so treat it as an UNKNOWN for now.
// Note that if this is a DSI call, we do have the user exception.
if( !info.isDynamic() &&
(piReplyStatus == USER_EXCEPTION.value) )
{
info.setException( omgWrapper.unknownUserException(
CompletionStatus.COMPLETED_MAYBE ) ) ;
}
// Invoke the ending interception points:
info.setReplyStatus( piReplyStatus );
interceptorInvoker.invokeServerInterceptorEndingPoint( info );
short newPIReplyStatus = info.getReplyStatus();
Exception newException = info.getException();
// Check reply status. If an interceptor threw a SystemException
// and it is different than the one that we came in with,
// rethrow it so the proper response can be constructed:
if( ( newPIReplyStatus == SYSTEM_EXCEPTION.value ) &&
( newException != prevException ) )
{
throw (SystemException)newException;
}
// If we are to forward the location:
if( newPIReplyStatus == LOCATION_FORWARD.value ) {
if( piReplyStatus != LOCATION_FORWARD.value ) {
// Treat a ForwardRequest as a ForwardException.
IOR ior = info.getForwardRequestIOR();
throw new ForwardException( orb, ior ) ;
}
else if( info.isForwardRequestRaisedInEnding() ) {
// Treat a ForwardRequest by changing the IOR.
replyMessage.setIOR( info.getForwardRequestIOR() );
}
}
}
}
public void setServerPIInfo( Exception exception ) {
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
info.setException( exception );
}
public void setServerPIInfo( NVList arguments )
{
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
info.setDSIArguments( arguments );
}
public void setServerPIExceptionInfo( Any exception )
{
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
info.setDSIException( exception );
}
public void setServerPIInfo( Any result )
{
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
info.setDSIResult( result );
}
public void initializeServerPIInfo( CorbaMessageMediator request,
ObjectAdapter oa, byte[] objectId, ObjectKeyTemplate oktemp )
{
if( !hasServerInterceptors ) return;
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalServerRequestInfoStack.get();
ServerRequestInfoImpl info = new ServerRequestInfoImpl( orb );
infoStack.push( info );
printPush();
// Notify request object that once response is constructed, make
// sure we execute ending points.
request.setExecutePIInResponseConstructor( true );
info.setInfo( request, oa, objectId, oktemp );
}
public void setServerPIInfo( java.lang.Object servant,
String targetMostDerivedInterface )
{
if( !hasServerInterceptors ) return;
ServerRequestInfoImpl info = peekServerRequestInfoImplStack();
info.setInfo( servant, targetMostDerivedInterface );
}
public void cleanupServerPIRequest() {
if( !hasServerInterceptors ) return;
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalServerRequestInfoStack.get();
infoStack.pop();
printPop();
}
/*
**********************************************************************
* The following methods are private utility methods.
************************************************************************/
/**
* Handles exceptions for the starting and intermediate points for
* server request interceptors. This is common code that has been
* factored out into this utility method.
* <p>
* This method will NOT work for ending points.
*/
private void serverPIHandleExceptions( ServerRequestInfoImpl info )
{
int endingPointCall = info.getEndingPointCall();
if(endingPointCall == ServerRequestInfoImpl.CALL_SEND_EXCEPTION) {
// If a system exception was thrown, throw it to caller:
throw (SystemException)info.getException();
}
else if( (endingPointCall == ServerRequestInfoImpl.CALL_SEND_OTHER) &&
(info.getForwardRequestException() != null) )
{
// If an interceptor throws a forward request, convert it
// into a ForwardException for easier handling:
IOR ior = info.getForwardRequestIOR();
throw new ForwardException( orb, ior );
}
}
/**
* Utility method to convert a PI reply status short to a ReplyMessage
* constant. This is a reverse lookup on the table defined in
* REPLY_MESSAGE_TO_PI_REPLY_STATUS. The reverse lookup need not be
* performed as quickly since it is only executed in exception
* conditions.
*/
private int convertPIReplyStatusToReplyMessage( short replyStatus ) {
int result = 0;
for( int i = 0; i < REPLY_MESSAGE_TO_PI_REPLY_STATUS.length; i++ ) {
if( REPLY_MESSAGE_TO_PI_REPLY_STATUS[i] == replyStatus ) {
result = i;
break;
}
}
return result;
}
/**
* Convenience method to get the ClientRequestInfoImpl object off the
* top of the ThreadLocal stack. Throws an INTERNAL exception if
* the Info stack is empty.
*/
private ClientRequestInfoImpl peekClientRequestInfoImplStack() {
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalClientRequestInfoStack.get();
ClientRequestInfoImpl info = null;
if( !infoStack.empty() ) {
info = (ClientRequestInfoImpl)infoStack.peek();
} else {
throw wrapper.clientInfoStackNull() ;
}
return info;
}
/**
* Convenience method to get the ServerRequestInfoImpl object off the
* top of the ThreadLocal stack. Returns null if there are none.
*/
private ServerRequestInfoImpl peekServerRequestInfoImplStack() {
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalServerRequestInfoStack.get();
ServerRequestInfoImpl info = null;
if( !infoStack.empty() ) {
info = (ServerRequestInfoImpl)infoStack.peek();
} else {
throw wrapper.serverInfoStackNull() ;
}
return info;
}
/**
* Convenience method to determine whether Client PI is enabled
* for requests on this thread.
*/
private boolean isClientPIEnabledForThisThread() {
RequestInfoStack infoStack =
(RequestInfoStack)threadLocalClientRequestInfoStack.get();
return (infoStack.disableCount == 0);
}
/**
* Call pre_init on all ORB initializers
*/
private void preInitORBInitializers( ORBInitInfoImpl info ) {
// Inform ORBInitInfo we are in pre_init stage
info.setStage( ORBInitInfoImpl.STAGE_PRE_INIT );
// Step through each initializer instantiation and call its
// pre_init. Ignore any exceptions.
for( int i = 0; i < orb.getORBData().getORBInitializers().length;
i++ ) {
ORBInitializer init = orb.getORBData().getORBInitializers()[i];
if( init != null ) {
try {
init.pre_init( info );
}
catch( Exception e ) {
// As per orbos/99-12-02, section 9.3.1.2, "If there are
// any exceptions, the ORB shall ignore them and proceed."
}
}
}
}
/**
* Call post_init on all ORB initializers
*/
private void postInitORBInitializers( ORBInitInfoImpl info ) {
// Inform ORBInitInfo we are in post_init stage
info.setStage( ORBInitInfoImpl.STAGE_POST_INIT );
// Step through each initializer instantiation and call its post_init.
// Ignore any exceptions.
for( int i = 0; i < orb.getORBData().getORBInitializers().length;
i++ ) {
ORBInitializer init = orb.getORBData().getORBInitializers()[i];
if( init != null ) {
try {
init.post_init( info );
}
catch( Exception e ) {
// As per orbos/99-12-02, section 9.3.1.2, "If there are
// any exceptions, the ORB shall ignore them and proceed."
}
}
}
}
/**
* Creates the ORBInitInfo object to be passed to ORB intializers'
* pre_init and post_init methods
*/
private ORBInitInfoImpl createORBInitInfo() {
ORBInitInfoImpl result = null;
// arguments comes from set_parameters. May be null.
// _REVISIT_ The spec does not specify which ID this is to be.
// We currently get this from the corba.ORB, which reads it from
// the ORB_ID_PROPERTY property.
String orbId = orb.getORBData().getORBId() ;
result = new ORBInitInfoImpl( orb, arguments, orbId, codecFactory );
return result;
}
/**
* Called by ORBInitInfo when an interceptor needs to be registered.
* The type is one of:
* <ul>
* <li>INTERCEPTOR_TYPE_CLIENT - ClientRequestInterceptor
* <li>INTERCEPTOR_TYPE_SERVER - ServerRequestInterceptor
* <li>INTERCEPTOR_TYPE_IOR - IORInterceptor
* </ul>
*
* @exception DuplicateName Thrown if an interceptor of the given
* name already exists for the given type.
*/
public void register_interceptor( Interceptor interceptor, int type )
throws DuplicateName
{
// We will assume interceptor is not null, since it is called
// internally.
if( (type >= InterceptorList.NUM_INTERCEPTOR_TYPES) || (type < 0) ) {
throw wrapper.typeOutOfRange( new Integer( type ) ) ;
}
String interceptorName = interceptor.name();
if( interceptorName == null ) {
throw wrapper.nameNull() ;
}
// Register with interceptor list:
interceptorList.register_interceptor( interceptor, type );
}
public Current getPICurrent( ) {
return current;
}
/**
* Called when an invalid null parameter was passed. Throws a
* BAD_PARAM with a minor code of 1
*/
private void nullParam()
throws BAD_PARAM
{
throw orbutilWrapper.nullParam() ;
}
/** This is the implementation of standard API defined in org.omg.CORBA.ORB
* class. This method finds the Policy Factory for the given Policy Type
* and instantiates the Policy object from the Factory. It will throw
* PolicyError exception, If the PolicyFactory for the given type is
* not registered.
* _REVISIT_, Once Policy Framework work is completed, Reorganize
* this method to com.sun.corba.se.spi.orb.ORB.
*/
public org.omg.CORBA.Policy create_policy(int type, org.omg.CORBA.Any val)
throws org.omg.CORBA.PolicyError
{
if( val == null ) {
nullParam( );
}
if( policyFactoryTable == null ) {
throw new org.omg.CORBA.PolicyError(
"There is no PolicyFactory Registered for type " + type,
BAD_POLICY.value );
}
PolicyFactory factory = (PolicyFactory)policyFactoryTable.get(
new Integer(type) );
if( factory == null ) {
throw new org.omg.CORBA.PolicyError(
" Could Not Find PolicyFactory for the Type " + type,
BAD_POLICY.value);
}
org.omg.CORBA.Policy policy = factory.create_policy( type, val );
return policy;
}
/** This method registers the Policy Factory in the policyFactoryTable,
* which is a HashMap. This method is made package private, because
* it is used internally by the Interceptors.
*/
public void registerPolicyFactory( int type, PolicyFactory factory ) {
if( policyFactoryTable == null ) {
policyFactoryTable = new HashMap();
}
Integer key = new Integer( type );
java.lang.Object val = policyFactoryTable.get( key );
if( val == null ) {
policyFactoryTable.put( key, factory );
}
else {
throw omgWrapper.policyFactoryRegFailed( new Integer( type ) ) ;
}
}
public synchronized int allocateServerRequestId ()
{
return serverRequestIdCounter++;
}
}
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