| /* |
| * Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved. |
| * 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.corba.se.spi.servicecontext; |
| |
| import org.omg.CORBA.BAD_PARAM ; |
| import org.omg.CORBA_2_3.portable.InputStream ; |
| import com.sun.corba.se.spi.servicecontext.ServiceContext ; |
| import java.lang.reflect.InvocationTargetException ; |
| import java.lang.reflect.Modifier ; |
| import java.lang.reflect.Field ; |
| import java.lang.reflect.Constructor ; |
| import com.sun.corba.se.spi.ior.iiop.GIOPVersion; |
| import com.sun.corba.se.spi.orb.ORB ; |
| import com.sun.corba.se.impl.orbutil.ORBUtility ; |
| |
| /** Internal class used to hold data about a service context class. |
| */ |
| public class ServiceContextData { |
| private void dprint( String msg ) |
| { |
| ORBUtility.dprint( this, msg ) ; |
| } |
| |
| private void throwBadParam( String msg, Throwable exc ) |
| { |
| BAD_PARAM error = new BAD_PARAM( msg ) ; |
| if (exc != null) |
| error.initCause( exc ) ; |
| throw error ; |
| } |
| |
| public ServiceContextData( Class cls ) |
| { |
| if (ORB.ORBInitDebug) |
| dprint( "ServiceContextData constructor called for class " + cls ) ; |
| |
| scClass = cls ; |
| |
| try { |
| if (ORB.ORBInitDebug) |
| dprint( "Finding constructor for " + cls ) ; |
| |
| // Find the appropriate constructor in cls |
| Class[] args = new Class[2] ; |
| args[0] = InputStream.class ; |
| args[1] = GIOPVersion.class; |
| try { |
| scConstructor = cls.getConstructor( args ) ; |
| } catch (NoSuchMethodException nsme) { |
| throwBadParam( "Class does not have an InputStream constructor", nsme ) ; |
| } |
| |
| if (ORB.ORBInitDebug) |
| dprint( "Finding SERVICE_CONTEXT_ID field in " + cls ) ; |
| |
| // get the ID from the public static final int SERVICE_CONTEXT_ID |
| Field fld = null ; |
| try { |
| fld = cls.getField( "SERVICE_CONTEXT_ID" ) ; |
| } catch (NoSuchFieldException nsfe) { |
| throwBadParam( "Class does not have a SERVICE_CONTEXT_ID member", nsfe ) ; |
| } catch (SecurityException se) { |
| throwBadParam( "Could not access SERVICE_CONTEXT_ID member", se ) ; |
| } |
| |
| if (ORB.ORBInitDebug) |
| dprint( "Checking modifiers of SERVICE_CONTEXT_ID field in " + cls ) ; |
| |
| int mod = fld.getModifiers() ; |
| if (!Modifier.isPublic(mod) || !Modifier.isStatic(mod) || |
| !Modifier.isFinal(mod) ) |
| throwBadParam( "SERVICE_CONTEXT_ID field is not public static final", null ) ; |
| |
| if (ORB.ORBInitDebug) |
| dprint( "Getting value of SERVICE_CONTEXT_ID in " + cls ) ; |
| |
| try { |
| scId = fld.getInt( null ) ; |
| } catch (IllegalArgumentException iae) { |
| throwBadParam( "SERVICE_CONTEXT_ID not convertible to int", iae ) ; |
| } catch (IllegalAccessException iae2) { |
| throwBadParam( "Could not access value of SERVICE_CONTEXT_ID", iae2 ) ; |
| } |
| } catch (BAD_PARAM nssc) { |
| if (ORB.ORBInitDebug) |
| dprint( "Exception in ServiceContextData constructor: " + nssc ) ; |
| throw nssc ; |
| } catch (Throwable thr) { |
| if (ORB.ORBInitDebug) |
| dprint( "Unexpected Exception in ServiceContextData constructor: " + |
| thr ) ; |
| } |
| |
| if (ORB.ORBInitDebug) |
| dprint( "ServiceContextData constructor completed" ) ; |
| } |
| |
| /** Factory method used to create a ServiceContext object by |
| * unmarshalling it from the InputStream. |
| */ |
| public ServiceContext makeServiceContext(InputStream is, GIOPVersion gv) |
| { |
| Object[] args = new Object[2]; |
| args[0] = is ; |
| args[1] = gv; |
| ServiceContext sc = null ; |
| |
| try { |
| sc = (ServiceContext)(scConstructor.newInstance( args )) ; |
| } catch (IllegalArgumentException iae) { |
| throwBadParam( "InputStream constructor argument error", iae ) ; |
| } catch (IllegalAccessException iae2) { |
| throwBadParam( "InputStream constructor argument error", iae2 ) ; |
| } catch (InstantiationException ie) { |
| throwBadParam( "InputStream constructor called for abstract class", ie ) ; |
| } catch (InvocationTargetException ite) { |
| throwBadParam( "InputStream constructor threw exception " + |
| ite.getTargetException(), ite ) ; |
| } |
| |
| return sc ; |
| } |
| |
| int getId() |
| { |
| return scId ; |
| } |
| |
| public String toString() |
| { |
| return "ServiceContextData[ scClass=" + scClass + " scConstructor=" + |
| scConstructor + " scId=" + scId + " ]" ; |
| } |
| |
| private Class scClass ; |
| private Constructor scConstructor ; |
| private int scId ; |
| } |