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Diffstat (limited to 'libjava/classpath/gnu/CORBA/HolderLocator.java')
| -rw-r--r-- | libjava/classpath/gnu/CORBA/HolderLocator.java | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/CORBA/HolderLocator.java b/libjava/classpath/gnu/CORBA/HolderLocator.java new file mode 100644 index 00000000000..edd4d2cf7a4 --- /dev/null +++ b/libjava/classpath/gnu/CORBA/HolderLocator.java @@ -0,0 +1,184 @@ +/* HolderLocator.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; + +import org.omg.CORBA.AnyHolder; +import org.omg.CORBA.AnySeqHolder; +import org.omg.CORBA.BooleanHolder; +import org.omg.CORBA.BooleanSeqHolder; +import org.omg.CORBA.CharHolder; +import org.omg.CORBA.CharSeqHolder; +import org.omg.CORBA.DoubleHolder; +import org.omg.CORBA.DoubleSeqHolder; +import org.omg.CORBA.FixedHolder; +import org.omg.CORBA.FloatHolder; +import org.omg.CORBA.FloatSeqHolder; +import org.omg.CORBA.IntHolder; +import org.omg.CORBA.LongHolder; +import org.omg.CORBA.LongLongSeqHolder; +import org.omg.CORBA.LongSeqHolder; +import org.omg.CORBA.OctetSeqHolder; +import org.omg.CORBA.PrincipalHolder; +import org.omg.CORBA.ShortHolder; +import org.omg.CORBA.ShortSeqHolder; +import org.omg.CORBA.StringHolder; +import org.omg.CORBA.StringSeqHolder; +import org.omg.CORBA.TCKind; +import org.omg.CORBA.TypeCode; +import org.omg.CORBA.TypeCodeHolder; +import org.omg.CORBA.ULongLongSeqHolder; +import org.omg.CORBA.ULongSeqHolder; +import org.omg.CORBA.UShortSeqHolder; +import org.omg.CORBA.WCharSeqHolder; +import org.omg.CORBA.WStringSeqHolder; +import org.omg.CORBA.portable.Streamable; +import org.omg.CORBA.ObjectHolder; + +/** + * Creates the suitable holder for storing the value of the given final_type. + * + * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) + */ +public class HolderLocator +{ + /** + * The array, sufficiently large to use any {@link TCKind}._tk* constant as + * an index. + */ + private static final Class[] holders; + + private static final Class[] seqHolders; + + static + { + holders = new Class[32]; + holders[TCKind._tk_Principal] = PrincipalHolder.class; + holders[TCKind._tk_TypeCode] = TypeCodeHolder.class; + holders[TCKind._tk_any] = AnyHolder.class; + holders[TCKind._tk_boolean] = BooleanHolder.class; + holders[TCKind._tk_char] = CharHolder.class; + holders[TCKind._tk_double] = DoubleHolder.class; + holders[TCKind._tk_float] = FloatHolder.class; + holders[TCKind._tk_fixed] = FixedHolder.class; + holders[TCKind._tk_long] = IntHolder.class; + holders[TCKind._tk_longdouble] = DoubleHolder.class; + holders[TCKind._tk_longlong] = LongHolder.class; + holders[TCKind._tk_octet] = OctetHolder.class; + holders[TCKind._tk_short] = ShortHolder.class; + holders[TCKind._tk_string] = StringHolder.class; + holders[TCKind._tk_ulong] = IntHolder.class; + holders[TCKind._tk_ulonglong] = LongHolder.class; + holders[TCKind._tk_ushort] = ShortHolder.class; + holders[TCKind._tk_wchar] = WCharHolder.class; + holders[TCKind._tk_wstring] = WStringHolder.class; + holders[TCKind._tk_objref] = ObjectHolder.class; + + seqHolders = new Class[32]; + + seqHolders[TCKind._tk_ulonglong] = ULongLongSeqHolder.class; + seqHolders[TCKind._tk_short] = ShortSeqHolder.class; + seqHolders[TCKind._tk_octet] = OctetSeqHolder.class; + seqHolders[TCKind._tk_any] = AnySeqHolder.class; + seqHolders[TCKind._tk_long] = LongSeqHolder.class; + seqHolders[TCKind._tk_longlong] = LongLongSeqHolder.class; + seqHolders[TCKind._tk_float] = FloatSeqHolder.class; + seqHolders[TCKind._tk_double] = DoubleSeqHolder.class; + seqHolders[TCKind._tk_char] = CharSeqHolder.class; + seqHolders[TCKind._tk_boolean] = BooleanSeqHolder.class; + seqHolders[TCKind._tk_wchar] = WCharSeqHolder.class; + seqHolders[TCKind._tk_ushort] = UShortSeqHolder.class; + seqHolders[TCKind._tk_ulong] = ULongSeqHolder.class; + seqHolders[TCKind._tk_string] = StringSeqHolder.class; + seqHolders[TCKind._tk_wstring] = WStringSeqHolder.class; + } + + /** + * Create a holder for storing the value of the given built-in final_type. This + * function returns the defined holders for the built-in primitive types and + * they sequences. + * + * @param t the typecode + * + * @return an instance of the corresponding built-in holder of null if no such + * is defined for this final_type. The holder is created with a parameterless + * constructor. + */ + public static Streamable createHolder(TypeCode t) + { + try + { + int kind = t.kind().value(); + int componentKind; + + Streamable holder = null; + + if (kind < holders.length && holders[kind] != null) + holder = (Streamable) holders[kind].newInstance(); + + if (holder != null) + return holder; + + switch (kind) + { + case TCKind._tk_sequence: + componentKind = t.content_type().kind().value(); + if (componentKind < seqHolders.length) + return (Streamable) seqHolders[componentKind].newInstance(); + break; + + default: + break; + } + } + catch (Exception ex) + { + throw new Unexpected(ex); + } + + try + { + Object ox = ObjectCreator.createObject(t.id(), "Holder"); + return (Streamable) ox; + } + catch (Exception ex) + { + return null; + } + } +} |