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Diffstat (limited to 'libjava/classpath/gnu/CORBA/DynAn/gnuDynValueBox.java')
| -rw-r--r-- | libjava/classpath/gnu/CORBA/DynAn/gnuDynValueBox.java | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/CORBA/DynAn/gnuDynValueBox.java b/libjava/classpath/gnu/CORBA/DynAn/gnuDynValueBox.java new file mode 100644 index 000000000..9c50534ed --- /dev/null +++ b/libjava/classpath/gnu/CORBA/DynAn/gnuDynValueBox.java @@ -0,0 +1,389 @@ +/* gnuDynValueBox.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.DynAn; + +import gnu.CORBA.Unexpected; +import gnu.CORBA.HolderLocator; + +import org.omg.CORBA.Any; +import org.omg.CORBA.ORB; +import org.omg.CORBA.TCKind; +import org.omg.CORBA.TypeCode; +import org.omg.CORBA.TypeCodePackage.BadKind; +import org.omg.CORBA.portable.Streamable; +import org.omg.DynamicAny.DynAny; +import org.omg.DynamicAny.DynAnyFactoryPackage.InconsistentTypeCode; +import org.omg.DynamicAny.DynAnyPackage.InvalidValue; +import org.omg.DynamicAny.DynAnyPackage.TypeMismatch; +import org.omg.DynamicAny.DynValueBox; +import org.omg.DynamicAny.DynValueBoxOperations; +import org.omg.DynamicAny.DynValueCommon; + +import java.io.Serializable; + +import java.lang.reflect.Field; + +/** + * Implementation of the DynValueBox. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class gnuDynValueBox + extends DivideableAny + implements DynValueBox, Serializable +{ + /** + * Use serialVersionUID for interoperability. + */ + private static final long serialVersionUID = 1; + + /** + * The final_type of contents of this value box. + */ + final TypeCode content; + + /** + * The string for some TypeMismatch exceptions. + */ + String CONTENT = "Box content final_type mismatch"; + + /** + * Create a new instance of gnuDynValueBox. + */ + public gnuDynValueBox(TypeCode oType, TypeCode aType, + gnuDynAnyFactory aFactory, ORB anOrb + ) + { + super(oType, aType, aFactory, anOrb); + try + { + content = final_type.content_type(); + array = new DynAny[] { factory.create_dyn_any_from_type_code(content) }; + set_to_null(); + } + catch (Exception e) + { + throw new Unexpected(e); + } + } + + /** @inheritDoc */ + public void assign(DynAny from) + throws TypeMismatch + { + checkType(official_type, from.type()); + if (from instanceof DynValueBoxOperations) + { + DynValueBoxOperations other = (DynValueBoxOperations) from; + if (other.is_null()) + set_to_null(); + else + { + DynAny inBox; + try + { + inBox = other.get_boxed_value_as_dyn_any(); + } + catch (InvalidValue e) + { + TypeMismatch t = new TypeMismatch("Invalid value"); + t.initCause(e); + throw t; + } + if (!content.equal(inBox.type())) + throw new TypeMismatch(CONTENT); + array = new DynAny[] { inBox.copy() }; + } + } + valueChanged(); + } + + /** @inheritDoc */ + public DynAny copy() + { + gnuDynValueBox other = + new gnuDynValueBox(official_type, final_type, factory, orb); + if (is_null()) + other.set_to_null(); + else + { + try + { + other.array = new DynAny[] { array [ 0 ].copy() }; + } + catch (Exception e) + { + throw new Unexpected(e); + } + } + return other; + } + + /** + * Returns null for null value, delegates to super. otherwise. + */ + public DynAny current_component() + throws TypeMismatch + { + if (is_null()) + return null; + else + return super.current_component(); + } + + /** + * Compare for equality, minding null values. + */ + public boolean equal(DynAny other) + { + if (other instanceof DynValueCommon) + { + DynValueCommon o = (DynValueCommon) other; + if (is_null()) + return o.is_null() && o.type().equal(official_type); + else + return !o.is_null() && super.equal(other); + } + else + return false; + } + + /** @inheritDoc */ + public void from_any(Any an_any) + throws TypeMismatch, InvalidValue + { + checkType(official_type, an_any.type()); + try + { + if (!an_any.type().content_type().equal(content)) + throw new InvalidValue(CONTENT); + } + catch (BadKind e) + { + TypeMismatch t = new TypeMismatch("Not a box"); + t.initCause(e); + throw t; + } + + Serializable s = an_any.extract_Value(); + if (s == null) + set_to_null(); + else + { + try + { + Streamable holder = HolderLocator.createHolder(content); + Field v = holder.getClass().getField("value"); + v.set(holder, s); + + Any cont = createAny(); + cont.insert_Streamable(holder); + + array = new DynAny[] { factory.create_dyn_any(cont) }; + } + catch (Exception ex) + { + throw new Unexpected(ex); + } + } + valueChanged(); + } + + /** @inheritDoc */ + public Any get_boxed_value() + throws InvalidValue + { + try + { + if (is_null()) + throw new InvalidValue(ISNULL); + else + return array [ 0 ].to_any(); + } + catch (Exception e) + { + InvalidValue t = new InvalidValue(); + t.initCause(e); + throw t; + } + } + + /** @inheritDoc */ + public DynAny get_boxed_value_as_dyn_any() + throws InvalidValue + { + if (is_null()) + throw new InvalidValue(ISNULL); + else + return array [ 0 ].copy(); + } + + /** {@inheritDoc} */ + public Serializable get_val() + throws TypeMismatch, InvalidValue + { + return to_any().extract_Value(); + } + + /** {@inheritDoc} */ + public void insert_val(Serializable a_x) + throws InvalidValue, TypeMismatch + { + Any a = to_any(); + a.insert_Value(a_x); + from_any(a); + valueChanged(); + } + + /** @inheritDoc */ + public boolean is_null() + { + return array.length == 0; + } + + /** @inheritDoc */ + public void set_boxed_value(Any boxIt) + throws TypeMismatch + { + if (!content.equal(boxIt.type())) + throw new TypeMismatch(CONTENT); + try + { + if (is_null()) + { + array = new DynAny[] { factory.create_dyn_any(boxIt) }; + } + else + { + array [ 0 ].from_any(boxIt); + } + } + catch (Exception e) + { + TypeMismatch t = new TypeMismatch(); + t.initCause(e); + throw t; + } + valueChanged(); + } + + /** @inheritDoc */ + public void set_boxed_value_as_dyn_any(DynAny boxIt) + throws TypeMismatch + { + if (!content.equal(boxIt.type())) + throw new TypeMismatch(CONTENT); + try + { + if (is_null()) + { + array = new DynAny[] { boxIt.copy() }; + } + else + { + array [ 0 ].assign(boxIt); + } + } + catch (Exception e) + { + TypeMismatch t = new TypeMismatch(); + t.initCause(e); + throw t; + } + valueChanged(); + } + + /** @inheritDoc */ + public void set_to_null() + { + array = new DynAny[ 0 ]; + valueChanged(); + } + + /** @inheritDoc */ + public void set_to_value() + { + try + { + if (array.length == 0) + { + array = + new DynAny[] { factory.create_dyn_any_from_type_code(content) }; + } + } + catch (InconsistentTypeCode e) + { + throw new Unexpected(e); + } + valueChanged(); + } + + /** @inheritDoc */ + public Any to_any() + { + Any a = createAny(); + + if (!is_null()) + { + try + { + Streamable holder; + if (array [ 0 ] instanceof gnuDynAny) + holder = ((gnuDynAny) array [ 0 ]).holder; + else + { + Any uan = array [ 0 ].to_any(); + holder = uan.extract_Streamable(); + } + + Field v = holder.getClass().getField("value"); + Serializable value = (Serializable) v.get(holder); + a.type(official_type); + a.insert_Value(value, content); + } + catch (Exception ex) + { + throw new Unexpected(ex); + } + } + else + a.type(orb.get_primitive_tc(TCKind.tk_null)); + return a; + } +} |