diff options
Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/CORBA/DynAn/gnuDynUnion.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/CORBA/DynAn/gnuDynUnion.java | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/CORBA/DynAn/gnuDynUnion.java b/gcc-4.4.3/libjava/classpath/gnu/CORBA/DynAn/gnuDynUnion.java new file mode 100644 index 000000000..3cd8efe18 --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/CORBA/DynAn/gnuDynUnion.java @@ -0,0 +1,437 @@ +/* gnuDynUnion.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 org.omg.CORBA.Any; +import org.omg.CORBA.MARSHAL; +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.InputStream; +import org.omg.CORBA.portable.OutputStream; +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.DynUnion; + +import java.io.Serializable; + +/** + * Implementation of DynUnion. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class gnuDynUnion + extends DivideableAny + implements DynUnion, Serializable, ValueChangeListener +{ + /** + * Use serialVersionUID for interoperability. + */ + private static final long serialVersionUID = 1; + + /** + * The discrimintor of this union. + */ + DynAny discriminator; + + /** + * The message string that occurs several times throwing exception. + */ + static String NOAM = "No active member"; + + /** + * Create a new instance with the given typecode. + * + * @param aType the final_type, must be final_type of the union. + */ + public gnuDynUnion(TypeCode oType, TypeCode aType, gnuDynAnyFactory aFactory, + ORB anOrb + ) + throws InconsistentTypeCode + { + super(oType, aType, aFactory, anOrb); + try + { + discriminator = + factory.create_dyn_any_from_type_code(final_type.discriminator_type()); + + ((AbstractAny) discriminator).listener = this; + + if (final_type.default_index() >= 0) + set_to_default_member(); + else + set_to_no_active_member(); + } + catch (Exception ex) + { + InconsistentTypeCode inc = new InconsistentTypeCode("discriminator"); + inc.initCause(ex); + throw inc; + } + } + + /* + * (non-Javadoc) + * + * @see gnu.CORBA.DynAn.DivideableAny#to_any() + */ + public Any to_any() + { + Any a = createAny(); + OutputStream ou = a.create_output_stream(); + discriminator.to_any().write_value(ou); + if (array.length == 2) + array [ 1 ].to_any().write_value(ou); + a.read_value(ou.create_input_stream(), final_type); + return a; + } + + /** + * Assign from another identical structure. + */ + public void assign(DynAny from) + throws TypeMismatch + { + checkType(official_type, from.type()); + if (!(from instanceof DynUnion)) + throw new TypeMismatch("DynUnion required"); + else + { + try + { + DynUnion u = (DynUnion) from; + discriminator.assign(u.get_discriminator()); + if (u.has_no_active_member()) + { + if (array.length != 1) + array = new DynAny[] { discriminator }; + } + else + { + if (array.length != 2) + array = new DynAny[] { discriminator, u.member().copy() }; + else + array [ 1 ] = u.member().copy(); + } + } + catch (InvalidValue e) + { + throw new Unexpected(e); + } + } + valueChanged(); + } + + /** @inheritDoc */ + public DynAny copy() + { + try + { + gnuDynUnion other = + new gnuDynUnion(official_type, final_type, factory, orb); + other.discriminator = discriminator.copy(); + ((AbstractAny) other.discriminator).listener = other; + if (array.length == 1) + { + other.array = new DynAny[] { other.discriminator }; + } + else + { + other.array = + new DynAny[] { other.discriminator, array [ 1 ].copy() }; + } + return other; + } + catch (InconsistentTypeCode ex) + { + throw new Unexpected(ex); + } + } + + /** + * Done via reading from stream. + */ + public void from_any(Any an_any) + throws TypeMismatch, InvalidValue + { + checkType(official_type, an_any.type()); + + Any adis = createAny(); + try + { + InputStream stream = an_any.create_input_stream(); + adis.read_value(stream, final_type.discriminator_type()); + + DynAny nd = factory.create_dyn_any(adis); + + set_discriminator(nd); + if (array.length == 2) + { + // Reusing the same Any <code>adis</code>. + adis.read_value(stream, array [ 1 ].type()); + array [ 1 ].from_any(adis); + } + } + catch (InconsistentTypeCode it) + { + TypeMismatch t = new TypeMismatch(); + t.initCause(it); + throw t; + } + catch (MARSHAL m) + { + InvalidValue t = new InvalidValue(); + t.initCause(m); + throw t; + } + catch (BadKind b) + { + throw new Unexpected(b); + } + valueChanged(); + } + + /** @inheritDoc */ + public TCKind discriminator_kind() + { + return discriminator.type().kind(); + } + + /** @inheritDoc */ + public DynAny get_discriminator() + { + return discriminator; + } + + /** @inheritDoc */ + public boolean has_no_active_member() + { + return array.length == 1; + } + + /** @inheritDoc */ + public TCKind member_kind() + throws InvalidValue + { + return member().type().kind(); + } + + /** + * Get the name of the current variant of the union. + */ + public String member_name() + throws InvalidValue + { + if (array.length == 1) + throw new InvalidValue(NOAM); + try + { + Any da = discriminator.to_any(); + + + // Get the discriminator variant. + for (int i = 0; i < final_type.member_count(); i++) + { + if (final_type.member_label(i).equal(da)) + return final_type.member_name(i); + } + throw new InvalidValue(NOAM); + } + catch (Exception e) + { + InvalidValue t = new InvalidValue("Err"); + t.initCause(e); + throw t; + } + } + + /** @inheritDoc */ + public DynAny member() + throws InvalidValue + { + if (array.length < 2) + throw new InvalidValue(NOAM); + else + return array [ 1 ]; + } + + /** + * Set the union discriminator. + */ + public void set_discriminator(DynAny aDiscriminator) + throws TypeMismatch + { + try + { + if (!aDiscriminator.type().equal(final_type.discriminator_type())) + throw new TypeMismatch("Wrong discriminator final_type for " + + final_type.name() + ); + + // Seting the same discriminator value again should not change + // the fields of the current member. + if (!discriminator.equal(aDiscriminator)) + { + discriminator.assign(aDiscriminator); + updateMember(); + } + else + { + pos = array.length == 2 ? 1 : 0; + } + } + catch (Exception e) + { + TypeMismatch t = new TypeMismatch(); + t.initCause(e); + throw t; + } + } + + /** + * Set to default member, if one exists. + */ + public void set_to_default_member() + throws TypeMismatch + { + try + { + int di = final_type.default_index(); + if (di < 0) + throw new TypeMismatch("Union " + final_type.name() + + "has no default index" + ); + + Any da = final_type.member_label(di); + discriminator.from_any(da); + updateMember(); + } + catch (TypeMismatch m) + { + // This one OK. + throw m; + } + catch (Exception e) + { + TypeMismatch t = new TypeMismatch(); + t.initCause(e); + throw t; + } + } + + /** @inheritDoc */ + public void set_to_no_active_member() + throws TypeMismatch + { + try + { + if (final_type.default_index() >= 0) + { + throw new TypeMismatch("Explicit default case defined."); + } + } + catch (BadKind ex) + { + // The default index is not set. + } + array = new DynAny[] { discriminator }; + valueChanged(); + } + + /** + * Update member, in accordance with discriminator value. + */ + public void updateMember() + throws TypeMismatch + { + try + { + Any da = discriminator.to_any(); + + + // Get the discriminator variant. + for (int i = 0; i < final_type.member_count(); i++) + { + if (final_type.member_label(i).equal(da)) + { + array = + new DynAny[] + { + discriminator, + factory.create_dyn_any_from_type_code(final_type.member_type(i)) + }; + pos = 1; + valueChanged(); + return; + } + } + } + catch (Exception e) + { + TypeMismatch t = new TypeMismatch(); + t.initCause(e); + throw t; + } + + // Discrimintator does not point to valid member. + array = new DynAny[] { discriminator }; + pos = 0; + valueChanged(); + } + + /** + * Called when the discriminator is changed. + */ + public void changed() + { + try + { + updateMember(); + } + catch (TypeMismatch ex) + { + throw new Unexpected(ex); + } + } +}
\ No newline at end of file |