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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/org/omg/DynamicAny/DynValueHelper.java
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+/* DynValueHelper.java --
+ Copyright (C) 2005, 2006 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 org.omg.DynamicAny;
+
+import gnu.CORBA.OrbRestricted;
+
+import org.omg.CORBA.BAD_OPERATION;
+import org.omg.CORBA.BAD_PARAM;
+import org.omg.CORBA.TypeCode;
+import org.omg.CORBA.Any;
+import org.omg.CORBA.portable.InputStream;
+import org.omg.CORBA.MARSHAL;
+import org.omg.CORBA.portable.OutputStream;
+
+/**
+ * The helper operations for {@link DynValue}. Following the 1.5 JDK
+ * specifications, DynValue is always a local object, so the two methods of this
+ * helper ({@link #read} and {@link #write} are not in use, always throwing
+ * {@link MARSHAL}.
+ *
+ * @specnote always throwing MARSHAL in read and write ensures compatibility
+ * with other popular implementations like Sun's.
+ *
+ * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
+ */
+public abstract class DynValueHelper
+{
+ /**
+ * Cast the passed object into the DynValue. As DynValue is a local object,
+ * the method just uses java type cast.
+ *
+ * @param obj the object to narrow.
+ * @return narrowed instance.
+ * @throws BAD_PARAM if the passed object is not a DynValue.
+ */
+ public static DynValue narrow(org.omg.CORBA.Object obj)
+ {
+ try
+ {
+ return (DynValue) obj;
+ }
+ catch (ClassCastException cex)
+ {
+ throw new BAD_PARAM(obj.getClass().getName() + " is not a DynValue");
+ }
+ }
+
+ /**
+ * Narrow the given object to the DynValue. For the objects that are
+ * always local, this operation does not differ from the ordinary
+ * {@link #narrow} (ClassCastException will be thrown if narrowing something
+ * different). See OMG issue 4158.
+ *
+ * @param obj the object to cast.
+ *
+ * @return the casted DynValue.
+ *
+ * @since 1.5
+ */
+ public static DynValue unchecked_narrow(org.omg.CORBA.Object obj)
+ {
+ return narrow(obj);
+ }
+
+ /**
+ * Get the type code of the {@link DynValue}.
+ */
+ public static TypeCode type()
+ {
+ return OrbRestricted.Singleton.create_interface_tc(id(), "DynValue");
+ }
+
+ /**
+ * Insert the DynValue into the given Any.
+ *
+ * @param any the Any to insert into.
+ *
+ * @param that the DynValue to insert.
+ */
+ public static void insert(Any any, DynValue that)
+ {
+ any.insert_Object(that);
+ }
+
+ /**
+ * Extract the DynValue from given Any.
+ *
+ * @throws BAD_OPERATION if the passed Any does not contain DynValue.
+ */
+ public static DynValue extract(Any any)
+ {
+ return narrow(any.extract_Object());
+ }
+
+ /**
+ * Get the DynValue repository id.
+ *
+ * @return "IDL:omg.org/DynamicAny/DynValue:1.0", always.
+ */
+ public static String id()
+ {
+ return "IDL:omg.org/DynamicAny/DynValue:1.0";
+ }
+
+ /**
+ * This should read DynValue from the CDR input stream, but (following the JDK
+ * 1.5 API) it does not.
+ *
+ * @param input a org.omg.CORBA.portable stream to read from.
+ *
+ * @specenote Sun throws the same exception.
+ *
+ * @throws MARSHAL always.
+ */
+ public static DynValue read(InputStream input)
+ {
+ throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id()));
+ }
+
+ /**
+ * This should read DynValue from the CDR input stream, but (following the JDK
+ * 1.5 API) it does not.
+ *
+ * @param output a org.omg.CORBA.portable stream to write into.
+ *
+ * @specenote Sun throws the same exception.
+ *
+ * @throws MARSHAL always.
+ */
+ public static void write(OutputStream output, DynValue value)
+ {
+ throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id()));
+ }
+}