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author | Andrew John Hughes <gnu_andrew@member.fsf.org> | 2005-08-02 20:12:05 +0000 |
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committer | Andrew John Hughes <gnu_andrew@member.fsf.org> | 2005-08-02 20:12:05 +0000 |
commit | 33bace404a240c1335ab1f6e95bd6616e22c0ecd (patch) | |
tree | 004ab1587e14d3df272c6944ce325d3584b95aa5 /gnu/CORBA/EmptyExceptionHolder.java | |
parent | d30622846e00f908cb5d4beac7de4e5e78dcd630 (diff) | |
download | classpath-33bace404a240c1335ab1f6e95bd6616e22c0ecd.tar.gz |
2005-08-02 Andrew John Hughes <gnu_andrew@member.fsf.org>
* Merge of HEAD --> generics-branch for 2005/06/05 - 2005/07/31.
See patch on classpath-patches@gnu.org for a full ChangeLog.
Diffstat (limited to 'gnu/CORBA/EmptyExceptionHolder.java')
-rw-r--r-- | gnu/CORBA/EmptyExceptionHolder.java | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/gnu/CORBA/EmptyExceptionHolder.java b/gnu/CORBA/EmptyExceptionHolder.java new file mode 100644 index 000000000..890ca5fe5 --- /dev/null +++ b/gnu/CORBA/EmptyExceptionHolder.java @@ -0,0 +1,132 @@ +/* EmptyStructHolder.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.BAD_OPERATION; +import org.omg.CORBA.NO_IMPLEMENT; +import org.omg.CORBA.TypeCode; +import org.omg.CORBA.UNKNOWN; +import org.omg.CORBA.UnknownUserException; +import org.omg.CORBA.portable.InputStream; +import org.omg.CORBA.portable.OutputStream; +import org.omg.CORBA.portable.Streamable; + +/** + * This holder can store any CORBA exception that has no user defined fields. + * Only the repository ID is written when the method {@link #_write} is called. + * The _read method is not supported for this holder. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class EmptyExceptionHolder + implements Streamable +{ + /** + * The wrapped exception. + */ + public Throwable value; + + /** + * The typecode of the wrapped exception. + */ + public TypeCode typecode; + + /** + * Create the exception holder, initialised to the given values. + * + * @param an_exception the wrapped exception. + * @param an_id the exception repository id. + */ + public EmptyExceptionHolder(Throwable an_exception, TypeCode a_typecode) + { + value = an_exception; + typecode = a_typecode; + } + + /** + * Reads the exception from the input stream. + * + * The value field obtains the value of either the read exception or + * the UNKNOWN if the repository ID does not match + * the exception from the reachable code. + */ + public void _read(InputStream input) + { + String id = input.read_string(); + Object ex = ObjectCreator.Idl2Object(id); + if (ex == null) + value = new UNKNOWN(id); + else + value = (Throwable) ex; + } + + /** + * Return the typecode of the stored exception. + * + * @return the value, passed as a_typecode in constructor. + */ + public TypeCode _type() + { + return typecode; + } + + /** + * Write the exception into the give output stream. Writes the + * repository id that is taken from the typecode. This method also + * works when no helper class is available. + * + * @param output a stream to write into. + * + * @throws BAD_OPERATION if the value for the holder is not set or + * the typecode cannot provide repository id. + */ + public void _write(OutputStream output) + { + try + { + output.write_string(typecode.id()); + } + catch (Exception ex) + { + BAD_OPERATION bad = new BAD_OPERATION(); + bad.initCause(ex); + throw bad; + } + } +}
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