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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/CORBA/GeneralHolder.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/CORBA/GeneralHolder.java | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/CORBA/GeneralHolder.java b/gcc-4.4.3/libjava/classpath/gnu/CORBA/GeneralHolder.java new file mode 100644 index 000000000..ffba69d79 --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/CORBA/GeneralHolder.java @@ -0,0 +1,178 @@ +/* universalStreamable.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 gnu.CORBA.CDR.BufferredCdrInput; +import gnu.CORBA.CDR.BufferedCdrOutput; + +import org.omg.CORBA.BAD_OPERATION; +import org.omg.CORBA.MARSHAL; +import org.omg.CORBA.TypeCode; +import org.omg.CORBA.portable.InputStream; +import org.omg.CORBA.portable.OutputStream; +import org.omg.CORBA.portable.Streamable; + +import java.io.IOException; + +/** + * This class holds the abstract binary data array of the Streamable + * being stored. It is used to insert and extract into {@link Any} objects + * that have no holder, but have the helper classes. + * Encoding/decoding then must be performed by the helper. This class is + * defined as package private because it is not idiot proof and + * must be used with care. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class GeneralHolder + implements Streamable +{ + /** + * The binary data, stored inside this holder. + */ + private BufferedCdrOutput value = new BufferedCdrOutput(); + + /** + * Create the universal holder that uses the given buffer to store the data. + */ + public GeneralHolder(BufferedCdrOutput buffer) + { + value = buffer; + } + + /** + * Reads into the internal buffer till the end of stream is + * reached. No alignment operations are performed. This operation + * normally reads from the stream, where the single value, + * stored using {@link #_write}, is written. + * + * @throws MARSHALL, if the IOException is thrown during the + * stream operation. + */ + public void _read(InputStream input) + { + try + { + if (input instanceof BufferredCdrInput) + { + BufferredCdrInput b = (BufferredCdrInput) input; + value.write(b.buffer.getBuffer()); + } + else + { + int c; + + do + { + c = input.read(); + if (c >= 0) + value.write(c); + } + while (c >= 0); + } + } + catch (IOException ex) + { + MARSHAL t = new MARSHAL(); + t.minor = Minor.Any; + t.initCause(ex); + throw t; + } + } + + /** + * The type is not known and cannot be returned. + * + * @throws BAD_OPERATION, always. + */ + public TypeCode _type() + { + BAD_OPERATION bad = new BAD_OPERATION(); + bad.minor = Minor.Inappropriate; + throw bad; + } + + /** + * Writes the binary data being stored into the given output + * stream. This operation supposes that the current stream + * position is 0 or satisfies the required alignments anyway. + * + * @throws MARSHAL if the IOExeption is thrown when writing the + * byte array. + */ + public void _write(OutputStream output) + { + try + { + value.buffer.writeTo(output); + } + catch (IOException ex) + { + MARSHAL t = new MARSHAL(); + t.minor = Minor.Any; + t.initCause(ex); + throw t; + } + } + + /** + * Get the input stream that reads the fields of the stored value. + */ + InputStream getInputStream() + { + return value.create_input_stream(); + } + + /** + * Clone. + */ + public GeneralHolder Clone() + { + try + { + BufferedCdrOutput nb = new BufferedCdrOutput(value.buffer.size()); + value.buffer.writeTo(nb); + return new GeneralHolder(nb); + } + catch (IOException ex) + { + throw new Unexpected(ex); + } + } +}
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