| /* 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); |
| } |
| } |
| } |