/* AnySeqHelper.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.CORBA; import gnu.CORBA.primitiveArrayTypeCode; import org.omg.CORBA.TypeCodePackage.BadKind; import org.omg.CORBA.portable.InputStream; import org.omg.CORBA.portable.OutputStream; /** * Provides static helper methods for working with * the array of the type {@link Any} (not with the "any array"). * * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) */ public abstract class AnySeqHelper { /** * Extract the array of {@link Any}'s from the * given {@link Any}. This implementation expects the * {@link Any} to hold the instance of {@link AnySeqHolder} * that is returned by {@link Any#extract_Streamable() }. * * @param a an Any to extract the array from. * * @return the extracted array. * * @throws ClassCastException if the Any contains something other than the * the {@link AnySeqHolder}. */ public static Any[] extract(Any a) { AnySeqHolder h = (AnySeqHolder) a.extract_Streamable(); return h.value; } /** * Returns the agreed Id, delegating functionality to * the {@link #type()}.id(). */ public static String id() { try { return type().id(); } catch (BadKind ex) { // Should never happen under correct work. throw new Error("Please report this bug.", ex); } } /** * Insert into the given {@link Any}[] into the * given {@link Any}. This implementation first creates * a {@link AnySeqHolder} and then calls * {@link Any#insert_Streamable(Streamable)}. * * @param into the target Any. * @param that the array to insert. */ public static void insert(Any into, Any[] that) { AnySeqHolder holder = new AnySeqHolder(that); into.insert_Streamable(holder); } /** * Reads the {@link Any}[] from the CORBA input stream. * This implementation first creates an instance of * {@link AnySeqHolder} and then delegates functionality * to its _read() method. * * @param input the CORBA (not java.io) stream to read from. * @return the value from the stream. */ public static Any[] read(InputStream input) { AnySeqHolder h = new AnySeqHolder(); h._read(input); return h.value; } /** * Creates and returns a new instance of the TypeCode, * corresponding the array of {@link Any}'s. * The length of the sequence is left with the initial * value 0. */ public static TypeCode type() { return new primitiveArrayTypeCode(TCKind.tk_any); } /** * Writes the array of {@link Any}'s into the given stream. * This implementation first creates an instance of * {@link AnySeqHolder} and then delegates functionality * to its _write() method. * * @param output the CORBA (not java.io) output stream to write. * @param value the value that must be written. */ public static void write(OutputStream output, Any[] value) { AnySeqHolder h = new AnySeqHolder(value); h._write(output); } }