Initial revision
From-SVN: r104578
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Tom Tromey
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/* gnuDynFixed.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.CORBA.DynAn;
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import org.omg.CORBA.Any;
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import org.omg.CORBA.BAD_OPERATION;
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import org.omg.CORBA.BAD_PARAM;
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import org.omg.CORBA.ORB;
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import org.omg.CORBA.TypeCode;
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import org.omg.DynamicAny.DynAny;
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import org.omg.DynamicAny.DynAnyPackage.InvalidValue;
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import org.omg.DynamicAny.DynAnyPackage.TypeMismatch;
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import org.omg.DynamicAny.DynFixed;
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import org.omg.DynamicAny.DynFixedOperations;
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import java.math.BigDecimal;
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/**
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* Implements DynAny, holding CORBA <code>fixed</code>. This class is derived
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* from gnuDynEnm to avoid repetetive inclusion of unused DynAny methods.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class gnuDynFixed extends anyUndivideable implements DynFixed
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{
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/**
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* Use serialVersionUID for interoperability.
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*/
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private static final long serialVersionUID = 1;
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/**
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* The default value, assigned in the new instance.
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*/
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static final BigDecimal ZERO = new BigDecimal("0.0");
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/**
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* The content of the dyn fixed, wrapped in this DynAny.
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*/
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BigDecimal value;
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/**
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* The number of digits after the decimal point.
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*/
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final int scale;
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/**
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* The number of digits.
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*/
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final int digits;
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/**
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* Create a new instance of the dyn fixed.
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*/
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public gnuDynFixed(TypeCode oType, TypeCode aType,
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gnuDynAnyFactory aFactory, ORB anOrb
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)
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{
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super(oType, aType, aFactory, anOrb);
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try
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{
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digits = final_type.fixed_digits();
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scale = final_type.fixed_scale();
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}
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catch (Exception e)
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{
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throw new BAD_PARAM("Not a fixed");
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}
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value = ZERO;
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}
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/**
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* Clone the current instance.
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*/
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public gnuDynFixed(gnuDynFixed from)
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{
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super(from.official_type, from.final_type, from.factory, from.orb);
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digits = from.digits;
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scale = from.scale;
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value = from.value;
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}
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/**
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* Get the value of the wrapped dyn fixed, as string.
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*/
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public String get_value()
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{
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return value.toString();
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}
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/**
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* Set the value.
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*/
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public boolean set_value(String fixed_value)
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throws TypeMismatch, InvalidValue
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{
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// Count the digits till decimal point.
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int digs = 0;
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char c;
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boolean leading0 = true;
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Digs:
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for (int i = 0; i < fixed_value.length(); i++)
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{
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c = fixed_value.charAt(i);
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if (Character.isDigit(c))
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{
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if (!(c == '0' && leading0))
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digs++;
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if (c != '0')
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leading0 = false;
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}
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else if (c == '.')
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break Digs;
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}
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if (digs > (digits - scale))
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throw new InvalidValue("Too many digits: " + digs + " for " + digits +
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"." + scale
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);
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try
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{
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value = new BigDecimal(fixed_value);
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}
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catch (NumberFormatException ex)
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{
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if (fixed_value.trim().length() == 0)
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throw new InvalidValue("Empty string passed");
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TypeMismatch inva =
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new TypeMismatch("Not a number: '" + fixed_value + "'");
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inva.initCause(ex);
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throw inva;
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}
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valueChanged();
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return value.scale() <= scale;
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}
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/**
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* Assign the value from another BigDecimal.
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*/
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public void assign(DynAny from) throws TypeMismatch
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{
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checkType(official_type, from.type());
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if (from instanceof gnuDynFixed)
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{
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gnuDynFixed other = (gnuDynFixed) from;
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value = other.value;
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}
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else if (from instanceof DynFixedOperations)
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{
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value = new BigDecimal(((DynFixedOperations) from).get_value());
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}
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else
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throw new TypeMismatch("Not a DynFixed");
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valueChanged();
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}
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/**
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* Create a copy.
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*/
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public DynAny copy()
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{
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return new gnuDynFixed(this);
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}
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/**
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* Compare for equality.
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*/
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public boolean equal(DynAny other)
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{
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if (other instanceof gnuDynFixed)
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{
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// Normally, this code would be executed.
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return value.equals(((gnuDynFixed) other).value);
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}
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if (other instanceof DynFixedOperations)
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{
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// This may be involved when mixing implementations.
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return ((DynFixedOperations) other).get_value().equals(get_value());
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}
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else
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return false;
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}
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/**
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* Set the value from Any (must hold <code>fixed</code> with the matching
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* typecode.).
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*/
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public void from_any(Any an_any) throws TypeMismatch, InvalidValue
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{
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try
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{
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checkType(official_type, an_any.type());
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value = an_any.extract_fixed();
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valueChanged();
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}
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catch (BAD_OPERATION e)
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{
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InvalidValue t = new InvalidValue();
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t.initCause(e);
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throw t;
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}
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}
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/**
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* Create and return Any, holding this DynFixed value.
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*/
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public Any to_any()
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{
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Any g = createAny();
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g.insert_fixed(value, official_type);
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return g;
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}
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}
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