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/*
 * Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package jakarta.faces.convert;

import java.math.BigDecimal;

import jakarta.faces.component.UIComponent;
import jakarta.faces.context.FacesContext;

/**
 * 

* {@link Converter} implementation for java.math.BigDecimal values. *

*/ public class BigDecimalConverter implements Converter { // ------------------------------------------------------ Manifest Constants /** *

* The standard converter id for this converter. *

*/ public static final String CONVERTER_ID = "jakarta.faces.BigDecimal"; /** *

* The message identifier of the {@link jakarta.faces.application.FacesMessage} to be created if the conversion to * BigDecimal fails. The message format string for this message may optionally include the following * placeholders: *

    *
  • {0} replaced by the unconverted value.
  • *
  • {1} replaced by an example value.
  • *
  • {2} replaced by a String whose value is the label of the input component that produced * this message.
  • *
*/ public static final String DECIMAL_ID = "jakarta.faces.converter.BigDecimalConverter.DECIMAL"; /** *

* The message identifier of the {@link jakarta.faces.application.FacesMessage} to be created if the conversion of the * BigDecimal value to String fails. The message format string for this message may optionally * include the following placeholders: *

    *
  • {0} relaced by the unconverted value.
  • *
  • {1} replaced by a String whose value is the label of the input component that produced * this message.
  • *
*/ public static final String STRING_ID = "jakarta.faces.converter.STRING"; // ------------------------------------------------------- Converter Methods /** * @throws ConverterException {@inheritDoc} * @throws NullPointerException {@inheritDoc} */ @Override public Object getAsObject(FacesContext context, UIComponent component, String value) { if (context == null || component == null) { throw new NullPointerException(); } // If the specified value is null or zero-length, return null if (value == null) { return null; } value = value.trim(); if (value.length() < 1) { return null; } try { return new BigDecimal(value); } catch (NumberFormatException nfe) { throw new ConverterException(MessageFactory.getMessage(context, DECIMAL_ID, value, "198.23", MessageFactory.getLabel(context, component)), nfe); } catch (Exception e) { throw new ConverterException(e); } } /** * @throws ConverterException {@inheritDoc} * @throws NullPointerException {@inheritDoc} */ @Override public String getAsString(FacesContext context, UIComponent component, Object value) { if (context == null || component == null) { throw new NullPointerException(); } // If the specified value is null, return a zero-length String if (value == null) { return ""; } // If the incoming value is still a string, play nice // and return the value unmodified if (value instanceof String) { return (String) value; } try { return value.toString(); } catch (Exception e) { throw new ConverterException(MessageFactory.getMessage(context, STRING_ID, value, MessageFactory.getLabel(context, component)), e); } } }




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