    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017
    018package org.apache.commons.beanutils2.locale.converters;
    019
    020import java.text.ParseException;
    021import java.util.Locale;
    022
    023import org.apache.commons.beanutils2.ConversionException;
    024
    025/**
    026 * Standard {@link org.apache.commons.beanutils2.locale.LocaleConverter} implementation that converts an incoming locale-sensitive String into a {@link Byte}
    027 * object, optionally using a default value or throwing a {@link org.apache.commons.beanutils2.ConversionException} if a conversion error occurs.
    028 */
    029public class ByteLocaleConverter extends DecimalLocaleConverter<Byte> {
    030
    031    /**
    032     * Builds instances of {@link ByteLocaleConverter}.
    033     */
    034    public static class Builder extends DecimalLocaleConverter.Builder<Builder, Byte> {
    035
    036        @Override
    037        public ByteLocaleConverter get() {
    038            return new ByteLocaleConverter(defaultValue, locale, pattern, useDefault || defaultValue != null, localizedPattern);
    039        }
    040
    041    }
    042
    043    /**
    044     * Constructs a new builder.
    045     *
    046     * @return a new builder.
    047     */
    048    public static Builder builder() {
    049        return new Builder();
    050    }
    051
    052    private ByteLocaleConverter(final Byte defaultValue, final Locale locale, final String pattern, final boolean useDefault, final boolean locPattern) {
    053        super(defaultValue, locale, pattern, useDefault, locPattern);
    054    }
    055
    056    /**
    057     * Parses the specified locale-sensitive input object into an output object of the specified type. This method will return values of type Byte.
    058     *
    059     * @param value   The input object to be converted
    060     * @param pattern The pattern is used for the conversion
    061     * @return The converted value
    062     * @throws ConversionException if conversion cannot be performed successfully
    063     * @throws ParseException      if an error occurs parsing a String to a Number
    064     */
    065    @Override
    066    protected Byte parse(final Object value, final String pattern) throws ParseException {
    067        final Number parsed = super.parse(value, pattern);
    068        if (parsed.longValue() != parsed.byteValue()) {
    069            throw new ConversionException("Supplied number is not of type Byte: " + parsed.longValue());
    070        }
    071        // now returns property Byte
    072        return Byte.valueOf(parsed.byteValue());
    073    }
    074}