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    package org.apache.camel.dataformat.bindy;
018    
019    import java.math.BigDecimal;
020    import java.math.BigInteger;
021    import java.util.Date;
022    
023    import org.apache.camel.dataformat.bindy.format.BigDecimalFormat;
024    import org.apache.camel.dataformat.bindy.format.BigIntegerFormat;
025    import org.apache.camel.dataformat.bindy.format.ByteFormat;
026    import org.apache.camel.dataformat.bindy.format.BytePatternFormat;
027    import org.apache.camel.dataformat.bindy.format.CharacterFormat;
028    import org.apache.camel.dataformat.bindy.format.DatePatternFormat;
029    import org.apache.camel.dataformat.bindy.format.DoubleFormat;
030    import org.apache.camel.dataformat.bindy.format.DoublePatternFormat;
031    import org.apache.camel.dataformat.bindy.format.FloatFormat;
032    import org.apache.camel.dataformat.bindy.format.FloatPatternFormat;
033    import org.apache.camel.dataformat.bindy.format.IntegerFormat;
034    import org.apache.camel.dataformat.bindy.format.IntegerPatternFormat;
035    import org.apache.camel.dataformat.bindy.format.LongFormat;
036    import org.apache.camel.dataformat.bindy.format.LongPatternFormat;
037    import org.apache.camel.dataformat.bindy.format.ShortFormat;
038    import org.apache.camel.dataformat.bindy.format.ShortPatternFormat;
039    import org.apache.camel.dataformat.bindy.format.StringFormat;
040    
041    /**
042     * Factory to return {@link Format} classes for a given type.
043     */
044    public final class FormatFactory {
045    
046        private FormatFactory() {
047        }
048    
049        /**
050         * Retrieves the format to use for the given type
051         * 
052         * @param clazz represents the type of the format (String, Integer, Byte)
053         * @param pattern is the pattern to be used during the formating of the data
054         * @param precision optional scale for BigDecimal parsing.
055         * @return Format the formatter
056         * @throws IllegalArgumentException if not suitable formatter is found
057         */
058        public static Format<?> getFormat(Class<?> clazz, String pattern, int precision) throws Exception {
059            if (clazz == byte.class || clazz == Byte.class) {
060                return pattern != null ? new BytePatternFormat(pattern) : new ByteFormat();
061            } else if (clazz == short.class || clazz == Short.class) {
062                return pattern != null ? new ShortPatternFormat(pattern) : new ShortFormat();
063            } else if (clazz == int.class || clazz == Integer.class) {
064                return pattern != null ? new IntegerPatternFormat(pattern) : new IntegerFormat();
065            } else if (clazz == long.class || clazz == Long.class) {
066                return pattern != null ? new LongPatternFormat(pattern) : new LongFormat();
067            } else if (clazz == float.class || clazz == Float.class) {
068                return pattern != null ? new FloatPatternFormat(pattern) : new FloatFormat();
069            } else if (clazz == double.class || clazz == Double.class) {
070                return pattern != null ? new DoublePatternFormat(pattern) : new DoubleFormat();
071            } else if (clazz == BigDecimal.class) {
072                return new BigDecimalFormat(precision);
073            } else if (clazz == BigInteger.class) {
074                return new BigIntegerFormat();
075            } else if (clazz == String.class) {
076                return new StringFormat();
077            } else if (clazz == Date.class) {
078                return new DatePatternFormat(pattern);
079            } else if (clazz == char.class || clazz == Character.class) {
080                return new CharacterFormat();
081            } else {
082                throw new IllegalArgumentException("Can not find a suitable formatter for the type: " + clazz.getCanonicalName());
083            }
084        }
085    
086    }