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 import java.util.Locale;
023
024 import org.apache.camel.dataformat.bindy.format.BigDecimalFormat;
025 import org.apache.camel.dataformat.bindy.format.BigIntegerFormat;
026 import org.apache.camel.dataformat.bindy.format.ByteFormat;
027 import org.apache.camel.dataformat.bindy.format.BytePatternFormat;
028 import org.apache.camel.dataformat.bindy.format.CharacterFormat;
029 import org.apache.camel.dataformat.bindy.format.DatePatternFormat;
030 import org.apache.camel.dataformat.bindy.format.DoubleFormat;
031 import org.apache.camel.dataformat.bindy.format.DoublePatternFormat;
032 import org.apache.camel.dataformat.bindy.format.FloatFormat;
033 import org.apache.camel.dataformat.bindy.format.FloatPatternFormat;
034 import org.apache.camel.dataformat.bindy.format.IntegerFormat;
035 import org.apache.camel.dataformat.bindy.format.IntegerPatternFormat;
036 import org.apache.camel.dataformat.bindy.format.LongFormat;
037 import org.apache.camel.dataformat.bindy.format.LongPatternFormat;
038 import org.apache.camel.dataformat.bindy.format.ShortFormat;
039 import org.apache.camel.dataformat.bindy.format.ShortPatternFormat;
040 import org.apache.camel.dataformat.bindy.format.StringFormat;
041
042 /**
043 * Factory to return {@link Format} classes for a given type.
044 */
045 public final class FormatFactory {
046
047 private FormatFactory() {
048 }
049
050 /**
051 * Retrieves the format to use for the given type
052 *
053 * @param clazz represents the type of the format (String, Integer, Byte)
054 * @param pattern is the pattern to be used during the formating of the data
055 * @param locale optional locale for NumberFormat and DateFormat parsing.
056 * @param precision optional scale for BigDecimal parsing.
057 * @return Format the formatter
058 * @throws IllegalArgumentException if not suitable formatter is found
059 */
060 public static Format<?> getFormat(Class<?> clazz, String pattern, String locale, int precision) throws Exception {
061 if (clazz == byte.class || clazz == Byte.class) {
062 return pattern != null ? new BytePatternFormat(pattern, getLocale(locale)) : new ByteFormat();
063
064 } else if (clazz == short.class || clazz == Short.class) {
065 return pattern != null ? new ShortPatternFormat(pattern, getLocale(locale)) : new ShortFormat();
066
067 } else if (clazz == int.class || clazz == Integer.class) {
068 return pattern != null ? new IntegerPatternFormat(pattern, getLocale(locale)) : new IntegerFormat();
069
070 } else if (clazz == long.class || clazz == Long.class) {
071 return pattern != null ? new LongPatternFormat(pattern, getLocale(locale)) : new LongFormat();
072
073 } else if (clazz == float.class || clazz == Float.class) {
074 return pattern != null ? new FloatPatternFormat(pattern, getLocale(locale)) : new FloatFormat();
075
076 } else if (clazz == double.class || clazz == Double.class) {
077 return pattern != null ? new DoublePatternFormat(pattern, getLocale(locale)) : new DoubleFormat();
078
079 } else if (clazz == BigDecimal.class) {
080 return new BigDecimalFormat(precision);
081
082 } else if (clazz == BigInteger.class) {
083 return new BigIntegerFormat();
084
085 } else if (clazz == String.class) {
086 return new StringFormat();
087
088 } else if (clazz == Date.class) {
089 return new DatePatternFormat(pattern, getLocale(locale));
090
091 } else if (clazz == char.class || clazz == Character.class) {
092 return new CharacterFormat();
093
094 } else {
095 throw new IllegalArgumentException("Can not find a suitable formatter for the type: " + clazz.getCanonicalName());
096 }
097 }
098
099 private static Locale getLocale(String locale) {
100 if (locale != null && !(locale.length() == 0)) {
101 String[] result = locale.split("-");
102 if (result.length <= 2) {
103 return result.length == 1 ? new Locale(result[0]) : new Locale(result[0], result[1]);
104 }
105 }
106 return null;
107 }
108
109 }