/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.dataformat.bindy;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Date;
import java.util.Locale;
import org.apache.camel.dataformat.bindy.annotation.DataField;
import org.apache.camel.dataformat.bindy.annotation.KeyValuePairField;
import org.apache.camel.dataformat.bindy.format.BigDecimalFormat;
import org.apache.camel.dataformat.bindy.format.BigIntegerFormat;
import org.apache.camel.dataformat.bindy.format.ByteFormat;
import org.apache.camel.dataformat.bindy.format.BytePatternFormat;
import org.apache.camel.dataformat.bindy.format.CharacterFormat;
import org.apache.camel.dataformat.bindy.format.DatePatternFormat;
import org.apache.camel.dataformat.bindy.format.DoubleFormat;
import org.apache.camel.dataformat.bindy.format.DoublePatternFormat;
import org.apache.camel.dataformat.bindy.format.EnumFormat;
import org.apache.camel.dataformat.bindy.format.FloatFormat;
import org.apache.camel.dataformat.bindy.format.FloatPatternFormat;
import org.apache.camel.dataformat.bindy.format.IntegerFormat;
import org.apache.camel.dataformat.bindy.format.IntegerPatternFormat;
import org.apache.camel.dataformat.bindy.format.LongFormat;
import org.apache.camel.dataformat.bindy.format.LongPatternFormat;
import org.apache.camel.dataformat.bindy.format.ShortFormat;
import org.apache.camel.dataformat.bindy.format.ShortPatternFormat;
import org.apache.camel.dataformat.bindy.format.StringFormat;
import org.apache.camel.util.ObjectHelper;
/**
* Factory to return {@link Format} classes for a given type.
*/
public final class FormatFactory {
private FormatFactory() {
}
/**
* Retrieves the format to use for the given type
*
* @param clazz represents the type of the format (String, Integer, Byte)
* @param pattern is the pattern to be used during the formatting of the data
* @param locale optional locale for NumberFormat and DateFormat parsing.
* @param precision optional scale for BigDecimal parsing.
* @param impliedDecimalSeparator optional flag for floatign-point values
* @return Format the formatter
* @throws IllegalArgumentException if not suitable formatter is found
*/
@SuppressWarnings("unchecked")
private static Format<?> doGetFormat(Class<?> clazz, String pattern, String locale,
String timezone, int precision, boolean impliedDecimalSeparator)
throws Exception {
if (clazz == byte.class || clazz == Byte.class) {
return ObjectHelper.isNotEmpty(pattern)
? new BytePatternFormat(pattern, getLocale(locale))
: new ByteFormat();
} else if (clazz == short.class || clazz == Short.class) {
return ObjectHelper.isNotEmpty(pattern)
? new ShortPatternFormat(pattern, getLocale(locale))
: new ShortFormat();
} else if (clazz == int.class || clazz == Integer.class) {
return ObjectHelper.isNotEmpty(pattern)
? new IntegerPatternFormat(pattern, getLocale(locale))
: new IntegerFormat();
} else if (clazz == long.class || clazz == Long.class) {
return ObjectHelper.isNotEmpty(pattern)
? new LongPatternFormat(pattern, getLocale(locale))
: new LongFormat();
} else if (clazz == float.class || clazz == Float.class) {
return ObjectHelper.isNotEmpty(pattern)
? new FloatPatternFormat(pattern, getLocale(locale))
: new FloatFormat(impliedDecimalSeparator, precision, getLocale(locale));
} else if (clazz == double.class || clazz == Double.class) {
return ObjectHelper.isNotEmpty(pattern)
? new DoublePatternFormat(pattern, getLocale(locale))
: new DoubleFormat(impliedDecimalSeparator, precision, getLocale(locale));
} else if (clazz == BigDecimal.class) {
return new BigDecimalFormat(impliedDecimalSeparator, precision, getLocale(locale));
} else if (clazz == BigInteger.class) {
return new BigIntegerFormat();
} else if (clazz == String.class) {
return new StringFormat();
} else if (clazz == Date.class) {
return new DatePatternFormat(pattern, timezone, getLocale(locale));
} else if (clazz == char.class || clazz == Character.class) {
return new CharacterFormat();
} else if (clazz.isEnum()) {
return new EnumFormat(clazz);
} else {
throw new IllegalArgumentException("Can not find a suitable formatter for the type: " + clazz.getCanonicalName());
}
}
/**
* Retrieves the format to use for the given type
*
* @param clazz represents the type of the format (String, Integer, Byte)
* @param locale optional locale for NumberFormat and DateFormat parsing.
* @return Format the formatter
* @throws IllegalArgumentException if not suitable formatter is found
*/
public static Format<?> getFormat(Class<?> clazz, String locale, DataField data) throws Exception {
String pattern = data.pattern();
String timezone = data.timezone();
int precision = data.precision();
return doGetFormat(clazz, pattern, locale, timezone, precision, data.impliedDecimalSeparator());
}
/**
* Retrieves the format to use for the given type
*
* @param clazz represents the type of the format (String, Integer, Byte)
* @param locale optional locale for NumberFormat and DateFormat parsing.
* @return Format the formatter
* @throws IllegalArgumentException if not suitable formatter is found
*/
public static Format<?> getFormat(Class<?> clazz, String locale, KeyValuePairField data) throws Exception {
String pattern = data.pattern();
String timezone = data.timezone();
int precision = data.precision();
return doGetFormat(clazz, pattern, locale, timezone, precision, data.impliedDecimalSeparator());
}
private static Locale getLocale(String locale) {
Locale answer = null;
if (locale != null && !(locale.length() == 0)) {
String[] result = locale.split("-");
if (result.length <= 2) {
answer = result.length == 1 ? new Locale(result[0]) : new Locale(result[0], result[1]);
}
}
return answer;
}
}