/*
* 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.syncope.core.provisioning.api.utils;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import org.apache.commons.lang3.time.DateUtils;
import org.apache.syncope.common.lib.SyncopeConstants;
/**
* Utility class for parsing / formatting date and numbers.
*/
public final class FormatUtils {
private static final ThreadLocal<SimpleDateFormat> DATE_FORMAT = new ThreadLocal<SimpleDateFormat>() {
@Override
protected SimpleDateFormat initialValue() {
SimpleDateFormat sdf = new SimpleDateFormat();
sdf.applyPattern(SyncopeConstants.DEFAULT_DATE_PATTERN);
return sdf;
}
};
private static final ThreadLocal<DecimalFormat> DECIMAL_FORMAT = new ThreadLocal<DecimalFormat>() {
@Override
protected DecimalFormat initialValue() {
DecimalFormat df = new DecimalFormat();
df.setDecimalFormatSymbols(DecimalFormatSymbols.getInstance(Locale.ENGLISH));
return df;
}
};
public static String format(final Date date) {
return format(date, true);
}
public static String format(final Date date, final boolean lenient) {
return format(date, lenient, null);
}
public static String format(final Date date, final boolean lenient, final String conversionPattern) {
SimpleDateFormat sdf = DATE_FORMAT.get();
if (conversionPattern != null) {
sdf.applyPattern(conversionPattern);
}
sdf.setLenient(lenient);
return sdf.format(date);
}
public static String format(final long number) {
return format(number, null);
}
public static String format(final long number, final String conversionPattern) {
DecimalFormat df = DECIMAL_FORMAT.get();
if (conversionPattern != null) {
df.applyPattern(conversionPattern);
}
return df.format(number);
}
public static String format(final double number) {
return format(number, null);
}
public static String format(final double number, final String conversionPattern) {
DecimalFormat df = DECIMAL_FORMAT.get();
if (conversionPattern != null) {
df.applyPattern(conversionPattern);
}
return df.format(number);
}
public static Date parseDate(final String source) throws ParseException {
return DateUtils.parseDate(source, SyncopeConstants.DATE_PATTERNS);
}
public static Date parseDate(final String source, final String conversionPattern) throws ParseException {
SimpleDateFormat sdf = DATE_FORMAT.get();
sdf.applyPattern(conversionPattern);
sdf.setLenient(false);
return sdf.parse(source);
}
public static Number parseNumber(final String source, final String conversionPattern) throws ParseException {
DecimalFormat df = DECIMAL_FORMAT.get();
df.applyPattern(conversionPattern);
return df.parse(source);
}
public static void clear() {
DATE_FORMAT.remove();
DECIMAL_FORMAT.remove();
}
private FormatUtils() {
// private empty constructor
}
}