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/** |
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$Id $ |
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Copyright (C) 2014 Olle MÃ¥nsson |
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This file is part of the LabEnv extension for BASE. |
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Available at http://baseplugins.thep.lu.se/ |
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BASE main site: http://base.thep.lu.se/ |
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----------------------------------------------------------- |
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This is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 3 |
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of the License, or (at your option) any later version. |
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The software is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with BASE. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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package net.sf.basedb.labenv; |
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import java.text.SimpleDateFormat; |
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import net.sf.basedb.labenv.converter.DateToStringConverter; |
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import net.sf.basedb.labenv.converter.StringToDateConverter; |
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/** |
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Global constants for the LabEnv package. |
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@since 1.0 |
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*/ |
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public class LabEnv |
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{ |
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|
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/** |
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The current version of this package. |
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*/ |
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public static final String VERSION = "1.8-dev"; |
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/** |
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Default converter for date values to string values: yyyyMMdd |
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@since 2.2 |
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*/ |
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public static final DateToStringConverter CONVERTER_DATE_TO_STRING = new DateToStringConverter(new SimpleDateFormat("yyyyMMdd")); |
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/** |
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Default converter for string values to date values: yyyyMMdd |
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@since 2.2 |
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*/ |
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public static final StringToDateConverter CONVERTER_STRING_TO_DATE = new StringToDateConverter(new SimpleDateFormat("yyyyMMdd")); |
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/** |
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Default converter for date+time values to string values: yyyyMMdd HHmm |
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@since 2.2 |
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*/ |
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public static final DateToStringConverter CONVERTER_DATETIME_TO_STRING = new DateToStringConverter(new SimpleDateFormat("yyyyMMdd HHmm")); |
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/** |
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Default converter for string values to date+time values: yyyyMMdd HHmm |
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@since 2.2 |
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*/ |
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public static final StringToDateConverter CONVERTER_STRING_TO_DATETIME = new StringToDateConverter(new SimpleDateFormat("yyyyMMdd HHmm")); |
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/** |
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Compare two comparable objects with null safety. Two null objects |
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are considered equal and all null objects are sorted after all non-null |
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objects. |
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@return A negative value if the first argument should be sorted before the second, |
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zero if they are equal, a positive value if the second argument should be sorted |
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before the first |
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*/ |
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public static <T extends Comparable<T>> int nullSafeCompare(T o1, T o2) |
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{ |
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int result = 0; |
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if (o1 == o2) |
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{} |
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else if (o1 == null) |
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{ |
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result = 1; |
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} |
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else if (o2 == null) |
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{ |
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result = -1; |
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} |
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else |
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{ |
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result = o1.compareTo(o2); |
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} |
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return result; |
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} |
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/** |
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Round a floating point value to a given number of decimals. |
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@since 2.12 |
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*/ |
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public static float round(float value, int decimals) |
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{ |
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double factor = Math.pow(10, decimals); |
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return (float)(Math.round(factor * value) / factor); |
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} |
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|
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} |