com.greenpepper.util.StringUtil Maven / Gradle / Ivy
/*
* Copyright (c) 2006 Pyxis Technologies inc.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA,
* or see the FSF site: http://www.fsf.org.
*/
package com.greenpepper.util;
import java.text.Normalizer;
/**
* StringUtil class.
*
* @author oaouattara
* @version $Id: $Id
*/
public final class StringUtil
{
private static final String EMPTY_STRING = "";
private StringUtil()
{
}
/**
* isEmpty.
*
* @param s a {@link java.lang.String} object.
* @return a boolean.
*/
public static boolean isEmpty( String s )
{
return s == null || s.equals( EMPTY_STRING );
}
/**
* isBlank.
*
* @param s a {@link java.lang.String} object.
* @return a boolean.
*/
public static boolean isBlank( String s )
{
return s == null || isEmpty( s.trim() );
}
/**
* isEquals.
*
* @param s1 a {@link java.lang.String} object.
* @param s2 a {@link java.lang.String} object.
* @return a boolean.
*/
public static boolean isEquals( String s1, String s2)
{
return s1 == null ? s2 == null : s1.equals(s2);
}
/**
* compare.
*
* @param s1 a {@link java.lang.String} object.
* @param s2 a {@link java.lang.String} object.
* @return a int.
*/
public static int compare( String s1, String s2)
{
if (s1 == null && s2 == null)
{
return 0;
}
else if (s1 == null && s2 != null)
{
return -1;
}
else if (s1 != null && s2 == null)
{
return 1;
}
else
{
return s1.compareTo(s2);
}
}
/**
* toNullIfEmpty.
*
* @param s a {@link java.lang.String} object.
* @return a {@link java.lang.String} object.
*/
public static String toNullIfEmpty( String s )
{
return isEmpty( s ) ? null : s;
}
/**
* toEmptyIfNull.
*
* @param s a {@link java.lang.String} object.
* @return a {@link java.lang.String} object.
*/
public static String toEmptyIfNull( String s )
{
return s == null ? "" : s;
}
/**
* removeDiacritics.
*
* @param s a {@link java.lang.String} object.
* @return a {@link java.lang.String} object.
*/
public static String removeDiacritics( String s )
{
return Normalizer.normalize( s, Normalizer.Form.NFD ).replaceAll( "\\p{InCombiningDiacriticalMarks}+", "" );
}
/**
* escapeSemiColon.
*
* @param s a {@link java.lang.String} object.
* @return a {@link java.lang.String} object.
*/
public static String escapeSemiColon(String s)
{
return s == null ? null : s.replaceAll( ";", "%3B" );
}
/**
* unescapeSemiColon.
*
* @param s a {@link java.lang.String} object.
* @return a {@link java.lang.String} object.
*/
public static String unescapeSemiColon(String s)
{
return s == null ? null : s.replaceAll( "%3B", ";" );
}
}