com.hazelcast.util.StringUtil Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.util;
import java.nio.charset.Charset;
import java.util.Locale;
/**
* Utility class for Strings.
*/
public final class StringUtil {
private static final Locale LOCALE_INTERNAL = Locale.ENGLISH;
private static final Charset UTF8_CHARSET = Charset.forName("UTF-8");
private StringUtil() {
}
public static String bytesToString(byte[] bytes, int offset, int length) {
return new String(bytes, offset, length, UTF8_CHARSET);
}
public static String bytesToString(byte[] bytes) {
return new String(bytes, UTF8_CHARSET);
}
public static byte[] stringToBytes(String s) {
return s.getBytes(UTF8_CHARSET);
}
public static boolean isNullOrEmpty(String s) {
if (s == null) {
return true;
}
return s.isEmpty();
}
/**
* HC specific settings, operands etc. use this method.
*/
public static String upperCaseInternal(String s) {
if (isNullOrEmpty(s)) {
return s;
}
return s.toUpperCase(LOCALE_INTERNAL);
}
/**
* HC specific settings, operands etc. use this method.
*/
public static String lowerCaseInternal(String s) {
if (isNullOrEmpty(s)) {
return s;
}
return s.toLowerCase(LOCALE_INTERNAL);
}
}