/*
* The MIT License (MIT)
*
* Copyright (c) 2017 Lachlan Dowding
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package permafrost.tundra.math;
import java.text.MessageFormat;
/**
* A collection of convenience methods for working with bytes.
*/
public final class ByteHelper {
/**
* The default value used when parsing a null string.
*/
private static byte DEFAULT_BYTE_VALUE = 0;
/**
* Disallow instantiation of this class.
*/
private ByteHelper() {}
/**
* Converts the given object to a Byte.
*
* @param object The object to be converted.
* @return The converted object.
*/
public static Byte normalize(Object object) {
Byte value = null;
if (object instanceof Number) {
value = ((Number)object).byteValue();
} else if (object instanceof String) {
value = parse((String)object);
}
return value;
}
/**
* Parses the given string as an byte.
*
* @param input A string to be parsed as byte.
* @return Byte representing the given string, or 0 if the given string was null.
*/
public static byte parse(String input) {
return parse(input, DEFAULT_BYTE_VALUE);
}
/**
* Parses the given string as an byte.
*
* @param input A string to be parsed as byte.
* @param defaultValue The value returned if the given string is null.
* @return Byte representing the given string, or defaultValue if the given string is null.
*/
public static byte parse(String input, byte defaultValue) {
if (input == null) return defaultValue;
return Byte.parseByte(input);
}
/**
* Parses the given strings as bytea.
*
* @param input A list of strings to be parsed as bytes.
* @return A list of bytes representing the given strings.
*/
public static byte[] parse(String[] input) {
return parse(input, DEFAULT_BYTE_VALUE);
}
/**
* Parses the given strings as bytes.
*
* @param input A list of strings to be parsed as bytes.
* @param defaultValue The value returned if a string in the list is null.
* @return A list of bytes representing the given strings.
*/
public static byte[] parse(String[] input, byte defaultValue) {
if (input == null) return null;
byte[] output = new byte[input.length];
for (int i = 0; i < input.length; i++) {
output[i] = parse(input[i], defaultValue);
}
return output;
}
/**
* Serializes the given byte as a string.
*
* @param input The byte to be serialized.
* @return A string representation of the given byte.
*/
public static String emit(byte input) {
return Byte.toString(input);
}
/**
* Serializes the given bytes as strings.
*
* @param input A list of bytes to be serialized.
* @return A list of string representations of the given bytes.
*/
public static String[] emit(byte[] input) {
if (input == null) return null;
String[] output = new String[input.length];
for (int i = 0; i < input.length; i++) {
output[i] = emit(input[i]);
}
return output;
}
}