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package mightypork.utils;
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/**
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* Utility for converting Object to data types; Can also convert strings to data
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* types.
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*
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* @author Ondřej Hruška (MightyPork)
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*/
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public class Convert {
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/**
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* Get INTEGER
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*
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* @param o object
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* @param def default value
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* @return integer
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*/
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public static int toInteger(Object o, Integer def)
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{
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try {
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if (o == null) return def;
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if (o instanceof Number) return ((Number) o).intValue();
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if (o instanceof String) return (int) Math.round(Double.parseDouble((String) o));
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if (o instanceof Boolean) return ((Boolean) o) ? 1 : 0;
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} catch (final NumberFormatException e) {}
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return def;
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}
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/**
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* Get DOUBLE
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*
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* @param o object
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* @param def default value
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* @return double
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*/
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public static double toDouble(Object o, Double def)
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{
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try {
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if (o == null) return def;
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if (o instanceof Number) return ((Number) o).doubleValue();
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if (o instanceof String) return Double.parseDouble((String) o);
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if (o instanceof Boolean) return ((Boolean) o) ? 1 : 0;
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} catch (final NumberFormatException e) {}
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return def;
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}
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/**
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* Get FLOAT
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*
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* @param o object
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* @param def default value
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* @return float
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*/
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public static double toFloat(Object o, Float def)
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{
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try {
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if (o == null) return def;
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if (o instanceof Number) return ((Number) o).floatValue();
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} catch (final NumberFormatException e) {}
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return def;
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}
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/**
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* Get BOOLEAN
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*
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* @param o object
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* @param def default value
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* @return boolean
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*/
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public static boolean toBoolean(Object o, Boolean def)
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{
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if (o == null) return def;
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if (o instanceof Boolean) return ((Boolean) o).booleanValue();
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if (o instanceof Number) return ((Number) o).intValue() != 0;
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if (o instanceof String) {
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final String s = ((String) o).trim().toLowerCase();
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if (s.equals("0")) return false;
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if (s.equals("1")) return true;
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try {
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final double n = Double.parseDouble(s);
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return n != 0;
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} catch (final NumberFormatException e) {}
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if (s.equals("true")) return true;
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if (s.equals("yes")) return true;
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if (s.equals("y")) return true;
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if (s.equals("a")) return true;
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if (s.equals("enabled")) return true;
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if (s.equals("false")) return false;
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if (s.equals("no")) return false;
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if (s.equals("n")) return false;
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if (s.equals("disabled")) return true;
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}
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return def;
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}
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/**
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* Get STRING
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*
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* @param o object
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* @param def default value
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* @return String
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*/
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public static String toString(Object o, String def)
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{
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if (o == null) return def;
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if (o instanceof String) return ((String) o);
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if (o instanceof Float) return Str.val((float) o);
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if (o instanceof Double) return Str.val((double) o);
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if (o instanceof Class<?>) {
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return Str.val(o);
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}
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return o.toString();
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}
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/**
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* Get INTEGER
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*
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* @param o object
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* @return integer
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*/
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public static int toInteger(Object o)
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{
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return toInteger(o, 0);
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}
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/**
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* Get DOUBLE
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*
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* @param o object
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* @return double
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*/
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public static double toDouble(Object o)
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{
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return toDouble(o, 0d);
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}
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/**
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* Get FLOAT
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*
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* @param o object
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* @return float
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*/
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public static double toFloat(Object o)
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{
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return toFloat(o, 0f);
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}
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/**
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* Get BOOLEAN
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*
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* @param o object
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* @return boolean
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*/
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public static boolean toBoolean(Object o)
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{
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return toBoolean(o, false);
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}
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/**
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* Get STRING
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*
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* @param o object
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* @return String
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*/
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public static String toString(Object o)
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{
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return toString(o, "");
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}
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}
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