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package tempcontroller.base; |
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import java.io.BufferedInputStream; |
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import java.io.BufferedOutputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
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import java.io.Serializable; |
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import java.text.DecimalFormat; |
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import java.util.regex.Matcher; |
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import java.util.regex.Pattern; |
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public class Utilities { |
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public static final long SEGUNDO = 1000; |
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public static final long MINUTO = SEGUNDO * 60; |
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public static final long HORA = MINUTO * 60; |
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private static Utilities singleton; |
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public void gravaSerializable(final File f, final Serializable obj) |
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throws IOException { |
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ObjectOutputStream oos = null; |
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try { |
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oos = new ObjectOutputStream( |
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new BufferedOutputStream(new FileOutputStream(f))); |
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oos.writeObject(obj); |
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} finally { |
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if (oos != null) { |
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oos.close(); |
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} |
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} |
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} |
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public Serializable leSerializable(final File f) |
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throws IOException, ClassNotFoundException { |
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ObjectInputStream ois = null; |
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Serializable toReturn = null; |
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try { |
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ois = new ObjectInputStream( |
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new BufferedInputStream(new FileInputStream(f))); |
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toReturn = (Serializable) ois.readObject(); |
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ois.close(); |
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} finally { |
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if (ois != null) { |
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ois.close(); |
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} |
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} |
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return toReturn; |
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} |
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public static Utilities getUtilities() { |
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synchronized (Utilities.class) { |
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if (singleton == null) { |
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singleton = new Utilities(); |
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} |
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} |
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return singleton; |
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} |
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private static Pattern patternTemperatura = |
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Pattern.compile("(-?\\d*\\.?,?\\d*)?( +)?([CKF])?"); |
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private static DecimalFormat decimalFormat = |
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new DecimalFormat("###,###.#"); |
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public static final int KELVIN_DELTA = 273; |
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public static final int KELVIN_LIMIAR = 200; |
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public double parseTemperatura(String s) { |
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double toReturn = Double.NaN; |
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try { |
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Matcher m = patternTemperatura.matcher(s); |
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if(m.matches()) { |
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String parteDecimal = m.group(1); |
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toReturn = decimalFormat.parse(s).doubleValue(); |
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String indicadorEscala = m.group(3); |
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if("C".equals(indicadorEscala)) { |
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toReturn = toReturn + KELVIN_DELTA; |
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} |
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} |
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} catch(Exception e) {} |
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return toReturn; |
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} |
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public String formatTemperatura(final double temperatura) { |
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if(Double.isNaN(temperatura)) { |
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return "Ambiente"; |
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} |
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StringBuilder builder = new StringBuilder(); |
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double auxTemperatura = temperatura; |
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String indicadorEscala = " K"; |
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if(temperatura > KELVIN_LIMIAR) { |
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auxTemperatura = temperatura - KELVIN_DELTA; |
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indicadorEscala = " C"; |
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} |
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builder.append(decimalFormat.format(auxTemperatura)); |
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builder.append(indicadorEscala); |
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return builder.toString(); |
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} |
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private static Pattern patternTempo = |
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Pattern.compile("(\\d\\d):(\\d\\d):(\\d\\d)"); |
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public long parseTempo(String s) { |
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long toReturn = 0L; |
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try { |
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Matcher m = patternTempo.matcher(s); |
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if(m.matches()) { |
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String horasStr = m.group(1); |
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String minutosStr = m.group(2); |
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String segundosStr = m.group(3); |
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int horas = Integer.parseInt(horasStr); |
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int minutos = Integer.parseInt(minutosStr); |
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int segundos = Integer.parseInt(segundosStr); |
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toReturn = SEGUNDO * segundos + MINUTO * minutos + HORA * horas; |
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} |
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} catch(Exception e) {} |
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return toReturn; |
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} |
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public String formatTempo(final long tempo) { |
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if(tempo <= SEGUNDO) { |
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return "00:00:00"; |
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} |
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long tempoAux = tempo; |
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long horas = tempoAux / HORA; |
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tempoAux = tempoAux % HORA; |
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long minutos = tempoAux / MINUTO; |
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tempoAux = tempoAux % MINUTO; |
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long segundos = tempoAux / SEGUNDO; |
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StringBuilder builder = new StringBuilder(); |
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if(horas >= 10) { |
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builder.append(horas); |
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} else { |
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builder.append('0'); |
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builder.append(horas); |
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} |
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builder.append(':'); |
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if(minutos >= 10) { |
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builder.append(minutos); |
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} else { |
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builder.append('0'); |
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builder.append(minutos); |
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} |
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builder.append(':'); |
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if(segundos >= 10) { |
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builder.append(segundos); |
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} else { |
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builder.append(0); |
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builder.append(segundos); |
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} |
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return builder.toString(); |
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} |
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public double fromCelsiusToKelvin(double celsius) { |
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return celsius + KELVIN_DELTA; |
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} |
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public double fromKelvinToCelsius(double kelvin) { |
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return kelvin - KELVIN_DELTA; |
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} |
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} |