net.anwiba.commons.utilities.number.DoubleToStringConverter Maven / Gradle / Ivy

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/*
 * #%L
 * anwiba commons core
 * %%
 * Copyright (C) 2007 - 2016 Andreas Bartels
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 2.1 of the
 * License, or (at your option) any later version.
 * 
 * This program 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 Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */
package net.anwiba.commons.utilities.number;

import net.anwiba.commons.lang.functional.IConverter;

import java.text.DecimalFormat;

public final class DoubleToStringConverter implements IConverter {

  private final DecimalFormat format;

  public DoubleToStringConverter() {
    this(null);
  }

  public DoubleToStringConverter(final DecimalFormat format) {
    this.format = format;
  }

  @Override
  public String convert(final Double value) {
    if (value == null) {
      return null;
    }
    return this.format == null ? value.toString() : this.format.format(value);
  }
}