001/*
002 * Units of Measurement Implementation for Java SE
003 * Copyright (c) 2005-2017, Jean-Marie Dautelle, Werner Keil, V2COM.
004 *
005 * All rights reserved.
006 *
007 * Redistribution and use in source and binary forms, with or without modification,
008 * are permitted provided that the following conditions are met:
009 *
010 * 1. Redistributions of source code must retain the above copyright notice,
011 *    this list of conditions and the following disclaimer.
012 *
013 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions
014 *    and the following disclaimer in the documentation and/or other materials provided with the distribution.
015 *
016 * 3. Neither the name of JSR-363 nor the names of its contributors may be used to endorse or promote products
017 *    derived from this software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
021 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
023 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
026 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
028 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package tec.uom.se.internal.format;
031
032import java.util.HashMap;
033import java.util.Map;
034import java.util.Objects;
035import java.util.Set;
036
037import javax.measure.format.UnitFormat;
038import javax.measure.spi.UnitFormatService;
039
040import tec.uom.lib.common.function.IntPrioritySupplier;
041import tec.uom.se.format.EBNFUnitFormat;
042import tec.uom.se.format.LocalUnitFormat;
043import tec.uom.se.format.SimpleUnitFormat;
044import tec.uom.se.format.SimpleUnitFormat.Flavor;
045
046/**
047 * Default format service.
048 *
049 * @author Werner Keil
050 * @version 0.5, January 19, 2017
051 */
052public class DefaultUnitFormatService implements UnitFormatService, IntPrioritySupplier {
053  static final int PRIO = 1000;
054
055  private static final String DEFAULT_FORMAT = Flavor.Default.name();
056
057  private final Map<String, UnitFormat> formats = new HashMap<>();
058
059  public DefaultUnitFormatService() {
060    formats.put(DEFAULT_FORMAT, SimpleUnitFormat.getInstance());
061    formats.put(Flavor.ASCII.name(), SimpleUnitFormat.getInstance(Flavor.ASCII));
062    formats.put("EBNF", EBNFUnitFormat.getInstance());
063    formats.put("Local", LocalUnitFormat.getInstance());
064  }
065
066  /*
067   * (non-Javadoc)
068   * 
069   * @see UnitFormatService#getUnitFormat(String)
070   */
071  @Override
072  public UnitFormat getUnitFormat(String formatName) {
073    Objects.requireNonNull(formatName, "Format name required");
074    return formats.get(formatName);
075  }
076
077  /*
078   * (non-Javadoc)
079   * 
080   * @see UnitFormatService#getUnitFormat()
081   */
082  @Override
083  public UnitFormat getUnitFormat() {
084    return getUnitFormat(DEFAULT_FORMAT);
085  }
086
087  public Set<String> getAvailableFormatNames() {
088    return formats.keySet();
089  }
090
091  @Override
092  public int getPriority() {
093    return PRIO;
094  }
095}