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Software changelogs (XML schema)

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/*
 * Copyright © 2014  http://io7m.com
 * 
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package com.io7m.changelogs.schema;

import java.net.URI;
import java.net.URISyntaxException;

/**
 * Functions for accessing the schema files.
 */

public final class CSchema
{
  /**
   * The public XML URI for changelog documents.
   */

  public static final URI XML_URI;

  static {
    try {
      XML_URI = new URI("http://schemas.io7m.com/changelog/2.0.0");
    } catch (final URISyntaxException e) {
      throw new RuntimeException(e);
    }
  }

  /**
   * @return The URI of the RNG schema file.
   */

  public static URI getURISchemaRNG()
  {
    try {
      return CSchema.class.getResource(
        "/com/io7m/changelogs/schema/schema.rng").toURI();
    } catch (final URISyntaxException e) {
      throw new AssertionError(e);
    }
  }

  /**
   * @return The URI of the XSD schema file.
   */

  public static URI getURISchemaXSD()
  {
    try {
      return CSchema.class.getResource(
        "/com/io7m/changelogs/schema/schema.xsd").toURI();
    } catch (final URISyntaxException e) {
      throw new AssertionError(e);
    }
  }

  /**
   * @return The URI of the XSD XML schema file.
   */

  public static URI getURIXMLXSD()
  {
    try {
      return CSchema.class
        .getResource("/com/io7m/changelogs/schema/xml.xsd")
        .toURI();
    } catch (final URISyntaxException e) {
      throw new AssertionError(e);
    }
  }

  private CSchema()
  {
    throw new AssertionError("Unreachable");
  }
}