Exemplo n.º 1
0
  /**
   * Returns the number of interior rings in a polygon.
   *
   * @param node xml element containing gml object(s)
   * @return integer number of interior rings
   * @throws QueryException query exception
   */
  @Deterministic
  public Int numInteriorRing(final ANode node) throws QueryException {
    final Geometry geo = geo(node, Q_GML_POLYGON);
    if (geo == null && checkGeo(node) != null)
      throw GeoErrors.geoType(node.qname().local(), "Polygon");

    return Int.get(((Polygon) geo).getNumInteriorRing());
  }
Exemplo n.º 2
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  /**
   * Return a boolean value that shows weather the line is a ring or not. A line is a ring if it is
   * closed and simple.
   *
   * @param node xml element containing gml object(s)
   * @return boolean value
   * @throws QueryException query exception
   */
  @Deterministic
  public Bln isRing(final ANode node) throws QueryException {
    final Geometry geo = geo(node, Q_GML_LINEARRING, Q_GML_LINESTRING);
    if (geo == null && checkGeo(node) != null)
      throw GeoErrors.geoType(node.qname().local(), "Line");

    return Bln.get(((LineString) geo).isRing());
  }
Exemplo n.º 3
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  /**
   * Returns the start point of a line.
   *
   * @param node xml element containing gml object(s)
   * @return start point geometry as a gml element
   * @throws QueryException query exception
   */
  @Deterministic
  public ANode startPoint(final ANode node) throws QueryException {
    final Geometry geo = geo(node, Q_GML_LINEARRING, Q_GML_LINESTRING);
    if (geo == null && checkGeo(node) != null)
      throw GeoErrors.geoType(node.qname().local(), "Line");

    return gmlWriter(((LineString) geo).getStartPoint());
  }
Exemplo n.º 4
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  /**
   * Returns the z-coordinate value for point.
   *
   * @param node xml element containing gml object(s)
   * @return z double value
   * @throws QueryException query exception
   */
  @Deterministic
  public Dbl z(final ANode node) throws QueryException {
    final Geometry geo = geo(node, Q_GML_POINT);
    if (geo == null && checkGeo(node) != null)
      throw GeoErrors.geoType(node.qname().local(), "Line");

    return Dbl.get(geo.getCoordinate().z);
  }
Exemplo n.º 5
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 /**
  * Returns the value of the specified attribute or {@code null}.
  *
  * @param name attribute to be found
  * @return attribute value
  */
 public byte[] attribute(final QNm name) {
   final BasicNodeIter iter = attributes();
   while (true) {
     final ANode node = iter.next();
     if (node == null) return null;
     if (node.qname().eq(name)) return node.string();
   }
 }
Exemplo n.º 6
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 @Override
 public boolean eq(final ANode node) {
   return node.type == type
       && (name == null || node.qname(tmpq).eq(name))
       && (ext == null
           || ext == AtomType.ATY
           || (node instanceof DBNode || strip) && ext == AtomType.UTY
           || type == NodeType.ATT
               && (ext == AtomType.AST || ext == AtomType.AAT || ext == AtomType.ATM));
 }
Exemplo n.º 7
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  /**
   * Returns the nth geometry of a geometry collection.
   *
   * @param node xml element containing gml object(s)
   * @param number index of i-th interior ring
   * @return n-th interior ring geometry (LineString) as a gml element
   * @throws QueryException query exception
   */
  @Deterministic
  public ANode interiorRingN(final ANode node, final Int number) throws QueryException {
    final Geometry geo = geo(node, Q_GML_POLYGON);
    if (geo == null && checkGeo(node) != null)
      throw GeoErrors.geoType(node.qname().local(), "Polygon");

    final long n = number.itr();
    final int max = ((Polygon) geo).getNumInteriorRing();
    if (n < 1 || n > max) throw GeoErrors.outOfRangeIdx(number);
    return gmlWriter(((Polygon) geo).getInteriorRingN((int) n - 1));
  }
Exemplo n.º 8
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  /**
   * Checks if the line is closed loop. That is, if the start Point is same with end Point.
   *
   * @param node xml element containing gml object(s)
   * @return boolean value
   * @throws QueryException query exception
   */
  @Deterministic
  public Bln isClosed(final ANode node) throws QueryException {
    final Geometry geo = geo(node, Q_GML_LINEARRING, Q_GML_LINESTRING, Q_GML_MULTILINESTRING);
    if (geo == null && checkGeo(node) != null)
      throw GeoErrors.geoType(node.qname().local(), "Line");

    return Bln.get(
        geo instanceof LineString
            ? ((LineString) geo).isClosed()
            : ((MultiLineString) geo).isClosed());
  }
Exemplo n.º 9
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  /**
   * Returns the nth point of a line.
   *
   * @param node xml element containing gml object(s)
   * @param number index of i-th point
   * @return n-th point as a gml element
   * @throws QueryException query exception
   */
  @Deterministic
  public ANode pointN(final ANode node, final Int number) throws QueryException {
    final Geometry geo = geo(node, Q_GML_LINEARRING, Q_GML_LINESTRING);
    if (geo == null && checkGeo(node) != null)
      throw GeoErrors.geoType(node.qname().local(), "Line");

    final int max = geo.getNumPoints();
    final long n = number.itr();
    if (n < 1 || n > max) throw GeoErrors.outOfRangeIdx(number);

    return gmlWriter(((LineString) geo).getPointN((int) n - 1));
  }
Exemplo n.º 10
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  /**
   * Reads an element as a gml node. Returns a geometry element or {@code null} if the element does
   * not match one of the specified types.
   *
   * @param node xml node containing gml object(s)
   * @param names allowed geometry types
   * @return geometry, or {@code null}
   * @throws QueryException query exception
   */
  private static Geometry geo(final ANode node, final QNm... names) throws QueryException {
    if (node.type != NodeType.ELM) throw EXPTYPE_X_X_X.get(null, NodeType.ELM, node.type, node);

    final QNm qname = node.qname();
    for (final QNm geo : names) {
      if (!qname.eq(geo)) continue;
      // type found... create reader and geometry element
      try {
        final String input = node.serialize().toString();
        final GMLReader gmlReader = new GMLReader();
        final GeometryFactory geoFactory = new GeometryFactory();
        return gmlReader.read(input, geoFactory);
      } catch (final Throwable ex) {
        throw GeoErrors.gmlReaderErr(ex);
      }
    }
    return null;
  }
Exemplo n.º 11
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  /**
   * Parses a jar descriptor.
   *
   * @param io XML input
   * @return jar descriptor container
   * @throws QueryException query exception
   */
  public JarDesc parse(final IO io) throws QueryException {
    final JarDesc desc = new JarDesc();
    try {
      final ANode node = new DBNode(io).children().next();
      for (final ANode next : node.children()) {
        if (next.type != NodeType.ELM) continue;

        final QNm name = next.qname();
        // ignore namespace to improve compatibility
        if (eq(JAR, name.local())) desc.jars.add(next.string());
        else if (eq(CLASS, name.local())) desc.classes.add(next.string());
        // [CG] Packaging: add warning if unknown elements are encountered
      }
      if (desc.jars.isEmpty()) throw BXRE_JARDESC_X.get(info, NOJARS);
      else if (desc.classes.isEmpty()) throw BXRE_JARDESC_X.get(info, NOCLASSES);
      return desc;
    } catch (final IOException ex) {
      throw BXRE_JARFAIL_X.get(info, ex);
    }
  }
Exemplo n.º 12
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 /**
  * Reads an element as a gml node. Returns a geometry element or throws an exception if the
  * element is of the wrong type.
  *
  * @param node xml node containing gml object(s)
  * @return geometry
  * @throws QueryException query exception
  */
 private Geometry checkGeo(final ANode node) throws QueryException {
   final Geometry geo = geo(node, QNAMES);
   if (geo == null) throw GeoErrors.unrecognizedGeo(node.qname().local());
   return geo;
 }