com.vividsolutions.jts.io.oracle.OraGeom Maven / Gradle / Ivy
/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* This library 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 library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jts.io.oracle;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.GeometryCollection;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.MultiLineString;
import com.vividsolutions.jts.geom.MultiPoint;
import com.vividsolutions.jts.geom.MultiPolygon;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.Polygon;
/**
* Represents the contents of an Oracle SDO_GEOMETRY structure.
* Also provides code values and convenience methods for working
* with SDO_GEOMETRY values.
*
* @author Martin Davis
*
*/
class OraGeom
{
public static final int NULL_DIMENSION = -1;
private static NumberFormat fmt = new DecimalFormat("0.################");
public static final String SQL_NULL = "NULL";
int gType;
int srid;
double[] point = null;
int[] elemInfo = null;
double[] ordinates = null;
private int geomType;
private int ordDim;
private int lrsDim;
public OraGeom(int gType, int srid, double[] ptType, int[] elemInfo, double[] ordinates)
{
this.gType = gType;
this.srid = srid;
this.point = ptType;
this.elemInfo = elemInfo;
this.ordinates = ordinates;
geomType = gTypeGeomType(gType);
ordDim = gTypeDim(gType);
lrsDim = gTypeMeasureDim(gType);
}
public OraGeom(int gType, int srid, int[] elemInfo, double[] ordinates)
{
this(gType, srid, null, elemInfo, ordinates);
}
public OraGeom(int gType, int srid, double[] ptType)
{
this(gType, srid, ptType, null, null);
}
public int geomType()
{
return geomType;
}
public int ordDim()
{
return ordDim;
}
public int lrsDim()
{
return lrsDim;
}
public boolean isCompactPoint()
{
return lrsDim == 0 && geomType == OraGeom.GEOM_TYPE.POINT && point != null && elemInfo == null;
}
public boolean isEqual(OraGeom og)
{
if (gType != og.gType) return false;
// if (srid != og.srid) return false;
if (! isEqual(point, og.point))
return false;
// assume is defined by elemInfo and ordinates
if (! isEqual(elemInfo, og.elemInfo))
return false;
if (! isEqual(ordinates, og.ordinates))
return false;
return true;
}
private boolean isEqual(double[] a1, double[] a2)
{
if (a2 == null || a1 == null) {
return a2 == a1;
}
if (a1.length != a2.length) return false;
for (int i = 0; i < a1.length; i++) {
// check NaN == NaN
if (Double.isNaN(a1[i]) && Double.isNaN(a2[i]))
continue;
if (a1[i] != a2[i])
return false;
}
return true;
}
private boolean isEqual(int[] a1, int[] a2)
{
if (a2 == null || a1 == null) {
return a2 == a1;
}
if (a1.length != a2.length) return false;
for (int i = 0; i < a1.length; i++) {
if (a1[i] != a2[i]) return false;
}
return true;
}
public String toString()
{
return toSQLString();
/*
return "GTYPE=" + gType
+ " SRID=" + srid
+ " ELEM_INFO=" + toStringElemInfo(elemInfo)
+ " ORDS=" + toString(ordinates);
*/
}
public String toSQLString()
{
StringBuffer buf = new StringBuffer();
buf.append("SDO_GEOMETRY(");
buf.append(gType);
buf.append(",");
buf.append(srid >= 0 ? String.valueOf(srid) : SQL_NULL);
buf.append(",");
buf.append(toStringPointType());
buf.append(",");
buf.append(toStringElemInfo());
buf.append(",");
buf.append(toStringOrdinates());
buf.append(")");
return buf.toString();
}
private String toString(double[] ordinates)
{
if (ordinates == null) return SQL_NULL;
StringBuffer buf = new StringBuffer();
for (int i = 0; i < ordinates.length; i++) {
if (i > 0) {
buf.append(",");
// spacer between triplets
if (i % ordDim == 0)
buf.append(" ");
}
buf.append(number(ordinates[i]));
}
return buf.toString();
}
private static String number(double d)
{
if (Double.isNaN(d)) return SQL_NULL;
return fmt.format(d);
}
public static String toStringElemInfo(int[] elemInfo)
{
if (elemInfo == null) return "null";
StringBuffer buf = new StringBuffer();
for (int i = 0; i < elemInfo.length; i++) {
if (i > 0) {
buf.append(",");
// spacer between triplets
if (i % 3 == 0)
buf.append(" ");
}
buf.append(elemInfo[i]);
}
return buf.toString();
}
private Object toStringOrdinates() {
if (ordinates == null) {
return SQL_NULL;
}
return "SDO_ORDINATE_ARRAY(" + toString(ordinates) + ")";
}
private Object toStringElemInfo() {
if (elemInfo == null) {
return SQL_NULL;
}
return "SDO_ELEM_INFO_ARRAY(" + toStringElemInfo(elemInfo) + ")";
}
private Object toStringPointType() {
if (point == null) {
return SQL_NULL;
}
return "SDO_POINT_TYPE("
+ number(point[0]) + ","
+ number(point[1]) + ","
+ number(point[2])
+ ")";
}
public int startingOffset(int elemIndex)
{
// if beyond actual elements, return "virtual" startingOffset
if (((elemIndex * 3)) >= elemInfo.length) {
return ordinates.length + 1;
}
return elemInfo[elemIndex * 3];
}
/**
* Extracts the SDO_ELEM_INFO ETYPE value for a given triplet.
*
* @param elemIndex index of the triplet to read
* @return ETYPE for indicated triplet, or -1 if the triplet index is out of range
*
* @see ETYPE
*/
public int eType(int elemIndex)
{
if (((elemIndex * 3) + 1) >= elemInfo.length) {
return -1;
}
return elemInfo[(elemIndex * 3) + 1];
}
/**
* Extracts the SDO_ELEM_INFO interpretation value (SDO_INTERPRETATION) for a given triplet.
*
* JTS valid interpretation values are: 1 for straight edges, 3 for rectangle
* Other interpretation value include: 2 for arcs, 4 for circles
*
* @param elemIndex index of the triplet to read
* @return interpretation value, or -1 if the triplet index is out of range
*/
public int interpretation(int elemIndex)
{
if (((elemIndex * 3) + 2) >= elemInfo.length) {
return -1;
}
return elemInfo[(elemIndex * 3) + 2];
}
public int ordinateLen()
{
if (ordinates != null)
return ordinates.length;
return 0;
}
public int numElements()
{
if (elemInfo == null) return 0;
return elemInfo.length / 3;
}
/**
* Computes the SDO_GTYPE code for the given D, L, and TT components.
*
* @param dim the coordinate dimension
* @param lrsDim the measure dimension
* @param geomType the geometry type code
* @return the SDO_GTYPE code
*/
public static int gType(int dim, int lrsDim, int geomType)
{
return dim * 1000 + lrsDim * 100 + geomType;
}
/**
* Returns the GTYPE GEOM_TYPE code
* corresponding to the geometry type.
*
* @see OraGeom.GEOM_TYPE
*
* @param geom the geometry to compute the GEOM_TYPE for
* @return geom type code, if known, or UNKNOWN
*/
static int geomType(Geometry geom) {
if (geom == null) {
return OraGeom.GEOM_TYPE.UNKNOWN_GEOMETRY;
} else if (geom instanceof Point) {
return OraGeom.GEOM_TYPE.POINT;
} else if (geom instanceof LineString) {
return OraGeom.GEOM_TYPE.LINE;
} else if (geom instanceof Polygon) {
return OraGeom.GEOM_TYPE.POLYGON;
} else if (geom instanceof MultiPoint) {
return OraGeom.GEOM_TYPE.MULTIPOINT;
} else if (geom instanceof MultiLineString) {
return OraGeom.GEOM_TYPE.MULTILINE;
} else if (geom instanceof MultiPolygon) {
return OraGeom.GEOM_TYPE.MULTIPOLYGON;
} else if (geom instanceof GeometryCollection) {
return OraGeom.GEOM_TYPE.COLLECTION;
}
return OraGeom.GEOM_TYPE.UNKNOWN_GEOMETRY;
}
/**
* Extracts the coordinate dimension containing the Measure value from
* an SDO_GTYPE code.
* For a measured geometry this is 0, 3 or 4. 0 indicates that the last dimension is the measure dimension
* For an non-measured geometry this is 0.
*
* @param gType an SDO_GTYPE code
* @return the Measure dimension
*/
static int gTypeMeasureDim(int gType) {
return (gType % 1000) / 100;
}
/**
* Extracts the coordinate dimension from an SDO_GTYPE code.
*
* @param gType an SDO_GTYPE code
* @return the coordinate dimension
*/
static int gTypeDim(int gType) {
return gType / 1000;
}
/**
* Extracts the GEOM_TYPE code from an SDO_GTYPE code.
*
* @param gType an SDO_GTYPE code
* @return the GEOM_TYPE code
*/
static int gTypeGeomType(int gType) {
return gType % 100;
}
/**
* Extracts the SDO_ELEM_INFO start index (SDO_STARTING_OFFSET) in the ordinate array for a given triplet.
* Starting offsets are 1-based indexes.
*
* @param elemInfo the SDO_ELEM_INFO array
* @param tripletIndex index of the triplet to read
* @return Starting Offset, or -1 if the triplet index is too large
*/
static int startingOffset(int[] elemInfo, int tripletIndex) {
if (((tripletIndex * 3) + 0) >= elemInfo.length) {
return -1;
}
return elemInfo[(tripletIndex * 3) + 0];
}
/**
* Extracts the SDO_ELEM_INFO interpretation value (SDO_INTERPRETATION) for a given triplet.
*
* JTS valid interpretation values are: 1 for straight edges, 3 for rectangle
* Other interpretation value include: 2 for arcs, 4 for circles
*
* @param elemInfo the SDO_ELEM_INFO array
* @param tripletIndex index of the triplet to read
* @return interpretation value, or -1 if the triplet index is too large
*/
static int interpretation(int[] elemInfo, int tripletIndex) {
if (((tripletIndex * 3) + 2) >= elemInfo.length) {
return -1;
}
return elemInfo[(tripletIndex * 3) + 2];
}
/**
* Extracts the SDO_ELEM_INFO ETYPE value for a given triplet.
*
* @see OraGeom.ETYPE for an indication of possible values
*
* @param elemInfo the SDO_ELEM_INFO array
* @param tripletIndex index of the triplet to read
* @return ETYPE for indicated triplet, or -1 if the triplet index is too large
*/
static int eType(int[] elemInfo, int tripletIndex) {
if (((tripletIndex * 3) + 1) >= elemInfo.length) {
return -1;
}
return elemInfo[(tripletIndex * 3) + 1];
}
/**
* Codes used in SDO_INTERPRETATION attribute.
*
* @author Martin Davis
*
*/
static final class INTERP {
public static final int POINT = 1;
public static final int LINESTRING = 1;
public static final int POLYGON = 1;
public static final int RECTANGLE = 3;
}
/**
* Codes used to specify geometry type
* These are used in the last two digits in a GTYPE value.
*/
static final class GEOM_TYPE {
/** TT code representing Unknown type */
public static final int UNKNOWN_GEOMETRY = 00;
/** TT code representing Point */
public static final int POINT = 01;
/** TT code representing Line (or Curve) */
public static final int LINE = 02;
/** TT code representing Polygon */
public static final int POLYGON = 03;
/** TT code representing Collection */
public static final int COLLECTION = 04;
/** TT code representing MultiPoint */
public static final int MULTIPOINT = 05;
/** TT code representing MultiLine (or MultiCurve) */
public static final int MULTILINE = 06;
/** TT code representing MULTIPOLYGON */
public static final int MULTIPOLYGON = 07;
}
/**
* Codes used in the SDO_ETYPE attribute.
* The code indicates the type of element denoted by an SDO_ELEM_INFO triplet.
*/
static final class ETYPE
{
/** ETYPE code representing Point */
public static final int POINT = 1;
/** ETYPE code representing Line */
public static final int LINE = 2;
/** ETYPE code representing Polygon ring
* Shell or hole is determined by orientation (CCW or CW).
* Now deprecated.
*/
public static final int POLYGON = 3;
/**
* ETYPE code representing exterior counterclockwise polygon ring
*/
public static final int POLYGON_EXTERIOR = 1003;
/** ETYPE code representing interior clockwise polygon ring */
public static final int POLYGON_INTERIOR = 2003;
}
/**
* Oracle types used by SDO_GEOMETRY
*/
public static final String TYPE_GEOMETRY = "MDSYS.SDO_GEOMETRY";
public static final String TYPE_ELEM_INFO_ARRAY = "MDSYS.SDO_ELEM_INFO_ARRAY";
public static final String TYPE_ORDINATE_ARRAY = "MDSYS.SDO_ORDINATE_ARRAY";
public static final String TYPE_POINT_TYPE = "MDSYS.SDO_POINT_TYPE";
/**
* Value indicating a Null SRID.
*/
public static final int SRID_NULL = -1;
}