svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.tools.evaluator.sqljep / src / main / java / org / gvsig / tools / evaluator / sqljep / function / OpenGISFunctions.java @ 43777
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package org.gvsig.tools.evaluator.sqljep.function; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.aggregate.Aggregate; |
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import org.gvsig.fmap.geom.primitive.OrientablePrimitive; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.DataTypes; |
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import org.medfoster.sqljep.ASTFunNode; |
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import org.medfoster.sqljep.BaseJEP; |
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import org.medfoster.sqljep.JepRuntime; |
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import org.medfoster.sqljep.ParseException; |
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import org.medfoster.sqljep.function.PostfixCommand; |
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public class OpenGISFunctions { |
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public static BaseFunction[] functions = { |
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new ST_Distance(),
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new ST_Disjoint(),
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new ST_Touches(),
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new ST_Crosses(),
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new ST_Within(),
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new ST_Overlaps(),
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new ST_Contains(),
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new ST_Covers(),
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new ST_CoveredBy(),
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new ST_Intersects(),
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new ST_Centroid(),
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new ST_Area(),
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// new ST_Length(),
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// new ST_Boundary(),
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new ST_Buffer(),
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new ST_ConvexHull(),
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new ST_Intersection(),
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new ST_Difference(),
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new ST_Union(),
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new ST_AsText(),
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// new ST_AsBinary(),
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// new ST_SRID(),
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new ST_Dimension(),
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new ST_Envelope(),
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new ST_IsSimple(),
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// new ST_IsRing(),
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new ST_NumGeometries(),
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new ST_GeometryN(),
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new ST_NumPoints(),
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new ST_PointN(),
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new ST_StartPoint(),
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new ST_EndPoint(),
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new ST_X(),
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new ST_Y(),
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new ST_Z(),
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new ST_GeomFromText(),
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new ST_isValid()
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}; |
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public static void registerFunctions() { |
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for( int i=0; i<functions.length; i++ ) { |
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BaseFunction f = functions[i]; |
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BaseJEP.addFunction(f.getName(),f ); |
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} |
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} |
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public static abstract class BaseFunction extends PostfixCommand { |
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public String getName() { |
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String name = this.getClass().getName(); |
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int index = name.lastIndexOf("."); |
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if ( index < 1 ) { |
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return name;
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} |
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return name.substring(index + 1); |
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} |
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public Geometry pop_geometry(JepRuntime runtime)
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throws ParseException { |
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return (Geometry) runtime.stack.pop();
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} |
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public double pop_double(JepRuntime runtime) |
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throws ParseException { |
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Double value = null; |
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try {
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value = (Double) ToolsLocator.getDataTypesManager().coerce(
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DataTypes.DOUBLE, runtime.stack.pop() |
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); |
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} catch (CoercionException ex) {
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throw new ParseException(this.getName(), ex); |
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} |
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return value.doubleValue();
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} |
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public int pop_int(JepRuntime runtime) |
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throws ParseException { |
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Integer value = null; |
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try {
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value = (Integer) ToolsLocator.getDataTypesManager().coerce(
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DataTypes.INT, runtime.stack.pop() |
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); |
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} catch (CoercionException ex) {
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throw new ParseException(this.getName(), ex); |
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} |
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return value.intValue();
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} |
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public String pop_string(JepRuntime runtime) |
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throws ParseException { |
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String value = null; |
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try {
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value = (String) ToolsLocator.getDataTypesManager().coerce(
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DataTypes.STRING, runtime.stack.pop() |
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); |
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} catch (CoercionException ex) {
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throw new ParseException(this.getName(), ex); |
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} |
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return value;
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} |
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public void evaluate(ASTFunNode node, JepRuntime runtime) |
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throws ParseException { |
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try {
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Comparable value = this.evaluate(runtime); |
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runtime.stack.push(value); |
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} catch (Exception ex) { |
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throw new ParseException(getName(), ex); |
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} |
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} |
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public abstract Comparable evaluate(JepRuntime runtime) throws Exception; |
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} |
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public static abstract class Function_geom1_geom2 extends BaseFunction { |
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final public int getNumberOfParameters() { |
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return 2; |
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} |
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public Comparable evaluate(JepRuntime runtime) |
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throws Exception { |
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Geometry geom1 = pop_geometry(runtime); |
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Geometry geom2 = pop_geometry(runtime); |
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return evaluate(geom1, geom2);
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} |
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public abstract Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception; |
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} |
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public static abstract class Function_geom1 extends BaseFunction { |
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final public int getNumberOfParameters() { |
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return 1; |
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} |
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public Comparable evaluate(JepRuntime runtime) |
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throws Exception { |
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Geometry geom1 = pop_geometry(runtime); |
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return evaluate(geom1);
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} |
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public abstract Comparable evaluate(Geometry geom1) throws Exception; |
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} |
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public static abstract class Function_geom1_double extends BaseFunction { |
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final public int getNumberOfParameters() { |
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return 2; |
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} |
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public Comparable evaluate(JepRuntime runtime) |
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throws Exception { |
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Geometry geom1 = pop_geometry(runtime); |
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double value = pop_double(runtime);
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return evaluate(geom1, value);
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} |
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public abstract Comparable evaluate(Geometry geom1, double value) throws Exception; |
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} |
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public static abstract class Function_geom1_int extends BaseFunction { |
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final public int getNumberOfParameters() { |
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return 2; |
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} |
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public Comparable evaluate(JepRuntime runtime) |
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throws Exception { |
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Geometry geom1 = pop_geometry(runtime); |
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int value = pop_int(runtime);
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return evaluate(geom1, value);
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} |
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public abstract Comparable evaluate(Geometry geom1, int value) throws Exception; |
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} |
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public static abstract class Function_string extends BaseFunction { |
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final public int getNumberOfParameters() { |
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return 1; |
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} |
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public Comparable evaluate(JepRuntime runtime) |
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throws Exception { |
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String value = pop_string(runtime);
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return evaluate(value);
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} |
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public abstract Comparable evaluate(String value) throws Exception; |
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} |
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public static class ST_Distance extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Double.valueOf(geom1.distance(geom2)); |
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} |
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} |
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public static class ST_Disjoint extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.disjoint(geom2)); |
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} |
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} |
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public static class ST_Touches extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.touches(geom2)); |
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} |
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} |
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public static class ST_Crosses extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.crosses(geom2)); |
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} |
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} |
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public static class ST_Within extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.within(geom2)); |
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} |
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} |
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public static class ST_Overlaps extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.overlaps(geom2)); |
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} |
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} |
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public static class ST_Contains extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.contains(geom2)); |
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} |
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} |
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public static class ST_Covers extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.covers(geom2)); |
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} |
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} |
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public static class ST_CoveredBy extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.coveredBy(geom2)); |
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} |
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} |
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public static class ST_Intersects extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return Boolean.valueOf(geom1.intersects(geom2)); |
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} |
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} |
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public static class ST_Centroid extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return geom1.centroid();
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} |
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} |
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public static class ST_Area extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return Double.valueOf(geom1.area()); |
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} |
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} |
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// public static class ST_Length extends Function_geom1 {
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//
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// public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception {
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// return Double.valueOf(geom1.length());
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// }
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// }
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// public static class ST_Boundary extends Function_geom1 {
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//
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// public Comparable evaluate(Geometry geom1) throws Exception {
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// return geom1.boundary();
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// }
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// }
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public static class ST_Buffer extends Function_geom1_double { |
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public Comparable evaluate(Geometry geom1, double value) throws Exception { |
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return geom1.buffer(value);
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} |
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} |
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public static class ST_ConvexHull extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return geom1.convexHull();
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} |
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} |
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public static class ST_Intersection extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return geom1.intersection(geom2);
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} |
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} |
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public static class ST_Difference extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return geom1.difference(geom2);
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} |
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} |
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public static class ST_Union extends Function_geom1_geom2 { |
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public Comparable evaluate(Geometry geom1, Geometry geom2) throws Exception { |
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return geom1.union(geom2);
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} |
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} |
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public static class ST_AsText extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return geom1.convertToWKT();
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} |
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} |
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// public static class ST_AsBinary extends Function_geom1 {
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//
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// public Comparable evaluate(Geometry geom1) throws Exception {
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// byte[] bytes = geom1.convertToWKB();
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// return bytes;
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// }
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// }
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// public static class ST_SRID extends Function_geom1 {
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//
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// public Comparable evaluate(Geometry geom1) throws Exception {
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// return geom1.getCRS();
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// }
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// }
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public static class ST_Dimension extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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GeometryType type = geom1.getGeometryType(); |
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if ( type.isSubTypeOf(Geometry.TYPES.POINT)
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|| type.isSubTypeOf(Geometry.TYPES.MULTIPOINT) ) {
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return 0; |
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} |
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if ( type.isSubTypeOf(Geometry.TYPES.CURVE)
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|| type.isSubTypeOf(Geometry.TYPES.MULTICURVE) ) {
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return 1; |
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} |
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if ( type.isSubTypeOf(Geometry.TYPES.SURFACE)
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|| type.isSubTypeOf(Geometry.TYPES.MULTISURFACE) ) {
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return 2; |
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} |
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if ( type.isSubTypeOf(Geometry.TYPES.SOLID) ) {
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return 3; |
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} |
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return -1; |
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} |
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} |
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public static class ST_Envelope extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return geom1.getEnvelope().getGeometry();
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} |
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} |
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public static class ST_IsSimple extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return geom1.isSimple();
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} |
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} |
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// public static class ST_IsRing extends Function_geom1 {
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// public Comparable evaluate(Geometry geom1) throws Exception {
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// return geom1.isClosed();
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// }
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// }
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public static class ST_NumGeometries extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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if ( geom1 instanceof Aggregate ) { |
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int n = ((Aggregate) geom1).getPrimitivesNumber();
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return Integer.valueOf(n); |
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} |
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return null; |
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} |
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} |
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public static class ST_GeometryN extends Function_geom1_int { |
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public Comparable evaluate(Geometry geom1, int value) throws Exception { |
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if ( geom1 instanceof Aggregate ) { |
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return ((Aggregate) geom1).getPrimitiveAt(value);
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} |
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return null; |
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} |
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} |
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public static class ST_NumPoints extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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if ( geom1 instanceof OrientablePrimitive ) { |
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int n = ((OrientablePrimitive) geom1).getNumVertices();
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return Integer.valueOf(n); |
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} |
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return null; |
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} |
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} |
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public static class ST_PointN extends Function_geom1_int { |
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public Comparable evaluate(Geometry geom1, int value) throws Exception { |
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if ( geom1 instanceof OrientablePrimitive ) { |
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return ((OrientablePrimitive) geom1).getVertex(value);
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} |
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return null; |
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} |
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} |
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public static class ST_StartPoint extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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if ( geom1 instanceof OrientablePrimitive ) { |
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return ((OrientablePrimitive) geom1).getVertex(0); |
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} |
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return null; |
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} |
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} |
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public static class ST_EndPoint extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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if ( geom1 instanceof OrientablePrimitive ) { |
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int n = ((OrientablePrimitive) geom1).getNumVertices();
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return ((OrientablePrimitive) geom1).getVertex(n - 1); |
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} |
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return null; |
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} |
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} |
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public static class ST_X extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return ((Point) geom1).getX(); |
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} |
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} |
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public static class ST_Y extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return ((Point) geom1).getY(); |
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} |
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} |
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public static class ST_Z extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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Point p = (Point) geom1; |
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if ( p.getGeometryType().getSubType() == Geometry.SUBTYPES.GEOM3D ) {
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return Double.valueOf(p.getCoordinateAt(2)); |
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} |
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return null; |
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} |
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} |
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public static class ST_GeomFromText extends Function_string { |
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public Comparable evaluate(String value) throws Exception { |
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GeometryManager manager = GeometryLocator.getGeometryManager(); |
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return manager.createFrom(value);
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} |
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} |
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public static class ST_isValid extends Function_geom1 { |
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public Comparable evaluate(Geometry geom1) throws Exception { |
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return Boolean.valueOf(geom1.isValid()); |
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} |
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} |
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|
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} |