svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.h2 / src / main / java / org / gvsig / fmap / dal / store / h2 / H2SpatialSQLBuilder.java @ 43377
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package org.gvsig.fmap.dal.store.h2; |
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import java.sql.PreparedStatement; |
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import java.text.MessageFormat; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.List; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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import org.gvsig.fmap.dal.store.jdbc2.JDBCUtils; |
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import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase; |
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import org.gvsig.fmap.geom.Geometry; |
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public class H2SpatialSQLBuilder extends JDBCSQLBuilderBase { |
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private final H2SpatialHelper helper; |
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public H2SpatialSQLBuilder(H2SpatialHelper helper) {
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super();
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this.helper = helper;
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//
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// H2/H2GIS SQL functions reference list
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//
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// http://www.h2database.com/html/functions.html
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// http://www.h2gis.org/docs/1.3/functions/
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//
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// http://www.h2database.com/html/grammar.html
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//
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// http://www.h2database.com/html/datatypes.html
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//
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//
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config.set(SQLConfig.default_schema, "");
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config.set(SQLConfig.support_schemas, false);
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config.set(SQLConfig.allowAutomaticValues, true);
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config.set(SQLConfig.geometry_type_support, this.helper.getGeometrySupportType());
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config.set(SQLConfig.has_spatial_functions, this.helper.hasSpatialFunctions());
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config.remove_functionality(SQLConfig.DELETE_GEOMETRY_COLUMN_FROM_TABLE_schema_table); |
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config.remove_functionality(SQLConfig.DELETE_GEOMETRY_COLUMN_FROM_TABLE_table); |
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// config.set(SQLConfig.UPDATE_TABLE_STATISTICS_table,"ANALYZE TABLE {0} SAMPLE_SIZE 0");
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config.set(SQLConfig.UPDATE_TABLE_STATISTICS_table,"ANALYZE SAMPLE_SIZE 0");
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config.set(SQLConfig.ST_GeomFromEWKB, "GeomFromWKB({0}, {1})");
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config.set(SQLConfig.ST_AsEWKB, "AsWKB(({0}))");
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config.set(SQLConfig.lcase, "LOWER({0})");
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config.set(SQLConfig.ucase, "UPPER({0})");
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config.set(SQLConfig.operator_ILIKE, "({0}) ILIKE ({1})");
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config.set(SQLConfig.isNull, "( ({0}) IS NULL )");
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config.set(SQLConfig.notIsNull, "( ({0}) IS NOT NULL )");
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config.set(SQLConfig.type_boolean, "BOOLEAN");
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config.set(SQLConfig.type_byte, "TINYINT");
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config.set(SQLConfig.type_bytearray, "TINYINT");
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config.set(SQLConfig.type_geometry, "GEOMETRY");
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config.set(SQLConfig.type_char, "CHAR");
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config.set(SQLConfig.type_date, "DATE");
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config.set(SQLConfig.type_double, "DOUBLE");
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config.set(SQLConfig.type_numeric_p, "DECIMAL({0})");
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config.set(SQLConfig.type_numeric_ps, "DECIMAL({0},{1})");
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config.set(SQLConfig.type_bigdecimal, "DOUBLE");
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config.set(SQLConfig.type_float, "REAL");
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config.set(SQLConfig.type_int, "INTEGER");
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config.set(SQLConfig.type_long, "BIGINT");
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config.set(SQLConfig.type_string, "VARCHAR");
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config.set(SQLConfig.type_string_p, "VARCHAR({0})");
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config.set(SQLConfig.type_time, "TIME");
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config.set(SQLConfig.type_timestamp, "TIMESTAMP");
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config.set(SQLConfig.type_version, "VARCHAR");
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config.set(SQLConfig.type_URI, "VARCHAR");
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config.set(SQLConfig.type_URL, "VARCHAR");
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config.set(SQLConfig.type_FILE, "VARCHAR");
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config.set(SQLConfig.type_FOLDER, "VARCHAR");
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} |
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public class SpatiaLiteTableNameBuilderBase extends TableNameBuilderBase { |
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@Override
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public boolean has_schema() { |
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return false; |
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} |
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@Override
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public boolean has_database() { |
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return false; |
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} |
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} |
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protected class SpatiaLiteCreateTableBuilder extends CreateTableBuilderBase { |
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@Override
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public List<String> toStrings() { |
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List<String> sqls = new ArrayList<>(); |
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StringBuilder builder = new StringBuilder(); |
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builder.append("CREATE TABLE ");
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builder.append(this.table.toString());
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builder.append(" (");
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boolean first = true; |
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for (ColumnDescriptorBuilder column : columns) {
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if (first) {
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first = false;
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} else {
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builder.append(", ");
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} |
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builder.append(identifier(column.getName())); |
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builder.append(" ");
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builder.append(sqltype(column.getType(), column.getPrecision(), column.getSize())); |
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if( column.isGeometry() ) {
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int h2geomtype = getH2SpatialGeometryTypeFromGeometryType(
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column.getGeometryType(), |
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column.getGeometrySubtype() |
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); |
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if( h2geomtype>0 ) { |
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String constaint;
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if( this.table().has_schema() ) { |
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constaint = MessageFormat.format(
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"CHECK ({0}.ST_GEOMETRYTYPECODE({1}) = {2})",
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this.table().getSchema(),
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column.getName(), |
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h2geomtype |
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); |
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} else {
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constaint = MessageFormat.format(
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"CHECK (ST_GEOMETRYTYPECODE({0}) = {1})",
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column.getName(), |
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h2geomtype |
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); |
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} |
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builder.append(constaint); |
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} |
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} else {
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if (column.isPrimaryKey()) {
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builder.append(" PRIMARY KEY");
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} |
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if( column.isAutomatic() ) {
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builder.append(" AUTO_INCREMENT");
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} |
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if (column.getDefaultValue() == null) { |
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if (column.allowNulls()) {
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builder.append(" DEFAULT NULL");
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} |
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} else {
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if( column.getType() == DataTypes.DATE ) {
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builder.append(" DEFAULT ( date('");
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builder.append(column.getDefaultValue().toString()); |
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builder.append("') )");
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} else {
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builder.append(" DEFAULT '");
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builder.append(column.getDefaultValue().toString()); |
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builder.append("'");
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} |
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} |
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} |
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if (!column.allowNulls()) {
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builder.append(" NOT NULL");
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} |
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} |
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builder.append(" )");
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sqls.add(builder.toString()); |
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return sqls;
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} |
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public int getH2SpatialGeometryTypeFromGeometryType(int geomtype, int geomsubtype) { |
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//
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// https://github.com/orbisgis/h2gis/wiki/1.-Spatial-data#geometry-columns-view
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//
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switch(geomtype) {
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case Geometry.TYPES.POINT:
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return 1; |
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case Geometry.TYPES.MULTIPOINT:
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return 4; |
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case Geometry.TYPES.LINE:
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return 2; |
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case Geometry.TYPES.MULTILINE:
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return 5; |
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case Geometry.TYPES.POLYGON:
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return 3; |
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case Geometry.TYPES.MULTIPOLYGON:
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return 6; |
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default:
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return -1; |
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} |
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} |
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} |
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public class SpatiaLiteSelectBuilderBase extends SelectBuilderBase { |
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protected boolean isValid(StringBuilder message) { |
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if( message == null ) { |
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message = new StringBuilder(); |
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} |
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if( this.has_offset() && !this.has_order_by() ) { |
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// Algunos gestores de BBDD requieren que se especifique un
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// orden para poder usar OFFSET. Como eso parece buena idea para
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// asegurar que siempre tengamos los mismo resultados, lo exijimos
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// siempre.
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message.append("Can't use OFFSET without an ORDER BY.");
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return false; |
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} |
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return true; |
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} |
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@Override
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public String toString() { |
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// SpatiaLite requiere que si se especifica OFFSET deba especificarse
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// LIMIT obligatoriamente. Se le puede poner un LIMIT -1 cuando
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// queramos un OFFSET sin especificar un LIMIT.
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StringBuilder builder = new StringBuilder(); |
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if( !isValid(builder) ) {
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throw new IllegalStateException(builder.toString()); |
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} |
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builder.append("SELECT ");
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if( this.distinct ) { |
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builder.append("DISTINCT ");
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} |
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boolean first = true; |
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for (SelectColumnBuilder column : columns) {
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if (first) {
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first = false;
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} else {
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builder.append(", ");
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} |
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builder.append(column.toString()); |
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} |
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if ( this.has_from() ) { |
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builder.append(" FROM ");
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builder.append(this.from.toString());
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} |
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if ( this.has_where() ) { |
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builder.append(" WHERE ");
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builder.append(this.where.toString());
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} |
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if( this.has_order_by() ) { |
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builder.append(" ORDER BY ");
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first = true;
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for (OrderByBuilder item : this.order_by) { |
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if (first) {
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first = false;
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} else {
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builder.append(", ");
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} |
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builder.append(item.toString()); |
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} |
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} |
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if ( this.has_limit() && this.has_offset() ) { |
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builder.append(" LIMIT ");
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builder.append(this.limit);
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builder.append(" OFFSET ");
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builder.append(this.offset);
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} else if ( this.has_limit()) { |
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builder.append(" LIMIT ");
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builder.append(this.limit);
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} else if ( this.has_offset() ) { |
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builder.append(" LIMIT -1 OFFSET ");
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builder.append(this.offset);
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} |
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return builder.toString();
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} |
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} |
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@Override
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public String bytearray(byte[] data) { |
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// SpatiaLite usa un formato diferencte para especificar un array de
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// bytes. En lugar de 0x... usa x'...' .
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StringBuilder builder = new StringBuilder(); |
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builder.append("x'");
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for (byte abyte : data) { |
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int v = abyte & 0xff; |
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builder.append(String.format("%02x", v)); |
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} |
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builder.append("'");
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return builder.toString();
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} |
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@Override
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public Object sqlgeometrydimension(int type, int subtype) { |
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//'XY' or 2: 2D points, identified by X and Y coordinates
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//'XYM': 2D points, identified by X and Y coordinates. Each point stores an M-value (measure) as well
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//'XYZ' or 3: 3D points, identified by X, Y and Z coordinates
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//'XYZM' or 4: 3D points, identified by X, Y and Z coordinates. Each point stores an M-value (measure) as well
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switch(subtype) {
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case Geometry.SUBTYPES.GEOM2D:
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default:
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return "XY"; |
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case Geometry.SUBTYPES.GEOM2DM:
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return "XYM"; |
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case Geometry.SUBTYPES.GEOM3D:
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return "XYZ"; |
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case Geometry.SUBTYPES.GEOM3DM:
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return "XYZM"; |
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} |
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} |
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public H2SpatialHelper getHelper() {
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return this.helper; |
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} |
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@Override
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public void setParameters(PreparedStatement st, FeatureProvider feature) { |
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try {
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FeatureType featureType = feature.getType(); |
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List<Object> values = new ArrayList<>(); |
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for (Parameter parameter : this.getParameters()) { |
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if (parameter.is_constant()) {
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values.add(parameter.getValue()); |
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} else {
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String name = parameter.getName();
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FeatureAttributeDescriptor descriptor = featureType.getAttributeDescriptor(name); |
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switch( descriptor.getType() ) {
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case DataTypes.DATE:
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Date value = (Date)(feature.get(name)); |
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if( value == null ) { |
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values.add(null);
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} else {
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values.add(value.getTime()); |
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} |
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break;
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case DataTypes.GEOMETRY:
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Geometry geom = this.getHelper().forceGeometryType(
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descriptor.getGeomType(), |
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(Geometry)(feature.get(name)) |
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); |
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values.add(geom); |
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break;
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default:
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values.add(feature.get(name)); |
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break;
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} |
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} |
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} |
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JDBCUtils.setObjects(st, values, this.geometry_support_type());
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} catch (Exception ex) { |
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String f = "unknow"; |
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try {
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f = feature.toString(); |
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} catch (Exception ex2) { |
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// Do nothing
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} |
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throw new RuntimeException("Can't set parameters to prepared statement from the feature (" + f + ")", ex); |
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} |
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} |
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@Override
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protected TableNameBuilder createTableNameBuilder() {
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return new SpatiaLiteTableNameBuilderBase(); |
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} |
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@Override
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protected CreateTableBuilder createCreateTableBuilder() {
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return new SpatiaLiteCreateTableBuilder(); |
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} |
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@Override
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protected SelectBuilder createSelectBuilder() {
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return new SpatiaLiteSelectBuilderBase(); |
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} |
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} |