diff options
Diffstat (limited to 'petascope/src/petascope/wcps/server/core/BooleanScalarExpr.java')
| -rw-r--r-- | petascope/src/petascope/wcps/server/core/BooleanScalarExpr.java | 236 |
1 files changed, 117 insertions, 119 deletions
diff --git a/petascope/src/petascope/wcps/server/core/BooleanScalarExpr.java b/petascope/src/petascope/wcps/server/core/BooleanScalarExpr.java index fb99116..cfe64a3 100644 --- a/petascope/src/petascope/wcps/server/core/BooleanScalarExpr.java +++ b/petascope/src/petascope/wcps/server/core/BooleanScalarExpr.java @@ -14,126 +14,124 @@ * You should have received a copy of the GNU General Public License * along with rasdaman community. If not, see <http://www.gnu.org/licenses/>. * - * Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / - rasdaman GmbH. + * Copyright 2003 - 2010 Peter Baumann / rasdaman GmbH. * * For more information please see <http://www.rasdaman.org> * or contact Peter Baumann via <baumann@rasdaman.com>. */ -package petascope.wcps.server.core;
-
-import petascope.wcps.server.exceptions.InvalidCrsException;
-import petascope.wcps.server.exceptions.WCPSException;
-import org.w3c.dom.*;
-
-public class BooleanScalarExpr implements IRasNode {
-
- private IRasNode first, second;
- private String op;
- private boolean simple; // true if the expression is just a value
- private String value;
-
- public BooleanScalarExpr(Node node, XmlQuery xq) throws WCPSException, InvalidCrsException {
- if (node == null) {
- throw new WCPSException("Unexpected null node !");
- }
-
- String nodeName = node.getNodeName();
-
- simple = false;
-
- System.err.println("Parsing boolean scalar operation ...");
-
- if (nodeName.equals("booleanConstant")) {
- simple = true;
- value = node.getFirstChild().getNodeValue();
- } else if (nodeName.equals("booleanAnd")
- || nodeName.equals("booleanOr")
- || nodeName.equals("booleanXor")
- || nodeName.equals("booleanLessThan")
- || nodeName.equals("booleanLessOrEqual")
- || nodeName.equals("booleanGreaterThan")
- || nodeName.equals("booleanGreaterOrEqual")
- || nodeName.equals("booleanEqualNumeric")
- || nodeName.equals("booleanNotEqualNumeric")
- || nodeName.equals("booleanEqualString")
- || nodeName.equals("booleanNotEqualString")) {
- // Logical operations
- if (nodeName.equals("booleanAnd")
- || nodeName.equals("booleanOr")
- || nodeName.equals("booleanXor")) {
- // Remove the "boolean" in front
- op = nodeName.substring(7).toLowerCase();
-
- Node child = node.getFirstChild();
-
- first = new BooleanScalarExpr(child, xq);
- child = child.getNextSibling();
- second = new BooleanScalarExpr(child, xq);
- } else // Boolean Comparison operations between numbers or strings
- {
- if (nodeName.equals("booleanLessThan") || nodeName.equals("booleanLessOrEqual")
- || nodeName.equals("booleanGreaterThan") || nodeName.equals("booleanGreaterOrEqual")
- || nodeName.equals("booleanEqualNumeric") || nodeName.equals("booleanNotEqualNumeric")) {
- if (nodeName.equals("booleanLessThan")) {
- op = "<";
- }
- if (nodeName.equals("booleanLessOrEqual")) {
- op = "<=";
- }
- if (nodeName.equals("booleanGreaterThan")) {
- op = ">";
- }
- if (nodeName.equals("booleanGreaterOrEqual")) {
- op = ">=";
- }
- if (nodeName.equals("booleanEqualNumeric")) {
- op = "=";
- }
- if (nodeName.equals("booleanNotEqualNumeric")) {
- op = "!=";
- }
-
- Node child = node.getFirstChild();
-
- first = new NumericScalarExpr(child, xq);
- child = child.getNextSibling();
- second = new NumericScalarExpr(child, xq);
- } else {
- if (nodeName.equals("booleanEqualString")) {
- op = "=";
- }
- if (nodeName.equals("booleanNotEqualString")) {
- op = "!=";
- }
-
- Node child = node.getFirstChild();
-
- first = new StringScalarExpr(child, xq);
- child = child.getNextSibling();
- second = new StringScalarExpr(child, xq);
- }
- }
-
- } else if (nodeName.equals("booleanNot")) {
- op = "not";
- first = new BooleanScalarExpr(node.getFirstChild(), xq);
- } else {
- throw new WCPSException("Unexpected Binary Expression node : "
- + node.getNodeName());
- }
- System.err.println("*** Boolean Scalar Expr SUCCESS: " + node.getNodeName());
- }
-
- public String toRasQL() {
- if (simple) {
- return value;
- }
-
- if (op.equals("not")) {
- return "not(" + first.toRasQL() + ")";
- }
-
- return "(" + first.toRasQL() + ")" + op + "(" + second.toRasQL() + ")";
- }
-}
+package petascope.wcps.server.core; + +import petascope.exceptions.WCPSException; +import org.w3c.dom.*; + +public class BooleanScalarExpr implements IRasNode { + + private IRasNode first, second; + private String op; + private boolean simple; // true if the expression is just a value + private String value; + + public BooleanScalarExpr(Node node, XmlQuery xq) throws WCPSException { + if (node == null) { + throw new WCPSException("Unexpected null node !"); + } + + String nodeName = node.getNodeName(); + + simple = false; + + System.err.println("Parsing boolean scalar operation ..."); + + if (nodeName.equals("booleanConstant")) { + simple = true; + value = node.getFirstChild().getNodeValue(); + } else if (nodeName.equals("booleanAnd") + || nodeName.equals("booleanOr") + || nodeName.equals("booleanXor") + || nodeName.equals("booleanLessThan") + || nodeName.equals("booleanLessOrEqual") + || nodeName.equals("booleanGreaterThan") + || nodeName.equals("booleanGreaterOrEqual") + || nodeName.equals("booleanEqualNumeric") + || nodeName.equals("booleanNotEqualNumeric") + || nodeName.equals("booleanEqualString") + || nodeName.equals("booleanNotEqualString")) { + // Logical operations + if (nodeName.equals("booleanAnd") + || nodeName.equals("booleanOr") + || nodeName.equals("booleanXor")) { + // Remove the "boolean" in front + op = nodeName.substring(7).toLowerCase(); + + Node child = node.getFirstChild(); + + first = new BooleanScalarExpr(child, xq); + child = child.getNextSibling(); + second = new BooleanScalarExpr(child, xq); + } else // Boolean Comparison operations between numbers or strings + { + if (nodeName.equals("booleanLessThan") || nodeName.equals("booleanLessOrEqual") + || nodeName.equals("booleanGreaterThan") || nodeName.equals("booleanGreaterOrEqual") + || nodeName.equals("booleanEqualNumeric") || nodeName.equals("booleanNotEqualNumeric")) { + if (nodeName.equals("booleanLessThan")) { + op = "<"; + } + if (nodeName.equals("booleanLessOrEqual")) { + op = "<="; + } + if (nodeName.equals("booleanGreaterThan")) { + op = ">"; + } + if (nodeName.equals("booleanGreaterOrEqual")) { + op = ">="; + } + if (nodeName.equals("booleanEqualNumeric")) { + op = "="; + } + if (nodeName.equals("booleanNotEqualNumeric")) { + op = "!="; + } + + Node child = node.getFirstChild(); + + first = new NumericScalarExpr(child, xq); + child = child.getNextSibling(); + second = new NumericScalarExpr(child, xq); + } else { + if (nodeName.equals("booleanEqualString")) { + op = "="; + } + if (nodeName.equals("booleanNotEqualString")) { + op = "!="; + } + + Node child = node.getFirstChild(); + + first = new StringScalarExpr(child, xq); + child = child.getNextSibling(); + second = new StringScalarExpr(child, xq); + } + } + + } else if (nodeName.equals("booleanNot")) { + op = "not"; + first = new BooleanScalarExpr(node.getFirstChild(), xq); + } else { + throw new WCPSException("Unexpected Binary Expression node : " + + node.getNodeName()); + } + System.err.println("*** Boolean Scalar Expr SUCCESS: " + node.getNodeName()); + } + + public String toRasQL() { + if (simple) { + return value; + } + + if (op.equals("not")) { + return "not(" + first.toRasQL() + ")"; + } + + return "(" + first.toRasQL() + ")" + op + "(" + second.toRasQL() + ")"; + } +} |