1 files changed, 68 insertions, 0 deletions
diff --git a/petascope/src/petascope/wcps/server/core/ReduceScalarExpr.java b/petascope/src/petascope/wcps/server/core/ReduceScalarExpr.java
new file mode 100644
index 0000000..d7e343c
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+++ b/petascope/src/petascope/wcps/server/core/ReduceScalarExpr.java
@@ -0,0 +1,68 @@
+/*
+ * This file is part of PetaScope.
+ *
+ * PetaScope 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 3 of
+ * the License, or (at your option) any later version.
+ *
+ * PetaScope 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 PetaScope. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * For more information please see <http://www.PetaScope.org>
+ * or contact Peter Baumann via <baumann@rasdaman.com>.
+ *
+ * Copyright 2009 Jacobs University Bremen, Peter Baumann.
+ */
+package petascope.wcps.server.core;
+
+import petascope.wcps.server.exceptions.InvalidCrsException;
+import petascope.wcps.server.exceptions.WCPSException;
+import org.w3c.dom.*;
+
+public class ReduceScalarExpr implements IRasNode {
+
+    CoverageExpr expr;
+    String op;
+
+    public ReduceScalarExpr(Node node, XmlQuery xq) throws WCPSException, InvalidCrsException {
+        if (node.getNodeName().equals("reduce")) {
+            node = node.getFirstChild();
+        }
+        while ((node != null) && node.getNodeName().equals("#text")) {
+            node = node.getNextSibling();
+        }
+
+        System.err.println("Trying to parse ReduceScalarExpr ");
+        String nodeName = node.getNodeName();
+
+        if (nodeName.equals("all") || nodeName.equals("some") || nodeName.equals("count")
+                || nodeName.equals("add") || nodeName.equals("avg") || nodeName.equals("min")
+                || nodeName.equals("max")) {
+            op = nodeName;
+
+            if (!op.equals("all") && !op.equals("some")) {
+                op = op + "_cells";
+            }
+
+            node = node.getFirstChild();
+
+            while ((node != null) && (node.getNodeName().equals("#text"))) {
+                node = node.getNextSibling();
+            }
+
+            expr = new CoverageExpr(node, xq);
+        } else {
+            throw new WCPSException("invalid ReduceScalarExprType node : " + nodeName);
+        }
+    }
+
+    public String toRasQL() {
+        return op + "(" + expr.toRasQL() + ")";
+    }
+}