1 files changed, 65 insertions, 0 deletions
diff --git a/petascope/src/petascope/wcps/server/cli/grammar.java b/petascope/src/petascope/wcps/server/cli/grammar.java
new file mode 100644
index 0000000..bc053dc
--- /dev/null
+++ b/petascope/src/petascope/wcps/server/cli/grammar.java
@@ -0,0 +1,65 @@
+package petascope.wcps.server.cli;
+
+import petascope.wcps.grammar.*;
+import petascope.wcps.grammar.wcpsParser.*;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import org.antlr.runtime.ANTLRInputStream;
+import org.antlr.runtime.CommonTokenStream;
+import org.antlr.runtime.RecognitionException;
+
+/** Test the WCPS grammar parser (generated by ANTLR).
+ * Input an Abstract Syntax query.
+ * Outputs the corresponding XML tree.
+ *
+ * @author Andrei Aiordachioaie
+ */
+public class grammar {
+
+    static String query;
+
+    public static void main(String[] args) throws RecognitionException, IOException {
+        if (args.length != 1) {
+            System.err.println("AbstractGrammarGen: no query as parameter !");
+//            query = "for a in (rgb) return " +
+//                    "condense + over $x x(1:10), $y y(25:75) " +
+//                    "using $x * (a[x($x), y($y)]).red";
+            query = "for c in (rgb) return encode(c[x:\"CRS:1\"(1:200)], \"jpeg\")";
+        } else {
+            query = args[0];
+        }
+
+        System.out.println("Running with the following query: " + query);
+
+        String xmlString = convertAbstractQueryToXml(query);
+        System.out.println("Output XML: \n****************\n" + xmlString);
+
+        System.exit(0);
+
+    }
+
+    /** Converts a WCPS abstract syntax query to an XML query
+     *
+     * @param query Abstract Syntax query
+     * @return String XML query
+     * @throws java.io.IOException
+     * @throws org.antlr.runtime.RecognitionException
+     */
+    public static String convertAbstractQueryToXml(String query) throws IOException, RecognitionException {
+        InputStream stream = new ByteArrayInputStream(query.getBytes()); // defaults to ISO-1
+        ANTLRInputStream inputStream = new ANTLRInputStream(stream);
+//        wcpsLexer lexer = new wcpsLexer( inputStream );
+        wcpsLexer lexer = new wcpsLexer(inputStream);
+
+        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+//        wcpsParser parser = new wcpsParser(tokenStream);
+        wcpsParser parser = new wcpsParser(tokenStream);
+
+        wcpsRequest_return rrequest = parser.wcpsRequest();
+        WCPSRequest request = rrequest.value;
+
+        String result = request.toXML();
+        return result;
+    }
+}