[Schmitzm-commits] r1078 - trunk/src/schmitzm/lang/tree
scm-commit@wald.intevation.org
scm-commit at wald.intevation.org
Wed Oct 6 22:53:32 CEST 2010
Author: mojays
Date: 2010-10-06 22:53:31 +0200 (Wed, 06 Oct 2010)
New Revision: 1078
Modified:
trunk/src/schmitzm/lang/tree/OperationTree.java
trunk/src/schmitzm/lang/tree/OperationTreeParser.java
Log:
OperationTree/Parser: new functions millis(.) and datestr(.) to deal with dates
Modified: trunk/src/schmitzm/lang/tree/OperationTree.java
===================================================================
--- trunk/src/schmitzm/lang/tree/OperationTree.java 2010-10-05 10:08:07 UTC (rev 1077)
+++ trunk/src/schmitzm/lang/tree/OperationTree.java 2010-10-06 20:53:31 UTC (rev 1078)
@@ -29,6 +29,8 @@
******************************************************************************/
package schmitzm.lang.tree;
+import java.text.SimpleDateFormat;
+import java.util.Date;
import java.util.Random;
import java.util.regex.Pattern;
@@ -62,6 +64,8 @@
* <li>Test auf regulaeren Ausdruck: {@code "regex(expression,regular expr)"}</li>
* <li>n-tes Ergebnis eines {@linkplain String#split(String) String-Splits} ueber regulaeren Ausdruck: {@code "split(expression,regular expr,n)"}</li>
* <li>String-Ersetzung: {@code "replAll(expression,pattern expr,repl expr)"}</li>
+ * <li>Umwandung eines Datums-String in Milli-Sekunden: {@code millis(string expr, format string expr)}
+ * <li>Umwandung von Milli-Sekunden in einen Datums-String: {@code dateStr(num expr, format string expr)}
* </ul></li>
* <li>{@link UnaryOperatorNode}: Innere Knoten, die fuer einen 1-stelligen
* Operator auf dem <i>linken</i> Sohn stehen:
@@ -410,8 +414,27 @@
// boolean ret = Pattern.matches(operand2.toString(), operand1.toString());
return Pattern.matches(operand2.toString(), operand1.toString()) ? 1 : 0;
}
+ if ( operator.equals("MILLIS") ) {
+ SimpleDateFormat formatter = new SimpleDateFormat(operand2.toString());
+ try {
+ Date date = formatter.parse(operand1.toString());
+ return date.getTime();
+ } catch (Exception err) {
+ throw new UnsupportedOperationException(err);
+ }
+ }
}
+ // Long/String-Operationen
+ if ( operand1 instanceof Number && operand2 instanceof String ) {
+ if ( operator.equals("DATESTR") ) {
+ SimpleDateFormat formatter = new SimpleDateFormat(operand2.toString());
+ long millis = ((Number)operand1).longValue();
+ Date date = new Date(millis);
+ return formatter.format(date);
+ }
+ }
+
String op1Class = (operand1 != null) ? operand1.getClass().getSimpleName() : null;
String op2Class = (operand2 != null) ? operand2.getClass().getSimpleName() : null;
throw new UnsupportedOperationException( LangUtil.RESOURCE.getString("OperationTree.err.UnknownOperator",operator+" ("+op1Class+", "+op2Class+")") );
Modified: trunk/src/schmitzm/lang/tree/OperationTreeParser.java
===================================================================
--- trunk/src/schmitzm/lang/tree/OperationTreeParser.java 2010-10-05 10:08:07 UTC (rev 1077)
+++ trunk/src/schmitzm/lang/tree/OperationTreeParser.java 2010-10-06 20:53:31 UTC (rev 1078)
@@ -91,6 +91,8 @@
* <li>String-Konkatenation: {@code "+"}</li>
* <li>Test auf regulaeren Ausdruck: {@code "regex(expression,regular expr)"}</li>
* <li>n-tes Ergebnis eines {@linkplain String#split(String) String-Splits} ueber regulaeren Ausdruck: {@code "split(expression,regular expr,n)"}</li>
+ * <li>Umwandung eines Datums-String in Milli-Sekunden: {@code millis(string expr, format string expr)}
+ * <li>Umwandung von Milli-Sekunden in einen Datums-String: {@code dateStr(num expr, format string expr)}
* </ul></li>
* <li>den mehr-stelligen Zeichenketten-Operatoren: {@link MultiParamOperatorNode}
* <ul>
@@ -980,6 +982,22 @@
return new OperationTree.MultiParamOperatorNode(token,null,splitParam);
}
+ // MILLIS(string,formatexpr) = Umwandung von Datums-String (in angebenen Format) in Millisekunden
+ if ( token.equals("millis") ) {
+ // Parameter fuer MILLIS parsen
+ BinaryTreeNode[] millisParam = parseFunctionParameters("MILLIS",2);
+ // Baum fuer MILLIS
+ return new OperationTree.OperatorNode(token,millisParam[0],millisParam[1]);
+ }
+
+ // DATE(num,formatexpr) = Umwandung von Millisekunden in Datums-String (in angebenen Format)
+ if ( token.equals("datestr") ) {
+ // Parameter fuer MILLIS parsen
+ BinaryTreeNode[] millisParam = parseFunctionParameters("DATESTR",2);
+ // Baum fuer DATESTR
+ return new OperationTree.OperatorNode(token,millisParam[0],millisParam[1]);
+ }
+
// SUBSTR(string,startPos_inkl,endPos_exkl) = Teil-String
if ( token.equals("substr") ) {
// Parameter fuer SUBSTR parsen
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