svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / date / DateFunction.java @ 44759
History | View | Annotate | Download (1.43 KB)
1 |
package org.gvsig.expressionevaluator.impl.function.date; |
---|---|
2 |
|
3 |
import java.text.ParseException; |
4 |
import java.text.SimpleDateFormat; |
5 |
import java.util.Date; |
6 |
import org.apache.commons.lang3.Range; |
7 |
import org.gvsig.expressionevaluator.Interpreter; |
8 |
import org.gvsig.expressionevaluator.spi.AbstractFunction; |
9 |
import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_DATE; |
10 |
|
11 |
public class DateFunction extends AbstractFunction { |
12 |
|
13 |
public DateFunction() {
|
14 |
super("Date", FUNCTION_DATE,Range.is(1), |
15 |
"Returns a date from the arguments",
|
16 |
FUNCTION_DATE+"({{date}})",
|
17 |
new String[]{ |
18 |
"date - a string with a date"
|
19 |
}, |
20 |
"Date"
|
21 |
); |
22 |
} |
23 |
|
24 |
@Override
|
25 |
public boolean allowConstantFolding() { |
26 |
return true; |
27 |
} |
28 |
|
29 |
@Override
|
30 |
public Object call(Interpreter interpreter, Object[] args) { |
31 |
Object date_obj = getObject(args, 0); |
32 |
if( date_obj instanceof Date ) { |
33 |
java.sql.Date x = new java.sql.Date(((Date) date_obj).getTime()); |
34 |
return x;
|
35 |
} |
36 |
String date = getStr(args, 0); |
37 |
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd"); |
38 |
try {
|
39 |
java.sql.Date x = java.sql.Date.valueOf(date); |
40 |
return x;
|
41 |
} catch (Exception ex) { |
42 |
throw new RuntimeException("Can't parse date value '"+date+"', expected format 'yyyy-MM-dd'.", ex); |
43 |
} |
44 |
|
45 |
} |
46 |
|
47 |
|
48 |
} |