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 / TimeFunction.java @ 44009
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1 | 43987 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.date; |
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2 | 43512 | jjdelcerro | |
3 | 43987 | jjdelcerro | import java.text.ParseException; |
4 | import java.text.SimpleDateFormat; |
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5 | import java.util.Date; |
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6 | 43512 | jjdelcerro | import org.apache.commons.lang3.Range; |
7 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
8 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
9 | |||
10 | 43987 | jjdelcerro | public class TimeFunction extends AbstractFunction { |
11 | 43512 | jjdelcerro | |
12 | 43987 | jjdelcerro | public TimeFunction() {
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13 | super("Date", "TIME",Range.between(1,2), |
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14 | "Returns a time from the arguments",
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15 | "TIME({{time}}, format)",
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16 | 43983 | jjdelcerro | new String[]{ |
17 | 43987 | jjdelcerro | "time - a string with a time",
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18 | "format - Optional. Format to use to parse the time"
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19 | 43983 | jjdelcerro | }, |
20 | 43987 | jjdelcerro | "Time"
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21 | 43983 | jjdelcerro | ); |
22 | 43512 | jjdelcerro | } |
23 | |||
24 | @Override
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25 | 44009 | jjdelcerro | public boolean allowConstantFolding() { |
26 | return true; |
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27 | } |
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28 | |||
29 | @Override
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30 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) { |
31 | 43987 | jjdelcerro | String date = getStr(args, 0); |
32 | String format = null; |
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33 | if( args.length==2 ) { |
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34 | format = getStr(args, 1);
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35 | 43512 | jjdelcerro | } |
36 | 43987 | jjdelcerro | SimpleDateFormat df = new SimpleDateFormat(); |
37 | if( format != null ) { |
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38 | df.applyPattern(format); |
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39 | 43512 | jjdelcerro | } |
40 | 43987 | jjdelcerro | try {
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41 | Date x = df.parse(date);
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42 | x.setDate(0);
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43 | x.setMonth(0);
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44 | x.setYear(0);
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45 | return x;
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46 | } catch (ParseException ex) { |
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47 | throw new RuntimeException("Can't parse date value '"+date+"' with format '"+format==null?"":format+"'", ex); |
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48 | 43512 | jjdelcerro | } |
49 | 43987 | jjdelcerro | |
50 | 43512 | jjdelcerro | } |
51 | |||
52 | |||
53 | } |