svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.time / org.gvsig.expressionevaluator.time.lib / org.gvsig.expressionevaluator.time.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / date / RelativeIntervalFunction.java @ 44644
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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 | 44080 | jjdelcerro | import java.util.Objects; |
7 | 43512 | jjdelcerro | import org.apache.commons.lang3.Range; |
8 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
9 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
10 | 44080 | jjdelcerro | import org.gvsig.timesupport.DataTypes; |
11 | import org.gvsig.timesupport.Instant; |
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12 | import org.gvsig.timesupport.RelativeInstant; |
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13 | import org.gvsig.timesupport.RelativeInterval; |
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14 | import org.gvsig.timesupport.TimeSupportLocator; |
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15 | import org.gvsig.tools.ToolsLocator; |
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16 | import org.gvsig.tools.dataTypes.CoercionException; |
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17 | import org.gvsig.tools.dataTypes.DataTypesManager; |
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18 | 43512 | jjdelcerro | |
19 | 44080 | jjdelcerro | public class RelativeIntervalFunction extends AbstractFunction { |
20 | 43512 | jjdelcerro | |
21 | 44080 | jjdelcerro | private final DataTypesManager.Coercion toInstant; |
22 | |||
23 | public RelativeIntervalFunction() {
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24 | super("Date", "RelativeInterval",Range.is(2), |
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25 | "Returns a relative interval from the arguments",
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26 | "RelativeInterval({{date1}}, data2)",
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27 | 43983 | jjdelcerro | new String[]{ |
28 | 44080 | jjdelcerro | "date1 - An object that represents a moment of time.",
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29 | "date2 - An object that represents a moment of time."
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30 | 43983 | jjdelcerro | }, |
31 | 44080 | jjdelcerro | "RelativeInterval",
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32 | false
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33 | 43983 | jjdelcerro | ); |
34 | 44080 | jjdelcerro | this.toInstant = ToolsLocator.getDataTypesManager().getCoercion(DataTypes.INSTANT);
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35 | 43512 | jjdelcerro | } |
36 | |||
37 | @Override
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38 | 44009 | jjdelcerro | public boolean allowConstantFolding() { |
39 | return true; |
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40 | } |
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41 | |||
42 | @Override
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43 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) { |
44 | 44080 | jjdelcerro | Object arg0 = getObject(args, 0); |
45 | Object arg1 = getObject(args, 1); |
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46 | try {
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47 | RelativeInstant instant0 = (RelativeInstant) this.toInstant.coerce(arg0);
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48 | RelativeInstant instant1 = (RelativeInstant) this.toInstant.coerce(arg1);
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49 | RelativeInterval interval = TimeSupportLocator.getManager().createRelativeInterval( |
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50 | instant0, |
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51 | instant1 |
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52 | ); |
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53 | return interval;
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54 | } catch (CoercionException ex) {
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55 | throw new RuntimeException("Can't create an interval from '"+Objects.toString(arg0, "")+":"+Objects.toString(arg1, "")+"'.", ex); |
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56 | } |
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57 | } |
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58 | 43512 | jjdelcerro | } |
59 | |||
60 |