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package org.apache.commons.contract.constraints; |
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import java.text.DateFormat; |
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import java.text.ParseException; |
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import java.text.SimpleDateFormat; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.List; |
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import org.apache.commons.contract.Context; |
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import org.apache.commons.i18n.bundles.ErrorBundle; |
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import org.apache.commons.i18n.bundles.TextBundle; |
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public class DateConstraints implements Constraints { |
| 15 | 0 | public static final DateConstraints UNCONSTRAINED = new DateConstraints(); |
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protected boolean constrained; |
| 18 | 0 | protected List allowedValues = new ArrayList(); |
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protected Date earliest, latest; |
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protected String formatPattern; |
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|
| 22 | 0 | public DateConstraints() { |
| 23 | 0 | this.constrained = false; |
| 24 | 0 | } |
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| 26 | 0 | public DateConstraints(String formatPattern) { |
| 27 | 0 | this.constrained = false; |
| 28 | 0 | this.formatPattern = formatPattern; |
| 29 | 0 | } |
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| 31 | 0 | public DateConstraints(Date earliest, Date latest) { |
| 32 | 0 | constrained = true; |
| 33 | 0 | this.earliest = earliest; |
| 34 | 0 | this.latest = latest; |
| 35 | 0 | } |
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public boolean isConstrained() { |
| 38 | 0 | return constrained; |
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} |
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public void setEarliest(Date earliest) { |
| 42 | 0 | this.earliest = earliest; |
| 43 | 0 | } |
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public void setLatest(Date latest) { |
| 46 | 0 | this.latest = latest; |
| 47 | 0 | } |
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public void setFormatPattern(String dateFormat) { |
| 50 | 0 | this.formatPattern = dateFormat; |
| 51 | 0 | } |
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public Object cast(Object value, Context context) throws CastException { |
| 54 | 0 | Date date = null; |
| 55 | 0 | if ( value instanceof Date) { |
| 56 | 0 | return value; |
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} else { |
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try { |
| 59 | 0 | String valueAsString = (String)StringConstraints.UNCONSTRAINED.cast(value, null); |
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try { |
| 61 | 0 | date = new Date(Long.valueOf(valueAsString).longValue()); |
| 62 | 0 | } catch ( NumberFormatException exception ) { |
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try { |
| 64 | 0 | if ( formatPattern == null ) { |
| 65 | 0 | date = DateFormat.getInstance().parse(valueAsString); |
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} else { |
| 67 | 0 | date = new SimpleDateFormat(formatPattern).parse(valueAsString); |
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} |
| 69 | 0 | } catch (ParseException e) { |
| 70 | 0 | throw new CastException(new ErrorBundle("uncastableDateValue", new Object[] { value }), e); |
| 71 | 0 | } |
| 72 | 0 | } |
| 73 | 0 | } catch ( CastException exception ) { |
| 74 | 0 | throw new CastException(new ErrorBundle("uncastableDateValue", new Object[] { value }), exception); |
| 75 | 0 | } |
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} |
| 77 | 0 | return date; |
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} |
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public void validate(Object value, Context context) throws ValidationException { |
| 81 | 0 | Date date = (Date)value; |
| 82 | 0 | if ( constrained && ( date.after(latest) || date.before(earliest) ) ) { |
| 83 | 0 | throw new ValidationException(new ErrorBundle("invalidDate", new Object[] { date, earliest, latest })); |
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} |
| 85 | 0 | } |
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public TextBundle verboseConstraints() { |
| 88 | 0 | if ( constrained ) { |
| 89 | 0 | return new TextBundle("constrainedDateRange", new Object[] { earliest, latest }); |
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} |
| 91 | 0 | return new TextBundle("unconstrainedDate"); |
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} |
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} |