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| package org.apache.tapestry.valid; |
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| |
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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.Calendar; |
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| import java.util.Date; |
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| import java.util.GregorianCalendar; |
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| import java.util.HashMap; |
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| import java.util.Map; |
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| |
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| import org.apache.tapestry.IMarkupWriter; |
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| import org.apache.tapestry.IRequestCycle; |
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| import org.apache.tapestry.form.IFormComponent; |
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| public class DateValidator extends BaseValidator |
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| { |
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| private DateFormat _format; |
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| private String _displayFormat; |
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| private Date _minimum; |
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| private Date _maximum; |
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| private Calendar _calendar; |
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| private String _scriptPath = "/org/apache/tapestry/valid/DateValidator.script"; |
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| private static DateFormat defaultDateFormat = new SimpleDateFormat("MM/dd/yyyy"); |
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| private static final String defaultDateDisplayFormat = "MM/DD/YYYY"; |
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| private String _dateTooEarlyMessage; |
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| private String _dateTooLateMessage; |
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| private String _invalidDateFormatMessage; |
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| public DateValidator()
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| { |
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| } |
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| public DateValidator(String initializer)
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| { |
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| super(initializer);
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| } |
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| public void setFormat(DateFormat value)
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| { |
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| _format = value;
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| } |
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| public DateFormat getFormat()
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| { |
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| return _format;
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| } |
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| public DateFormat getEffectiveFormat()
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| { |
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| if (_format == null)
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| return defaultDateFormat;
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| return _format;
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| } |
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| public String getDisplayFormat()
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| { |
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| return _displayFormat;
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| } |
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| public void setDisplayFormat(String value)
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| { |
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| _displayFormat = value;
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| } |
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| public String getEffectiveDisplayFormat()
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| { |
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| if (_displayFormat == null)
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| { |
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| DateFormat format = getEffectiveFormat();
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| if (format instanceof SimpleDateFormat)
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| return ((SimpleDateFormat) format).toPattern();
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| return defaultDateDisplayFormat;
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| } |
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| return _displayFormat;
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| } |
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| public String toString(IFormComponent file, Object value)
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| { |
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| if (value == null)
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| return null;
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| Date date = (Date) value;
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| DateFormat format = getEffectiveFormat();
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| synchronized (format)
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| { |
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| return format.format(date);
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| } |
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| } |
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| public Object toObject(IFormComponent field, String value) throws ValidatorException
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| { |
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| if (checkRequired(field, value))
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| return null;
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| DateFormat format = getEffectiveFormat();
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| Date result;
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| try
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| { |
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| synchronized (format)
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| { |
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| result = format.parse(value);
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| } |
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| if (_calendar == null)
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| _calendar = new GregorianCalendar();
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| _calendar.setTime(result);
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| if (_calendar.get(Calendar.YEAR) < 1000)
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| result = null;
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| } |
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| catch (ParseException ex) |
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| { |
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| result = null;
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| } |
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| if (result == null)
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| throw new ValidatorException(buildInvalidDateFormatMessage(field),
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| ValidationConstraint.DATE_FORMAT); |
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| if (_minimum != null && _minimum.compareTo(result) > 0)
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| throw new ValidatorException(buildDateTooEarlyMessage(field, format.format(_minimum)),
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| ValidationConstraint.TOO_SMALL); |
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| if (_maximum != null && _maximum.compareTo(result) < 0)
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| throw new ValidatorException(buildDateTooLateMessage(field, format.format(_maximum)),
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| ValidationConstraint.TOO_LARGE); |
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| return result;
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| } |
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| public Date getMaximum()
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| { |
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| return _maximum;
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| } |
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| public void setMaximum(Date maximum)
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| { |
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| _maximum = maximum;
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| } |
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| public Date getMinimum()
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| { |
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| return _minimum;
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| } |
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| public void setMinimum(Date minimum)
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| { |
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| _minimum = minimum;
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| } |
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| public void renderValidatorContribution(IFormComponent field, IMarkupWriter writer,
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| IRequestCycle cycle) |
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| { |
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| if (!(isClientScriptingEnabled() && isRequired()))
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| return;
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| Map symbols = new HashMap();
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| symbols.put("requiredMessage", buildRequiredMessage(field));
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| processValidatorScript(_scriptPath, cycle, field, symbols);
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| } |
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| public String getScriptPath()
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| { |
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| return _scriptPath;
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| } |
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| public void setScriptPath(String scriptPath)
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| { |
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| _scriptPath = scriptPath;
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| } |
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| public String getDateTooEarlyMessage()
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| { |
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| return _dateTooEarlyMessage;
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| } |
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| public String getDateTooLateMessage()
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| { |
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| return _dateTooLateMessage;
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| } |
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| public String getInvalidDateFormatMessage()
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| { |
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| return _invalidDateFormatMessage;
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| } |
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| protected String buildInvalidDateFormatMessage(IFormComponent field)
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| { |
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| String pattern = getPattern(_invalidDateFormatMessage, "invalid-date-format", field
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| .getPage().getLocale()); |
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| return formatString(pattern, field.getDisplayName(), getEffectiveDisplayFormat());
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| } |
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| protected String buildDateTooEarlyMessage(IFormComponent field, String earliestDate)
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| { |
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| String pattern = getPattern(_dateTooEarlyMessage, "date-too-early", field.getPage()
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| .getLocale()); |
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| return formatString(pattern, field.getDisplayName(), earliestDate);
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| } |
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| protected String buildDateTooLateMessage(IFormComponent field, String latestDate)
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| { |
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| String pattern = getPattern(_dateTooLateMessage, "date-too-late", field.getPage()
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| .getLocale()); |
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| return formatString(pattern, field.getDisplayName(), latestDate);
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| } |
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| public void setDateTooEarlyMessage(String string)
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| { |
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| _dateTooEarlyMessage = string;
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| } |
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| public void setDateTooLateMessage(String string)
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| { |
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| _dateTooLateMessage = string;
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| } |
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| public void setInvalidDateFormatMessage(String string)
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| { |
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| _invalidDateFormatMessage = string;
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| } |
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| } |