DateConverter.java

package org.springframework.roo.converters;

import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import org.springframework.roo.shell.Completion;
import org.springframework.roo.shell.Converter;
import org.springframework.roo.shell.MethodTarget;

/**
 * {@link Converter} for {@link Date}.
 * 
 * @author Stefan Schmidt
 * @since 1.0
 */
public class DateConverter implements Converter<Date> {

  private final DateFormat dateFormat;

  public DateConverter() {
    dateFormat = DateFormat.getDateInstance(DateFormat.DEFAULT, Locale.getDefault());
  }

  public DateConverter(final DateFormat dateFormat) {
    this.dateFormat = dateFormat;
  }

  public Date convertFromText(final String value, final Class<?> requiredType,
      final String optionContext) {
    try {
      return dateFormat.parse(value);
    } catch (final ParseException e) {
      throw new IllegalArgumentException("Could not parse date: " + e.getMessage());
    }
  }

  public boolean getAllPossibleValues(final List<Completion> completions,
      final Class<?> requiredType, final String existingData, final String optionContext,
      final MethodTarget target) {
    return false;
  }

  public boolean supports(final Class<?> requiredType, final String optionContext) {
    return Date.class.isAssignableFrom(requiredType);
  }
}