/**
 * 
 */
package jp.gr.java_conf.blancpanda.basic;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.ResourceBundle;

import org.apache.commons.lang.StringUtils;

/**
 * SystemDate銇偡銈广儐銉犳棩鏅傘倰鍒跺尽銇欍倠銇熴倎銇偗銉┿偣銇с仚銆�
 * 銈枫偣銉嗐儬涓仹浣跨敤銇欍倠銈枫偣銉嗐儬鏃ユ檪銈�1銇ゃ伀銇俱仺銈併仸鍒跺尽銇欍倠銇撱仺銇с€�
 * 鐗瑰畾銇棩浠樸仹銇儐銈广儓銇屽彲鑳姐伀銇倞銇俱仚銆�
 * 
 */
public class SystemDate {

	private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
	private static final SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss.SSS");

	private static boolean isFixed() {
		String fixed = getProperty("SystemDate.fixed");
		if (fixed != null && fixed.toLowerCase().equals("true")) {
			return true;
		}
		return false;
	}

	private static Date fixDate() {
		Calendar cal = Calendar.getInstance();
		try {
			String dateStr = getProperty("SystemDate.fixedDate");
			String timeStr = getProperty("SystemDate.fixedTime");
			if (!StringUtils.isEmpty(dateStr)) {
				Calendar tmpCal = Calendar.getInstance();
				tmpCal.setTime(dateFormat.parse(dateStr));
				if (!StringUtils.isEmpty(timeStr)) {
					Calendar tmpCal2 = Calendar.getInstance();
					tmpCal2.setTime(timeFormat.parse(timeStr));
					cal.set(tmpCal.get(Calendar.YEAR),
							tmpCal.get(Calendar.MONTH),
							tmpCal.get(Calendar.DATE),
							tmpCal2.get(Calendar.HOUR_OF_DAY),
							tmpCal2.get(Calendar.SECOND),
							tmpCal2.get(Calendar.MILLISECOND));
				} else {
					cal.set(tmpCal.get(Calendar.YEAR),
							tmpCal.get(Calendar.MONTH),
							tmpCal.get(Calendar.DATE));
				}
			}
		} catch (ParseException e) {
			// 鍥哄畾鍊ゃ亴姝ｃ仐銇忓彇寰椼仹銇嶃仾銇嬨仯銇熷牬鍚堛伅鏈潵銇偡銈广儐銉犳棩鏅傘倰杩斻仚
			cal = Calendar.getInstance();
		}

		return cal.getTime();
	}

	public static Date getDate() {
		if (isFixed()) {
			return fixDate();
		} else {
			return Calendar.getInstance().getTime();
		}
	}

	public static Calendar getCalendar() {
		Calendar cal = Calendar.getInstance();
		if (isFixed()) {
			cal.setTime(fixDate());
		}
		return cal;
	}

	private static String getProperty(String key) {
		ResourceBundle rb = ResourceBundle.getBundle("basic",
				ResourceBundle.Control
						.getControl(ResourceBundle.Control.FORMAT_PROPERTIES));
		return rb.getString(key);
	}

}