/*
* JBoss, Home of Professional Open Source.
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.timerservice.schedule.attribute;
import org.jboss.as.ejb3.timerservice.schedule.value.ScheduleExpressionType;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;
/**
* DayOfWeek
*
* @author Jaikiran Pai
* @version $Revision: $
*/
public class DayOfWeek extends IntegerBasedExpression {
public static final Integer MAX_DAY_OF_WEEK = 7;
public static final Integer MIN_DAY_OF_WEEK = 0;
private static final Map<String, Integer> DAY_OF_WEEK_ALIAS = new HashMap<String, Integer>();
static {
DAY_OF_WEEK_ALIAS.put("sun", 0);
DAY_OF_WEEK_ALIAS.put("mon", 1);
DAY_OF_WEEK_ALIAS.put("tue", 2);
DAY_OF_WEEK_ALIAS.put("wed", 3);
DAY_OF_WEEK_ALIAS.put("thu", 4);
DAY_OF_WEEK_ALIAS.put("fri", 5);
DAY_OF_WEEK_ALIAS.put("sat", 6);
}
private static final int OFFSET = DAY_OF_WEEK_ALIAS.get("sun") - Calendar.SUNDAY;
private SortedSet<Integer> offsetAdjustedDaysOfWeek = new TreeSet<Integer>();
public DayOfWeek(String value) {
super(value);
for (Integer dayOfWeek : this.absoluteValues) {
if (dayOfWeek == 7) {
this.absoluteValues.remove(dayOfWeek);
this.absoluteValues.add(new Integer(0));
}
}
if (OFFSET != 0) {
for (Integer dayOfWeek : this.absoluteValues) {
this.offsetAdjustedDaysOfWeek.add(dayOfWeek - OFFSET);
}
} else {
this.offsetAdjustedDaysOfWeek = this.absoluteValues;
}
}
@Override
protected Integer getMaxValue() {
return MAX_DAY_OF_WEEK;
}
@Override
protected Integer getMinValue() {
return MIN_DAY_OF_WEEK;
}
public int getFirst() {
if (this.scheduleExpressionType == ScheduleExpressionType.WILDCARD) {
return Calendar.SUNDAY;
}
return this.offsetAdjustedDaysOfWeek.first();
}
public static Set<String> getDaysOfWeek() {
return DAY_OF_WEEK_ALIAS.keySet();
}
@Override
protected boolean accepts(ScheduleExpressionType scheduleExprType) {
switch (scheduleExprType) {
case RANGE:
case LIST:
case SINGLE_VALUE:
case WILDCARD:
return true;
// day-of-week doesn't support increment
case INCREMENT:
default:
return false;
}
}
@Override
public boolean isRelativeValue(String value) {
// day-of-week doesn't support relative values
return false;
}
@Override
protected Integer parseInt(String alias) {
try {
return super.parseInt(alias);
} catch (NumberFormatException nfe) {
if (DAY_OF_WEEK_ALIAS != null) {
String lowerCaseAlias = alias.toLowerCase(Locale.ENGLISH);
return DAY_OF_WEEK_ALIAS.get(lowerCaseAlias);
}
}
return null;
}
public Integer getNextMatch(Calendar currentCal) {
if (this.scheduleExpressionType == ScheduleExpressionType.WILDCARD) {
return currentCal.get(Calendar.DAY_OF_WEEK);
}
int currentDayOfWeek = currentCal.get(Calendar.DAY_OF_WEEK);
for (Integer dayOfWeek : this.offsetAdjustedDaysOfWeek) {
if (currentDayOfWeek == dayOfWeek) {
return currentDayOfWeek;
}
if (dayOfWeek > currentDayOfWeek) {
return dayOfWeek;
}
}
return this.offsetAdjustedDaysOfWeek.first();
}
}