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/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.activiti.engine.impl.calendar;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Map;
import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.api.internal.Internal;
import org.activiti.engine.impl.context.Context;
@Internal
public class DefaultBusinessCalendar implements BusinessCalendar {
private static Map units = new HashMap();
static {
units.put("millis", Calendar.MILLISECOND);
units.put("seconds", Calendar.SECOND);
units.put("second", Calendar.SECOND);
units.put("minute", Calendar.MINUTE);
units.put("minutes", Calendar.MINUTE);
units.put("hour", Calendar.HOUR);
units.put("hours", Calendar.HOUR);
units.put("day", Calendar.DAY_OF_YEAR);
units.put("days", Calendar.DAY_OF_YEAR);
units.put("week", Calendar.WEEK_OF_YEAR);
units.put("weeks", Calendar.WEEK_OF_YEAR);
units.put("month", Calendar.MONTH);
units.put("months", Calendar.MONTH);
units.put("year", Calendar.YEAR);
units.put("years", Calendar.YEAR);
}
@Override
public Date resolveDuedate(String duedateDescription, int maxIterations) {
return resolveDuedate(duedateDescription);
}
public Date resolveDuedate(String duedate) {
Date resolvedDuedate = Context.getProcessEngineConfiguration().getClock().getCurrentTime();
String[] tokens = duedate.split(" and ");
for (String token : tokens) {
resolvedDuedate = addSingleUnitQuantity(resolvedDuedate, token);
}
return resolvedDuedate;
}
@Override
public Boolean validateDuedate(String duedateDescription, int maxIterations, Date endDate, Date newTimer) {
return true;
}
@Override
public Date resolveEndDate(String endDate) {
return null;
}
protected Date addSingleUnitQuantity(Date startDate, String singleUnitQuantity) {
int spaceIndex = singleUnitQuantity.indexOf(" ");
if (spaceIndex == -1 || singleUnitQuantity.length() < spaceIndex + 1) {
throw new ActivitiIllegalArgumentException("invalid duedate format: " + singleUnitQuantity);
}
String quantityText = singleUnitQuantity.substring(0, spaceIndex);
Integer quantity = new Integer(quantityText);
String unitText = singleUnitQuantity.substring(spaceIndex + 1).trim().toLowerCase();
int unit = units.get(unitText);
GregorianCalendar calendar = new GregorianCalendar();
calendar.setTime(startDate);
calendar.add(unit, quantity);
return calendar.getTime();
}
}
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