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Core services for Usergrid system.
/*******************************************************************************
* Copyright 2012 Apigee Corporation
*
* 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.usergrid.persistence;
public enum CounterResolution {
ALL(0), MINUTE(1), FIVE_MINUTES(5), HALF_HOUR(30), HOUR(60), SIX_HOUR(
60 * 6), HALF_DAY(60 * 12), DAY(60 * 24), WEEK(60 * 24 * 7), MONTH(
60 * 24 * (365 / 12));
private final long interval;
CounterResolution(long minutes) {
interval = minutes * 60 * 1000;
}
public long interval() {
return interval;
}
public long round(long timestamp) {
if (interval == 0) {
return 1;
}
return (timestamp / interval) * interval;
}
public long next(long timestamp) {
return round(timestamp) + interval;
}
public static CounterResolution fromOrdinal(int i) {
if ((i < 0) || (i >= CounterResolution.values().length)) {
throw new IndexOutOfBoundsException("Invalid ordinal");
}
return CounterResolution.values()[i];
}
public static CounterResolution fromMinutes(int m) {
m = m * 60 * 1000;
for (int i = CounterResolution.values().length - 1; i >= 0; i--) {
if (CounterResolution.values()[i].interval <= m) {
return CounterResolution.values()[i];
}
}
return ALL;
}
public static CounterResolution fromString(String s) {
if (s == null) {
return ALL;
}
try {
return CounterResolution.valueOf(s.toUpperCase());
} catch (IllegalArgumentException e) {
}
try {
return fromMinutes(Integer.valueOf(s));
} catch (NumberFormatException e) {
}
return ALL;
}
}