com.ning.billing.meter.timeline.consumer.TimeRangeSampleProcessor Maven / Gradle / Ivy
/*
* Copyright 2010-2012 Ning, Inc.
*
* Ning licenses this file to you 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 com.ning.billing.meter.timeline.consumer;
import org.joda.time.DateTime;
import com.ning.billing.meter.timeline.samples.SampleOpcode;
import com.ning.billing.meter.timeline.times.TimelineCursor;
public abstract class TimeRangeSampleProcessor implements SampleProcessor {
private final DateTime startTime; // Inclusive
private final DateTime endTime; // Inclusive
protected TimeRangeSampleProcessor() {
this(null, null);
}
public TimeRangeSampleProcessor(final DateTime startTime, final DateTime endTime) {
this.startTime = startTime;
this.endTime = endTime;
}
/**
* Process sampleCount sequential samples with identical values. sampleCount will usually be 1,
* but may be larger than 1. Implementors may just loop processing identical values, but some
* implementations may optimize adding a bunch of repeated values
*
* @param timeCursor a TimeCursor instance, which supplies successive int UNIX times
* @param sampleCount the count of sequential, identical values
* @param opcode the opcode of the sample value, which may not be a REPEAT opcode
* @param value the value of this kind of sample over the sampleCount samples
*/
@Override
public void processSamples(final TimelineCursor timeCursor, final int sampleCount, final SampleOpcode opcode, final Object value) {
for (int i = 0; i < sampleCount; i++) {
// Check if the sample is in the right time range
final DateTime sampleTime = timeCursor.getNextTime();
if ((startTime == null || !sampleTime.isBefore(startTime)) && ((endTime == null || !sampleTime.isAfter(endTime)))) {
processOneSample(sampleTime, opcode, value);
}
}
}
public abstract void processOneSample(final DateTime time, final SampleOpcode opcode, final Object value);
public DateTime getStartTime() {
return startTime;
}
public DateTime getEndTime() {
return endTime;
}
}