/*
* Copyright 2013 Rackspace
*
* 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 com.rackspacecloud.blueflood.outputs.serializers;
import com.rackspacecloud.blueflood.exceptions.SerializationException;
import com.rackspacecloud.blueflood.outputs.formats.MetricData;
import com.rackspacecloud.blueflood.types.*;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
public interface BasicRollupsOutputSerializer<T> {
public T transformRollupData(MetricData metricData, Set<MetricStat> filterStats) throws SerializationException;
public static enum MetricStat {
AVERAGE("average") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BasicRollup)
return ((BasicRollup) rollup).getAverage();
else if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getAverage();
else
// counters, sets
throw new UnsupportedOperationException(
String.format("average not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
},
VARIANCE("variance") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BasicRollup)
return ((BasicRollup) rollup).getVariance();
else if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getVariance();
else
// counters, sets.
throw new UnsupportedOperationException(
String.format("variance not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return 0;
}
},
MIN("min") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BasicRollup)
return ((BasicRollup) rollup).getMinValue();
else if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getMinValue();
else
// counters, sets.
throw new UnsupportedOperationException(
String.format("min not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
},
MAX("max") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BasicRollup)
return ((BasicRollup) rollup).getMaxValue();
else if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getMaxValue();
else
// counters, sets.
throw new UnsupportedOperationException(
String.format("min not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
},
NUM_POINTS("numPoints") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BaseRollup)
return ((BaseRollup) rollup).getCount();
else if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getCount();
else if (rollup instanceof BluefloodCounterRollup)
return ((BluefloodCounterRollup) rollup).getSampleCount();
else if (rollup instanceof BluefloodSetRollup)
return ((BluefloodSetRollup) rollup).getCount();
else
// gauge.
throw new UnsupportedOperationException(
String.format("numPoints not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return 1;
}
},
LATEST("latest") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BluefloodGaugeRollup)
return ((BluefloodGaugeRollup) rollup).getLatestValue().getValue();
else
// every other type.
throw new UnsupportedOperationException(
String.format("latest value not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
},
RATE("rate") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getRate();
else if (rollup instanceof BluefloodCounterRollup)
return ((BluefloodCounterRollup) rollup).getRate();
else
// gauge, set, basic
throw new UnsupportedOperationException(
String.format("rate not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
},
SUM("sum") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if( rollup instanceof BasicRollup )
return ((BasicRollup) rollup).getSum();
else if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getSum();
else if (rollup instanceof BluefloodCounterRollup)
return ((BluefloodCounterRollup) rollup).getCount();
else
// every other type.
throw new UnsupportedOperationException(
String.format("sum not supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
},
PERCENTILE("percentiles") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
if (rollup instanceof BluefloodTimerRollup)
return ((BluefloodTimerRollup) rollup).getPercentiles();
else
// every other type.
throw new UnsupportedOperationException(
String.format("percentiles supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
},
TYPE("type") {
@Override
Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException {
// every other type.
throw new UnsupportedOperationException(
String.format("MetricStat values supported for this type: %s", rollup.getClass().getSimpleName()));
}
@Override
Object convertRawSampleToObject(Object rawSample) {
return rawSample;
}
}
;
private MetricStat(String s) {
this.stringRep = s;
}
private String stringRep;
private static final Map<String, MetricStat> stringToEnum = new HashMap<String, MetricStat>();
static {
for (MetricStat ms : values()) {
stringToEnum.put(ms.toString().toLowerCase(), ms);
}
}
public static MetricStat fromString(String s) {
return stringToEnum.get(s.toLowerCase());
}
public static Set<MetricStat> fromStringList(List<String> statList) {
Set<MetricStat> set = new HashSet<MetricStat>();
for (String stat : statList ) {
MetricStat metricStat = fromString(stat);
if (metricStat != null) {
set.add(fromString(stat));
}
}
return set;
}
@Override
public String toString() {
return this.stringRep;
}
abstract Object convertRollupToObject(Rollup rollup) throws UnsupportedOperationException;
abstract Object convertRawSampleToObject(Object rawSample);
}
}