com.ning.billing.meter.api.user.DefaultJsonSamplesOutputer 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.api.user;
import java.io.IOException;
import java.util.Collection;
import com.ning.billing.meter.timeline.TimelineEventHandler;
import com.ning.billing.meter.timeline.categories.CategoryRecordIdAndMetric;
import com.ning.billing.meter.timeline.chunks.TimelineChunk;
import com.ning.billing.meter.timeline.consumer.CSVConsumer;
import com.ning.billing.meter.timeline.metrics.SamplesForMetricAndSource;
import com.ning.billing.meter.timeline.persistent.TimelineDao;
import com.ning.billing.util.callcontext.TenantContext;
import com.fasterxml.jackson.core.JsonGenerator;
import com.google.common.base.Strings;
public class DefaultJsonSamplesOutputer extends JsonSamplesOutputer {
public DefaultJsonSamplesOutputer(final TimelineEventHandler timelineEventHandler, final TimelineDao timelineDao, final TenantContext context) {
super(timelineEventHandler, timelineDao, context);
}
@Override
protected void writeJsonForChunks(final JsonGenerator generator, final Collection chunksForSourceAndMetric) throws IOException {
for (final TimelineChunk chunk : chunksForSourceAndMetric) {
final String source = timelineDao.getSource(chunk.getSourceId(), context);
final CategoryRecordIdAndMetric categoryIdAndMetric = timelineDao.getCategoryIdAndMetric(chunk.getMetricId(), context);
final String eventCategory = timelineDao.getEventCategory(categoryIdAndMetric.getEventCategoryId(), context);
final String metric = categoryIdAndMetric.getMetric();
final String samples = CSVConsumer.getSamplesAsCSV(sampleCoder, chunk);
// Don't write out empty samples
if (!Strings.isNullOrEmpty(samples)) {
generator.writeObject(new SamplesForMetricAndSource(source, eventCategory, metric, samples));
}
}
}
}