/*
* Copyright 2014-2016 CyberVision, Inc.
*
* 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.kaaproject.kaa.client.logging.strategies;
import org.kaaproject.kaa.client.logging.DefaultLogUploadStrategy;
import org.kaaproject.kaa.client.logging.LogStorageStatus;
import org.kaaproject.kaa.client.logging.LogUploadStrategy;
import org.kaaproject.kaa.client.logging.LogUploadStrategyDecision;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.TimeUnit;
/**
* Reference implementation for {@link LogUploadStrategy}. Start log upload when there is
* countThreshold records in storage or records are stored for more then timeLimit TimeUnit units.
*/
public class RecordCountWithTimeLimitLogUploadStrategy extends DefaultLogUploadStrategy {
private static final Logger LOG = LoggerFactory.getLogger(
RecordCountWithTimeLimitLogUploadStrategy.class);
protected long lastUploadTime = System.currentTimeMillis();
public RecordCountWithTimeLimitLogUploadStrategy(int countThreshold, long timeLimit,
TimeUnit timeUnit) {
setUploadCheckPeriod((int) timeUnit.toSeconds(timeLimit));
setCountThreshold(countThreshold);
}
@Override
protected LogUploadStrategyDecision checkUploadNeeded(LogStorageStatus status) {
LogUploadStrategyDecision decision = LogUploadStrategyDecision.NOOP;
long currentTime = System.currentTimeMillis();
long currentRecordCount = status.getRecordCount();
if (currentRecordCount >= countThreshold) {
LOG.info("Need to upload logs - current count: {}, threshold: {}",
currentRecordCount, countThreshold);
decision = LogUploadStrategyDecision.UPLOAD;
lastUploadTime = currentTime;
} else if (((currentTime - lastUploadTime) / 1000) >= uploadCheckPeriod) {
LOG.info("Need to upload logs - current count: {}, lastUploadedTime: {}, timeLimit: {}",
currentRecordCount, lastUploadTime, uploadCheckPeriod);
decision = LogUploadStrategyDecision.UPLOAD;
lastUploadTime = currentTime;
}
return decision;
}
}