/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.twitter.distributedlog.logsegment;
import com.twitter.distributedlog.util.Sizable;
import com.twitter.distributedlog.util.Utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TimeBasedRollingPolicy implements RollingPolicy {
final static Logger LOG = LoggerFactory.getLogger(TimeBasedRollingPolicy.class);
final long rollingIntervalMs;
public TimeBasedRollingPolicy(long rollingIntervalMs) {
this.rollingIntervalMs = rollingIntervalMs;
}
@Override
public boolean shouldRollover(Sizable sizable, long lastRolloverTimeMs) {
long elapsedMs = Utils.elapsedMSec(lastRolloverTimeMs);
boolean shouldSwitch = elapsedMs > rollingIntervalMs;
if (shouldSwitch) {
LOG.debug("Last Finalize Time: {} elapsed time (MSec): {}", lastRolloverTimeMs,
elapsedMs);
}
return shouldSwitch;
}
}