org.apache.flink.runtime.state.ttl.TtlUtils Maven / Gradle / Ivy
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* 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 org.apache.flink.runtime.state.ttl;
import javax.annotation.Nullable;
/** Common functions related to State TTL. */
public class TtlUtils {
static boolean expired(@Nullable TtlValue ttlValue, long ttl, TtlTimeProvider timeProvider) {
return expired(ttlValue, ttl, timeProvider.currentTimestamp());
}
static boolean expired(@Nullable TtlValue ttlValue, long ttl, long currentTimestamp) {
return ttlValue != null && expired(ttlValue.getLastAccessTimestamp(), ttl, currentTimestamp);
}
static boolean expired(long ts, long ttl, TtlTimeProvider timeProvider) {
return expired(ts, ttl, timeProvider.currentTimestamp());
}
public static boolean expired(long ts, long ttl, long currentTimestamp) {
return getExpirationTimestamp(ts, ttl) <= currentTimestamp;
}
private static long getExpirationTimestamp(long ts, long ttl) {
long ttlWithoutOverflow = ts > 0 ? Math.min(Long.MAX_VALUE - ts, ttl) : ttl;
return ts + ttlWithoutOverflow;
}
static TtlValue wrapWithTs(V value, long ts) {
return new TtlValue<>(value, ts);
}
}