org.janusgraph.util.encoding.ConversionHelper.java Source code

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Here is the source code for org.janusgraph.util.encoding.ConversionHelper.java

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// Copyright 2017 JanusGraph Authors
//
// 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.janusgraph.util.encoding;

import com.google.common.base.Preconditions;

import java.time.Duration;
import java.time.temporal.TemporalUnit;
import java.util.concurrent.TimeUnit;

/**
 * @author Matthias Broecheler (me@matthiasb.com)
 */
public class ConversionHelper {

    public static final int getTTLSeconds(Duration duration) {
        Preconditions.checkArgument(duration != null && !duration.isZero(), "Must provide non-zero TTL");
        long ttlSeconds = Math.max(1, duration.getSeconds());
        assert ttlSeconds > 0;
        Preconditions.checkArgument(ttlSeconds <= Integer.MAX_VALUE, "tll value is too large [%s] - value overflow",
                duration);
        return (int) ttlSeconds;
    }

    public static final int getTTLSeconds(long time, TemporalUnit unit) {
        return getTTLSeconds(Duration.of(time, unit));
    }

}