/*
 * ============LICENSE_START=======================================================
 * dcaegen2-collectors-veshv
 * ================================================================================
 * Copyright (C) 2018 NOKIA
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */
package org.onap.dcae.collectors.veshv.utils

import java.time.Instant

/**
 * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
 * @since December 2018
 */
object TimeUtils {
    fun epochMicroToInstant(epochMicroseconds: Long): Instant {
        val seconds = epochMicroseconds / MICROSECONDS_IN_SECOND
        val nanos = (epochMicroseconds - seconds * MICROSECONDS_IN_SECOND) * NANOSECONDS_IN_MICROSECOND
        return Instant.ofEpochSecond(seconds, nanos)
    }

    private const val MICROSECONDS_IN_SECOND = 1_000_000L
    private const val NANOSECONDS_IN_MICROSECOND = 1_000L
}