tri.util.KotlinUtils.kt Maven / Gradle / Ivy

Go to download
/*-
 * #%L
 * coda-data
 * --
 * Copyright (C) 2020 - 2021 Elisha Peterson
 * --
 * 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.
 * #L%
 */
package tri.util

import java.time.Duration
import java.time.LocalDateTime

/** Utility to lazy-load using a monitored load function. */
fun  lazyMonitor(message: String, initializer: () -> T) = lazy {
    val t0 = LocalDateTime.now()
    println("Loading $message...")
    val res = initializer()
    val duration = Duration.between(t0, LocalDateTime.now())
    println("Loaded $message in ${duration.toSeconds()} seconds")
    res
}

/** Looks up resource by path relative to given class. */
inline fun  resource(path: String) = X::class.java.getResource(path)