org.jetbrains.kotlin.gradle.utils.resourceUtils.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.gradle.utils
import org.gradle.api.Project
import org.jetbrains.kotlin.gradle.logging.kotlinDebug
import java.io.FileNotFoundException
import java.io.IOException
import java.net.HttpURLConnection
import java.net.SocketTimeoutException
import java.net.URL
import java.util.*
fun Any.loadPropertyFromResources(propFileName: String, property: String): String {
val props = Properties()
val inputStream = javaClass.classLoader!!.getResourceAsStream(propFileName)
?: throw FileNotFoundException("property file '$propFileName' not found in the classpath")
inputStream.use { props.load(it) }
return props[property] as String
}
@Throws(IOException::class)
fun Project.probeRemoteFileLength(url: String, probingTimeoutMs: Int = 0): Long? {
val connection = URL(url).openConnection()
if (connection !is HttpURLConnection) {
logger.kotlinDebug(::probeRemoteFileLength.name + "($url, $probingTimeoutMs): Failed to obtain content-length. Likely not an HTTP-based URL. URL connection class is ${connection::class.java}.")
return null
}
return try {
connection.requestMethod = "HEAD"
connection.connectTimeout = probingTimeoutMs
connection.readTimeout = probingTimeoutMs
connection.contentLengthLong.takeIf { it >= 0 }
} catch (e: SocketTimeoutException) {
if (probingTimeoutMs == 0)
throw e
else {
logger.kotlinDebug(::probeRemoteFileLength.name + "($url, $probingTimeoutMs): Failed to obtain content-length during the probing timeout.")
null
}
} finally {
connection.disconnect()
}
}