io.slink.resources.resources.kt Maven / Gradle / Ivy

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package io.slink.resources

import io.slink.string.cleanWhitespace
import java.io.BufferedReader
import java.io.InputStream
import java.io.InputStreamReader
import java.nio.charset.Charset
import java.util.*

fun resourceAsInput(classpathLocation: String): InputStream {
    return Thread.currentThread()
            .contextClassLoader
            .getResourceAsStream(classpathLocation)!!
}

fun resourceAsString(classpathLocation: String, charset: Charset = Charsets.UTF_8): String {
    return resourceAsInput(classpathLocation)
            .use { BufferedReader(InputStreamReader(it, charset)).readText() }
}

fun resourceAsProps(classpathLocation: String, charset: Charset = Charsets.UTF_8): Properties {
    val props = Properties()
    props.load(InputStreamReader(resourceAsInput(classpathLocation), charset))
    return props
}

fun resourceAsStrings(classpathLocation: String, charset: Charset = Charsets.UTF_8): List {
    return resourceAsString(classpathLocation, charset)
            .split("\n")
            .map { it.cleanWhitespace() }
            .filter { it.isNotEmpty() }
}