org.jetbrains.kotlin.build.serializationUtils.kt Maven / Gradle / Ivy

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the Kotlin compiler
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/*
 * Copyright 2010-2017 JetBrains s.r.o.
 *
 * 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.jetbrains.kotlin.build

import org.jetbrains.kotlin.cli.common.arguments.collectProperties
import kotlin.reflect.KClass
import kotlin.reflect.full.memberProperties
import kotlin.reflect.full.primaryConstructor

inline fun  serializeToPlainText(instance: T): String = serializeToPlainText(instance, T::class)

fun  serializeToPlainText(instance: T, klass: KClass): String {
    val lines = ArrayList()
    for (property in klass.memberProperties) {
        val value = property.get(instance)
        if (value != null) {
            lines.add("${property.name}=$value")
        }
    }
    return lines.joinToString("\n")
}

inline fun  deserializeFromPlainText(str: String): T? = deserializeFromPlainText(str, T::class)

fun  deserializeFromPlainText(str: String, klass: KClass): T? {
    val args = ArrayList()
    val properties = str
        .split("\n")
        .filter(String::isNotBlank)
        .associate { it.substringBefore("=") to it.substringAfter("=") }

    val primaryConstructor = klass.primaryConstructor
        ?: throw IllegalStateException("${klass.java} does not have primary constructor")
    for (param in primaryConstructor.parameters.sortedBy { it.index }) {
        val argumentString = properties[param.name]

        if (argumentString == null) {
            if (param.type.isMarkedNullable) {
                args.add(null)
                continue
            } else {
                return null
            }
        }

        val argument: Any? = when (param.type.classifier) {
            Int::class -> argumentString.toInt()
            Boolean::class -> argumentString.toBoolean()
            String::class -> argumentString
            else -> throw IllegalStateException("Unexpected property type: ${param.type}")
        }

        args.add(argument)
    }

    return primaryConstructor.call(*args.toTypedArray())
}

@Suppress("UNCHECKED_CAST")
fun  transformClassToPropertiesMap(classToTransform: T, excludedProperties: List = emptyList()) =
    collectProperties(classToTransform::class as KClass, false)
        .filter { property -> property.name !in excludedProperties }
        .associateBy(
            keySelector = { property -> property.name },
            valueTransform = { property ->
                property.get(classToTransform).let { value ->
                    if (value is Array<*>) {
                        (property.get(classToTransform) as Array<*>).joinToString(",")
                    } else {
                        property.get(classToTransform).toString()
                    }
                }
            })

fun List.joinToReadableString(): String = when {
    size > 5 -> take(5).joinToString() + " and ${size - 5} more"
    size > 1 -> dropLast(1).joinToString() + " and ${last()}"
    size == 1 -> single()
    else -> ""
}