com.github.jchanghong.http.okhttp.PostStreaming.kt Maven / Gradle / Ivy

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/*
 * Copyright (C) 2014 Square, Inc.
 *
 * 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 com.github.jchanghong.http.okhttp

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody
import okio.BufferedSink
import java.io.IOException

class PostStreaming {
	private val client = OkHttpClient()

	fun run() {
		val requestBody = object : RequestBody() {
			override fun contentType() = MEDIA_TYPE_MARKDOWN

			override fun writeTo(sink: BufferedSink) {
				sink.writeUtf8("Numbers\n")
				sink.writeUtf8("-------\n")
				for (i in 2..997) {
					sink.writeUtf8(String.format(" * $i = ${factor(i)}\n"))
				}
			}

			private fun factor(n: Int): String {
				for (i in 2 until n) {
					val x = n / i
					if (x * i == n) return "${factor(x)} × $i"
				}
				return n.toString()
			}
		}

		val request = Request.Builder()
			.url("https://api.github.com/markdown/raw")
			.post(requestBody)
			.build()

		client.newCall(request).execute().use { response ->
			if (!response.isSuccessful) throw IOException("Unexpected code $response")

			println(response.body!!.string())
		}
	}

	companion object {
		val MEDIA_TYPE_MARKDOWN = "text/x-markdown; charset=utf-8".toMediaType()
	}
}

fun main() {
	PostStreaming().run()
}