com.github.jchanghong.http.okhttp.CacheResponse.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.Cache
import okhttp3.OkHttpClient
import okhttp3.Request
import java.io.File
import java.io.IOException

class CacheResponse(cacheDirectory: File) {
    private val client: OkHttpClient = OkHttpClient.Builder()
        .cache(
            Cache(
                directory = cacheDirectory,
                maxSize = 10L * 1024L * 1024L // 1 MiB
            )
        )
        .build()

    fun run() {
        val request = Request.Builder()
            .url("http://baidu.com")
            .build()

        val response1Body = client.newCall(request).execute().use {
            if (!it.isSuccessful) throw IOException("Unexpected code $it")

            println("Response 1 response:          $it")
            println("Response 1 cache response:    ${it.cacheResponse}")
            println("Response 1 network response:  ${it.networkResponse}")
            return@use it.body!!.string()
        }

        val response2Body = client.newCall(request).execute().use {
            if (!it.isSuccessful) throw IOException("Unexpected code $it")

            println("Response 2 response:          $it")
            println("Response 2 cache response:    ${it.cacheResponse}")
            println("Response 2 network response:  ${it.networkResponse}")
            return@use it.body!!.string()
        }

        println("Response 2 equals Response 1? " + (response1Body == response2Body))
    }
}

fun main() {
    CacheResponse(File("CacheResponse.tmp")).run()
}