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74 changes: 63 additions & 11 deletions
74
app/src/main/java/org/ole/planet/myplanet/datamanager/ApiClient.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,33 +1,85 @@ | ||
| package org.ole.planet.myplanet.datamanager | ||
|
|
||
| import com.google.gson.GsonBuilder | ||
| import okhttp3.Interceptor | ||
| import okhttp3.OkHttpClient | ||
| import okhttp3.Response | ||
| import retrofit2.Retrofit | ||
| import retrofit2.converter.gson.GsonConverterFactory | ||
| import java.io.IOException | ||
| import java.lang.reflect.Modifier | ||
| import java.util.concurrent.TimeUnit | ||
| import kotlin.math.pow | ||
|
|
||
| object ApiClient { | ||
| private const val BASE_URL = "https://vi.media.mit.edu/" | ||
| private var retrofit: Retrofit? = null | ||
| @JvmStatic | ||
| val client: Retrofit? | ||
| get() { | ||
| val client = OkHttpClient.Builder().connectTimeout(1, TimeUnit.MINUTES) | ||
| .readTimeout(30, TimeUnit.SECONDS).writeTimeout(30, TimeUnit.SECONDS).build() | ||
| val client = OkHttpClient.Builder().connectTimeout(1, TimeUnit.MINUTES).readTimeout(30, TimeUnit.SECONDS) | ||
| .writeTimeout(30, TimeUnit.SECONDS).addInterceptor { chain -> | ||
| val request = chain.request().newBuilder() | ||
| .addHeader("Accept-Encoding", "gzip").build() | ||
| chain.proceed(request) | ||
| } | ||
| .retryOnConnectionFailure(true).addInterceptor(RetryInterceptor()).build() | ||
| if (retrofit == null) { | ||
| retrofit = Retrofit.Builder() | ||
| .baseUrl(BASE_URL) | ||
| .client(client) | ||
| .addConverterFactory( | ||
| GsonConverterFactory.create( | ||
| GsonBuilder() | ||
| .excludeFieldsWithModifiers(Modifier.FINAL, Modifier.TRANSIENT, Modifier.STATIC) | ||
| .serializeNulls() | ||
| .create() | ||
| .baseUrl(BASE_URL).client(client) | ||
| .addConverterFactory(GsonConverterFactory.create( | ||
| GsonBuilder() | ||
| .excludeFieldsWithModifiers(Modifier.FINAL, Modifier.TRANSIENT, Modifier.STATIC) | ||
| .serializeNulls() | ||
| .create() | ||
| ) | ||
| ).build() | ||
| } | ||
| return retrofit | ||
| } | ||
| } | ||
|
|
||
| class RetryInterceptor : Interceptor { | ||
| val maxRetryCount = 3 | ||
| val retryDelayMillis = 1000L | ||
|
|
||
| override fun intercept(chain: Interceptor.Chain): Response { | ||
| var attempt = 0 | ||
| var response: Response? = null | ||
| val request = chain.request() | ||
| val url = request.url().toString() | ||
|
|
||
| while (true) { | ||
| try { | ||
| response?.close() | ||
| response = chain.proceed(request) | ||
|
|
||
| when (response.code()) { | ||
| in 200..299 -> { | ||
| return response | ||
| } | ||
| 404 -> { | ||
| return response | ||
| } | ||
| 401, 403 -> { | ||
| response.close() | ||
| throw IOException("Authentication failed: ${response.code()}") | ||
| } | ||
| else -> { | ||
| response.close() | ||
| throw IOException("Response unsuccessful: ${response.code()}") | ||
| } | ||
| } | ||
| } catch (e: IOException) { | ||
| attempt++ | ||
|
|
||
| if (attempt >= maxRetryCount) { | ||
| throw IOException("Failed after $maxRetryCount attempts: $url", e) | ||
| } | ||
|
|
||
| val delayMillis = retryDelayMillis * 2.0.pow((attempt - 1).toDouble()).toLong() | ||
| Thread.sleep(delayMillis) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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