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feature: Create Retrofit CallAdapter to convert the Response to ApiRe…
…sult in the interface
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39 changes: 39 additions & 0 deletions
39
app/src/main/java/com/nagpal/shivam/vtucslab/retrofit/ApiResultCall.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package com.nagpal.shivam.vtucslab.retrofit | ||
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| import com.nagpal.shivam.vtucslab.retrofit.ApiResult.ApiException | ||
| import okhttp3.Request | ||
| import okio.Timeout | ||
| import retrofit2.Call | ||
| import retrofit2.Callback | ||
| import retrofit2.Response | ||
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| class ApiResultCall<T : Any>(private val proxy: Call<T>) : Call<ApiResult<T>> { | ||
| override fun enqueue(callback: Callback<ApiResult<T>>) { | ||
| proxy.enqueue(object : Callback<T> { | ||
| override fun onResponse(call: Call<T>, response: Response<T>) { | ||
| val apiResult = handleApiResult { response } | ||
| callback.onResponse(this@ApiResultCall, Response.success(apiResult)) | ||
| } | ||
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| override fun onFailure(call: Call<T>, t: Throwable) { | ||
| val apiResult = ApiException<T>(t) | ||
| callback.onResponse(this@ApiResultCall, Response.success(apiResult)) | ||
| } | ||
| }) | ||
| } | ||
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| override fun execute(): Response<ApiResult<T>> = throw NotImplementedError() | ||
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| override fun clone(): Call<ApiResult<T>> = ApiResultCall(proxy.clone()) | ||
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| override fun isExecuted(): Boolean = proxy.isExecuted | ||
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| override fun cancel() = proxy.cancel() | ||
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| override fun isCanceled(): Boolean = proxy.isCanceled | ||
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| override fun request(): Request = proxy.request() | ||
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| override fun timeout(): Timeout = proxy.timeout() | ||
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| } |
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15
app/src/main/java/com/nagpal/shivam/vtucslab/retrofit/ApiResultCallAdapter.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| package com.nagpal.shivam.vtucslab.retrofit | ||
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| import retrofit2.Call | ||
| import retrofit2.CallAdapter | ||
| import java.lang.reflect.Type | ||
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| class ApiResultCallAdapter(private val resultType: Type) : | ||
| CallAdapter<Type, Call<ApiResult<Type>>> { | ||
| override fun responseType(): Type = resultType | ||
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| override fun adapt(call: Call<Type>): Call<ApiResult<Type>> { | ||
| return ApiResultCall(call) | ||
| } | ||
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| } |
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31
app/src/main/java/com/nagpal/shivam/vtucslab/retrofit/ApiResultCallAdapterFactory.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| package com.nagpal.shivam.vtucslab.retrofit | ||
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| import retrofit2.Call | ||
| import retrofit2.CallAdapter | ||
| import retrofit2.Retrofit | ||
| import java.lang.reflect.ParameterizedType | ||
| import java.lang.reflect.Type | ||
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| class ApiResultCallAdapterFactory private constructor() : CallAdapter.Factory() { | ||
| override fun get( | ||
| returnType: Type, | ||
| annotations: Array<out Annotation>, | ||
| retrofit: Retrofit | ||
| ): CallAdapter<*, *>? { | ||
| if (getRawType(returnType) != Call::class.java) { | ||
| return null | ||
| } | ||
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| val callType = getParameterUpperBound(0, returnType as ParameterizedType) | ||
| if (getRawType(callType) != ApiResult::class.java) { | ||
| return null | ||
| } | ||
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| val resultType = getParameterUpperBound(0, callType as ParameterizedType) | ||
| return ApiResultCallAdapter(resultType) | ||
| } | ||
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| companion object { | ||
| fun create(): ApiResultCallAdapterFactory = ApiResultCallAdapterFactory() | ||
| } | ||
| } |
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