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ClientOptions.scala
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ClientOptions.scala
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/*
* Copyright (c) 2018 Gary Coady / Fs2 Grpc Developers
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fs2
package grpc
package client
import io.grpc.{StatusRuntimeException, CallOptions}
sealed abstract class ClientOptions private (
val prefetchN: Int,
val callOptionsFn: CallOptions => CallOptions,
val errorAdapter: PartialFunction[StatusRuntimeException, Exception]
) {
private def copy(
prefetchN: Int = this.prefetchN,
callOptionsFn: CallOptions => CallOptions = this.callOptionsFn,
errorAdapter: PartialFunction[StatusRuntimeException, Exception] = this.errorAdapter
): ClientOptions =
new ClientOptions(prefetchN, callOptionsFn, errorAdapter) {}
/** Prefetch up to @param n messages from a server. The client will try to keep the internal buffer filled according
* to the provided value.
*
* If the provided value is less than 1 it defaults to 1.
*/
def withPrefetchN(n: Int): ClientOptions =
copy(prefetchN = math.max(n, 1))
/** Adapt `io.grpc.StatusRuntimeException` into a different exception.
*/
def withErrorAdapter(ea: PartialFunction[StatusRuntimeException, Exception]): ClientOptions =
copy(errorAdapter = ea)
/** Function that is applied on `io.grpc.CallOptions.DEFAULT` for each new RPC call.
*/
def configureCallOptions(fn: CallOptions => CallOptions): ClientOptions =
copy(callOptionsFn = fn)
}
object ClientOptions {
val default: ClientOptions = new ClientOptions(
prefetchN = 1,
callOptionsFn = identity,
errorAdapter = PartialFunction.empty[StatusRuntimeException, Exception]
) {}
}