| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * 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 androidx.room.solver.binderprovider |
| |
| import androidx.room.compiler.processing.XType |
| import androidx.room.parser.ParsedQuery |
| import androidx.room.processor.Context |
| import androidx.room.solver.ObservableQueryResultBinderProvider |
| import androidx.room.solver.QueryResultBinderProvider |
| import androidx.room.solver.RxType |
| import androidx.room.solver.TypeAdapterExtras |
| import androidx.room.solver.query.result.QueryResultBinder |
| import androidx.room.solver.query.result.RxCallableQueryResultBinder |
| |
| class RxCallableQueryResultBinderProvider private constructor( |
| val context: Context, |
| private val rxType: RxType |
| ) : QueryResultBinderProvider { |
| override fun provide( |
| declared: XType, |
| query: ParsedQuery, |
| extras: TypeAdapterExtras |
| ): QueryResultBinder { |
| // Add info that the type mirror is hardcoded into a Kotlin Nullable for Callable |
| extras.putData( |
| ObservableQueryResultBinderProvider.OriginalTypeArg::class, |
| ObservableQueryResultBinderProvider.OriginalTypeArg(declared) |
| ) |
| val typeArg = extractTypeArg(declared) |
| val adapter = context.typeAdapterStore.findQueryResultAdapter(typeArg, query, extras) |
| return RxCallableQueryResultBinder(rxType, typeArg, adapter) |
| } |
| |
| override fun matches(declared: XType): Boolean = |
| declared.typeArguments.size == 1 && matchesRxType(declared) |
| |
| private fun matchesRxType(declared: XType): Boolean { |
| return declared.rawType.asTypeName() == rxType.className |
| } |
| |
| private fun extractTypeArg(declared: XType): XType { |
| // Maybe is always expected to be built with a Callable containing a nullable type argument |
| return if (rxType.canBeNull || rxType.isSingle()) { |
| declared.typeArguments.first().makeNullable() |
| } else { |
| declared.typeArguments.first() |
| } |
| } |
| |
| companion object { |
| fun getAll(context: Context) = listOf( |
| RxType.RX2_SINGLE, |
| RxType.RX2_MAYBE, |
| RxType.RX3_SINGLE, |
| RxType.RX3_MAYBE |
| ).map { |
| RxCallableQueryResultBinderProvider(context, it).requireArtifact( |
| context = context, |
| requiredType = it.version.rxRoomClassName, |
| missingArtifactErrorMsg = it.version.missingArtifactMessage |
| ) |
| } |
| } |
| } |