Create knock task

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/membership/joining/KnockTask.kt

+/*
+ * Copyright 2020 The Matrix.org Foundation C.I.C.
+ *
+ * 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 org.matrix.android.sdk.internal.session.room.membership.joining
+
+import org.matrix.android.sdk.internal.network.GlobalErrorReceiver
+import org.matrix.android.sdk.internal.network.executeRequest
+import org.matrix.android.sdk.internal.session.room.RoomAPI
+import org.matrix.android.sdk.internal.task.Task
+import javax.inject.Inject
+
+internal interface KnockTask : Task<KnockTask.Params, Unit> {
+    data class Params(
+            val roomId: String,
+            val reason: String?
+    )
+}
+
+internal class DefaultKnockTask @Inject constructor(
+        private val roomAPI: RoomAPI,
+        private val globalErrorReceiver: GlobalErrorReceiver
+) : KnockTask {
+
+    override suspend fun execute(params: KnockTask.Params) {
+        val body = KnockBody(params.reason)
+        return executeRequest(
+                globalErrorReceiver,
+                canRetry = true,
+                maxRetriesCount = 3
+        ) {
+            roomAPI.knock(params.roomId, body)
+        }
+    }
+}