BayernMessenger/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/UserEntityUpdater.kt

60 lines
2.5 KiB
Kotlin

/*
* Copyright 2019 New Vector Ltd
*
* 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 im.vector.matrix.android.internal.session.user
import com.zhuinden.monarchy.Monarchy
import im.vector.matrix.android.api.session.events.model.EventType
import im.vector.matrix.android.internal.database.RealmLiveEntityObserver
import im.vector.matrix.android.internal.database.model.EventEntity
import im.vector.matrix.android.internal.database.model.EventEntityFields
import im.vector.matrix.android.internal.database.query.types
import im.vector.matrix.android.internal.di.SessionDatabase
import im.vector.matrix.android.internal.task.TaskExecutor
import im.vector.matrix.android.internal.task.TaskThread
import im.vector.matrix.android.internal.task.configureWith
import io.realm.OrderedCollectionChangeSet
import io.realm.RealmConfiguration
import io.realm.RealmResults
import io.realm.Sort
import javax.inject.Inject
internal class UserEntityUpdater @Inject constructor(@SessionDatabase realmConfiguration: RealmConfiguration,
private val updateUserTask: UpdateUserTask,
private val taskExecutor: TaskExecutor)
: RealmLiveEntityObserver<EventEntity>(realmConfiguration) {
override val query = Monarchy.Query<EventEntity> {
EventEntity
.types(it, listOf(EventType.STATE_ROOM_MEMBER))
.sort(EventEntityFields.STATE_INDEX, Sort.DESCENDING)
.distinct(EventEntityFields.STATE_KEY)
}
override fun onChange(results: RealmResults<EventEntity>, changeSet: OrderedCollectionChangeSet) {
val roomMembersEvents = changeSet.insertions
.asSequence()
.mapNotNull { results[it]?.eventId }
.toList()
val taskParams = UpdateUserTask.Params(roomMembersEvents)
updateUserTask
.configureWith(taskParams)
.executeOn(TaskThread.IO)
.executeBy(taskExecutor)
}
}