LayoutProtoSerializer.kt
/*
* Copyright 2021 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.glance.appwidget.proto
import androidx.datastore.core.CorruptionException
import androidx.datastore.core.Serializer
import androidx.glance.appwidget.proto.LayoutProto.LayoutConfig
import com.google.protobuf.InvalidProtocolBufferException
import java.io.InputStream
import java.io.OutputStream
/**
* Serializes the proto for use with DataStore.
*/
public object LayoutProtoSerializer : Serializer<LayoutConfig> {
override val defaultValue: LayoutConfig = LayoutConfig.getDefaultInstance()
@Throws(CorruptionException::class)
override suspend fun readFrom(input: InputStream): LayoutConfig {
try {
return LayoutConfig.parseFrom(input)
} catch (e: InvalidProtocolBufferException) {
throw CorruptionException("Cannot read proto.", e)
}
}
override suspend fun writeTo(t: LayoutConfig, output: OutputStream) = t.writeTo(output)
}