tech.aroma.data.sql.serializers.DevicesSerializer.kt Maven / Gradle / Ivy

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/*
 * Copyright 2017 RedRoma, Inc.
 *
 * 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 tech.aroma.data.sql.serializers

import org.slf4j.LoggerFactory
import org.springframework.jdbc.core.JdbcOperations
import tech.aroma.data.assertions.RequestAssertions.validMobileDevice
import tech.aroma.data.sql.DatabaseSerializer
import tech.aroma.data.sql.serializers.Columns.UserPreferences
import tech.aroma.thrift.channels.MobileDevice
import tech.sirwellington.alchemy.arguments.Arguments.checkThat
import tech.sirwellington.alchemy.arguments.assertions.*
import tech.sirwellington.alchemy.thrift.ThriftObjects
import java.sql.ResultSet


/**
 *
 * @author SirWellington
 */
internal class DevicesSerializer : DatabaseSerializer>
{
    private companion object
    {
        @JvmStatic val LOG = LoggerFactory.getLogger(this::class.java)!!
    }

    override fun save(devices: MutableSet, statement: String, database: JdbcOperations)
    {
        checkThat(statement).isA(nonEmptyString())
        devices.forEach { checkThat(it).isA(validMobileDevice()) }

    }

    override fun deserialize(row: ResultSet): MutableSet
    {
        val devicesArray = row.getArray(UserPreferences.SERIALIZED_DEVICES) ?: return mutableSetOf()

        val devices = devicesArray.array as? Array ?: return mutableSetOf()

        return devices.map(this::deviceFromJson).filterNotNull().toMutableSet()
    }

    private fun deviceFromJson(json: String): MobileDevice?
    {
        return try
        {
            ThriftObjects.fromJson(MobileDevice(), json)
        }
        catch (ex: Exception)
        {
            LOG.error("Failed to parse Mobile Device from JSON | $json", ex)
            return null
        }
    }


}