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owenclave / app/src/main/java/io/nekohasekai/sagernet/database/ListConverter.kt
/******************************************************************************
* *
* Copyright (C) 2024 dyhkwong *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see . *
* *
******************************************************************************/
package io.nekohasekai.sagernet.database
import androidx.room.TypeConverter
class ListConverter {
companion object {
@TypeConverter
@JvmStatic
fun fromList(list: List): String {
return if (list.isEmpty()) {
""
} else {
list.joinToString(",")
}
}
@TypeConverter
@JvmStatic
fun toList(str: String): List {
return if (str.isBlank()) {
listOf()
} else if (str.startsWith("[") && str.endsWith("]")) {
// migrate from kapt to ksp
str.removePrefix("[")
.removeSuffix("]")
.replace(" ", "")
.replace("\n", "")
.replace("\"", "")
.split(",")
} else {
str.split(",")
}
}
}
}