/
Subscription.kt
78 lines (68 loc) · 3.57 KB
/
Subscription.kt
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/*******************************************************************************
* *
* Copyright (C) 2017 by Max Lv <max.c.lv@gmail.com> *
* Copyright (C) 2017 by Mygod Studio <contact-shadowsocks-android@mygod.be> *
* *
* 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 <http://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
package com.github.shadowsocks.subscription
import androidx.recyclerview.widget.SortedList
import com.github.shadowsocks.preference.DataStore
import com.github.shadowsocks.utils.asIterable
import java.io.Reader
import java.net.URL
class Subscription {
companion object {
const val SUBSCRIPTION = "subscription"
var instance: Subscription
get() {
val sub = Subscription()
val str = DataStore.publicStore.getString(SUBSCRIPTION)
if (str != null) sub.fromReader(str.reader())
return sub
}
set(value) = DataStore.publicStore.putString(SUBSCRIPTION, value.toString())
}
private abstract class BaseSorter<T> : SortedList.Callback<T>() {
override fun onInserted(position: Int, count: Int) {}
override fun areContentsTheSame(oldItem: T?, newItem: T?): Boolean = oldItem == newItem
override fun onMoved(fromPosition: Int, toPosition: Int) {}
override fun onChanged(position: Int, count: Int) {}
override fun onRemoved(position: Int, count: Int) {}
override fun areItemsTheSame(item1: T?, item2: T?): Boolean = item1 == item2
override fun compare(o1: T?, o2: T?): Int =
if (o1 == null) if (o2 == null) 0 else 1 else if (o2 == null) -1 else compareNonNull(o1, o2)
abstract fun compareNonNull(o1: T, o2: T): Int
}
private object URLSorter : BaseSorter<URL>() {
private val ordering = compareBy<URL>({ it.host }, { it.port }, { it.file }, { it.protocol })
override fun compareNonNull(o1: URL, o2: URL): Int = ordering.compare(o1, o2)
}
val urls = SortedList(URL::class.java, URLSorter)
fun fromReader(reader: Reader): Subscription {
urls.clear()
reader.useLines {
for (line in it) {
urls.add(URL(line))
}
}
return this
}
override fun toString(): String {
val result = StringBuilder()
result.append(urls.asIterable().joinToString("\n"))
return result.toString()
}
}