2 * Sone - WebOfTrustPinger.kt - Copyright © 2019 David ‘Bombe’ Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.sone.freenet.wot
20 import com.google.common.eventbus.*
21 import net.pterodactylus.sone.core.event.*
22 import net.pterodactylus.sone.freenet.plugin.*
23 import java.util.concurrent.atomic.*
26 * [Runnable] that is scheduled via an [Executor][java.util.concurrent.Executor],
27 * checks whether the web of trust plugin can be communicated with, sends
28 * events if its status changes and reschedules itself.
30 class WebOfTrustPinger(private val eventBus: EventBus, private val webOfTrustReacher: () -> Unit, private val reschedule: () -> Unit) : Runnable {
32 private val lastState = AtomicBoolean(false)
37 if (!lastState.get()) {
38 eventBus.post(WebOfTrustAppeared())
41 } catch (e: PluginException) {
42 if (lastState.get()) {
43 eventBus.post(WebOfTrustDisappeared())