--- /dev/null
+/**
+ * Sone - WebOfTrustAppeared.kt - Copyright © 2019 David ‘Bombe’ Roden
+ *
+ * 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 net.pterodactylus.sone.core.event
+
+/**
+ * Event that signals that the web of trust is reachable.
+ */
+class WebOfTrustAppeared
--- /dev/null
+/**
+ * Sone - WebOfTrustDisappeared.kt - Copyright © 2019 David ‘Bombe’ Roden
+ *
+ * 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 net.pterodactylus.sone.core.event
+
+/**
+ * Event that signals that the web of trust is not reachable.
+ */
+class WebOfTrustDisappeared
--- /dev/null
+/**
+ * Sone - WebOfTrustPinger.kt - Copyright © 2019 David ‘Bombe’ Roden
+ *
+ * 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 net.pterodactylus.sone.freenet.wot
+
+import com.google.common.eventbus.*
+import net.pterodactylus.sone.core.event.*
+import net.pterodactylus.sone.freenet.plugin.*
+import java.util.concurrent.atomic.*
+
+/**
+ * [Runnable] that is scheduled via an [Executor][java.util.concurrent.Executor],
+ * checks whether the web of trust plugin can be communicated with, sends
+ * events if its status changes and reschedules itself.
+ */
+class WebOfTrustPinger(private val eventBus: EventBus, private val webOfTrustReacher: () -> Unit, private val reschedule: () -> Unit) : Runnable {
+
+ private val lastState = AtomicBoolean(false)
+
+ override fun run() {
+ try {
+ webOfTrustReacher()
+ if (!lastState.get()) {
+ eventBus.post(WebOfTrustAppeared())
+ lastState.set(true)
+ }
+ } catch (e: PluginException) {
+ if (lastState.get()) {
+ eventBus.post(WebOfTrustDisappeared())
+ lastState.set(false)
+ }
+ }
+ reschedule()
+ }
+
+}
--- /dev/null
+/**
+ * Sone - WebOfTrustPinger.kt - Copyright © 2019 David ‘Bombe’ Roden
+ *
+ * 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 net.pterodactylus.sone.freenet.wot
+
+import com.google.common.eventbus.*
+import net.pterodactylus.sone.core.event.*
+import net.pterodactylus.sone.freenet.plugin.*
+import net.pterodactylus.sone.utils.*
+import org.hamcrest.MatcherAssert.*
+import org.hamcrest.Matchers.*
+import java.util.concurrent.atomic.*
+import kotlin.test.*
+
+/**
+ * Unit test for [WebOfTrustPinger].
+ */
+class WebOfTrustPingerTest {
+
+ private val eventBus = EventBus()
+ private val webOfTrustReachable = AtomicBoolean()
+ private val webOfTrustReacher: () -> Unit = { webOfTrustReachable.get().onFalse { throw PluginException() } }
+ private val rescheduled = AtomicBoolean()
+ private val reschedule: () -> Unit = { rescheduled.set(true) }
+ private val pinger = WebOfTrustPinger(eventBus, webOfTrustReacher, reschedule)
+
+ @Test
+ fun `pinger sends wot appeared event when run first and wot is reachable`() {
+ webOfTrustReachable.set(true)
+ val appearedReceived = AtomicBoolean()
+ eventBus.register(WebOfTrustAppearedCatcher { appearedReceived.set(true) })
+ pinger()
+ assertThat(appearedReceived.get(), equalTo(true))
+ }
+
+ @Test
+ fun `pinger reschedules when wot is reachable`() {
+ webOfTrustReachable.set(true)
+ pinger()
+ assertThat(rescheduled.get(), equalTo(true))
+ }
+
+ @Test
+ fun `pinger sends wot disappeared event when run first and wot is not reachable`() {
+ val appearedReceived = AtomicBoolean()
+ eventBus.register(WebOfTrustAppearedCatcher { appearedReceived.set(true) })
+ pinger()
+ assertThat(appearedReceived.get(), equalTo(false))
+ }
+
+ @Test
+ fun `pinger reschedules when wot is not reachable`() {
+ pinger()
+ assertThat(rescheduled.get(), equalTo(true))
+ }
+
+ @Test
+ fun `pinger sends wot disappeared event when run twice and wot is not reachable on second call`() {
+ val disappearedReceived = AtomicBoolean()
+ eventBus.register(WebOfTrustDisappearedCatcher { disappearedReceived.set(true) })
+ webOfTrustReachable.set(true)
+ pinger()
+ webOfTrustReachable.set(false)
+ pinger()
+ assertThat(disappearedReceived.get(), equalTo(true))
+ }
+
+ @Test
+ fun `pinger sends wot appeared event only once`() {
+ webOfTrustReachable.set(true)
+ val appearedReceived = AtomicBoolean()
+ eventBus.register(WebOfTrustAppearedCatcher { appearedReceived.set(true) })
+ pinger()
+ appearedReceived.set(false)
+ pinger()
+ assertThat(appearedReceived.get(), equalTo(false))
+ }
+
+ @Test
+ fun `pinger sends wot disappeared event only once`() {
+ val disappearedReceived = AtomicBoolean()
+ eventBus.register(WebOfTrustDisappearedCatcher { disappearedReceived.set(true) })
+ pinger()
+ disappearedReceived.set(false)
+ pinger()
+ assertThat(disappearedReceived.get(), equalTo(false))
+ }
+
+}
+
+private class WebOfTrustAppearedCatcher(private val received: () -> Unit) {
+ @Subscribe
+ fun webOfTrustAppeared(webOfTrustAppeared: WebOfTrustAppeared) {
+ received()
+ }
+}
+
+private class WebOfTrustDisappearedCatcher(private val received: () -> Unit) {
+ @Subscribe
+ fun webOfTrustDisappeared(webOfTrustDisappeared: WebOfTrustDisappeared) {
+ received()
+ }
+}
projects / Sone.git / commitdiff