1 files changed, 47 insertions, 0 deletions

diff --git a/app/src/main/java/org/pacien/tincapp/activities/status/nodes/NodeListLiveData.kt b/app/src/main/java/org/pacien/tincapp/activities/status/nodes/NodeListLiveData.kt
new file mode 100644
index 0000000..cdbdf0a
--- /dev/null
+++ b/app/src/main/java/org/pacien/tincapp/activities/status/nodes/NodeListLiveData.kt
@@ -0,0 +1,47 @@
+/*
+ * Tinc App, an Android binding and user interface for the tinc mesh VPN daemon
+ * Copyright (C) 2017-2018 Pacien TRAN-GIRARD
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+package org.pacien.tincapp.activities.status.nodes
+
+import android.arch.lifecycle.LiveData
+import org.pacien.tincapp.commands.Tinc
+import java.util.*
+import kotlin.concurrent.timer
+
+/**
+ * @author pacien
+ */
+class NodeListLiveData(private val netName: String) : LiveData<List<String>>() {
+  private val updateInterval = 2 * 1000L // in milliseconds
+  private val tincCtl = Tinc
+  private lateinit var updateTimer: Timer
+
+  override fun onActive() {
+    updateTimer = timer(period = updateInterval, action = { updateNodeList() })
+  }
+
+  override fun onInactive() {
+    updateTimer.apply { cancel() }.apply { purge() }
+  }
+
+  private fun updateNodeList() {
+    tincCtl.dumpNodes(netName)
+      .thenApply { list -> list.map { it.substringBefore(' ')} }
+      .thenAccept(this::postValue)
+  }
+}