extension methods for j.i.Timer

stdlib/ktSrc/Timer.kt

@@ -0,0 +1,71 @@
+package std.concurrent
+
+import java.util.Timer
+import java.util.TimerTask
+import java.util.Date
+
+fun Timer.schedule(delay: Long, action: TimerTask.()->Unit) : TimerTask {
+    val task = createTask(action)
+    schedule(task, delay)
+    return task
+}
+
+fun Timer.schedule(time: Date, action: TimerTask.()->Unit) : TimerTask {
+    val task = createTask(action)
+    schedule(task, time)
+    return task
+}
+
+fun Timer.schedule(delay: Long, period: Long, action: TimerTask.()->Unit) : TimerTask {
+    val task = createTask(action)
+    schedule(task, delay, period)
+    return task
+}
+
+fun Timer.schedule(time: Date, period: Long, action: TimerTask.()->Unit) : TimerTask {
+    val task = createTask(action)
+    schedule(task, time, period)
+    return task
+}
+
+fun Timer.scheduleAtFixedRate(delay: Long, period: Long, action: TimerTask.()->Unit) : TimerTask {
+    val task = createTask(action)
+    scheduleAtFixedRate(task, delay, period)
+    return task
+}
+
+fun Timer.scheduleAtFixedRate(time: Date, period: Long, action: TimerTask.()->Unit) : TimerTask {
+    val task = createTask(action)
+    scheduleAtFixedRate(task, time, period)
+    return task
+}
+
+fun timer(name: String? = null, daemon: Boolean = false, initialDelay: Long = 0.lng, period: Long, action: TimerTask.()->Unit) : Timer {
+    val timer = if(name == null) Timer(daemon) else Timer(name, daemon)
+    timer.schedule(initialDelay, period, action)
+    return timer
+}
+
+fun timer(name: String? = null, daemon: Boolean = false, startAt: Date, period: Long, action: TimerTask.()->Unit) : Timer {
+    val timer = if(name == null) Timer(daemon) else Timer(name, daemon)
+    timer.schedule(startAt, period, action)
+    return timer
+}
+
+fun fixedRateTimer(name: String? = null, daemon: Boolean = false, initialDelay: Long = 0.lng, period: Long, action: TimerTask.()->Unit) : Timer {
+    val timer = if(name == null) Timer(daemon) else Timer(name, daemon)
+    timer.scheduleAtFixedRate(initialDelay, period, action)
+    return timer
+}
+
+fun fixedRateTimer(name: String? = null, daemon: Boolean = false, startAt: Date, period : Long, action: TimerTask.()->Unit) : Timer {
+    val timer = if(name == null) Timer(daemon) else Timer(name, daemon)
+    timer.scheduleAtFixedRate(startAt, period, action)
+    return timer
+}
+
+private fun createTask(action: TimerTask.()->Unit) : TimerTask = object: TimerTask() {
+    override fun run() {
+        action()
+    }
+}