From 4c728b0ba906799afd30f0a337b540cf167a0cfd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Grodzi=C5=84ska?= <mag.grodzinska@gmail.com>
Date: Mon, 23 Dec 2019 19:50:46 +0100
Subject: Make timer inherit from module, move to modules package

---
 .../edu/mimuw/cloudatlas/agent/modules/Module.java | 31 ++++++++++++++++++++
 .../agent/modules/TimerScheduledTask.java          | 11 ++++++++
 .../cloudatlas/agent/modules/TimerScheduler.java   | 33 ++++++++++++++++++++++
 3 files changed, 75 insertions(+)
 create mode 100644 src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Module.java
 create mode 100644 src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduledTask.java
 create mode 100644 src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduler.java

(limited to 'src/main/java/pl/edu/mimuw/cloudatlas/agent/modules')

diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Module.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Module.java
new file mode 100644
index 0000000..dd6a5f8
--- /dev/null
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Module.java
@@ -0,0 +1,31 @@
+package pl.edu.mimuw.cloudatlas.agent.modules;
+
+import pl.edu.mimuw.cloudatlas.agent.Executor;
+import pl.edu.mimuw.cloudatlas.agent.message.AgentMessage;
+
+/*
+ * A Module is a (potentially stateful) event handler.
+ */
+public abstract class Module {
+    private AgentMessage.AgentModule moduleType;
+    private Executor executor;
+
+    public Module(AgentMessage.AgentModule moduleType) {
+        this.moduleType = moduleType;
+    }
+
+    public abstract void handle(AgentMessage event) throws InterruptedException ;
+
+    public void setExecutor(Executor executor) {
+        this.executor = executor;
+    }
+
+    public void sendMessage(AgentMessage event) throws InterruptedException {
+        this.executor.passMessage(event);
+    }
+
+    @Override
+    public String toString() {
+        return moduleType.toString();
+    }
+}
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduledTask.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduledTask.java
new file mode 100644
index 0000000..db9dd26
--- /dev/null
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduledTask.java
@@ -0,0 +1,11 @@
+package pl.edu.mimuw.cloudatlas.agent.modules;
+
+import java.util.TimerTask;
+
+public class TimerScheduledTask extends TimerTask {
+
+    @Override
+    public void run() {
+
+    }
+}
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduler.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduler.java
new file mode 100644
index 0000000..b7ce435
--- /dev/null
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/TimerScheduler.java
@@ -0,0 +1,33 @@
+package pl.edu.mimuw.cloudatlas.agent.modules;
+
+import pl.edu.mimuw.cloudatlas.agent.message.AgentMessage;
+import pl.edu.mimuw.cloudatlas.agent.message.TimerSchedulerMessage;
+
+import java.util.Timer;
+import java.util.TimerTask;
+
+/**
+ * Initializes a timer within a constructor during its attachment to the executor
+ * Runs in a thread separate from executor - maybe refactor so that it's attached to executor's thread
+ *
+ * Handle used to attach tasks to schedule
+ * Tasks declared as inherited from TimerTask
+ *
+ * TODO: add request id and custom time
+ */
+public class TimerScheduler extends Module {
+    private Timer timer;
+
+    public TimerScheduler(AgentMessage.AgentModule moduleType) {
+        super(moduleType);
+        this.timer = new Timer();
+        System.out.println("TimerScheduler instance initialized");
+    }
+
+    @Override
+    public void handle(AgentMessage event) throws InterruptedException {
+        TimerSchedulerMessage timerEvent = (TimerSchedulerMessage) event;
+        this.timer.schedule(timerEvent.getTask(), timerEvent.getDelay());
+        System.out.println("Task with delay " + timerEvent.getDelay() + " scheduled");
+    }
+}
-- 
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