From 1d99762c7965d351510cfb5e08eac25e48d96038 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Fri, 6 Jun 2025 08:02:52 +0300
Subject: Modernize project structure, update Maven config, move sources, add
 logging config, update README and .gitignore

---
 .../events/internal/VSMessageReceiveEvent.java     | 84 ++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 src/main/java/events/internal/VSMessageReceiveEvent.java

(limited to 'src/main/java/events/internal/VSMessageReceiveEvent.java')

diff --git a/src/main/java/events/internal/VSMessageReceiveEvent.java b/src/main/java/events/internal/VSMessageReceiveEvent.java
new file mode 100644
index 0000000..51ae926
--- /dev/null
+++ b/src/main/java/events/internal/VSMessageReceiveEvent.java
@@ -0,0 +1,84 @@
+package events.internal;
+
+import core.VSMessage;
+import protocols.VSAbstractProtocol;
+import serialize.VSNotSerializable;
+
+/**
+ * The class VSMessageReceiveEvent, this event is used if a process receives
+ * a message.
+ *
+ * @author Paul C. Buetow
+ */
+public class VSMessageReceiveEvent extends VSAbstractInternalEvent
+    implements VSNotSerializable {
+
+    /** The message. */
+    private VSMessage message;
+
+    /**
+     * Instantiates a new message receive event.
+     *
+     * @param message the message
+     */
+    public VSMessageReceiveEvent(VSMessage message) {
+        this.message = message;
+    }
+
+    /* (non-Javadoc)
+     * @see events.VSAbstractEvent#onInit()
+     */
+    public void onInit() {
+        setClassname(getClass().toString());
+    }
+
+    /* (non-Javadoc)
+     * @see events.VSAbstractEvent#onStart()
+     */
+    public void onStart() {
+        boolean onlyRelevantMessages = process.getPrefs().getBoolean("sim.messages.relevant");
+
+        //String eventName = message.getName();
+        String protocolClassname = message.getProtocolClassname();
+
+        if (onlyRelevantMessages && !isRelevantMessage())
+            return;
+
+        Object protocolObj = null;
+
+        if (process.objectExists(protocolClassname))
+            protocolObj = process.getObject(protocolClassname);
+
+        process.updateLamportTime(message.getLamportTime()+1);
+        process.updateVectorTime(message.getVectorTime());
+
+        StringBuffer buffer = new StringBuffer();
+        buffer.append(prefs.getString("lang.message.recv"));
+        buffer.append("; ");
+        buffer.append(message);;
+        log(buffer.toString());
+
+        if (protocolObj != null)
+            ((VSAbstractProtocol) protocolObj).onMessageRecvStart(message);
+    }
+
+    /**
+     * Checks if the message delivering is relevant.
+     *
+     * @return true, if relevant
+     */
+    public boolean isRelevantMessage() {
+        String protocolClassname = message.getProtocolClassname();
+        Object protocolObj = null;
+
+        if (process.objectExists(protocolClassname))
+            protocolObj = process.getObject(protocolClassname);
+        else
+            return false;
+
+        if (!((VSAbstractProtocol) protocolObj).isRelevantMessage(message))
+            return false;
+
+        return true;
+    }
+}
-- 
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