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models/Language_concepts/Event_Sharing_in_Composite_Events.mp

+/*┬────────────────────────────────────────────────────────┐
+│*│ ┌─[ Title and Authors ]──────────────────────────────┐ │
+│*│ │ Event Sharing in Composite Events   		 		 │ │
+│*│ │  Created by Kristin Giammarco and Mike Collins	 │ │
+│*│ │  2021-11-11					 					 │ │
+│*│ └────────────────────────────────────────────────────┘ │
+│*│                                                        │
+│*│ ┌─[ Purpose ]────────────────────────────────────────┐ │
+│*│ │ To illustrate how to share events within composite │ │
+│*│ │ events.                   			 			 │ │
+│*│ └────────────────────────────────────────────────────┘ │
+│*│							   							   │
+│*│ ┌─[ Description ]────────────────────────────────────┐ │
+│*│ │ This model shows the use of COORDINATE statements  │ │
+│*│ │ to perform event sharing inside of composite 	 	 │ │ 
+│*│ │ events.  This operation uses nested COORDINATE  	 │ │ 
+│*│ │ statements to navigate the event hierarchy. 	 	 │ │
+│*│ └────────────────────────────────────────────────────┘ │
+│*│                                                        │
+│*│ ┌─[ References ]─────────────────────────────────────┐ │
+│*│ │ "Example 3: Data Flow" from Auguston, M. "Monterey │ │
+│*│ │ Phoenix System and Software Architecture and       │ │
+│*│ │ Workflow Modeling Language Manual" (Version 4).    │ │
+│*│ │ 2020. Available online:                            │ │
+│*│ │ https://wiki.nps.edu/display/MP/Documentation 	 │ │
+│*│ │ 							 						 │ │
+│*│ │ Example02_DataFlow_EventSharing.  Available online:│ │
+│*│ │ https://gitlab.nps.edu/monterey-phoenix/mp-model-collection/preloaded-examples/-/tree/master/models
+│*│ └────────────────────────────────────────────────────┘ │
+│*│                                                        │
+│*│ ┌─[ Search Terms ]───────────────────────────────────┐ │
+│*│ │ behavior, data flow; event sharing                 │ │
+│*│ └────────────────────────────────────────────────────┘ │
+│*│                                                        │
+│*│ ┌─[ Instructions ]───────────────────────────────────┐ │
+│*│ │ Run for Scopes 1 and up.                           │ │
+│*│ ├─[ Run Statistics ]─────────────────────────────────┤ │
+│*│ │ Scope 1: 3 traces in less than 1 sec.              │ │
+│*│ │ Scope 2: 28 traces in less than 1 sec.             │ │
+│*│ │ Scope 3: 165 traces in less than 1 sec.            │ │
+│*│ └────────────────────────────────────────────────────┘ │
+└*┴───────────────────────────────────────────────────────*/
+
+SCHEMA Event_Sharing_in_Composite_Events
+
+ROOT System: { Writer, File, Reader };
+ 
+	Writer: (* ( working | writing ) *);
+ 
+	/* writing events should precede reading */
+	File:   (+ writing +) (* reading *);
+
+
+/*	Share writing events within Writer and File 
+	composite events*/
+COORDINATE 	$a: Writer FROM System,
+			$b: File  FROM System 
+	DO	COORDINATE 	$c: writing FROM $a,
+               		$d: writing FROM $b 
+    	DO SHARE $c $d; OD;
+ 	OD;
+
+ 
+	Reader: (* ( reading | working ) *);
+
+ 
+/*	Share reading events within Reader and File 
+	composite events*/
+COORDINATE 	$a: Reader FROM System,
+			$b: File  FROM System 
+	DO	COORDINATE 	$c: reading FROM $a,
+               		$d: reading FROM $b 
+    	DO SHARE $c $d; OD;
+ 	OD;