added "getEnclosingScope" to ElementInstance

src/main/java/de/monticore/lang/embeddedmontiarc/embeddedmontiarc/_symboltable/ComponentInstanceSymbol.java

@@ -36,7 +36,7 @@ import java.util.Optional;
  *
  * @author Robert Heim
  */
-public class ComponentInstanceSymbol extends TaggingScopeSpanningSymbol {
+public class ComponentInstanceSymbol extends TaggingScopeSpanningSymbol implements ElementInstance {
 
     public static final EMAComponentInstanceKind KIND = EMAComponentInstanceKind.INSTANCE;
 

src/main/java/de/monticore/lang/embeddedmontiarc/embeddedmontiarc/_symboltable/ElementInstance.java

@@ -2,6 +2,7 @@ package de.monticore.lang.embeddedmontiarc.embeddedmontiarc._symboltable;
 
 import de.monticore.lang.montiarc.tagging._symboltable.TagKind;
 import de.monticore.lang.montiarc.tagging._symboltable.TagSymbol;
+import de.monticore.symboltable.Scope;
 
 import java.util.Collection;
 
@@ -13,4 +14,5 @@ public interface ElementInstance {
     public Collection<TagSymbol> getTags();
     public <T extends TagSymbol> Collection<T> getTags(final TagKind tagKind);
     public String getName();
+    public Scope getEnclosingScope() ;
 }

src/main/java/de/monticore/lang/embeddedmontiarc/embeddedmontiarc/_symboltable/PortSymbol.java

@@ -262,4 +262,48 @@ public class PortSymbol extends TaggingSymbol implements ElementInstance {
     public boolean isPartOfPortArray() {
         return getName().contains("[") && getName().contains("]");
     }
+
+    /**
+     * if model input is;
+     * component X {
+     *     port ...;
+     *
+     *     component A {
+     *         port in Integer p1,
+     *              out Integer p2;
+     *     }
+     *
+     *     component A a1, a2, a3;
+     *
+     *     connect a1.p2 -> a2.p1, a3.p1;
+     * }
+     *
+     * if I have the port symbol a1.p2 than this method returns the list of port symbols {a2.p1, a3.p1}
+     * @return
+     */
+    public List<PortSymbol> getTargetConnectedPorts(ExpandedComponentInstanceSymbol topComponent) {
+
+        //It does not works for components, when one of them is top component and another not.
+
+        List<PortSymbol> targetPorts = new ArrayList<>();
+
+        if(!topComponent.getConnectors().equals(null))
+        {
+            //If the port is Outgoing then return incoming ports of connected components
+            if(this.isOutgoing()) {
+                topComponent.getConnectors().stream()
+                        .filter(s -> s.getSourcePort().equals(this))
+                        .forEach(s -> targetPorts.add(s.getTargetPort()));
+            } else if(this.isIncoming())
+            {
+                //If the port is incoming then return outgoing ports of connected components
+                topComponent.getConnectors().stream()
+                        .filter(s -> s.getTargetPort().equals(this))
+                        .forEach(s -> targetPorts.add(s.getSourcePort()));
+            }
+        }
+        return targetPorts;
+
+        //TODO: Find the way to get connections from the top element
+    }
 }