Refactor EntityUtil to speed up stereotypes management.

Change-Id: I038cc504b05db18529dc26693e1ae6ff62dff568

plugins/contracts/org.polarsys.chess.contracts.profile/src/org/polarsys/chess/contracts/profile/chesscontract/util/StereotypeUtil.java

+package org.polarsys.chess.contracts.profile.chesscontract.util;
+
+import org.eclipse.uml2.uml.Element;
+import org.eclipse.uml2.uml.Profile;
+import org.eclipse.uml2.uml.Stereotype;
+
+public class StereotypeUtil {
+
+	private static Profile chessProfile;
+	private static Profile chessContractProfile;
+	private static Profile sysMLProfile;
+	private static Profile marteProfile;
+	private static int modelHashCode;
+	
+	public static Stereotype getCHESSStereotype(String name, Element element){
+
+		if (modelHashCode == 0) {
+			modelHashCode = element.getModel().hashCode();
+		}
+		
+		//String projectName = element.getModel().eResource().getURI().segment(1);
+
+		String[] names = name.split("::");
+				
+		if(!names[0].equals("CHESS")){
+			return null;
+		}
+		
+		if (chessProfile == null || (modelHashCode != element.getModel().hashCode())) {
+			modelHashCode = element.getModel().hashCode();
+			chessProfile = element.getModel().getAppliedProfile(names[0]);			
+		}
+
+		return getStereotype(names,chessProfile);
+	}
+
+	public static Stereotype getCHESSContractStereotype(String name, Element element){
+
+		if (modelHashCode == 0) {
+			modelHashCode = element.getModel().hashCode();
+		}
+		
+		//String projectName = element.getModel().eResource().getURI().segment(1);
+
+		String[] names = name.split("::");
+		
+		if(!names[0].equals("CHESSContract")){
+			return null;
+		}
+		
+		if (chessContractProfile == null || (modelHashCode != element.getModel().hashCode())) {
+			modelHashCode = element.getModel().hashCode();
+			chessContractProfile = element.getModel().getAppliedProfile(names[0]);
+		}
+
+		return getStereotype(names,chessContractProfile);
+	}
+		
+	public static Stereotype getMarteStereotype(String name, Element element){
+
+		if (modelHashCode == 0) {
+			modelHashCode = element.getModel().hashCode();
+		}
+		
+		//String projectName = element.getModel().eResource().getURI().segment(1);
+
+		String[] names = name.split("::");
+		
+		if(!names[0].equals("MARTE")){
+			return null;
+		}
+		
+		if (marteProfile == null || (modelHashCode != element.getModel().hashCode())) {
+			modelHashCode = element.getModel().hashCode();
+			marteProfile = element.getModel().getAppliedProfile(names[0]);
+		}
+
+		return getStereotype(names,marteProfile);
+	}
+		
+	public static Stereotype getSysMLStereotype(String name, Element element){
+
+		if (modelHashCode == 0) {
+			modelHashCode = element.getModel().hashCode();
+		}
+		
+		//String projectName = element.getModel().eResource().getURI().segment(1);
+
+		String[] names = name.split("::");
+		
+		if(!names[0].equals("SysML")){
+			return null;
+		}
+		
+		if (sysMLProfile == null || (modelHashCode != element.getModel().hashCode())) {
+			modelHashCode = element.getModel().hashCode();
+			sysMLProfile = element.getModel().getAppliedProfile(names[0]);
+		}
+
+		return getStereotype(names,sysMLProfile);
+	}
+	
+	private static Stereotype getStereotype(String[] names, Profile profile){
+		org.eclipse.uml2.uml.Package currPackage = profile;
+		
+		if(names.length>2){
+			for(int i = 1; i<names.length-1;i++){
+				currPackage=currPackage.getNestedPackage(names[i]);
+			}
+		}
+		
+		
+		final String extrName = names[names.length-1];
+		System.out.println("extrName: "+extrName);
+		System.out.println("currPackage: "+currPackage);
+		final Stereotype stereotype = currPackage.getOwnedStereotype(extrName);
+		if (stereotype == null) {
+			return null;
+		}
+		return stereotype;
+	}
+	
+}