Read Sequence Diagram from XMI using EMF

Question

I searched a lot about reading UML diagrams from XMI using EMF Java Eclipse. I only found solutions to read class diagram but my task is to read Sequence diagram from XMI. Can anyone please help me out?

Answer 1

After a hectic efforts finally I found a working solution, You only need to put path of error-free UML diagram in the main class, Provided code will read all nodes and sub-nodes respectively. You can customize the code as per your requirements. This code can be used both for class diagram as well as sequence diagram.

Sequence Diagram Model Reader (Main Class)

public static void main(String[] args) {
     MododelLoader umlModel= new ModelLoader();
    // sequence diagram XMI
     String umlFilePath = "SequenceDiagramUML\\sequenceDiagram.uml"; 

        String uri = null;
        try {
            uri = umlModel.getFileURI(umlFilePath);
        } catch (Exception e) {
            e.printStackTrace();
        }
        Object objModel = umlModel.loadModel(uri);
        Model sourceModel;
        EList<PackageableElement> sourcePackagedElements = null;
        if (objModel instanceof Model) {
            sourceModel = (Model) objModel;
            sourcePackagedElements = sourceModel.getPackagedElements();
        } else if (objModel instanceof Package) {
            Package sourcePackage = (Package) objModel;
            sourcePackagedElements = sourcePackage.getPackagedElements();
        }
        for (PackageableElement element : sourcePackagedElements){
            //for nested package
            if(element.eClass() == UMLPackage.Literals.PACKAGE){
                org.eclipse.uml2.uml.Package nestedPackage = 
             (org.eclipse.uml2.uml.Package) element;
                EList<PackageableElement> nestedPackagedElements = 
           nestedPackage.getPackagedElements();
                for (PackageableElement nestedElement : nestedPackagedElements){
                    printModelDetails(nestedElement);
                }
            }
            else
                printModelDetails(element);
        }

Model Details Extractor (Helper Class)

 private static void printModelDetails(PackageableElement element){

    int counterEnd=1;
    String classfierName="Test";
    boolean isClass=false;
    if(element.eClass()==UMLPackage.Literals.COLLABORATION){
        Collaboration collab=(Collaboration)element;
        System.out.println("Collaboration Name: "+collab.getName());
        EList<Behavior> behaviours = collab.getOwnedBehaviors();    

        System.out.println("Behavious: ");
        if(!behaviours.isEmpty()){
            for (Behavior obj: behaviours)
            {
                Interaction interaction=(Interaction)obj;
                EList<Lifeline> lifelines=interaction.getLifelines();
                EList<InteractionFragment> fragments=interaction.getFragments();
                EList<Message> messages=interaction.getMessages();

                if(!lifelines.isEmpty()) {

                    for(Lifeline lifln:lifelines) {

                EList<EAnnotation> inter=lifln.getEAnnotations();  
                  }
                }
               if(!fragments.isEmpty()) {

                    for(InteractionFragment frag:fragments) {

                    EList<Element> elements=    frag.getOwnedElements();                    
                    }
                }
               if(!messages.isEmpty()) {

                    for(Message msg:messages) {
                        EList<ConnectorEnd> 
   connectorEnds=msg.getConnector().getEnds();
                        String conEnd1=connectorEnds.get(0).getRole().getName();
                        String conEnd2=connectorEnds.get(1).getRole().getName();
                        System.out.println("Messages: "+msg.getName());

           System.out.println("Message_Receive_event:"+msg.getMessageSort());  

                        System.out.println("ConEnd1:  "+conEnd1);
                        System.out.println("ConEnd2:  "+conEnd2);
                    }
                }
                System.out.println("Interaction Name: "+obj.getName());
                EList<Connector> connectors = obj.getOwnedConnectors(); 
                System.out.println("Connectors: ");
                if(!connectors.isEmpty()){
                    for (Connector behav: connectors)
                    {           

                        EList<ConnectorEnd> property = behav.getEnds(); 
                        if(!property.isEmpty()) {

                            System.out.println("Connector Ends "+counterEnd);
                            for(ConnectorEnd ends:property) {


                     System.out.println("EndName:"+ends.getRole().getName());
                            }
                            counterEnd++;
                        }
                    }       
                }

ModelLoader Class (Helper Class)

public class ModelLoader {
     private final ResourceSet RESOURCE_SET;
      public ModelLoader() {
      RESOURCE_SET = new ResourceSetImpl();
    }

/**
 * A method that converts input path to uri and return uri.
 * 
 * @param path
 * @return uri
 * @throws Exception
 */
public String getFileURI(String path) throws Exception {
    File f = new File(path);
    String uri = f.toURI().toString();
    return uri; 
}
/**
 * A method that loads UML/Ecore model from input URI.
 * 
 * @param uri:String
 * @return model:Object
 */
public Object loadModel(String uri){
    URI modelUri = URI.createURI(uri);
    registerPackages(RESOURCE_SET);
    registerResourceFactories();
    String relPath = null;
    try {
        relPath = new File(".").getCanonicalPath();
    } catch (IOException e1) {
        e1.printStackTrace();
    }
    URIConverter.URI_MAP.put(URI.createURI("platform:/plugin/org.eclipse.uml2.uml/"), 
             URI.createURI("jar:file:"+
              relPath+"/EMF_Lib/org.eclipse.uml2.uml_3.1.2.v201010261927.jar! /"));
    Resource resource = null;
    try {   
        resource = RESOURCE_SET.getResource(modelUri, true);
    }
    catch (Exception e) {
        e.printStackTrace();
    }

    Object result;

    Model _model = (Model) EcoreUtil.getObjectByType(resource.getContents(), 
    UMLPackage.Literals.MODEL);
    result = _model;
    // org.eclipse.uml2.uml.Package _model =
    // 
      (org.eclipse.uml2.uml.Package)EcoreUtil.getObjectByType(resource.getContents(),
    // UMLPackage.Literals.PACKAGE);
    if (_model == null) {
        result = resource.getContents().get(0);         
    }
    return result;
    }   

public void loadResources(){
    registerPackages(RESOURCE_SET);
    registerResourceFactories();
    String relPath = null;
    try {
        relPath = new File(".").getCanonicalPath();
    } catch (IOException e1) {
        e1.printStackTrace();
    }
    URIConverter.URI_MAP.put(URI.createURI("platform:/plugin/org.eclipse.uml2.uml/"), 


         URI.createURI("jar:file:"+
       relPath+"/EMF_Lib/org.eclipse.uml2.uml_3.1.2.v201010261927.jar!/"));
    }

     private void registerResourceFactories() 
  {
    Map extensionFactoryMap = 
      Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap();         
    extensionFactoryMap.put(UMLResource.FILE_EXTENSION, 
      UMLResource.Factory.INSTANCE);         
    extensionFactoryMap.put(Ecore2XMLResource.FILE_EXTENSION, 
       Ecore2XMLResource.Factory.INSTANCE);      
    extensionFactoryMap.put(UML22UMLResource.FILE_EXTENSION, 
  UML22UMLResource.Factory.INSTANCE);                
    extensionFactoryMap.put(UMLResource.FILE_EXTENSION, 
  UML22UMLResource.Factory.INSTANCE);
    extensionFactoryMap.put(UMLResource.FILE_EXTENSION, 
     UML22UMLResource.Factory.INSTANCE);        
    extensionFactoryMap.put(Resource.Factory.Registry.DEFAULT_EXTENSION,new 
   XMIResourceFactoryImpl());
    }

    private void registerPackages(ResourceSet resourceSet) 
     {
    Map packageRegistry = resourceSet.getPackageRegistry();
    packageRegistry.put(EcorePackage.eNS_URI, EcorePackage.eINSTANCE);
    packageRegistry.put(Ecore2XMLPackage.eNS_URI, Ecore2XMLPackage.eINSTANCE);
    packageRegistry.put(UMLPackage.eNS_URI, UMLPackage.eINSTANCE);
    packageRegistry .put(UML212UMLResource.UML_METAMODEL_NS_URI, 
  UMLPackage.eINSTANCE);
    //for RSA

   packageRegistry.put("http://www.eclipse.org/uml2/2.0.0/UML",UMLPackage.eINSTANCE);
    //for Papyrus

   packageRegistry.put("http://www.eclipse.org/uml2/5.0.0/UML",UMLPackage.eINSTANCE);
    }
     }