Example usage for org.eclipse.jdt.core ITypeHierarchy getSubclasses

Introduction

In this page you can find the example usage for org.eclipse.jdt.core ITypeHierarchy getSubclasses.

Prototype

IType[] getSubclasses(IType type);

Source Link

Document

Returns the direct resolved subclasses of the given class, in no particular order, limited to the classes in this type hierarchy's graph.

Usage

From source file:org.eclipse.jst.jsf.taglibprocessing.attributevalues.JavaClassType.java

License:Open Source License

private void addValidSubClasses(IType res, Set vals, Set checkedTypes) {

    try {/*from w ww . j  a  va2  s  . c  o m*/
        //check to see if we have already checked the hiearchy
        if (checkedTypes.contains(res))
            return;

        //should we add itself?
        if (isInnerOrAnonymousClass(res))
            return;
        if (!isAbstractClass(res))
            vals.add(res); //since it is a set, dupes will not be added

        ITypeHierarchy hierarchy = res.newTypeHierarchy(getJavaProject(), null);
        IType[] subclasses = hierarchy.getSubclasses(res);
        checkedTypes.add(res);
        for (int i = 0; i < subclasses.length; i++) {
            addValidSubClasses(subclasses[i], vals, checkedTypes);
        }
    } catch (JavaModelException e) {
        //ignore
    }
}

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From source file:org.jboss.tools.ws.jaxrs.core.internal.metamodel.builder.ResourceChangedProcessor.java

License:Open Source License

private List<JaxrsElementDelta> preprocessApplicationChangesOnWebxmlAdditionOrChange(IResource resource,
        JaxrsMetamodel metamodel, IProgressMonitor progressMonitor) throws CoreException {
    final IType applicationType = JdtUtils.resolveType(APPLICATION.qualifiedName, metamodel.getJavaProject(),
            progressMonitor);//from  w w w .j  a  v  a2 s  .  co m
    // occurs when the project has the jax-rs nature (the builder is called), but no jaxrs library is in the classpath
    if (applicationType == null) {
        return Collections.emptyList();
    }
    final List<JaxrsElementDelta> results = new ArrayList<JaxrsElementDelta>();
    final ITypeHierarchy applicationTypeHierarchy = JdtUtils.resolveTypeHierarchy(applicationType,
            applicationType.getJavaProject(), false, progressMonitor);
    final IType[] applicationSubclasses = applicationTypeHierarchy.getSubclasses(applicationType);
    // add the standard Application type in last position in the hierarchy
    final IType[] applicationClasses = CollectionUtils.append(applicationSubclasses, applicationType,
            new IType[applicationSubclasses.length + 1]);
    // existing web.xml-based JAX-RS applications in the metamodel 
    final List<JaxrsWebxmlApplication> existingApplications = metamodel.getWebxmlApplications();
    // web.xml-based JAX-RS applications declared in the web deployment descriptor 
    final List<JaxrsWebxmlApplication> declaredApplications = new ArrayList<JaxrsWebxmlApplication>();
    for (IType applicationClass : applicationClasses) {
        final String applicationClassName = applicationClass.getFullyQualifiedName();
        final String applicationPath = WtpUtils.getApplicationPath(resource, applicationClassName);
        if (applicationPath != null) {
            declaredApplications
                    .add(factory.createApplication(applicationClassName, applicationPath, resource, metamodel));
        }
    }
    // now compare the 'existing' vs 'declared' lists to update the metamodel (adding/updating/removing items) 
    final Collection<JaxrsWebxmlApplication> addedApplications = CollectionUtils
            .difference(declaredApplications, existingApplications);
    for (JaxrsWebxmlApplication application : addedApplications) {
        results.add(new JaxrsElementDelta(application, ADDED));
    }
    final Collection<JaxrsWebxmlApplication> changedApplications = CollectionUtils
            .intersection(declaredApplications, existingApplications);
    for (JaxrsWebxmlApplication application : changedApplications) {
        results.add(new JaxrsElementDelta(application, CHANGED, F_FINE_GRAINED));
    }
    final Collection<JaxrsWebxmlApplication> removedApplications = CollectionUtils
            .difference(existingApplications, declaredApplications);
    for (JaxrsWebxmlApplication application : removedApplications) {
        results.add(new JaxrsElementDelta(application, REMOVED));
    }

    /*final IJaxrsApplication application = metamodel.getApplication();
    if (resolvedApplicationPath != null) {
       if (application == null || application.getElementKind() == EnumElementKind.APPLICATION_JAVA) {
    metamodel.add(webxmlApplication);
    results.add(new JaxrsElementDelta(webxmlApplication, ADDED));
       } else if (application != null && application.getElementKind() == EnumElementKind.APPLICATION_WEBXML) {
    int flags = webxmlApplication.update(webxmlApplication);
    results.add(new JaxrsElementDelta(webxmlApplication, CHANGED, flags));
       }
    } else if(application != null && application.getElementKind() == EnumElementKind.APPLICATION_WEBXML){
       final JaxrsWebxmlApplication webxmlApplication = (JaxrsWebxmlApplication) application;
       metamodel.remove(webxmlApplication);
       results.add(new JaxrsElementDelta(webxmlApplication, REMOVED));
    }*/
    // otherwise, do nothing (application path not declared in web.xml, or not valid but can't be discovered)
    return results;
}

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