Example usage for org.eclipse.jdt.core IJavaElement PACKAGE_FRAGMENT

Introduction

In this page you can find the example usage for org.eclipse.jdt.core IJavaElement PACKAGE_FRAGMENT_ROOT.

Prototype

int PACKAGE_FRAGMENT_ROOT

To view the source code for org.eclipse.jdt.core IJavaElement PACKAGE_FRAGMENT_ROOT.

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Document

Constant representing a package fragment root.

Usage

From source file:com.motorola.studio.android.model.BuildingBlockModel.java

License:Apache License

/**
 * Extract source folder from selection.
 * @param selection//w  w  w. ja  va2s.com
 * @return
 * @throws CoreException
 */
private static IPackageFragmentRoot extractPackageFragmentRoot(IStructuredSelection selection)
        throws CoreException {
    IPackageFragmentRoot pack = null;
    Object selectionElement = selection.getFirstElement();

    if (selectionElement instanceof IPackageFragmentRoot) {
        pack = (IPackageFragmentRoot) selectionElement;
    } else if (selectionElement instanceof IJavaElement) {
        pack = (IPackageFragmentRoot) ((IJavaElement) selectionElement)
                .getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
        if (pack == null) {
            IJavaProject element = ((IJavaElement) selectionElement).getJavaProject();

            for (IPackageFragmentRoot root : element.getPackageFragmentRoots()) {
                if (root.getResource() != null) {
                    boolean isSrc = (root.getElementType()
                            & IPackageFragmentRoot.K_SOURCE) == IPackageFragmentRoot.K_SOURCE;
                    boolean isGen = root.getElementName().equals(IAndroidConstants.GEN_SRC_FOLDER)
                            && (root.getParent() instanceof IJavaProject);
                    if (isSrc && !isGen) {
                        pack = root;
                        break;
                    }
                }
            }
        }
    } else if (selectionElement instanceof IResource) {
        IJavaProject element = JavaCore.create(((IResource) selectionElement).getProject());

        if (element.isOpen()) {
            for (IPackageFragmentRoot root : element.getPackageFragmentRoots()) {
                if (root.getResource() != null) {
                    boolean isSrc = (root.getElementType()
                            & IPackageFragmentRoot.K_SOURCE) == IPackageFragmentRoot.K_SOURCE;
                    boolean isGen = root.getElementName().equals(IAndroidConstants.GEN_SRC_FOLDER)
                            && (root.getParent() instanceof IJavaProject);
                    if (isSrc && !isGen) {
                        pack = root;
                        break;
                    }
                }
            }
        }
    } else {
        IJavaProject[] allProjects = JavaCore.create(ResourcesPlugin.getWorkspace().getRoot())
                .getJavaProjects();
        if ((allProjects != null) && (allProjects.length > 0)) {
            for (IJavaProject project : allProjects) {
                if (project.getResource().getProject().hasNature(IAndroidConstants.ANDROID_NATURE)) {
                    IPackageFragmentRoot[] roots = project.getPackageFragmentRoots();

                    if ((roots != null) && (roots.length > 0)) {
                        boolean found = false;

                        for (IPackageFragmentRoot root : roots) {
                            boolean isSrc = (root.getElementType()
                                    & IPackageFragmentRoot.K_SOURCE) == IPackageFragmentRoot.K_SOURCE;
                            boolean isGen = root.getElementName().equals(IAndroidConstants.GEN_SRC_FOLDER)
                                    && (root.getParent() instanceof IJavaProject);
                            if (isSrc && !isGen) {
                                found = true;
                                pack = root;
                                break;
                            }
                        }

                        if (found) {
                            break;
                        }
                    }
                }
            }
        }
    }

    if (pack != null) {
        if (!pack.getJavaProject().getProject().hasNature(IAndroidConstants.ANDROID_NATURE)) {
            pack = extractPackageFragmentRoot(new TreeSelection());
        }
    }
    return pack;
}

From source file:com.nitorcreations.robotframework.eclipseide.editors.ResourceManager.java

License:Apache License

@Override
public Map<IFile, IPath> getJavaFiles(String fullyQualifiedName) {
    IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
    Map<IFile, IPath> files = new LinkedHashMap<IFile, IPath>();
    for (IProject project : root.getProjects()) {
        try {//from ww w. j a va2 s. c om
            IJavaProject javaProject = JavaCore.create(project);
            IType type = javaProject.findType(fullyQualifiedName);
            if (type != null) {
                IFile file = root.getFile(type.getPath());
                if (file.exists()) {
                    IJavaElement ancestor = type.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
                    IPath path = ancestor != null ? ancestor.getPath() : type.getPath();
                    files.put(file, path);
                }
            }
        } catch (JavaModelException e) {
            // non-Java or unopened projects are simple skipped
        }
    }
    return files;
}

From source file:com.redhat.ceylon.eclipse.code.explorer.JavaElementImageProvider.java

License:Open Source License

/**
 * Returns an image descriptor for a java element. This is the base image, no overlays.
 * @param element the element//from   ww  w. j  av a 2s. c om
 * @param renderFlags the image flags
 * @return returns the image descriptor
 */
public ImageDescriptor getBaseImageDescriptor(IJavaElement element, int renderFlags) {

    try {
        switch (element.getElementType()) {
        case IJavaElement.INITIALIZER:
            return JavaPluginImages.DESC_MISC_PRIVATE; // 23479
        case IJavaElement.METHOD: {
            IMethod method = (IMethod) element;
            IType declType = method.getDeclaringType();
            int flags = method.getFlags();
            if (declType.isEnum() && isDefaultFlag(flags) && method.isConstructor())
                return JavaPluginImages.DESC_MISC_PRIVATE;
            return getMethodImageDescriptor(JavaModelUtil.isInterfaceOrAnnotation(declType), flags);
        }
        case IJavaElement.FIELD: {
            IMember member = (IMember) element;
            IType declType = member.getDeclaringType();
            return getFieldImageDescriptor(JavaModelUtil.isInterfaceOrAnnotation(declType), member.getFlags());
        }
        case IJavaElement.LOCAL_VARIABLE:
            return JavaPluginImages.DESC_OBJS_LOCAL_VARIABLE;

        case IJavaElement.PACKAGE_DECLARATION:
            return JavaPluginImages.DESC_OBJS_PACKDECL;

        case IJavaElement.IMPORT_DECLARATION:
            return JavaPluginImages.DESC_OBJS_IMPDECL;

        case IJavaElement.IMPORT_CONTAINER:
            return JavaPluginImages.DESC_OBJS_IMPCONT;

        case IJavaElement.TYPE: {
            IType type = (IType) element;

            IType declType = type.getDeclaringType();
            boolean isInner = declType != null;
            boolean isInInterfaceOrAnnotation = isInner && JavaModelUtil.isInterfaceOrAnnotation(declType);
            return getTypeImageDescriptor(isInner, isInInterfaceOrAnnotation, type.getFlags(),
                    useLightIcons(renderFlags));
        }

        case IJavaElement.PACKAGE_FRAGMENT_ROOT: {
            IPackageFragmentRoot root = (IPackageFragmentRoot) element;
            IPath attach = root.getSourceAttachmentPath();
            if (root.getKind() == IPackageFragmentRoot.K_BINARY) {
                if (root.isArchive()) {
                    if (root.isExternal()) {
                        if (attach == null) {
                            return JavaPluginImages.DESC_OBJS_EXTJAR;
                        } else {
                            return JavaPluginImages.DESC_OBJS_EXTJAR_WSRC;
                        }
                    } else {
                        if (attach == null) {
                            return JavaPluginImages.DESC_OBJS_JAR;
                        } else {
                            return JavaPluginImages.DESC_OBJS_JAR_WSRC;
                        }
                    }
                } else {
                    if (attach == null) {
                        return JavaPluginImages.DESC_OBJS_CLASSFOLDER;
                    } else {
                        return JavaPluginImages.DESC_OBJS_CLASSFOLDER_WSRC;
                    }
                }
            } else {
                return JavaPluginImages.DESC_OBJS_PACKFRAG_ROOT;
            }
        }

        case IJavaElement.PACKAGE_FRAGMENT:
            return getPackageFragmentIcon(element);

        case IJavaElement.COMPILATION_UNIT:
            return JavaPluginImages.DESC_OBJS_CUNIT;

        case IJavaElement.CLASS_FILE:
            /* this is too expensive for large packages
            try {
               IClassFile cfile= (IClassFile)element;
               if (cfile.isClass())
             return JavaPluginImages.IMG_OBJS_CFILECLASS;
               return JavaPluginImages.IMG_OBJS_CFILEINT;
            } catch(JavaModelException e) {
               // fall through;
            }*/
            return JavaPluginImages.DESC_OBJS_CFILE;

        case IJavaElement.JAVA_PROJECT:
            IJavaProject jp = (IJavaProject) element;
            if (jp.getProject().isOpen()) {
                IProject project = jp.getProject();
                IWorkbenchAdapter adapter = (IWorkbenchAdapter) project.getAdapter(IWorkbenchAdapter.class);
                if (adapter != null) {
                    ImageDescriptor result = adapter.getImageDescriptor(project);
                    if (result != null)
                        return result;
                }
                return DESC_OBJ_PROJECT;
            }
            return DESC_OBJ_PROJECT_CLOSED;

        case IJavaElement.JAVA_MODEL:
            return JavaPluginImages.DESC_OBJS_JAVA_MODEL;

        case IJavaElement.TYPE_PARAMETER:
            return JavaPluginImages.DESC_OBJS_TYPEVARIABLE;

        case IJavaElement.ANNOTATION:
            return JavaPluginImages.DESC_OBJS_ANNOTATION;

        default:
            // ignore. Must be a new, yet unknown Java element
            // give an advanced IWorkbenchAdapter the chance
            IWorkbenchAdapter wbAdapter = (IWorkbenchAdapter) element.getAdapter(IWorkbenchAdapter.class);
            if (wbAdapter != null && !(wbAdapter instanceof JavaWorkbenchAdapter)) { // avoid recursion
                ImageDescriptor imageDescriptor = wbAdapter.getImageDescriptor(element);
                if (imageDescriptor != null) {
                    return imageDescriptor;
                }
            }
            return JavaPluginImages.DESC_OBJS_GHOST;
        }

    } catch (JavaModelException e) {
        if (e.isDoesNotExist())
            return JavaPluginImages.DESC_OBJS_UNKNOWN;
        JavaPlugin.log(e);
        return JavaPluginImages.DESC_OBJS_GHOST;
    }
}

From source file:com.redhat.ceylon.eclipse.code.explorer.PackageExplorerContentProvider.java

License:Open Source License

/**
 * Processes a delta recursively. When more than two children are affected the
 * tree is fully refreshed starting at this node.
 *
 * @param delta the delta to process/*from  ww  w .  j a  va 2  s . com*/
 * @param runnables the resulting view changes as runnables (type {@link Runnable})
 * @return true is returned if the conclusion is to refresh a parent of an element. In that case no siblings need
 * to be processed
 * @throws JavaModelException thrown when the access to an element failed
 */
private boolean processDelta(IJavaElementDelta delta, Collection<Runnable> runnables)
        throws JavaModelException {

    int kind = delta.getKind();
    int flags = delta.getFlags();
    IJavaElement element = delta.getElement();
    int elementType = element.getElementType();

    if (elementType != IJavaElement.JAVA_MODEL && elementType != IJavaElement.JAVA_PROJECT) {
        IJavaProject proj = element.getJavaProject();
        if (proj == null || !proj.getProject().isOpen()) // TODO: Not needed if parent already did the 'open' check!
            return false;
    }

    if (elementType == IJavaElement.PACKAGE_FRAGMENT) {
        if ((flags & (IJavaElementDelta.F_CONTENT
                | IJavaElementDelta.F_CHILDREN)) == IJavaElementDelta.F_CONTENT) {
            // TODO: This should never be true for folders (F_CONTENT is only for files)
            if (!fIsFlatLayout) {
                Object parent = getHierarchicalPackageParent((IPackageFragment) element);
                if (!(parent instanceof IPackageFragmentRoot)) {
                    postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
                    return true;
                }
            }
            // content change, without children info (for example resource added/removed to class folder package)
            postRefresh(internalGetParent(element), PARENT, element, runnables);
            return true;
        }

        if (!fIsFlatLayout) {
            if (kind == IJavaElementDelta.REMOVED) {
                final Object parent = getHierarchicalPackageParent((IPackageFragment) element);
                if (parent instanceof IPackageFragmentRoot) {
                    postRemove(element, runnables);
                    return false;
                } else {
                    postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
                    return true;
                }
            } else if (kind == IJavaElementDelta.ADDED) {
                final Object parent = getHierarchicalPackageParent((IPackageFragment) element);
                if (parent instanceof IPackageFragmentRoot) {
                    if (fFoldPackages) {
                        postRefresh(parent, PARENT, element, runnables);
                        return true;
                    } else {
                        postAdd(parent, element, runnables);
                        return false;
                    }
                } else {
                    postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
                    return true;
                }
            }
            handleAffectedChildren(delta, element, runnables);
            return false;
        }
    }

    if (elementType == IJavaElement.COMPILATION_UNIT) {
        ICompilationUnit cu = (ICompilationUnit) element;
        if (!JavaModelUtil.isPrimary(cu)) {
            return false;
        }

        if (!getProvideMembers() && cu.isWorkingCopy() && kind == IJavaElementDelta.CHANGED) {
            return false;
        }

        if (kind == IJavaElementDelta.CHANGED && !isStructuralCUChange(flags)) {
            return false; // test moved ahead
        }

        if (!isOnClassPath(cu)) { // TODO: isOnClassPath expensive! Should be put after all cheap tests
            return false;
        }

    }

    if (elementType == IJavaElement.JAVA_PROJECT) {
        // handle open and closing of a project
        if ((flags & (IJavaElementDelta.F_CLOSED | IJavaElementDelta.F_OPENED)) != 0) {
            postRefresh(element, ORIGINAL, element, runnables);
            return false;
        }
        // if the class path has changed we refresh the entire project
        if ((flags & IJavaElementDelta.F_RESOLVED_CLASSPATH_CHANGED) != 0) {
            postRefresh(element, ORIGINAL, element, runnables);
            return false;
        }
        // if added it could be that the corresponding IProject is already shown. Remove it first.
        // bug 184296
        if (kind == IJavaElementDelta.ADDED) {
            postRemove(element.getResource(), runnables);
            postAdd(element.getParent(), element, runnables);
            return false;
        }
    }

    if (kind == IJavaElementDelta.REMOVED) {
        Object parent = internalGetParent(element);
        if (element instanceof IPackageFragment) {
            // refresh package fragment root to allow filtering empty (parent) packages: bug 72923
            if (fViewer.testFindItem(parent) != null)
                postRefresh(parent, PARENT, element, runnables);
            return true;

        } else if (element instanceof IPackageFragmentRoot) {
            // libs and class folders can show up twice (in library container and as resource at original location)
            IResource resource = element.getResource();
            if (resource != null && !resource.exists())
                postRemove(resource, runnables);
        }

        postRemove(element, runnables);
        if (parent instanceof IPackageFragment)
            postUpdateIcon((IPackageFragment) parent, runnables);
        // we are filtering out empty subpackages, so we
        // a package becomes empty we remove it from the viewer.
        if (isPackageFragmentEmpty(element.getParent())) {
            if (fViewer.testFindItem(parent) != null)
                postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
            return true;
        }
        return false;
    }

    if (kind == IJavaElementDelta.ADDED) {
        Object parent = internalGetParent(element);
        // we are filtering out empty subpackages, so we
        // have to handle additions to them specially.
        if (parent instanceof IPackageFragment) {
            Object grandparent = internalGetParent(parent);
            // 1GE8SI6: ITPJUI:WIN98 - Rename is not shown in Packages View
            // avoid posting a refresh to an invisible parent
            if (parent.equals(fInput)) {
                postRefresh(parent, PARENT, element, runnables);
            } else {
                // refresh from grandparent if parent isn't visible yet
                if (fViewer.testFindItem(parent) == null)
                    postRefresh(grandparent, GRANT_PARENT, element, runnables);
                else {
                    postRefresh(parent, PARENT, element, runnables);
                }
            }
            return true;
        } else {
            if (element instanceof IPackageFragmentRoot
                    && ((IPackageFragmentRoot) element).getKind() != IPackageFragmentRoot.K_SOURCE) {
                // libs and class folders can show up twice (in library container or under project, and as resource at original location)
                IResource resource = element.getResource();
                if (resource != null) {
                    Object resourceParent = super.internalGetParent(resource);
                    if (resourceParent != null) {
                        IJavaProject proj = element.getJavaProject();
                        if (fShowLibrariesNode || !resourceParent.equals(proj)) {
                            postAdd(resourceParent, resource, runnables);
                        }
                    }
                }
            }
            postAdd(parent, element, runnables);
        }
    }

    if (elementType == IJavaElement.COMPILATION_UNIT || elementType == IJavaElement.CLASS_FILE) {
        if (kind == IJavaElementDelta.CHANGED) {
            // isStructuralCUChange already performed above
            postRefresh(element, ORIGINAL, element, runnables);
        }
        return false;
    }

    if (elementType == IJavaElement.PACKAGE_FRAGMENT_ROOT) {
        // the contents of an external JAR has changed
        if ((flags & IJavaElementDelta.F_ARCHIVE_CONTENT_CHANGED) != 0) {
            postRefresh(element, ORIGINAL, element, runnables);
            return false;
        }
        if ((flags & (IJavaElementDelta.F_CONTENT
                | IJavaElementDelta.F_CHILDREN)) == IJavaElementDelta.F_CONTENT) {
            // TODO: This should never be true for folders (F_CONTENT is only for files)
            // content change, without children info (for example resource added/removed to class folder package)
            postRefresh(internalGetParent(element), PARENT, element, runnables);
            return true;
        }

        // the source attachment of a JAR has changed
        if ((flags & (IJavaElementDelta.F_SOURCEATTACHED | IJavaElementDelta.F_SOURCEDETACHED)) != 0)
            postUpdateIcon(element, runnables);

        if (isClassPathChange(delta)) {
            // throw the towel and do a full refresh of the affected java project.
            postRefresh(element.getJavaProject(), PROJECT, element, runnables);
            return true;
        }
    }

    handleAffectedChildren(delta, element, runnables);
    return false;
}

From source file:com.redhat.ceylon.eclipse.code.navigator.NonEssentialElementsFilter.java

License:Open Source License

/**
 * Tells whether the given package has unfiltered resources.
 *
 * @param viewer the viewer/*  w w w.ja  v a  2  s  .c  o m*/
 * @param pkg the package
 * @return <code>true</code> if the package has unfiltered resources
 * @throws JavaModelException if this element does not exist or if an exception occurs while
 *             accessing its corresponding resource
 */
protected boolean hasUnfilteredResources(Viewer viewer, IPackageFragment pkg) throws JavaModelException {
    Object[] resources = null;
    if (pkg.isDefaultPackage()) {
        IPackageFragmentRoot root = (IPackageFragmentRoot) pkg.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
        resources = root.getNonJavaResources();
    } else {
        resources = pkg.getNonJavaResources();
    }
    int length = resources.length;
    if (length == 0)
        return false;

    if (!(viewer instanceof StructuredViewer))
        return true;

    ViewerFilter[] filters = ((StructuredViewer) viewer).getFilters();
    resourceLoop: for (int i = 0; i < length; i++) {
        for (int j = 0; j < filters.length; j++) {
            if (!filters[j].select(viewer, pkg, resources[i]))
                continue resourceLoop;
        }
        return true;

    }
    return false;
}

From source file:com.siteview.mde.internal.ui.search.ClassSearchParticipant.java

License:Open Source License

public void search(ISearchRequestor requestor, QuerySpecification querySpecification, IProgressMonitor monitor)
        throws CoreException {

    if (querySpecification.getLimitTo() != S_LIMIT_REF && querySpecification.getLimitTo() != S_LIMIT_ALL)
        return;/*w  w w. j  a  va2 s  .co m*/

    String search;
    if (querySpecification instanceof ElementQuerySpecification) {
        IJavaElement element = ((ElementQuerySpecification) querySpecification).getElement();
        if (element instanceof IType)
            search = ((IType) element).getFullyQualifiedName('.');
        else
            search = element.getElementName();
        int type = element.getElementType();
        if (type == IJavaElement.TYPE)
            fSearchFor = S_FOR_TYPES;
        else if (type == IJavaElement.PACKAGE_FRAGMENT || type == IJavaElement.PACKAGE_FRAGMENT_ROOT)
            fSearchFor = S_FOR_PACKAGES;
    } else {
        fSearchFor = ((PatternQuerySpecification) querySpecification).getSearchFor();
        search = ((PatternQuerySpecification) querySpecification).getPattern();
    }
    if (fSearchFor != S_FOR_TYPES && fSearchFor != S_FOR_PACKAGES)
        return;
    fSearchPattern = PatternConstructor.createPattern(search, true);
    fSearchRequestor = requestor;

    IPath[] enclosingPaths = querySpecification.getScope().enclosingProjectsAndJars();
    IMonitorModelBase[] pluginModels = MonitorRegistry.getWorkspaceModels();
    monitor.beginTask(MDEUIMessages.ClassSearchParticipant_taskMessage, pluginModels.length);
    for (int i = 0; i < pluginModels.length; i++) {
        IProject project = pluginModels[i].getUnderlyingResource().getProject();
        if (!monitor.isCanceled() && encloses(enclosingPaths, project.getFullPath()))
            searchProject(project, monitor);
    }
}

From source file:com.windowtester.eclipse.ui.convert.WTAPIUsage.java

License:Open Source License

/**
 * Recursively iterate over the specified java element and their children to convert
 * each compilation to use the new WindowTester API.
 * /*  w  w w.  ja  v  a 2  s . c  o  m*/
 * @param elem the java element (not <code>null</code>)
 * @param monitor the progress monitor (not <code>null</code>)
 */
private void scanElement(IJavaElement elem, IProgressMonitor monitor) throws JavaModelException {
    projects.add(elem.getJavaProject());
    switch (elem.getElementType()) {
    case IJavaElement.JAVA_PROJECT:
        scanProject((IJavaProject) elem, monitor);
        break;
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        scanPackageRoot((IPackageFragmentRoot) elem, monitor);
        break;
    case IJavaElement.PACKAGE_FRAGMENT:
        scanPackage((IPackageFragment) elem, monitor);
        break;
    case IJavaElement.COMPILATION_UNIT:
        scanCompilationUnit((ICompilationUnit) elem);
        break;
    default:
        break;
    }
}

From source file:com.windowtester.eclipse.ui.convert.WTConvertAPIRefactoring.java

License:Open Source License

/**
 * Recursively iterate over the specified java element and their children to convert
 * each compilation to use the new WindowTester API.
 * //from w  w  w.j av a  2 s .  c o m
 * @param elem the java element (not <code>null</code>)
 * @param monitor the progress monitor (not <code>null</code>)
 */
private void convertElement(IJavaElement elem, IProgressMonitor monitor) throws JavaModelException {
    switch (elem.getElementType()) {
    case IJavaElement.JAVA_PROJECT:
        convertProject((IJavaProject) elem, monitor);
        break;
    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        convertPackageRoot((IPackageFragmentRoot) elem, monitor);
        break;
    case IJavaElement.PACKAGE_FRAGMENT:
        convertPackage((IPackageFragment) elem, monitor);
        break;
    case IJavaElement.COMPILATION_UNIT:
        convertCompilationUnit((ICompilationUnit) elem, monitor);
        break;
    default:
        break;
    }
}

From source file:com.worldline.awltech.i18ntools.wizard.core.ui.RefactoringWizardConfiguration.java

License:Open Source License

/**
 * Returns the first source folder available in the list. The last one
 * should be a default value that can be returned if none is found. If last
 * one is null, the first source folder found in the project will be
 * returned./*from  w ww .j  a  va2s  . c o  m*/
 * 
 * @param sourceFolders
 * @return
 */
private String getSourceFolder(final String... sourceFolders) {

    // We look for all the source folders specified, except the last one.
    for (int i = 0; i < sourceFolders.length - 1; i++) {
        final IFolder folder = this.project.getFolder(new Path(sourceFolders[i]));
        if (folder.exists()) {
            final IJavaElement javaElement = JavaCore.create(folder);
            try {
                if (javaElement != null && javaElement.getElementType() == IJavaElement.PACKAGE_FRAGMENT_ROOT
                        && ((IPackageFragmentRoot) javaElement).getKind() == IPackageFragmentRoot.K_SOURCE) {
                    return sourceFolders[i];
                }
            } catch (final JavaModelException e) {
                Activator.getDefault().getLog().log(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                        RefactoringWizardMessages.ERROR_SEEK_SOURCEFOLDER.value(), e));
            }
        }
    }

    if (sourceFolders.length > 0 && sourceFolders[sourceFolders.length - 1] == null) {
        final IJavaProject javaProject = JavaCore.create(this.project);
        try {
            final IPackageFragmentRoot[] allPackageFragmentRoots = javaProject.getAllPackageFragmentRoots();
            for (final IPackageFragmentRoot packageFragmentRoot : allPackageFragmentRoots) {
                if (packageFragmentRoot.getKind() == IPackageFragmentRoot.K_SOURCE) {
                    return packageFragmentRoot.getPath().makeRelativeTo(this.project.getFullPath()).toString();
                }
            }
        } catch (final JavaModelException e) {
            Activator.getDefault().getLog().log(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    RefactoringWizardMessages.ERROR_SEEK_SOURCEFOLDER.value(), e));
        }

    }

    return null;
}

From source file:de.fu_berlin.inf.jtourbus.view.TourChangeListener.java

License:Open Source License

void visitInternal(IProgressMonitor pm, IJavaElementDelta delta) {

    IJavaElement elem = delta.getElement();
    IJavaElementDelta[] children = delta.getAffectedChildren();

    if (pm != null)
        pm.beginTask("", children.length + 2);

    if ((delta.getFlags() & IJavaElementDelta.F_CHILDREN) != 0) {

        if (delta.getKind() != IJavaElementDelta.CHANGED) {
            throw new RuntimeException("ASSERT: CHILDREN should always be CHANGE");
        }//from   ww  w  . j  a v  a  2  s.  c o  m

        for (int i = 0; i < children.length; i++) {
            visit(pm, children[i]);
        }
        return;
    }

    switch (delta.getKind()) {
    case IJavaElementDelta.ADDED: {
        if (!((delta.getFlags() & IJavaElementDelta.F_CHILDREN) == 0))
            throw new RuntimeException("ASSERT: ADDED has no children");

        switch (elem.getElementType()) {
        case IJavaElement.JAVA_MODEL:
            throw new RuntimeException("ASSERT: Adding Java Model not possible");
        case IJavaElement.JAVA_PROJECT:
            throw new RuntimeException("ASSERT: Adding Java Project not possible");
        case IJavaElement.PACKAGE_FRAGMENT_ROOT:
            // The user added a source folder

            for (BusStop bs : Utilities.findJTourBusStops(pm, elem.getResource()))
                fContentProvider.fTourPlan.add(bs);
            return;
        case IJavaElement.PACKAGE_FRAGMENT:
            // The user inserted a packaged

            for (BusStop bs : Utilities.findJTourBusStops(pm, elem.getResource()))
                fContentProvider.fTourPlan.add(bs);
            return;
        case IJavaElement.COMPILATION_UNIT: {
            ICompilationUnit cu = (ICompilationUnit) elem;
            if (cu.getPrimary().equals(cu)) {
                for (BusStop bs : Utilities.findJTourBusStops(pm, elem.getResource()))
                    fContentProvider.fTourPlan.add(bs);
            }
            return;
        }
        default:
            ICompilationUnit cu = (ICompilationUnit) delta.getElement()
                    .getAncestor(IJavaElement.COMPILATION_UNIT);

            redoCU(cu, pm);
            return;
        }
    }
    case IJavaElementDelta.REMOVED:
        if (!((delta.getFlags() & IJavaElementDelta.F_CHILDREN) == 0))
            throw new RuntimeException("REMOVED has children");

        switch (elem.getElementType()) {
        case IJavaElement.JAVA_MODEL:
            throw new RuntimeException("ASSERT: Java Model not possible");
        case IJavaElement.JAVA_PROJECT:
            fContentProvider.fTourPlan.removeAll();
            return;
        case IJavaElement.PACKAGE_FRAGMENT_ROOT:
        case IJavaElement.PACKAGE_FRAGMENT:
            fContentProvider.fTourPlan.removeAll();

            for (BusStop bs : Utilities.findJTourBusStops(pm, elem.getJavaProject().getResource()))
                fContentProvider.fTourPlan.add(bs);

            return;
        case IJavaElement.COMPILATION_UNIT: {
            ICompilationUnit cu = (ICompilationUnit) elem;
            if (cu.getPrimary().equals(cu)) {
                fContentProvider.fTourPlan.removeCU(cu);
            }
            return;
        }
        default: {
            ICompilationUnit cu = (ICompilationUnit) delta.getElement()
                    .getAncestor(IJavaElement.COMPILATION_UNIT);

            redoCU(cu, pm);
            return;
        }
        }
    case IJavaElementDelta.CHANGED:
        // F_CONTENT && F_FINE_GRAINED
        if ((delta.getFlags() & IJavaElementDelta.F_CONTENT) != 0
                && (delta.getFlags() & IJavaElementDelta.F_FINE_GRAINED) != 0) {

            ICompilationUnit cu = (ICompilationUnit) delta.getElement()
                    .getAncestor(IJavaElement.COMPILATION_UNIT);

            redoCU(cu, pm);
        }

        // Closing without saving will trigger this event. We thus re-read
        // the file.
        if ((delta.getFlags() & IJavaElementDelta.F_PRIMARY_WORKING_COPY) != 0) {

            ICompilationUnit cu = (ICompilationUnit) delta.getElement();

            /* FIXME */

            redoCU(cu, pm);
        }
        break;
    }
}

Example usage for org.eclipse.jdt.core IJavaElement PACKAGE_FRAGMENT_ROOT

Introduction

Prototype

Document

Usage