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

List of usage examples for org.eclipse.jdt.core IJavaElement getAncestor

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Introduction

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

Prototype

IJavaElement getAncestor(int ancestorType);

Source Link

Document

Returns this Java element or the first ancestor of this element that has the given type.

Usage

From source file:org.jboss.tools.vscode.java.internal.JDTUtils.java

License:Open Source License

/**
 * Given the uri returns a {@link IClassFile}.
 * May return null if it can not resolve the uri to a
 * library.// w  w w  .  j ava2 s.c  om
 *
 * @see #toLocation(IClassFile, int, int)
 * @param uri with 'jdt' scheme
 * @return class file
 */
public static IClassFile resolveClassFile(String uriString) {
    URI uri = null;
    try {
        uri = new URI(uriString);
    } catch (URISyntaxException e) {
        JavaLanguageServerPlugin.logException("Failed to resolve " + uriString, e);
    }
    if (uri != null && "jdt".equals(uri.getScheme()) && "contents".equals(uri.getAuthority())) {
        String handleId = uri.getQuery();
        IJavaElement element = JavaCore.create(handleId);
        IClassFile cf = (IClassFile) element.getAncestor(IJavaElement.CLASS_FILE);
        return cf;
    }
    return null;

}

From source file:org.jboss.tools.vscode.java.internal.JDTUtils.java

License:Open Source License

/**
 * Creates a location for a given java element.
 * Element can be a {@link ICompilationUnit} or {@link IClassFile}
 *
 * @param element//from w w w .  j  a  v a 2  s .c om
 * @return location or null
 * @throws JavaModelException
 */
public static Location toLocation(IJavaElement element) throws JavaModelException {
    ICompilationUnit unit = (ICompilationUnit) element.getAncestor(IJavaElement.COMPILATION_UNIT);
    IClassFile cf = (IClassFile) element.getAncestor(IJavaElement.CLASS_FILE);
    if (unit == null && cf == null) {
        return null;
    }
    if (element instanceof ISourceReference) {
        ISourceRange nameRange = ((ISourceReference) element).getNameRange();
        if (cf == null) {
            return toLocation(unit, nameRange.getOffset(), nameRange.getLength());
        } else {
            return toLocation(cf, nameRange.getOffset(), nameRange.getLength());
        }
    }
    return null;
}

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

License:Open Source License

protected IStatus run(final IProgressMonitor progressMonitor) {
    final long startTime = new Date().getTime();
    IJavaElement element = null;
    try {//from  w ww . j av a 2 s .c  om
        progressMonitor.beginTask("Building JAX-RS Metamodel", 3 * SCALE);
        progressMonitor.worked(SCALE);
        Logger.debug("Building JAX-RS Metamodel after: {}", event);
        if (progressMonitor.isCanceled()) {
            return Status.CANCEL_STATUS;
        }
        // scan and filter delta, retrieve a list of java changes
        final List<JavaElementChangedEvent> affectedJavaElements = new JavaElementDeltaScanner()
                .scanAndFilterEvent(event, new SubProgressMonitor(progressMonitor, SCALE));
        if (affectedJavaElements.isEmpty()) {
            Logger.debug("* No relevant affected element to process *");
            return Status.OK_STATUS;
        }
        if (progressMonitor.isCanceled()) {
            return Status.CANCEL_STATUS;
        }
        for (JavaElementChangedEvent delta : affectedJavaElements) {
            element = delta.getElement();
            final IJavaProject javaProject = element.getJavaProject();
            final JaxrsMetamodel metamodel = JaxrsMetamodelLocator.get(javaProject, true);
            // prevent NPE when opening a closed project (ie, there's no metamodel yet).
            if (metamodel != null) {
                try {
                    metamodel.processJavaElementChange(delta, progressMonitor);
                    if (progressMonitor.isCanceled()) {
                        return Status.CANCEL_STATUS;
                    }
                } catch (Exception e) {
                    final IStatus status = Logger.error("Failed to build or refresh the JAX-RS metamodel", e);
                    metamodel.setBuildStatus(status);
                    return status;
                } finally {
                    if (Logger.isDebugEnabled()) {
                        Logger.debug(metamodel.getStatus());
                    }
                }
            }
        }
    } catch (Exception e) {
        Logger.error("Failed to process Java element change", e);
        if (element != null) {
            return new Status(IStatus.ERROR, JBossJaxrsCorePlugin.PLUGIN_ID,
                    "Failed to build or refresh the JAX-RS metamodel while processing "
                            + element.getElementName() + " in project "
                            + element.getAncestor(IJavaElement.JAVA_PROJECT).getElementName(),
                    e);
        } else {
            return new Status(IStatus.ERROR, JBossJaxrsCorePlugin.PLUGIN_ID,
                    "Failed to build or refresh the JAX-RS metamodel while processing a change in the Java Model",
                    e);
        }
    } finally {
        progressMonitor.done();
        long endTime = new Date().getTime();
        if (Logger.isDebugEnabled()) {
            Logger.debug("Java element changes processed in {} ms.", (endTime - startTime));
        }

    }
    return Status.OK_STATUS;
}

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

License:Open Source License

public IStatus execute(final IProgressMonitor progressMonitor) {
    final long startTime = new Date().getTime();
    IJavaElement element = null;
    try {/*from  ww  w  .ja  va2  s .c  o m*/
        progressMonitor.beginTask("Building JAX-RS Metamodel", 3 * SCALE);
        progressMonitor.worked(SCALE);
        Logger.debug("Building JAX-RS Metamodel after: {}", event);
        if (progressMonitor.isCanceled()) {
            return Status.CANCEL_STATUS;
        }
        // scan and filter delta, retrieve a list of java changes
        final List<JavaElementChangedEvent> affectedJavaElements = new JavaElementDeltaScanner()
                .scanAndFilterEvent(event, new SubProgressMonitor(progressMonitor, SCALE));
        if (affectedJavaElements.isEmpty()) {
            Logger.debug("* No relevant affected element to process *");
            return Status.OK_STATUS;
        }
        if (progressMonitor.isCanceled()) {
            return Status.CANCEL_STATUS;
        }
        for (JavaElementChangedEvent delta : affectedJavaElements) {
            element = delta.getElement();
            final IJavaProject javaProject = element.getJavaProject();
            final JaxrsMetamodel metamodel = JaxrsMetamodelLocator.get(javaProject, true);
            // prevent NPE when opening a closed project (ie, there's no metamodel yet).
            if (metamodel != null) {
                try {
                    metamodel.processJavaElementChange(delta, progressMonitor);
                    if (progressMonitor.isCanceled()) {
                        return Status.CANCEL_STATUS;
                    }
                } catch (Throwable e) {
                    final IStatus status = Logger.error("Failed to build or refresh the JAX-RS metamodel", e);
                    metamodel.setBuildStatus(status);
                    return status;
                } finally {
                    if (Logger.isDebugEnabled()) {
                        Logger.debug(metamodel.getStatus());
                    }
                }
            }
        }
    } catch (Exception e) {
        if (element != null) {
            return new Status(IStatus.ERROR, JBossJaxrsCorePlugin.PLUGIN_ID,
                    "Failed to build or refresh the JAX-RS metamodel while processing "
                            + element.getElementName() + " in project "
                            + element.getAncestor(IJavaElement.JAVA_PROJECT).getElementName(),
                    e);
        } else {
            return new Status(IStatus.ERROR, JBossJaxrsCorePlugin.PLUGIN_ID,
                    "Failed to build or refresh the JAX-RS metamodel while processing a change in the Java Model",
                    e);
        }
    } finally {
        progressMonitor.done();
        long endTime = new Date().getTime();
        if (Logger.isDebugEnabled()) {
            Logger.debug("Java element changes processed in {} ms.", (endTime - startTime));
        }

    }
    return Status.OK_STATUS;
}

From source file:org.jboss.tools.ws.jaxrs.core.jdt.JdtUtils.java

License:Open Source License

/**
 * Returns the closest Java Element of the expected type that surrounds the
 * given location in the given compilationUnit. This method can return
 * SimpleAnnotation, which the default JDT ICompilationUnit implementation
 * does not support./*from w  w  w  . j  a  v a2 s .  co m*/
 * 
 * @param sourceRange
 * @param location
 * @param type
 * @return
 * @throws JavaModelException
 */
public static IJavaElement getElementAt(ICompilationUnit compilationUnit, int location, int type)
        throws JavaModelException {
    final IJavaElement element = getElementAt(compilationUnit, location);
    if (element != null && element.exists()) {
        return element.getAncestor(type);
    }
    return null;
}

From source file:org.jboss.tools.ws.jaxrs.ui.navigation.JaxrsNameBindingHyperlinkDetector.java

License:Open Source License

/**
 * (non-Javadoc)//  www  .  j a  v a 2  s. c om
 * 
 * @see org.eclipse.jface.text.hyperlink.IHyperlinkDetector#detectHyperlinks(org.eclipse.jface.text.ITextViewer,
 *      org.eclipse.jface.text.IRegion, boolean)
 */
@Override
public IHyperlink[] detectHyperlinks(final ITextViewer textViewer, final IRegion region,
        final boolean canShowMultipleHyperlinks) {
    final ITextEditor textEditor = (ITextEditor) getAdapter(ITextEditor.class);
    if (region == null || !(textEditor instanceof JavaEditor)) {
        return null;
    }
    final int offset = region.getOffset();
    final IJavaElement input = EditorUtility.getActiveEditorJavaInput();
    if (input == null) {
        return null;
    }
    final JaxrsMetamodel metamodel = getMetamodel(input);
    if (metamodel == null) {
        return null;
    }
    final IRegion wordRegion = getCurrentWordRegion(textEditor, offset);
    if (wordRegion == null || wordRegion.getLength() == 0) {
        return null;
    }
    final IJavaElement[] selectedJavaElements = getSelectedElements(input, wordRegion);

    final List<IJaxrsJavaElement> targets = findTargets(metamodel, selectedJavaElements,
            (ICompilationUnit) input.getAncestor(IJavaElement.COMPILATION_UNIT));
    if (targets != null && !targets.isEmpty()) {
        final IHyperlink[] result = new IHyperlink[targets.size()];
        for (int i = 0; i < targets.size(); i++) {
            result[i] = new JaxrsNameBindingAnnotationHyperlink(targets.get(i), wordRegion);
        }
        return result;
    }
    return null;

}

From source file:org.jboss.tools.ws.jaxrs.ui.navigation.JaxrsNameBindingHyperlinkDetector.java

License:Open Source License

/**
 * If the given selectedJavaElement match a custom Name Binding annotation
 * defined in the given {@link JaxrsMetamodel}, then return the list of
 * associated elements with this name binding.
 * //ww w.  ja v a2s  .  c o  m
 * @param metamodel
 *            the JAX-RS Metamodel associated with the given element in the
 *            current text editor
 * @param selectedJavaElements
 *            the selected java elements
 * @param currentCompilationUnit
 *            the {@link ICompilationUnit} opened in the current text editor
 * @return the list of target {@link IJavaElement} or empty list if none
 *         match.
 */
private List<IJaxrsJavaElement> findTargets(final JaxrsMetamodel metamodel,
        final IJavaElement[] selectedJavaElements, final ICompilationUnit currentCompilationUnit) {
    final List<IJaxrsJavaElement> targetElements = new ArrayList<IJaxrsJavaElement>();
    for (IJavaElement selectedJavaElement : selectedJavaElements) {
        final IJaxrsElement associatedJaxrsElement = metamodel.findElement(selectedJavaElement);
        if (associatedJaxrsElement != null
                && associatedJaxrsElement.getElementKind() == EnumElementKind.NAME_BINDING) {
            final JaxrsNameBinding nameBinding = (JaxrsNameBinding) associatedJaxrsElement;
            final Collection<IJaxrsElement> matchingElements = metamodel
                    .findElementsByAnnotation(nameBinding.getJavaClassName());
            for (IJaxrsElement matchingElement : matchingElements) {
                final IJavaElement matchingJavaElement = ((IJaxrsJavaElement) matchingElement).getJavaElement();
                // skip if the matching/target Java element is part of the current compilation unit
                if (!matchingJavaElement.getAncestor(IJavaElement.COMPILATION_UNIT)
                        .equals(currentCompilationUnit)) {
                    targetElements.add((IJaxrsJavaElement) matchingElement);
                }
            }
        }
    }
    return targetElements;
}

From source file:org.jnario.spec.ui.wizards.NewSpecWizardPageOne.java

License:Open Source License

public void init(IStructuredSelection selection) {
    IJavaElement element = getInitialJavaElement(selection);

    initContainerPage(element);//from w  w  w  .  j  av  a2 s . c  o m
    initTypePage(element);
    // put default class to test
    if (element != null) {
        IType classToTest = null;
        // evaluate the enclosing type
        IType typeInCompUnit = (IType) element.getAncestor(IJavaElement.TYPE);
        if (typeInCompUnit != null) {
            if (typeInCompUnit.getCompilationUnit() != null) {
                classToTest = typeInCompUnit;
            }
        } else {
            ICompilationUnit cu = (ICompilationUnit) element.getAncestor(IJavaElement.COMPILATION_UNIT);
            if (cu != null)
                classToTest = cu.findPrimaryType();
            else {
                if (element instanceof IClassFile) {
                    try {
                        IClassFile cf = (IClassFile) element;
                        if (cf.isStructureKnown())
                            classToTest = cf.getType();
                    } catch (JavaModelException e) {
                        JUnitPlugin.log(e);
                    }
                }
            }
        }
        if (classToTest != null) {
            try {
                if (!CoreTestSearchEngine.isTestImplementor(classToTest)) {
                    setClassUnderTest(classToTest.getFullyQualifiedName('.'));
                }
            } catch (JavaModelException e) {
                JUnitPlugin.log(e);
            }
        }
    }

    updateStatus(getStatusList());
}

From source file:org.python.pydev.editor.codecompletion.revisited.javaintegration.JavaProjectModulesManager.java

License:Open Source License

/**
 * @param dontSearchInit: not applicable for this method (ignored)
 * @return the module that corresponds to the passed name.
 *//*from  www.j  a v a  2s. c om*/
public IModule getModuleInDirectManager(String name, IPythonNature nature, boolean dontSearchInit) {
    if (DEBUG_GET_MODULE) {
        System.out.println("Trying to get module in java project modules manager: " + name);
    }
    if (name.startsWith(".")) { //this happens when looking for a relative import
        return null;
    }
    try {
        IJavaElement javaElement = this.javaProject.findType(name);
        if (javaElement == null) {
            javaElement = this.javaProject.findElement(new Path(name.replace('.', '/')));
        }

        if (DEBUG_GET_MODULE) {
            System.out.println("Found: " + javaElement);
        }

        if (javaElement != null) {

            //now, there's a catch here, we'll find any class in the project classpath, even if it's in the
            //global classpath (e.g.: rt.jar), and this shouldn't be treated in this project modules manager
            //(that's treated in the Jython system manager)
            IJavaElement ancestor = javaElement.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
            if (ancestor instanceof IPackageFragmentRoot) {
                IPackageFragmentRoot packageFragmentRoot = (IPackageFragmentRoot) ancestor;
                IClasspathEntry rawClasspathEntry = packageFragmentRoot.getRawClasspathEntry();
                if (rawClasspathEntry.getEntryKind() == IClasspathEntry.CPE_CONTAINER) {
                    return null;
                }
            }
            return new JavaModuleInProject(name, this.javaProject);
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return null;
}

From source file:org.seasar.s2junit4plugin.wizard.NewS2JUnit4TestCaseWizardPageOne.java

License:Apache License

/**
 * Initialized the page with the current selection
 * @param selection The selection//  w w w  .j  a va 2  s .  c o m
 */
public void init(IStructuredSelection selection) {
    IJavaElement element = getInitialJavaElement(selection);

    try {
        String mainTestPath = PreferenceStoreUtil.getPreferenceStoreOfWorkspace()
                .getString(Constants.PREF_TEST_JAVA_PATH);
        IJavaProject javaProject = element.getJavaProject();
        IFolder folder = javaProject.getProject().getFolder(mainTestPath);
        if (folder.exists()) {
            IPackageFragmentRoot findPackageFragmentRoot = javaProject
                    .findPackageFragmentRoot(folder.getFullPath());
            setPackageFragmentRoot(findPackageFragmentRoot, true);
        } else {
            initContainerPage(element);
        }
    } catch (JavaModelException e) {
        Logger.error(e, this);
    }
    initTypePage(element);
    // put default class to test      
    if (element != null) {
        IType classToTest = null;
        // evaluate the enclosing type
        IType typeInCompUnit = (IType) element.getAncestor(IJavaElement.TYPE);
        if (typeInCompUnit != null) {
            if (typeInCompUnit.getCompilationUnit() != null) {
                classToTest = typeInCompUnit;
            }
        } else {
            ICompilationUnit cu = (ICompilationUnit) element.getAncestor(IJavaElement.COMPILATION_UNIT);
            if (cu != null)
                classToTest = cu.findPrimaryType();
            else {
                if (element instanceof IClassFile) {
                    try {
                        IClassFile cf = (IClassFile) element;
                        if (cf.isStructureKnown())
                            classToTest = cf.getType();
                    } catch (JavaModelException e) {
                        Logger.error(e, this);
                    }
                }
            }
        }
        if (classToTest != null) {
            try {
                if (!TestSearchEngine.isTestImplementor(classToTest)) {
                    setClassUnderTest(classToTest.getFullyQualifiedName('.'));
                }
            } catch (JavaModelException e) {
                Logger.error(e, this);
            }
        }
    }

    restoreWidgetValues();

    boolean isJunit4 = false;
    //      if (element != null && element.getElementType() != IJavaElement.JAVA_MODEL) {
    //         IJavaProject project= element.getJavaProject();
    //         try {
    //            isJunit4= project.findType(JUnitPlugin.JUNIT4_ANNOTATION_NAME) != null;
    //         } catch (JavaModelException e) {
    //            // ignore
    //         }
    //      }
    if (store.getString(Constants.PREF_TEST_GENERATION_TYPE)
            .equals(org.seasar.s2junit4plugin.Messages.getString("Preference.JUnit4"))) {
        isJunit4 = true;
    }
    setJUnit4(isJunit4, true);

    boolean isS2Junit4 = false;
    //      if (element != null && element.getElementType() != IJavaElement.JAVA_MODEL) {
    //         IJavaProject project= element.getJavaProject();
    //         try {
    //            isS2Junit4= project.findType("org.seasar.framework.unit.Seasar2") != null;
    //         } catch (JavaModelException e) {
    //            // ignore
    //         }
    //      }
    if (store.getString(Constants.PREF_TEST_GENERATION_TYPE)
            .equals(org.seasar.s2junit4plugin.Messages.getString("Preference.S2JUnit4"))) {
        isS2Junit4 = true;
    }
    setS2JUnit4(isS2Junit4, true);

    updateStatus(getStatusList());
}