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

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.grails.ide.eclipse.editor.gsp.search.FindTagReferences.java

License:Open Source License

/**
 * only check for tags if the java element states that 
 * is a field in a taglib/*from w  w  w  .j  av a 2  s. c om*/
 * @param elt
 * @return the tag name if the specification corresponds to a tag, or else null
 */
boolean shouldSearchForTagRefs(IJavaElement elt) {
    // strangely, if the referenced tag is from a class file, then the type is ILocalVariable
    if (elt.getElementType() == IJavaElement.LOCAL_VARIABLE) {
        elt = elt.getParent();
    }
    if (elt.getElementType() == IJavaElement.FIELD) {
        ICompilationUnit unit = (ICompilationUnit) elt.getAncestor(IJavaElement.COMPILATION_UNIT);
        if (unit instanceof GroovyCompilationUnit) {
            if (GrailsWorkspaceCore.isTagLibClass((GroovyCompilationUnit) unit)) {
                tagField = elt;
                tagName = tagField.getElementName();
            }
        } else {
            // could be a built in tag
            IType type = (IType) elt.getAncestor(IJavaElement.TYPE);
            if (type != null && type.isReadOnly() && type.getElementName().endsWith("TagLib")) {
                IPackageFragment frag = (IPackageFragment) elt.getAncestor(IJavaElement.PACKAGE_FRAGMENT);
                if (frag.getElementName().equals("org.codehaus.groovy.grails.plugins.web.taglib")) {
                    tagField = elt;
                    tagName = tagField.getElementName();
                }
            }
        }
    }
    return tagField != null;
}

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From source file:org.grails.ide.eclipse.refactoring.rename.ParticipantChangeManager.java

License:Open Source License

public TextChange getTextChangeFor(Object el) {
    if (el instanceof IJavaElement) {
        IJavaElement jel = (IJavaElement) el;
        ICompilationUnit cu = (ICompilationUnit) jel.getAncestor(IJavaElement.COMPILATION_UNIT);
        return getCUChange(cu);
    } else if (el instanceof IFile) {
        return getFileChange((IFile) el);
    }//www . j  ava  2s  .co m
    return null;
}

---

From source file:org.grails.ide.eclipse.refactoring.rename.type.ServiceReferenceUpdater.java

License:Open Source License

@Override
public void createChanges(final ParticipantChangeManager changes, final RefactoringStatus status,
        IProgressMonitor pm) {//from  ww w  .  j  av  a2  s.com
    Assert.isNotNull(changes);
    try {
        IJavaSearchScope scope = RefactoringUtils.getSearchScope(project.getJavaProject());
        SearchEngine engine = new SearchEngine();

        final String fieldName = GrailsNameUtils.getPropertyName(renaming.getTarget().getFullyQualifiedName());
        final String fieldNewName = GrailsNameUtils.getPropertyName(renaming.getNewName());

        SearchPattern fieldByNamePat = SearchPattern.createPattern(fieldName, IJavaSearchConstants.FIELD,
                IJavaSearchConstants.ALL_OCCURRENCES,
                SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE);

        SearchRequestor req = new SearchRequestor() {
            @Override
            public void acceptSearchMatch(SearchMatch match) throws CoreException {
                try {
                    if (match instanceof FieldDeclarationMatch || match instanceof FieldReferenceMatch) {
                        Object el = match.getElement();
                        if (el instanceof IJavaElement) {
                            IJavaElement jel = (IJavaElement) el;
                            ICompilationUnit cu = (ICompilationUnit) jel
                                    .getAncestor(IJavaElement.COMPILATION_UNIT);
                            if (cu != null) {
                                TextChange cuChange = changes.getCUChange(cu);
                                final int offset = match.getOffset();
                                final int length = match.getLength();
                                String text = cu.getBuffer().getText(offset, length);
                                if (text.equals(fieldName)) {
                                    //Only perform the edit if the text we are about to replace is what we expect!
                                    cuChange.addEdit(new ReplaceEdit(offset, length, fieldNewName));
                                }
                            }
                        }
                    }
                } catch (Exception e) {
                    //Ignore this match and log the exception...
                    //but keep processing other matches!
                    GrailsCoreActivator.log(e);
                }
            }

        };
        engine.search(fieldByNamePat, new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() },
                scope, req, pm);
    } catch (CoreException e) {
        GrailsCoreActivator.log(e);
    }
}

---

From source file:org.grails.ide.eclipse.ui.internal.launch.GrailsTestLaunchShortcut.java

License:Open Source License

@Override
protected String getScriptFor(IResource resource) {
    if (GrailsResourceUtil.isTestFolder(resource)) {
        String script = TEST_APP + " -" + resource.getName();
        System.out.println("grails command = " + script);
        return script;
    } else {//from  w  w  w .jav a  2  s  . co m
        String script = TEST_APP;
        String testType = GrailsResourceUtil.typeOfTest(resource);
        if (testType != null) {
            script += " -" + testType;
        }
        if (GrailsResourceUtil.isSourceFile(resource)) {
            IJavaElement javaElement = JavaCore.create(resource);
            if (javaElement != null) {
                int elementType = javaElement.getElementType();
                switch (elementType) {
                case IJavaElement.PACKAGE_FRAGMENT:
                    IPackageFragment pkg = (IPackageFragment) javaElement;
                    script += " " + pkg.getElementName() + ".*";
                    break;
                case IJavaElement.COMPILATION_UNIT:
                    String pathIncludingSourceFolder = resource.getProjectRelativePath().toString();
                    IPackageFragmentRoot sourceRoot = (IPackageFragmentRoot) javaElement
                            .getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
                    String sourceFolderPath = sourceRoot.getResource().getProjectRelativePath().toString();
                    Assert.isTrue(pathIncludingSourceFolder.startsWith(sourceFolderPath + "/"));
                    String pathWithoutSourceFolder = pathIncludingSourceFolder
                            .substring(sourceFolderPath.length() + 1);
                    if (isRecentGrails(resource.getProject())) {
                        pathWithoutSourceFolder = removeSuffix(pathWithoutSourceFolder, ".groovy");
                    } else {
                        pathWithoutSourceFolder = removeSuffix(pathWithoutSourceFolder, "Test.groovy",
                                "Tests.groovy", ".groovy");
                    }
                    if (pathWithoutSourceFolder != null) {
                        String testTarget = pathWithoutSourceFolder.replace('/', '.');
                        script += " " + testTarget;
                    }
                default:
                    break;
                }
            }
        }
        debug("grails command = " + script);
        return script;
    }
}

---

From source file:org.granite.builder.util.ProjectUtil.java

License:Open Source License

public static JavaClassInfo getJavaClassInfo(IJavaProject project, IFile resource) throws CoreException {
    // classPath = "<project name>/<output folder>/<package>/<file>.class"
    IPath classPath = resource.getFullPath().makeRelative();

    // Find output folder: "<project name>/<output folder>".
    IPath outputFolder = null;// ww  w. ja va 2s .  co m
    if (project.getOutputLocation() != null && project.getOutputLocation().isPrefixOf(classPath))
        outputFolder = project.getOutputLocation();
    else {
        for (IClasspathEntry cpe : project.getRawClasspath()) {
            if (cpe.getEntryKind() == IClasspathEntry.CPE_SOURCE) {
                IPath output = cpe.getOutputLocation();
                if (output != null && output.isPrefixOf(classPath)) {
                    outputFolder = output;
                    break;
                }
            }
        }
    }

    if (outputFolder == null)
        return null;

    // Compute class name.
    IPath relativeClassPath = classPath.removeFirstSegments(outputFolder.segmentCount());
    IPath relativeClassName = relativeClassPath.removeFileExtension();
    String className = relativeClassName.toPortableString().replace('/', '.');

    // Compute java source path: "<package>/<class name>[$<inner class>].java".
    String javaFullPath = relativeClassName.addFileExtension("java").toPortableString();
    String javaFilePath = javaFullPath;
    int iDollar = javaFilePath.indexOf('$');
    if (iDollar != -1)
        javaFilePath = javaFilePath.substring(0, iDollar) + ".java";

    IJavaElement javaElement = project.findElement(new Path(javaFilePath));
    if (javaElement == null)
        return null;

    IJavaElement sourceFolder = javaElement.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
    if (sourceFolder == null)
        return null;

    IPath folderPath = sourceFolder.getPath().makeRelative();
    if (folderPath.segmentCount() > 0)
        folderPath = folderPath.removeFirstSegments(1);

    // Fix issues with project not in the workspace directory.
    outputFolder = project.getProject().getWorkspace().getRoot().findMember(outputFolder).getLocation();

    return new JavaClassInfo(folderPath.toPortableString(), javaFullPath, className,
            new File(outputFolder.toPortableString(), relativeClassPath.toPortableString()));
}

---

From source file:org.hibernate.eclipse.console.utils.xpl.SelectionHelper.java

License:Open Source License

static public IType getClassFromElement(IJavaElement element) {
    IType classToTest = null;//  w ww .j  av  a 2  s  .  c o  m
    if (element != 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) {
                        HibernateConsolePlugin.getDefault().log(e);
                    }
                }
            }
        }
    }
    return classToTest;
}

---

From source file:org.jboss.tools.arquillian.ui.internal.wizards.NewArquillianJUnitTestCasePageOne.java

License:Open Source License

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

    initContainerPage(element);
    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) {
                        ArquillianUIActivator.log(e);
                    }
                }
            }
        }
        if (classToTest != null) {
            try {
                if (!CoreTestSearchEngine.isTestImplementor(classToTest)) {
                    setClassUnderTest(classToTest.getFullyQualifiedName('.'));
                }
            } catch (JavaModelException e) {
                ArquillianUIActivator.log(e);
            }
        }
    }

    restoreWidgetValues();
    updateStatus(getStatusList());
}

---

From source file:org.jboss.tools.vscode.java.internal.handlers.CodeLensHandler.java

License:Open Source License

private List<Location> findReferences(IJavaElement element) throws JavaModelException, CoreException {
    SearchPattern pattern = SearchPattern.createPattern(element, IJavaSearchConstants.REFERENCES);
    final List<Location> result = new ArrayList<>();
    SearchEngine engine = new SearchEngine();
    engine.search(pattern, new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() },
            createSearchScope(), new SearchRequestor() {

                @Override//from   w ww  .j  av a 2  s.co  m
                public void acceptSearchMatch(SearchMatch match) throws CoreException {
                    Object o = match.getElement();
                    if (o instanceof IJavaElement) {
                        IJavaElement element = (IJavaElement) o;
                        ICompilationUnit compilationUnit = (ICompilationUnit) element
                                .getAncestor(IJavaElement.COMPILATION_UNIT);
                        if (compilationUnit == null) {
                            return;
                        }
                        Location location = JDTUtils.toLocation(compilationUnit, match.getOffset(),
                                match.getLength());
                        result.add(location);

                    }

                }
            }, new NullProgressMonitor());

    return result;
}

---

From source file:org.jboss.tools.vscode.java.internal.handlers.NavigateToDefinitionHandler.java

License:Open Source License

private Location computeDefinitonNavigation(ITypeRoot unit, int line, int column) {
    try {//from w ww.  j av  a 2  s .c  o m
        IJavaElement[] elements = unit.codeSelect(JsonRpcHelpers.toOffset(unit.getBuffer(), line, column), 0);

        if (elements == null || elements.length != 1)
            return null;
        IJavaElement element = elements[0];
        ICompilationUnit compilationUnit = (ICompilationUnit) element
                .getAncestor(IJavaElement.COMPILATION_UNIT);
        IClassFile cf = (IClassFile) element.getAncestor(IJavaElement.CLASS_FILE);
        if (compilationUnit != null || (cf != null && cf.getSourceRange() != null)) {
            return JDTUtils.toLocation(element);
        }
        return null;

    } catch (JavaModelException e) {
        JavaLanguageServerPlugin.logException("Problem with codeSelect for" + unit.getElementName(), e);
    }
    return null;
}

---

From source file:org.jboss.tools.vscode.java.internal.handlers.ReferencesHandler.java

License:Open Source License

@Override
public List<org.jboss.tools.langs.Location> handle(org.jboss.tools.langs.ReferenceParams param) {
    SearchEngine engine = new SearchEngine();

    String uri = param.getTextDocument().getUri();
    if (MODE_SOURCEGRAPH) {
        // SOURCEGRAPH: URI is expected to be in form file:///foo/bar,
        // but we need to construct absolute file URI
        uri = new File(connection.getWorkpaceRoot(), uri.substring(8)).toURI().toString();
    }//  w w w  .j a v  a  2s  .c  o  m

    ITypeRoot unit = JDTUtils.resolveTypeRoot(uri);

    if (unit == null) {
        return null;
    }

    try {
        IJavaElement elementToSearch = findElementAtSelection(unit, param.getPosition().getLine().intValue(),
                param.getPosition().getCharacter().intValue());

        if (elementToSearch == null)
            return Collections.emptyList();

        SearchPattern pattern = SearchPattern.createPattern(elementToSearch, IJavaSearchConstants.REFERENCES);
        List<org.jboss.tools.langs.Location> locations = new ArrayList<org.jboss.tools.langs.Location>();
        engine.search(pattern, new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() },
                createSearchScope(), new SearchRequestor() {

                    @Override
                    public void acceptSearchMatch(SearchMatch match) throws CoreException {
                        Object o = match.getElement();
                        if (o instanceof IJavaElement) {
                            IJavaElement element = (IJavaElement) o;
                            ICompilationUnit compilationUnit = (ICompilationUnit) element
                                    .getAncestor(IJavaElement.COMPILATION_UNIT);
                            Location location = null;
                            if (compilationUnit != null) {
                                location = JDTUtils.toLocation(compilationUnit, match.getOffset(),
                                        match.getLength());
                            } else {
                                IClassFile cf = (IClassFile) element.getAncestor(IJavaElement.CLASS_FILE);
                                if (cf != null && cf.getSourceRange() != null) {
                                    location = JDTUtils.toLocation(cf, match.getOffset(), match.getLength());
                                }
                            }
                            if (location != null)
                                if (MODE_SOURCEGRAPH) {
                                    // SOURCEGRAPH: transforming location's URI back from file://WORKSPACE/foo/bar to file:///foo/bar
                                    File file = new File(URI.create(location.getUri()).getPath());
                                    File root = new File(connection.getWorkpaceRoot());
                                    location.setUri("file:///" + root.toPath().relativize(file.toPath())
                                            .toString().replace(File.separatorChar, '/'));
                                }
                            locations.add(location);

                        }

                    }
                }, new NullProgressMonitor());

        return locations;
    } catch (CoreException e) {
        JavaLanguageServerPlugin.logException("Find references failure ", e);
    }
    return null;
}

---

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