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.eclipse.jst.jsf.ui.internal.jspeditor.JavaElementHyperlink.java

License:Open Source License

public String getHyperlinkText() {
    //Bug 254452 - JSF hyperlink provider shows "unknown hyperlink" when in list
    final IJavaElement element = determineJavaElement();
    if (element != null) {
        final ICompilationUnit compilationUnit = (ICompilationUnit) element
                .getAncestor(IJavaElement.COMPILATION_UNIT);
        if (compilationUnit != null) {
            return NLS.bind(Messages.Hyperlink_Open_JavaType, compilationUnit.getElementName());
        }//ww  w. j av a2 s.  co m
        return Messages.Hyperlink_Open_JavaFile;
    }
    return Messages.Hyperlink_Open_JavaElement;
}

From source file:org.eclipse.linuxtools.changelog.parsers.java.JavaParser.java

License:Open Source License

/**
 * @see IParserChangeLogContrib#parseCurrentFunction(IEditorPart)
 *///from ww w . j a  v  a2 s. c  o m
public String parseCurrentFunction(IEditorInput input, int offset) throws CoreException {

    String currentElementName;
    int elementType;

    // Get the working copy and connect to input.
    IWorkingCopyManager manager = JavaUI.getWorkingCopyManager();
    manager.connect(input);

    // Retrieve the Java Element in question.
    // The following internal access is done because the getWorkingCopy() method
    // for the WorkingCopyManager returns null for StorageEditorInput, however,
    // there is a working copy available through the ICompilationUnitDocumentProvider.
    //      ICompilationUnit workingCopy = manager.getWorkingCopy(input);
    ICompilationUnitDocumentProvider x = (ICompilationUnitDocumentProvider) JavaUI.getDocumentProvider();
    // Retrieve the Java Element in question.
    ICompilationUnit workingCopy = x.getWorkingCopy(input);

    if (workingCopy == null)
        return "";

    IJavaElement method = workingCopy.getElementAt(offset);

    manager.disconnect(input);

    // no element selected
    if (method == null)
        return "";

    // Get the current element name, to test it.
    currentElementName = method.getElementName();

    // Element doesn't have a name. Can go no further.
    if (currentElementName == null)
        return "";

    // Get the Element Type to test.
    elementType = method.getElementType();

    switch (elementType) {
    case IJavaElement.METHOD:
    case IJavaElement.FIELD:
        break;
    case IJavaElement.COMPILATION_UNIT:
        return "";
    case IJavaElement.INITIALIZER:
        return STATIC_INITIALIZER_NAME;

    // So it's not a method, field, type, or static initializer. Where are we?
    default:
        IJavaElement tmpMethodType;
        if (((tmpMethodType = method.getAncestor(IJavaElement.METHOD)) == null)
                && ((tmpMethodType = method.getAncestor(IJavaElement.TYPE)) == null)) {
            return "";
        } else {
            // In a class, but not in a method. Return class name instead.
            method = tmpMethodType;
            currentElementName = method.getElementName();
        }
    }

    // Build all ancestor classes.
    // Append all ancestor class names to string

    IJavaElement tmpParent = method.getParent();
    boolean firstLoop = true;

    while (tmpParent != null) {
        IJavaElement tmpParentClass = tmpParent.getAncestor(IJavaElement.TYPE);
        if (tmpParentClass != null) {
            String tmpParentClassName = tmpParentClass.getElementName();
            if (tmpParentClassName == null)
                return "";
            currentElementName = tmpParentClassName + "." + currentElementName;
        } else {
            // cut root class name
            int rootClassPos = currentElementName.indexOf(".");
            if (rootClassPos >= 0)
                currentElementName = currentElementName.substring(rootClassPos + 1);
            if (firstLoop)
                return "";
            else
                return currentElementName;
        }
        tmpParent = tmpParentClass.getParent();
        firstLoop = false;

    }

    return "";
}

From source file:org.eclipse.linuxtools.internal.changelog.parsers.java.JavaParser.java

License:Open Source License

@Override
public String parseCurrentFunction(IEditorInput input, int offset) throws CoreException {

    String currentElementName;//ww w  .j  a va  2  s .  c  o  m
    int elementType;

    // Get the working copy and connect to input.
    IWorkingCopyManager manager = JavaUI.getWorkingCopyManager();
    manager.connect(input);

    // Retrieve the Java Element in question.
    // The following internal access is done because the getWorkingCopy()
    // method
    // for the WorkingCopyManager returns null for StorageEditorInput,
    // however,
    // there is a working copy available through the
    // ICompilationUnitDocumentProvider.
    ICompilationUnitDocumentProvider x = (ICompilationUnitDocumentProvider) JavaUI.getDocumentProvider();
    // Retrieve the Java Element in question.
    ICompilationUnit workingCopy = x.getWorkingCopy(input);

    if (workingCopy == null) {
        return "";
    }

    IJavaElement method = workingCopy.getElementAt(offset);

    manager.disconnect(input);

    // no element selected
    if (method == null) {
        return "";
    }

    // Get the current element name, to test it.
    currentElementName = method.getElementName();

    // Element doesn't have a name. Can go no further.
    if (currentElementName == null) {
        return "";
    }

    // Get the Element Type to test.
    elementType = method.getElementType();

    switch (elementType) {
    case IJavaElement.METHOD:
    case IJavaElement.FIELD:
        break;
    case IJavaElement.COMPILATION_UNIT:
        return "";
    case IJavaElement.INITIALIZER:
        return STATIC_INITIALIZER_NAME;

    // So it's not a method, field, type, or static initializer. Where
    // are we?
    default:
        IJavaElement tmpMethodType;
        if (((tmpMethodType = method.getAncestor(IJavaElement.METHOD)) == null)
                && ((tmpMethodType = method.getAncestor(IJavaElement.TYPE)) == null)) {
            return "";
        } else {
            // In a class, but not in a method. Return class name instead.
            method = tmpMethodType;
            currentElementName = method.getElementName();
        }
    }

    // Build all ancestor classes.
    // Append all ancestor class names to string

    IJavaElement tmpParent = method.getParent();
    boolean firstLoop = true;

    while (tmpParent != null) {
        IJavaElement tmpParentClass = tmpParent.getAncestor(IJavaElement.TYPE);
        if (tmpParentClass != null) {
            String tmpParentClassName = tmpParentClass.getElementName();
            if (tmpParentClassName == null) {
                return "";
            }
            currentElementName = tmpParentClassName + "." + currentElementName;
        } else {
            // cut root class name
            int rootClassPos = currentElementName.indexOf('.');
            if (rootClassPos >= 0) {
                currentElementName = currentElementName.substring(rootClassPos + 1);
            }
            if (firstLoop) {
                return "";
            } else {
                return currentElementName;
            }
        }
        tmpParent = tmpParentClass.getParent();
        firstLoop = false;

    }

    return "";
}

From source file:org.eclipse.mylyn.internal.java.ui.JavaStructureBridge.java

License:Open Source License

/**
 * Some copying from://from  w ww .  j av a2s.co  m
 * 
 * @see org.eclipse.jdt.ui.ProblemsLabelDecorator
 */
public boolean containsProblem(IInteractionElement node) {
    try {
        IJavaElement element = (IJavaElement) getObjectForHandle(node.getHandleIdentifier());
        switch (element.getElementType()) {
        case IJavaElement.JAVA_PROJECT:
        case IJavaElement.PACKAGE_FRAGMENT_ROOT:
            return getErrorTicksFromMarkers(element.getResource(), IResource.DEPTH_INFINITE, null);
        case IJavaElement.PACKAGE_FRAGMENT:
        case IJavaElement.COMPILATION_UNIT:
        case IJavaElement.CLASS_FILE:
            return getErrorTicksFromMarkers(element.getResource(), IResource.DEPTH_ONE, null);
        case IJavaElement.PACKAGE_DECLARATION:
        case IJavaElement.IMPORT_DECLARATION:
        case IJavaElement.IMPORT_CONTAINER:
        case IJavaElement.TYPE:
        case IJavaElement.INITIALIZER:
        case IJavaElement.METHOD:
        case IJavaElement.FIELD:
        case IJavaElement.LOCAL_VARIABLE:
            ICompilationUnit cu = (ICompilationUnit) element.getAncestor(IJavaElement.COMPILATION_UNIT);
            if (cu != null) {
                return getErrorTicksFromMarkers(element.getResource(), IResource.DEPTH_ONE, null);
            }
        }
    } catch (CoreException e) {
        // ignore
    }
    return false;
}

From source file:org.eclipse.mylyn.internal.java.ui.LandmarkMarkerManager.java

License:Open Source License

private LandmarkUpdateOperation createRemoveLandmarkMarkerOperation(final IInteractionElement node) {
    if (node == null) {
        return null;
    }//from   ww  w  . j  a  v  a  2s . c  o  m
    if (JavaStructureBridge.CONTENT_TYPE.equals(node.getContentType())) {
        IJavaElement element = JavaCore.create(node.getHandleIdentifier());
        if (!element.exists()) {
            return null;
        }
        if (element.getAncestor(IJavaElement.COMPILATION_UNIT) != null // stuff
                // from .class files
                && element instanceof ISourceReference) {
            try {
                IResource resource = element.getUnderlyingResource();
                LandmarkUpdateOperation runnable = new LandmarkUpdateOperation(resource) {
                    public void run(IProgressMonitor monitor) throws CoreException {
                        if (getResource() != null) {
                            try {
                                if (markerMap.containsKey(node)) {
                                    long id = markerMap.get(node);
                                    IMarker marker = getResource().getMarker(id);
                                    if (marker != null) {
                                        marker.delete();
                                    }
                                }
                            } catch (NullPointerException e) {
                                // FIXME avoid NPE
                                StatusHandler.log(new Status(IStatus.ERROR, JavaUiBridgePlugin.ID_PLUGIN,
                                        "Could not update marker", e)); //$NON-NLS-1$
                            }
                        }
                    }
                };
                return runnable;
            } catch (JavaModelException e) {
                // ignore the Java Model errors
            }
        }
    }
    return null;
}

From source file:org.eclipse.objectteams.otdt.core.ext.MarkableFactory.java

License:Open Source License

public static IMarkableJavaElement createMarkable(IJavaElement javaElement) {
    IClassFile classFile = (IClassFile) javaElement.getAncestor(IJavaElement.CLASS_FILE);
    if (classFile != null)
        return new JavaElementMarkable(classFile);
    else//from   www.j  ava  2  s. c o  m
        return new ResourceMarkable(javaElement.getResource());
}

From source file:org.eclipse.objectteams.otdt.internal.core.search.matching.ReferenceToTeamLocator.java

License:Open Source License

/**
 * A match was found, perform final check:
 * if a role was specified check the current compilation unit's first type against the role name.
 * If successful report as a type reference match regarding this first type.
 *//*from  www . jav  a 2s .  co m*/
@Override
protected void matchReportImportRef(ImportReference importRef, Binding binding, IJavaElement element,
        int accuracy, MatchLocator locator) throws CoreException {
    if (locator.encloses(element)) {
        ICompilationUnit cu = (ICompilationUnit) element.getAncestor(IJavaElement.COMPILATION_UNIT);
        if (cu != null) {
            IType[] types = cu.getTypes();
            if (types != null && types.length > 0) {
                // only now we have the info to check the role name:
                if (this.pattern.roleName != null
                        && !new String(this.pattern.roleName).equals(types[0].getElementName()))
                    return;

                int offset = importRef.sourceStart;
                int length = importRef.sourceEnd - offset + 1;
                this.match = locator.newTypeReferenceMatch(types[0], null/*binding*/, accuracy, offset, length,
                        importRef);
                if (this.match != null)
                    locator.report(this.match);
            }
        }
    }
}

From source file:org.eclipse.objectteams.otdt.internal.ui.handlers.OpenBindingEditorHandler.java

License:Open Source License

/**
 * Finds the outermost containing team for the given selection.
 * @param selection The current selection (can be null).
 * @return The best matching team for the selection, or null if no team found.
 *///from   ww w .  java 2  s.co m
protected IOTType getRootTeam(ISelection selection) {
    IOTType selectedTeam = null;
    if (!(selection instanceof IStructuredSelection))
        return null;
    Object element = ((IStructuredSelection) selection).getFirstElement();
    if (!(element instanceof IJavaElement))
        return null;
    IJavaElement jElement = (IJavaElement) element;
    ICompilationUnit cu = (ICompilationUnit) jElement.getAncestor(IType.COMPILATION_UNIT);
    if (cu == null)
        return null;
    IType type = cu.findPrimaryType();
    IOTType otType = OTModelManager.getOTElement(type);
    if (otType == null)
        return null;
    if (otType.isTeam())
        selectedTeam = otType;
    else if (otType instanceof IRoleFileType)
        selectedTeam = ((IRoleFileType) otType).getTeam();
    return selectedTeam;
}

From source file:org.eclipse.objectteams.otdt.internal.ui.wizards.NewTypeWizardPage.java

License:Open Source License

@Override
protected IJavaElement getInitialJavaElement(IStructuredSelection structuredSelection) {
    IJavaElement element = super.getInitialJavaElement(structuredSelection);
    if (element != null && element.getElementType() == IJavaElement.COMPILATION_UNIT) {
        // try to improve:
        IWorkbenchWindow window = JavaPlugin.getActiveWorkbenchWindow();
        if (window != null) {
            ISelection selection = window.getSelectionService().getSelection();
            if (selection instanceof ITextSelection) {
                ITextSelection textSelection = (ITextSelection) selection;
                try {
                    IJavaElement selected = ((ICompilationUnit) element)
                            .getElementAt(textSelection.getOffset());
                    if (selected != null) {
                        selected = selected.getAncestor(IJavaElement.TYPE);
                        if (selected != null) {
                            if (((IType) selected).isLocal())
                                selected = ((IType) selected).getDeclaringType();
                            return selected;
                        }//from   w w  w. j a  v a  2s . c  om
                    }
                } catch (JavaModelException e) {
                    /* nop */ }
            }
        }
    }
    return element;
}

From source file:org.eclipse.objectteams.otdt.internal.ui.wizards.NewTypeWizardPage.java

License:Open Source License

/**
 * initializes the package and enclosing type dialog fields
 * depending on the given initial selected IJavaElement
 * (that is the IJavaElement which was selected in the Package Explorer,
 *  when the request to open the wizard occured)
 *//*from  www . java 2s. co  m*/
protected void initPackageAndEnclosingType(IJavaElement initialSelectedElem) {
    IType potentialEnclosingType = null;
    IType typeInCU = (IType) initialSelectedElem.getAncestor(IJavaElement.TYPE);

    if (typeInCU != null) {
        if (typeInCU.getCompilationUnit() != null) {
            potentialEnclosingType = typeInCU;
        }
    } else {
        ICompilationUnit cu = (ICompilationUnit) initialSelectedElem.getAncestor(IJavaElement.COMPILATION_UNIT);
        if (cu != null) {
            potentialEnclosingType = cu.findPrimaryType();
        }
    }

    //default case
    IPackageFragment packageFragment = (IPackageFragment) initialSelectedElem
            .getAncestor(IJavaElement.PACKAGE_FRAGMENT);
    String packName = (packageFragment == null) ? "" //$NON-NLS-1$
            : packageFragment.getElementName();
    setPackageFragmentName(packName);
    setEnclosingTypeName(""); //$NON-NLS-1$

    if (potentialEnclosingType != null) {
        if (OTModelManager.hasOTElementFor(potentialEnclosingType)) {
            IOTType potentialEnclosingOTType = OTModelManager.getOTElement(potentialEnclosingType);

            boolean hasChanges = false;
            if (potentialEnclosingOTType.isTeam()) {
                handleTeamSelected(potentialEnclosingOTType);
                hasChanges = true;
            } else //if potentialEnclosingOTType.isRole()
            {
                handleRoleSelected(potentialEnclosingOTType);
                hasChanges = true;
            }

            if (hasChanges) {
            }
        } else
            try {
                if (potentialEnclosingType.isClass()) {
                    handleClassSelected(potentialEnclosingType);
                }
            } catch (JavaModelException ex) {
                OTDTUIPlugin.logException("", ex); //$NON-NLS-1$
            }
    }
}