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

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

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Introduction

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

Prototype

boolean exists();

Source Link

Document

Returns whether this Java element exists in the model.

Usage

From source file:org.eclipse.e4.xwt.tools.ui.designer.wizards.ExternalizeStringsWizard.java

License:Open Source License

private void getDefaultAccessorContents() {
    IFile inputFile = designer.getFile();

    IContainer container = inputFile.getParent();
    IJavaElement javaElement = JavaCore.create(container);
    IPackageFragmentRoot defaultRoot = null;
    if (javaElement != null && javaElement.exists()) {
        IJavaProject javaProject = JavaCore.create(inputFile.getProject());
        try {/*from w w w  .  j a  v a2s.  co  m*/
            IPackageFragmentRoot fragmentRoot[] = javaProject.getAllPackageFragmentRoots();
            for (int i = 0; i < fragmentRoot.length; i++) {
                if (fragmentRoot[i].getKind() == IPackageFragmentRoot.K_SOURCE) {
                    defaultRoot = fragmentRoot[i];
                    for (IJavaElement element : defaultRoot.getChildren()) {
                        if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
                            javaElement = element;
                        }
                    }
                    break;
                }
            }
        } catch (JavaModelException e) {
            e.printStackTrace();
        }
    }
    if (javaElement == null || !(javaElement instanceof IPackageFragment)) {
        String projectName = inputFile.getProject().getName();
        externalizeStringsWizardPage.setErrorMessage("The project " + projectName + " has not source folder.");
        return;
    }

    externalizeStringsWizardPage.setDefaultRoot(defaultRoot);
    externalizeStringsWizardPage.setDefaultFolder(defaultRoot.getResource().getFullPath().toString());
    externalizeStringsWizardPage.setDefaultPackage(javaElement.getElementName());
}

From source file:org.eclipse.jdt.internal.core.CopyResourceElementsOperation.java

License:Open Source License

/**
 * @see MultiOperation//w ww .j  a  v  a 2s. c  o m
 */
protected void verify(IJavaElement element) throws JavaModelException {
    if (element == null || !element.exists())
        error(IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, element);

    if (element.isReadOnly() && (isRename() || isMove()))
        error(IJavaModelStatusConstants.READ_ONLY, element);

    IResource resource = ((JavaElement) element).resource();
    if (resource instanceof IFolder) {
        if (resource.isLinked()) {
            error(IJavaModelStatusConstants.INVALID_RESOURCE, element);
        }
    }

    int elementType = element.getElementType();

    if (elementType == IJavaElement.COMPILATION_UNIT) {
        org.eclipse.jdt.internal.core.CompilationUnit compilationUnit = (org.eclipse.jdt.internal.core.CompilationUnit) element;
        if (isMove() && compilationUnit.isWorkingCopy() && !compilationUnit.isPrimary())
            error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
    } else if (elementType != IJavaElement.PACKAGE_FRAGMENT) {
        error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
    }

    JavaElement dest = (JavaElement) getDestinationParent(element);
    verifyDestination(element, dest);
    if (this.renamings != null) {
        verifyRenaming(element);
    }
}

From source file:org.eclipse.jst.jsf.common.ui.internal.dialogs.ResourceOnClasspathDialog.java

License:Open Source License

protected Object findInputElement() {
    Object input = ResourcesPlugin.getWorkspace();
    if (input instanceof IWorkspace) {
        return JavaCore.create(((IWorkspace) input).getRoot());
    } else if (input instanceof IContainer) {
        IJavaElement element = JavaCore.create((IContainer) input);
        if (element != null && element.exists()) {
            return element;
        }/*from   w  w w .j ava 2s .  c om*/
        return input;
    }
    return JavaCore.create(ResourcesPlugin.getWorkspace().getRoot());
}

From source file:org.eclipse.jst.jsp.ui.internal.hyperlink.XMLJavaHyperlinkDetector.java

License:Open Source License

private IHyperlink createJavaElementHyperlink(IJavaProject javaProject, String elementName, IRegion region) {
    if (javaProject != null && javaProject.exists()) {
        try {/*  w w w .  jav  a  2  s  .  co  m*/
            IJavaElement element = javaProject.findType(elementName);
            if (element != null && element.exists()) {
                return new JavaElementHyperlink(region, element);
            }
        } catch (JavaModelException e) {
            // bad name, no link
        }
    }
    return null;
}

From source file:org.eclipse.jst.pagedesigner.ui.common.ResourceOnClasspathDialog.java

License:Open Source License

protected Object findInputElement() {
    Object input = ResourcesPlugin.getWorkspace();
    if (input instanceof IWorkspace) {
        return JavaCore.create(((IWorkspace) input).getRoot());
    } else if (input instanceof IContainer) {
        IJavaElement element = JavaCore.create((IContainer) input);
        if (element != null && element.exists())
            return element;
        return input;
    }/*from ww w .j a v  a 2  s . co m*/
    return JavaCore.create(ResourcesPlugin.getWorkspace().getRoot());
}

From source file:org.eclipse.jst.servlet.ui.internal.navigator.WebJavaContentProvider.java

License:Open Source License

private void cleanJavaContribution(Set theCurrentChildren) {
    IJavaElement element = null;
    for (Iterator iter = theCurrentChildren.iterator(); iter.hasNext();) {
        Object child = iter.next();
        if (child instanceof IResource && ((element = JavaCore.create((IResource) child)) != null)
                && element.exists())
            iter.remove();/*from   w  w w .  j a va 2 s  . c  om*/
        else if (child instanceof IJavaElement)
            iter.remove();
        else if (INTERNAL_CONTAINER_CLASS != null && INTERNAL_CONTAINER_CLASS.isInstance(child))
            iter.remove();
    }
}

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

License:Open Source License

@Override
public boolean canBeLandmark(String handle) {
    IJavaElement element = (IJavaElement) getObjectForHandle(handle);
    if ((element instanceof IMember || element instanceof IType) && element.exists()) {
        return true;
    } else {//  www  .  j a  v  a 2s  . co m
        return false;
    }
}

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

License:Open Source License

@Override
public void open(IInteractionElement node) {
    IJavaElement javaElement = JavaCore.create(node.getHandleIdentifier());
    if (javaElement == null || !javaElement.exists()) {
        return;//from  ww  w. ja v  a 2  s  . c  o  m
    }

    try {
        IEditorPart part = JavaUI.openInEditor(javaElement);
        JavaUI.revealInEditor(part, javaElement);
    } catch (PartInitException e) {
        StatusHandler.log(new Status(IStatus.ERROR, JavaUiBridgePlugin.ID_PLUGIN,
                NLS.bind("Failed to open editor for: {0}", node.getHandleIdentifier()), e)); //$NON-NLS-1$
    } catch (JavaModelException e) {
        StatusHandler.log(new Status(IStatus.ERROR, JavaUiBridgePlugin.ID_PLUGIN,
                NLS.bind("Failed to open editor for: {0}", node.getHandleIdentifier()), e)); //$NON-NLS-1$
    }
}

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

License:Open Source License

private LandmarkUpdateOperation createAddLandmarkMarkerOperation(final IInteractionElement node) {
    if (node == null || node.getContentType() == null) {
        return null;
    }// w w w .  jav  a2 s.c o m
    if (JavaStructureBridge.CONTENT_TYPE.equals(node.getContentType())) {
        final IJavaElement element = JavaCore.create(node.getHandleIdentifier());
        if (!element.exists()) {
            return null;
        }
        if (element instanceof IMember) {
            try {
                final ISourceRange range = ((IMember) element).getNameRange();
                IResource resource = element.getUnderlyingResource();
                if (resource instanceof IFile) {
                    LandmarkUpdateOperation runnable = new LandmarkUpdateOperation(resource) {
                        public void run(IProgressMonitor monitor) throws CoreException {
                            IMarker marker = getResource().createMarker(ID_MARKER_LANDMARK);
                            if (marker != null && range != null) {
                                marker.setAttribute(IMarker.CHAR_START, range.getOffset());
                                marker.setAttribute(IMarker.CHAR_END, range.getOffset() + range.getLength());
                                marker.setAttribute(IMarker.MESSAGE, "Mylyn Landmark");
                                marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_INFO);
                                markerMap.put(node, marker.getId());
                            }
                        }
                    };
                    return runnable;
                }
            } catch (JavaModelException e) {
                StatusHandler.log(
                        new Status(IStatus.ERROR, JavaUiBridgePlugin.ID_PLUGIN, "Could not update marker", e)); //$NON-NLS-1$
            }
        }
    }
    return null;
}

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 w  w w . j  a v a2  s .  com*/
    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;
}