Example usage for org.eclipse.jdt.core IJavaProject findElement

List of usage examples for org.eclipse.jdt.core IJavaProject findElement

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Introduction

In this page you can find the example usage for org.eclipse.jdt.core IJavaProject findElement.

Prototype

IJavaElement findElement(IPath path) throws JavaModelException;

Source Link

Document

Returns the IJavaElement corresponding to the given classpath-relative path, or null if no such IJavaElement is found.

Usage

From source file:org.eclipse.che.jdt.util.JavaModelUtil.java

License:Open Source License

/**
 * Finds a type container by container name. The returned element will be of type
 * <code>IType</code> or a <code>IPackageFragment</code>. <code>null</code> is returned if the
 * type container could not be found.// w w  w  . j  a  va  2  s. c  o  m
 *
 * @param jproject
 *         The Java project defining the context to search
 * @param typeContainerName
 *         A dot separated name of the type container
 * @return returns the container
 * @throws JavaModelException
 *         thrown when the project can not be accessed
 * @see #getTypeContainerName(IType)
 */
public static IJavaElement findTypeContainer(IJavaProject jproject, String typeContainerName)
        throws JavaModelException {
    // try to find it as type
    IJavaElement result = jproject.findType(typeContainerName);
    if (result == null) {
        // find it as package
        IPath path = new Path(typeContainerName.replace('.', '/'));
        result = jproject.findElement(path);
        if (!(result instanceof IPackageFragment)) {
            result = null;
        }

    }
    return result;
}

From source file:org.eclipse.che.plugin.java.testing.AbstractJavaTestRunner.java

License:Open Source License

private ICompilationUnit findCompilationUnitByPath(IJavaProject javaProject, String filePath) {
    try {/*  w w w  . j av a  2  s  .  c om*/
        IClasspathEntry[] resolvedClasspath = javaProject.getResolvedClasspath(false);
        IPath packageRootPath = null;
        for (IClasspathEntry classpathEntry : resolvedClasspath) {
            if (filePath.startsWith(classpathEntry.getPath().toOSString())) {
                packageRootPath = classpathEntry.getPath();
                break;
            }
        }

        if (packageRootPath == null) {
            throw getRuntimeException(filePath);
        }

        String packagePath = packageRootPath.toOSString();
        if (!packagePath.endsWith("/")) {
            packagePath += '/';
        }

        String pathToClass = filePath.substring(packagePath.length());
        IJavaElement element = javaProject.findElement(new Path(pathToClass));
        if (element != null && element.getElementType() == IJavaElement.COMPILATION_UNIT) {
            return (ICompilationUnit) element;
        } else {
            throw getRuntimeException(filePath);
        }
    } catch (JavaModelException e) {
        throw new RuntimeException("Can't find Compilation Unit.", e);
    }
}

From source file:org.eclipse.jst.j2ee.internal.web.deployables.WebDeployableArtifactUtil.java

License:Open Source License

public static String getClassNameForType(IResource resource, String superType) {
    if (resource == null)
        return null;

    try {/*from   w w w . jav  a2  s. c  om*/
        IProject project = resource.getProject();
        IPath path = resource.getFullPath();
        if (!project.hasNature(JavaCore.NATURE_ID) || path == null)
            return null;

        IJavaProject javaProject = (IJavaProject) project.getNature(JavaCore.NATURE_ID);
        if (!javaProject.isOpen())
            javaProject.open(new NullProgressMonitor());

        // output location may not be on classpath
        IPath outputPath = javaProject.getOutputLocation();
        if (outputPath != null && "class".equals(path.getFileExtension()) && outputPath.isPrefixOf(path)) { //$NON-NLS-1$
            int count = outputPath.segmentCount();
            path = path.removeFirstSegments(count);
        }

        // remove initial part of classpath
        IClasspathEntry[] classPathEntry = javaProject.getResolvedClasspath(true);
        if (classPathEntry != null) {
            int size = classPathEntry.length;
            for (int i = 0; i < size; i++) {
                IPath classPath = classPathEntry[i].getPath();
                if (classPath.isPrefixOf(path)) {
                    int count = classPath.segmentCount();
                    path = path.removeFirstSegments(count);
                    i += size;
                }
            }
        }

        // get java element
        IJavaElement javaElement = javaProject.findElement(path);

        IType[] types = getTypes(javaElement);
        if (types != null) {
            int size2 = types.length;
            for (int i = 0; i < size2; i++) {
                if (hasSuperclass(types[i], superType))
                    return types[i].getFullyQualifiedName();
            }
        }
        return null;
    } catch (Exception e) {
        return null;
    }
}

From source file:org.eclipse.jst.jsf.common.ui.internal.dialogfield.JavaClassWizard.java

License:Open Source License

public boolean performFinish() {
    if (_mainPage.getPackageText() != null && _mainPage.getPackageText().length() > 0) {
        StringBuffer buffer = new StringBuffer(_mainPage.getPackageText());
        buffer.append(".");//$NON-NLS-1$
        buffer.append(_mainPage.getTypeName());
        _className = buffer.toString();// www. j ava 2 s . c  o m
    } else {
        _className = _mainPage.getTypeName();
    }
    _classArgs = _mainPage.getClassArgs();
    IRunnableWithProgress op = new WorkspaceModifyOperation() {
        protected void execute(IProgressMonitor monitor)
                throws CoreException, InvocationTargetException, InterruptedException {
            _mainPage.createType(monitor);
            IResource resource = _mainPage.getModifiedResource();
            if (resource != null && _autoOpenResource) {
                selectAndReveal(resource);
                if (_project.hasNature(JavaCore.NATURE_ID)) {
                    IJavaProject jProject = JavaCore.create(_project);
                    IJavaElement jElement = jProject
                            .findElement(resource.getProjectRelativePath().removeFirstSegments(1));
                    if (jElement != null) {
                        JavaUI.openInEditor(jElement);
                    }
                } else if (resource instanceof IFile) {
                    IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
                    IDE.openEditor(page, (IFile) resource, true);
                }
            }
        }

    };
    try {
        getContainer().run(false, true, op);
    } catch (InvocationTargetException e) {
        e.printStackTrace(); // PDEPlugin.logException(e);
    } catch (InterruptedException e) {
        e.printStackTrace();// PDEPlugin.logException(e);
    }
    return true;
}

From source file:org.eclipse.jst.jsf.common.ui.internal.dialogfield.JavaUIHelper.java

License:Open Source License

/**
 * @param project/*from w w w  .j av a 2  s  . com*/
 * @param className
 */
static void doOpenClass(IProject project, String className) {
    String path = className.replace('.', '/') + ".java"; //$NON-NLS-1$
    try {
        if (project.hasNature(JavaCore.NATURE_ID)) {
            IJavaProject javaProject = JavaCore.create(project);
            IJavaElement result = javaProject.findElement(new Path(path));
            JavaUI.openInEditor(result);
        } else {
            IResource resource = project.findMember(new Path(path));
            if (resource instanceof IFile) {
                IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
                IDE.openEditor(page, (IFile) resource, true);
            }
        }
    } catch (PartInitException e) {
        e.printStackTrace();// PDEPlugin.logException(e);
    } catch (JavaModelException e) {
        e.printStackTrace();// Display.getCurrent().beep();
    } catch (CoreException e) {
        e.printStackTrace();// PDEPlugin.logException(e);
    }
}

From source file:org.eclipse.jst.jsf.common.ui.internal.dialogfield.JavaUIHelper.java

License:Open Source License

/**
 * @param project//w  w w.j a v a2 s .c o  m
 * @param className
 * @return true if the class exists in project
 */
static boolean doesClassExist(IProject project, String className) {
    String path = className.replace('.', '/') + ".java"; //$NON-NLS-1$
    try {
        if (project.hasNature(JavaCore.NATURE_ID)) {
            IJavaProject javaProject = JavaCore.create(project);

            IJavaElement result = javaProject.findElement(new Path(path));
            return result != null;
        }
        IResource resource = project.findMember(new Path(path));
        return resource != null;
    } catch (JavaModelException e) {
        return false;
    } catch (CoreException e) {
        return false;
    }
}

From source file:org.eclipse.jst.jsf.common.ui.internal.utils.PathUtil.java

License:Open Source License

/**
 * @param javaProject//  www.  j  a  v  a  2s .c o m
 * @param parent
 * @return the IPath for a a classpath object (?)
 */
public static IPath getPathOnClasspath(IJavaProject javaProject, Object parent) {
    IPath result = null;
    if (javaProject == null || parent == null) {
        return new Path(""); //$NON-NLS-1$
    }
    IClasspathEntry[] entries = javaProject.readRawClasspath();
    IPath classPath = null;
    if (parent instanceof IResource) {
        if (((javaProject != null) && !javaProject.isOnClasspath((IResource) parent))) {
            return new Path(""); //$NON-NLS-1$
        }
        if (parent instanceof IFile) {
            IPath elementPath = ((IFile) parent).getFullPath();
            if (((IFile) parent).getFileExtension().equalsIgnoreCase(IFileFolderConstants.EXT_PROPERTIES)) {
                int machings = 0;
                try {
                    for (int i = 0; i < entries.length; i++) {
                        // Determine whether on this classentry's path
                        int n = entries[i].getPath().matchingFirstSegments(elementPath);
                        if (n > machings) {
                            // Get package name
                            machings = n;
                            classPath = elementPath.removeFirstSegments(machings).removeLastSegments(1);
                        }
                    }

                    // Not on the classpath?
                    if (classPath == null) {
                        return null;
                    } else if (classPath.segmentCount() > 0) {
                        IJavaElement element = javaProject.findElement(classPath);
                        if (element != null) {
                            IPath path = element.getPath();
                            if (path != null) {
                                IPath path1 = path.removeFirstSegments(machings);

                                String fileName = ((IFile) parent).getName();
                                if (fileName != null) {
                                    result = path1.append(fileName);
                                }
                            }
                        }

                    } else {
                        result = ((IFile) parent).getFullPath().removeFirstSegments(machings);
                    }
                } catch (Exception e) {
                    return null;
                }
            }
        }
    } else if (parent instanceof IJarEntryResource) {
        IPath elementPath = ((IJarEntryResource) parent).getFullPath();
        if (elementPath.getFileExtension().equalsIgnoreCase(IFileFolderConstants.EXT_PROPERTIES)) {
            result = elementPath;
        }
    }
    if (result != null) {
        return result;
    }
    return new Path(""); //$NON-NLS-1$
}

From source file:org.eclipse.jst.pagedesigner.utils.JavaUtil.java

License:Open Source License

/**
 * /*from  w  w  w.ja  v a 2s . com*/
 * @param javaProject
 * @param parent
 * @return the path in javaProject or new Path("") if not found on a class path
 * @author mengbo
 */
public static IPath getPathOnClasspath(IJavaProject javaProject, Object parent) {
    IPath result = null;
    if (javaProject == null || parent == null) {
        return new Path(""); //$NON-NLS-1$
    }
    IClasspathEntry[] entries = javaProject.readRawClasspath();
    IPath classPath = null;
    if (parent instanceof IResource) {
        if (((javaProject != null) && !javaProject.isOnClasspath((IResource) parent))) {
            return new Path(""); //$NON-NLS-1$
        }
        if (parent instanceof IFile) {
            IPath elementPath = ((IFile) parent).getFullPath();
            if (((IFile) parent).getFileExtension().equalsIgnoreCase(IFileFolderConstants.EXT_PROPERTIES)) {
                int machings = 0;
                try {
                    for (int i = 0; i < entries.length; i++) {
                        // Determine whether on this classentry's path
                        machings = entries[i].getPath().matchingFirstSegments(elementPath);
                        if (machings > 0) {
                            // Get package name
                            classPath = elementPath.removeFirstSegments(machings).removeLastSegments(1);
                            break;
                        }
                    }
                    // Not on the classpath?
                    if (classPath == null) {
                        return null;
                    } else if (classPath.segmentCount() > 0)
                        result = javaProject.findElement(classPath).getPath().removeFirstSegments(machings)
                                .append(((IFile) parent).getName());
                    else
                        result = ((IFile) parent).getFullPath().removeFirstSegments(machings);
                } catch (Exception e) {
                    // Error.DesignerPropertyTool.NatureQuerying = Error in
                    // project java nature querying
                    PDPlugin.getLogger(JavaUtil.class).error("Error.DesignerPropertyTool.NatureQuerying", e); //$NON-NLS-1$
                    return null;
                }
            }
        }
    } else if (parent instanceof IJarEntryResource) {
        IPath elementPath = ((IJarEntryResource) parent).getFullPath();
        if (elementPath.getFileExtension().equalsIgnoreCase(IFileFolderConstants.EXT_PROPERTIES)) {
            result = elementPath;
        }
    }
    if (result != null) {
        return result;
    }
    return new Path(""); //$NON-NLS-1$
}

From source file:org.eclipse.pde.api.tools.util.tests.ApiBaselineManagerTests.java

License:Open Source License

/**
 * Tests that removing a source file from an API aware project causes the
 * workspace description to be updated/*from   w ww  . j a  va  2s . c  o  m*/
 */
public void testWPUpdateSourceRemoved() throws Exception {
    IJavaProject project = getTestingProject();
    assertNotNull("The testing project must exist", project); //$NON-NLS-1$
    IPackageFragmentRoot root = project.findPackageFragmentRoot(
            new Path(project.getElementName()).append(ProjectUtils.SRC_FOLDER).makeAbsolute());
    assertNotNull("the 'src' package fragment root must exist", root); //$NON-NLS-1$
    assertTestSource(root, TESTING_PACKAGE, "TestClass1"); //$NON-NLS-1$
    IJavaElement element = project.findElement(new Path("a/b/c/TestClass1.java")); //$NON-NLS-1$
    assertNotNull("the class a.b.c.TestClass1 must exist in the project", element); //$NON-NLS-1$
    element.getResource().delete(true, new NullProgressMonitor());
    IApiDescription desc = getTestProjectApiDescription();
    assertNotNull("the testing project api description must exist", desc); //$NON-NLS-1$
    IApiAnnotations annot = desc.resolveAnnotations(Factory.typeDescriptor("a.b.c.TestClass1")); //$NON-NLS-1$
    assertNull("the annotations for a.b.c.TestClass1 should no longer be present", annot); //$NON-NLS-1$
}

From source file:org.eclipse.pde.api.tools.util.tests.ApiBaselineManagerTests.java

License:Open Source License

/**
 * Tests that making Javadoc changes to the source file TestClass2 cause the
 * workspace baseline to be updated.//from   w  w w  .  j  a  va 2s  . co m
 * 
 * This test adds a @noinstantiate tag to the source file TestClass2
 */
public void testWPUpdateSourceTypeChanged() throws Exception {
    IJavaProject project = getTestingProject();
    assertNotNull("The testing project must exist", project); //$NON-NLS-1$
    IPackageFragmentRoot root = project.findPackageFragmentRoot(
            new Path(project.getElementName()).append(ProjectUtils.SRC_FOLDER).makeAbsolute());
    assertNotNull("the 'src' package fragment root must exist", root); //$NON-NLS-1$
    NullProgressMonitor monitor = new NullProgressMonitor();
    IPackageFragment fragment = root.getPackageFragment("a.b.c"); //$NON-NLS-1$
    FileUtils.importFileFromDirectory(SRC_LOC.append("TestClass2.java").toFile(), fragment.getPath(), monitor); //$NON-NLS-1$
    ICompilationUnit element = (ICompilationUnit) project.findElement(new Path("a/b/c/TestClass2.java")); //$NON-NLS-1$
    assertNotNull("TestClass2 must exist in the test project", element); //$NON-NLS-1$
    updateTagInSource(element, "TestClass2", null, "@noinstantiate", false); //$NON-NLS-1$ //$NON-NLS-2$
    IApiDescription desc = getTestProjectApiDescription();
    assertNotNull("the testing project api description must exist", desc); //$NON-NLS-1$
    IApiAnnotations annot = desc.resolveAnnotations(Factory.typeDescriptor("a.b.c.TestClass2")); //$NON-NLS-1$
    assertNotNull("the annotations for a.b.c.TestClass2 cannot be null", annot); //$NON-NLS-1$
    assertTrue("there must be a noinstantiate setting for TestClass2", //$NON-NLS-1$
            (annot.getRestrictions() & RestrictionModifiers.NO_INSTANTIATE) != 0);
    assertTrue("there must be a noextend setting for TestClass2", //$NON-NLS-1$
            (annot.getRestrictions() & RestrictionModifiers.NO_EXTEND) != 0);
}