Java Code Examples for org.eclipse.core.runtime.IPath#isValidPath()

/**
 * Gets the manifest file (as workspace resource).
 *
 * @return a file which points to the manifest
 */
public IFile getManifestFile() {
	IPath path= getManifestLocation();
	if (path.isValidPath(path.toString()) && path.segmentCount() >= 2)
		return JavaPlugin.getWorkspace().getRoot().getFile(path);
	else
		return null;
}
 

/**
 * Gets the description file (as workspace resource).
 *
 * @return a file which points to the description
 */
public IFile getDescriptionFile() {
	IPath path= getDescriptionLocation();
	if (path.isValidPath(path.toString()) && path.segmentCount() >= 2)
		return JavaPlugin.getWorkspace().getRoot().getFile(path);
	else
		return null;
}
 

/**
 * Creates a folder resource handle for the folder with the given workspace path.
 *
 * @param folderPath the path of the folder to create a handle for
 * @return the new folder resource handle
 */
private IFolder createFolderHandle(IPath folderPath) {
	if (folderPath.isValidPath(folderPath.toString()) && folderPath.segmentCount() >= 2)
		return JavaPlugin.getWorkspace().getRoot().getFolder(folderPath);
	else
		return null;
}
 

private static void resolvedChainedLibraries(IPath jarPath, HashSet visited, ArrayList result) {
	if (visited.contains( jarPath))
		return;
	visited.add(jarPath);
	JavaModelManager manager = JavaModelManager.getJavaModelManager();
	if (manager.isNonChainingJar(jarPath))
		return;
	List calledFileNames = getCalledFileNames(jarPath);
	if (calledFileNames == null) {
		manager.addNonChainingJar(jarPath);
	} else {
		Iterator calledFilesIterator = calledFileNames.iterator();
		IPath directoryPath = jarPath.removeLastSegments(1);
		while (calledFilesIterator.hasNext()) {
			String calledFileName = (String) calledFilesIterator.next();
			if (!directoryPath.isValidPath(calledFileName)) {
				if (JavaModelManager.CP_RESOLVE_VERBOSE_FAILURE) {
					Util.verbose("Invalid Class-Path entry " + calledFileName + " in manifest of jar file: " + jarPath.toOSString()); //$NON-NLS-1$ //$NON-NLS-2$
				}
			} else {
				IPath calledJar = directoryPath.append(new Path(calledFileName));
				// Ignore if segment count is Zero (https://bugs.eclipse.org/bugs/show_bug.cgi?id=308150)
				if (calledJar.segmentCount() == 0) {
					if (JavaModelManager.CP_RESOLVE_VERBOSE_FAILURE) {
						Util.verbose("Invalid Class-Path entry " + calledFileName + " in manifest of jar file: " + jarPath.toOSString()); //$NON-NLS-1$ //$NON-NLS-2$
					}
					continue;
				}
				resolvedChainedLibraries(calledJar, visited, result);
				result.add(calledJar);
			}
		}
	}
}
 

/**
 * Returns whether this page's controls currently all contain valid
 * values.
 *
 * @return <code>true</code> if all controls are valid, and
 *   <code>false</code> if at least one is invalid
 */
protected boolean validatePage() {
    IWorkspace workspace = ResourcesPlugin.getWorkspace();

    String projectFieldContents = getProjectNameFieldValue();
    if (projectFieldContents.equals("")) { //$NON-NLS-1$
        setErrorMessage(null);
        setMessage("Project name is empty");
        return false;
    }

    IStatus nameStatus = workspace.validateName(projectFieldContents, IResource.PROJECT);
    if (!nameStatus.isOK()) {
        setErrorMessage(nameStatus.getMessage());
        return false;
    }

    String locationFieldContents = getProjectLocationFieldValue();

    if (locationFieldContents.equals("")) { //$NON-NLS-1$
        setErrorMessage(null);
        setMessage("Project location is empty");
        return false;
    }

    IPath path = new Path(""); //$NON-NLS-1$
    if (!path.isValidPath(locationFieldContents)) {
        setErrorMessage("Project location is not valid");
        return false;
    }

    //commented out. See comments on https://sourceforge.net/tracker/?func=detail&atid=577329&aid=1798364&group_id=85796
    //        if (!useDefaults
    //                && Platform.getLocation().isPrefixOf(
    //                        new Path(locationFieldContents))) {
    //            setErrorMessage("Default location error");
    //            return false;
    //        }

    IProject projectHandle = getProjectHandle();
    if (projectHandle.exists()) {
        setErrorMessage("Project already exists");
        return false;
    }

    if (!useDefaults) {
        path = getLocationPath();
        if (path.equals(workspace.getRoot().getLocation())) {
            setErrorMessage("Project location cannot be the workspace location.");
            return false;
        }
    }

    if (isDotProjectFileInLocation()) {
        setErrorMessage(".project found in: " + getLocationPath().toOSString()
                + " (use the Import Project wizard instead).");
        return false;
    }

    if (getProjectInterpreter() == null) {
        setErrorMessage("Project interpreter not specified");
        return false;
    }

    setErrorMessage(null);
    setMessage(null);

    // Look for existing Python files in the destination folder.
    File locFile = (!useDefaults ? getLocationPath() : getLocationPath().append(projectFieldContents)).toFile();
    PyFileListing pyFileListing = PythonPathHelper.getModulesBelow(locFile, null, new ArrayList<>());
    if (pyFileListing != null) {
        boolean foundInit = false;
        Collection<PyFileInfo> modulesBelow = pyFileListing.getFoundPyFileInfos();
        for (PyFileInfo fileInfo : modulesBelow) {
            // Only notify existence of init files in the top-level directory.
            if (PythonPathHelper.isValidInitFile(fileInfo.getFile().getPath())
                    && fileInfo.getFile().getParentFile().equals(locFile)) {
                setMessage(
                        "Project location contains an __init__.py file. Consider using the location's parent folder instead.");
                foundInit = true;
                break;
            }
        }
        if (!foundInit && modulesBelow.size() > 0) {
            setMessage("Project location contains existing Python files. The created project will include them.");
        }
    }

    return true;
}
 

/**
 * Creates a file resource handle for the file with the given workspace path.
 * This method does not create the file resource; this is the responsibility
 * of <code>createFile</code>.
 *
 * @param filePath the path of the file resource to create a handle for
 * @return the new file resource handle
 */
protected IFile createFileHandle(IPath filePath) {
	if (filePath.isValidPath(filePath.toString()) && filePath.segmentCount() >= 2)
		return ResourcesPlugin.getWorkspace().getRoot().getFile(filePath);
	else
		return null;
}
 

/**
 * Creates a file resource handle for the file with the given workspace path.
 * This method does not create the file resource; this is the responsibility
 * of <code>createFile</code>.
 *
 * @param filePath the path of the file resource to create a handle for
 * @return the new file resource handle
 */
protected IFile createFileHandle(IPath filePath) {
	if (filePath.isValidPath(filePath.toString()) && filePath.segmentCount() >= 2)
		return JavaPlugin.getWorkspace().getRoot().getFile(filePath);
	else
		return null;
}
 

/**
 * Creates a file resource handle for the file with the given workspace path.
 * This method does not create the file resource; this is the responsibility
 * of <code>createFile</code>.
 *
 * @param filePath the path of the file resource to create a handle for
 * @return the new file resource handle
 */
protected IFile createFileHandle(IPath filePath) {
	if (filePath.isValidPath(filePath.toString()) && filePath.segmentCount() >= 2)
		return JavaPlugin.getWorkspace().getRoot().getFile(filePath);
	else
		return null;
}