Java Code Examples for org.eclipse.jdt.core.IPackageFragment#getAncestor()

protected void setPackageName(NewTypeWizardPage page, URI contextUri, String packageName) {
	IJavaProject javaProject = getJavaProject(contextUri);
	String path = contextUri.trimSegments(1).toPlatformString(true);
	try {
		if(javaProject != null) {
			IPackageFragment contextPackageFragment = javaProject.findPackageFragment(new Path(path));
			if (contextPackageFragment != null) {
				IPackageFragmentRoot root = (IPackageFragmentRoot) contextPackageFragment
						.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
				IPackageFragment packageFragment;
				if(!isEmpty(packageName)) {
					packageFragment = root.getPackageFragment(packageName);
				} else {
					packageFragment = contextPackageFragment;
				}
				page.setPackageFragment(packageFragment, true);
				page.setPackageFragmentRoot(root, true);
			}
		}
	} catch (JavaModelException e) {
		LOG.error("Could not find package for " + path, e);
	}
}
 

/**
 * Gets a reader for an package fragment's Javadoc comment content from the source attachment.
 * The content does contain only the text from the comment without the Javadoc leading star characters.
 * Returns <code>null</code> if the package fragment does not contain a Javadoc comment or if no source is available.
 * @param fragment The package fragment to get the Javadoc of.
 * @return Returns a reader for the Javadoc comment content or <code>null</code> if the member
 * does not contain a Javadoc comment or if no source is available
 * @throws JavaModelException is thrown when the package fragment's javadoc can not be accessed
 * @since 3.4
 */
private static Reader internalGetContentReader(IPackageFragment fragment) throws JavaModelException {
	IPackageFragmentRoot root= (IPackageFragmentRoot) fragment.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);

	//1==> Handle the case when the documentation is present in package-info.java or package-info.class file
	boolean isBinary= root.getKind() == IPackageFragmentRoot.K_BINARY;
	ITypeRoot packageInfo;
	if (isBinary) {
		packageInfo= fragment.getClassFile(PACKAGE_INFO_CLASS);
	} else {
		packageInfo= fragment.getCompilationUnit(PACKAGE_INFO_JAVA);
	}
	if (packageInfo != null && packageInfo.exists()) {
		String source = packageInfo.getSource();
		//the source can be null for some of the class files
		if (source != null) {
			Javadoc javadocNode = getPackageJavadocNode(fragment, source);
			if (javadocNode != null) {
				int start = javadocNode.getStartPosition();
				int length = javadocNode.getLength();
				return new JavaDocCommentReader(source, start, start + length - 1);
			}
		}
	}
	return null;
}
 

private Object getPackageFragmentObjectToOpen(IPackageFragment packageFragment) throws JavaModelException {
	ITypeRoot typeRoot= null;
	IPackageFragmentRoot root= (IPackageFragmentRoot) packageFragment.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
	if (root.getKind() == IPackageFragmentRoot.K_BINARY)
		typeRoot= (packageFragment).getClassFile(JavaModelUtil.PACKAGE_INFO_CLASS);
	else
		typeRoot= (packageFragment).getCompilationUnit(JavaModelUtil.PACKAGE_INFO_JAVA);
	if (typeRoot.exists())
		return typeRoot;
	
	Object[] nonJavaResources= (packageFragment).getNonJavaResources();
	for (Object nonJavaResource : nonJavaResources) {
		if (nonJavaResource instanceof IFile) {
			IFile file= (IFile) nonJavaResource;
			if (file.exists() && JavaModelUtil.PACKAGE_HTML.equals(file.getName())) {
				return file;
			}
		}
	}
	return packageFragment;
}
 

public static ResourceMapping create(final IPackageFragment pack) {
	// test if in an archive
	IPackageFragmentRoot root= (IPackageFragmentRoot)pack.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
	if (!root.isArchive() && !root.isExternal()) {
		return new PackageFragmentResourceMapping(pack);
	}
	return null;
}
 

public static ResourceMapping create(final IPackageFragment pack) {
	// test if in an archive
	IPackageFragmentRoot root= (IPackageFragmentRoot)pack.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
	if (!root.isArchive() && !root.isExternal()) {
		return new PackageFragmentResourceMapping(pack);
	}
	return null;
}
 

public static IEditorPart openDeclaration(IJavaElement element) throws PartInitException, JavaModelException {
	if (!(element instanceof IPackageFragment)) {
		return JavaUI.openInEditor(element);
	}
	
	IPackageFragment packageFragment= (IPackageFragment) element;
	ITypeRoot typeRoot;
	IPackageFragmentRoot root= (IPackageFragmentRoot) packageFragment.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
	if (root.getKind() == IPackageFragmentRoot.K_BINARY) {
		typeRoot= packageFragment.getClassFile(JavaModelUtil.PACKAGE_INFO_CLASS);
	} else {
		typeRoot= packageFragment.getCompilationUnit(JavaModelUtil.PACKAGE_INFO_JAVA);
	}

	// open the package-info file in editor if one exists
	if (typeRoot.exists())
		return JavaUI.openInEditor(typeRoot);

	// open the package.html file in editor if one exists
	Object[] nonJavaResources= packageFragment.getNonJavaResources();
	for (Object nonJavaResource : nonJavaResources) {
		if (nonJavaResource instanceof IFile) {
			IFile file= (IFile) nonJavaResource;
			if (file.exists() && JavaModelUtil.PACKAGE_HTML.equals(file.getName())) {
				return EditorUtility.openInEditor(file, true);
			}
		}
	}

	// select the package in the Package Explorer if there is no associated package Javadoc file
	PackageExplorerPart view= (PackageExplorerPart) JavaPlugin.getActivePage().showView(JavaUI.ID_PACKAGES);
	view.tryToReveal(packageFragment);
	return null;
}
 

/** Replies the given resource is a test resource according to the Java or Maven standard.
 *
 * @param resource the resource to test.
 * @return {@link Boolean#TRUE} if the resource is a test resource. {@link Boolean#FALSE}
 *     if the resource is not a test resource. {@code null} if the detector cannot determine
 *     the type of the resource.
 */
@SuppressWarnings("checkstyle:nestedifdepth")
protected static Boolean isJavaOrMavenTestResource(Resource resource) {
	final URI uri = resource.getURI();
	if (uri.isPlatformResource()) {
		final String platformString = uri.toPlatformString(true);
		final IResource iresource = ResourcesPlugin.getWorkspace().getRoot().findMember(platformString);
		if (iresource != null) {
			final IProject project = iresource.getProject();
			final IJavaProject javaProject = JavaCore.create(project);
			try {
				final IPackageFragment packageFragment = javaProject.findPackageFragment(iresource.getParent().getFullPath());
				final IPackageFragmentRoot root = (IPackageFragmentRoot) packageFragment.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
				if (root != null) {
					final IPath rootPath = root.getPath();
					String name = null;
					if (root.isExternal()) {
						name = rootPath.toOSString();
					} else if (javaProject.getElementName().equals(rootPath.segment(0))) {
					    if (rootPath.segmentCount() != 1) {
							name = rootPath.removeFirstSegments(1).makeRelative().toString();
					    }
					} else {
						name = rootPath.toString();
					}
					if (name != null && name.startsWith(SARLConfig.FOLDER_MAVEN_TEST_PREFIX)) {
						return Boolean.TRUE;
					}
				}
			} catch (JavaModelException e) {
				//
			}
		}
	}
	return null;
}