private AnalysisScope getInspectionScopeImpl()

in src/main/java/org/jetbrains/plugins/spotbugs/actions/AnalyzeScopeFiles.java [198:257]
55 lines of code
23 McCabe index (conditional complexity)

	private AnalysisScope getInspectionScopeImpl(@NotNull final DataContext dataContext) {
		//Possible scopes: file, directory, package, project, module.
		final Project projectContext = PlatformDataKeys.PROJECT_CONTEXT.getData(dataContext);
		if (projectContext != null) {
			return new AnalysisScope(projectContext);
		}

		final AnalysisScope analysisScope = AnalysisScopeUtil.KEY.getData(dataContext);
		if (analysisScope != null) {
			return analysisScope;
		}

		final Module moduleContext = LangDataKeys.MODULE_CONTEXT.getData(dataContext);
		if (moduleContext != null) {
			return new AnalysisScope(moduleContext);
		}

		final Module[] modulesArray = LangDataKeys.MODULE_CONTEXT_ARRAY.getData(dataContext);
		if (modulesArray != null) {
			return new AnalysisScope(modulesArray);
		}
		final PsiFile psiFile = LangDataKeys.PSI_FILE.getData(dataContext);
		if (psiFile != null && psiFile.getManager().isInProject(psiFile)) {
			final VirtualFile file = psiFile.getVirtualFile();
			if (file != null && file.isValid() && file.getFileType() instanceof ArchiveFileType && acceptNonProjectDirectories()) {
				final VirtualFile jarRoot = JarFileSystem.getInstance().getJarRootForLocalFile(file);
				if (jarRoot != null) {
					final PsiDirectory psiDirectory = psiFile.getManager().findDirectory(jarRoot);
					if (psiDirectory != null) {
						return new AnalysisScope(psiDirectory);
					}
				}
			}
			return new AnalysisScope(psiFile);
		}

		final VirtualFile[] virtualFiles = PlatformDataKeys.VIRTUAL_FILE_ARRAY.getData(dataContext);
		final Project project = PlatformDataKeys.PROJECT.getData(dataContext);
		if (virtualFiles != null && project != null) { //analyze on selection
			final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(project).getFileIndex();
			if (virtualFiles.length == 1) {
				final PsiDirectory psiDirectory = PsiManager.getInstance(project).findDirectory(virtualFiles[0]);
				if (psiDirectory != null && (acceptNonProjectDirectories() || psiDirectory.getManager().isInProject(psiDirectory))) {
					return new AnalysisScope(psiDirectory);
				}
			}
			final Set<VirtualFile> files = new HashSet<>();
			for (VirtualFile vFile : virtualFiles) {
				if (fileIndex.isInContent(vFile)) {
					if (vFile instanceof VirtualFileWindow) {
						files.add(vFile);
						vFile = ((VirtualFileWindow) vFile).getDelegate();
					}
					collectFilesUnder(vFile, files);
				}
			}
			return new AnalysisScope(project, files);
		}
		return project == null ? null : new AnalysisScope(project);
	}