private boolean fastDelete()

in src/main/java/org/apache/maven/plugins/clean/Cleaner.java [132:189]
48 lines of code
11 McCabe index (conditional complexity)

    private boolean fastDelete(File baseDirFile) {
        Path baseDir = baseDirFile.toPath();
        Path fastDir = this.fastDir.toPath();
        // Handle the case where we use ${maven.multiModuleProjectDirectory}/target/.clean for example
        if (fastDir.toAbsolutePath().startsWith(baseDir.toAbsolutePath())) {
            try {
                String prefix = baseDir.getFileName().toString() + ".";
                Path tmpDir = Files.createTempDirectory(baseDir.getParent(), prefix);
                try {
                    Files.move(baseDir, tmpDir, StandardCopyOption.REPLACE_EXISTING);
                    if (session != null) {
                        session.getRepositorySession().getData().set(LAST_DIRECTORY_TO_DELETE, baseDir.toFile());
                    }
                    baseDir = tmpDir;
                } catch (IOException e) {
                    Files.delete(tmpDir);
                    throw e;
                }
            } catch (IOException e) {
                if (logDebug != null) {
                    // TODO: this Logger interface cannot log exceptions and needs refactoring
                    logDebug.log("Unable to fast delete directory: " + e);
                }
                return false;
            }
        }
        // Create fastDir and the needed parents if needed
        try {
            if (!Files.isDirectory(fastDir)) {
                Files.createDirectories(fastDir);
            }
        } catch (IOException e) {
            if (logDebug != null) {
                // TODO: this Logger interface cannot log exceptions and needs refactoring
                logDebug.log("Unable to fast delete directory as the path " + fastDir
                        + " does not point to a directory or cannot be created: " + e);
            }
            return false;
        }

        try {
            Path tmpDir = Files.createTempDirectory(fastDir, "");
            Path dstDir = tmpDir.resolve(baseDir.getFileName());
            // Note that by specifying the ATOMIC_MOVE, we expect an exception to be thrown
            // if the path leads to a directory on another mountpoint.  If this is the case
            // or any other exception occurs, an exception will be thrown in which case
            // the method will return false and the usual deletion will be performed.
            Files.move(baseDir, dstDir, StandardCopyOption.ATOMIC_MOVE);
            BackgroundCleaner.delete(this, tmpDir.toFile(), fastMode);
            return true;
        } catch (IOException e) {
            if (logDebug != null) {
                // TODO: this Logger interface cannot log exceptions and needs refactoring
                logDebug.log("Unable to fast delete directory: " + e);
            }
            return false;
        }
    }