private static OutputStreamWriter initWriter()

in src/main/java/org/apache/commons/io/output/FileWriterWithEncoding.java [153:177]

• 25 lines of code
• 7 McCabe index (conditional complexity)

    private static OutputStreamWriter initWriter(final File file, final Object encoding, final boolean append) throws IOException {
        Objects.requireNonNull(file, "file");
        OutputStream outputStream = null;
        final boolean fileExistedAlready = file.exists();
        try {
            outputStream = FileUtils.newOutputStream(file, append);
            if (encoding == null || encoding instanceof Charset) {
                return new OutputStreamWriter(outputStream, Charsets.toCharset((Charset) encoding));
            }
            if (encoding instanceof CharsetEncoder) {
                return new OutputStreamWriter(outputStream, (CharsetEncoder) encoding);
            }
            return new OutputStreamWriter(outputStream, (String) encoding);
        } catch (final IOException | RuntimeException ex) {
            try {
                IOUtils.close(outputStream);
            } catch (final IOException e) {
                ex.addSuppressed(e);
            }
            if (!fileExistedAlready) {
                FileUtils.deleteQuietly(file);
            }
            throw ex;
        }
    }