public CfnSpecification loadSpecification()

in src/main/java/aws/cfn/codegen/SpecificationLoader.java [43:71]

• 27 lines of code
• 4 McCabe index (conditional complexity)

    public CfnSpecification loadSpecification(URL location) throws IOException {
        try (PushbackInputStream stream = new PushbackInputStream(location.openStream(), 8)) {
            byte[] magic = new byte[4];
            int nread = stream.read(magic);
            if (nread < 4) {
                throw new IOException("Can not read stream");
            }
            int magicNum = ((int)magic[0] & 0xFF) | ((int)magic[1] & 0xFF) << 8;
            Reader reader;
            if (GZIPInputStream.GZIP_MAGIC == magicNum) {
                stream.unread(magic);
                reader = new InputStreamReader(new GZIPInputStream(stream), StandardCharsets.UTF_8);
            }
            else {
                magicNum |= ((int)magic[2] & 0xFF) << 16 | ((int)magic[3] & 0xFF) << 24;
                if (magicNum == 0x04034b50) {
                    stream.unread(magic);
                    reader = new InputStreamReader(new ZipInputStream(stream), StandardCharsets.UTF_8);
                }
                else {
                    stream.unread(magic);
                    reader = new InputStreamReader(stream, StandardCharsets.UTF_8);
                }
            }

            return mapperForJSON.readValue(reader, CfnSpecification.class);
        }

    }