private void writeCpUtf8()

in src/main/java/org/apache/commons/compress/harmony/pack200/CpBands.java [532:599]
62 lines of code
7 McCabe index (conditional complexity)

    private void writeCpUtf8(final OutputStream out) throws IOException, Pack200Exception {
        PackingUtils.log("Writing " + cp_Utf8.size() + " UTF8 entries...");
        final int[] cpUtf8Prefix = new int[cp_Utf8.size() - 2];
        final int[] cpUtf8Suffix = new int[cp_Utf8.size() - 1];
        final List<Character> chars = new ArrayList<>();
        final List<Integer> bigSuffix = new ArrayList<>();
        final List<Character> bigChars = new ArrayList<>();
        final Object[] cpUtf8Array = cp_Utf8.toArray();
        final String first = ((CPUTF8) cpUtf8Array[1]).getUnderlyingString();
        cpUtf8Suffix[0] = first.length();
        addCharacters(chars, first.toCharArray());
        for (int i = 2; i < cpUtf8Array.length; i++) {
            final char[] previous = ((CPUTF8) cpUtf8Array[i - 1]).getUnderlyingString().toCharArray();
            String currentStr = ((CPUTF8) cpUtf8Array[i]).getUnderlyingString();
            final char[] current = currentStr.toCharArray();
            int prefix = 0;
            for (int j = 0; j < previous.length; j++) {
                if (previous[j] != current[j]) {
                    break;
                }
                prefix++;
            }
            cpUtf8Prefix[i - 2] = prefix;
            currentStr = currentStr.substring(prefix);
            final char[] suffix = currentStr.toCharArray();
            if (suffix.length > 1000) { // big suffix (1000 is arbitrary - can we
                // do better?)
                cpUtf8Suffix[i - 1] = 0;
                bigSuffix.add(Integer.valueOf(suffix.length));
                addCharacters(bigChars, suffix);
            } else {
                cpUtf8Suffix[i - 1] = suffix.length;
                addCharacters(chars, suffix);
            }
        }
        final int[] cpUtf8Chars = new int[chars.size()];
        final int[] cpUtf8BigSuffix = new int[bigSuffix.size()];
        final int[][] cpUtf8BigChars = new int[bigSuffix.size()][];
        Arrays.setAll(cpUtf8Chars, i -> chars.get(i).charValue());
        for (int i = 0; i < cpUtf8BigSuffix.length; i++) {
            final int numBigChars = bigSuffix.get(i).intValue();
            cpUtf8BigSuffix[i] = numBigChars;
            cpUtf8BigChars[i] = new int[numBigChars];
            Arrays.setAll(cpUtf8BigChars[i], j -> bigChars.remove(0).charValue());
        }

        byte[] encodedBand = encodeBandInt("cpUtf8Prefix", cpUtf8Prefix, Codec.DELTA5);
        out.write(encodedBand);
        PackingUtils.log("Wrote " + encodedBand.length + " bytes from cpUtf8Prefix[" + cpUtf8Prefix.length + "]");

        encodedBand = encodeBandInt("cpUtf8Suffix", cpUtf8Suffix, Codec.UNSIGNED5);
        out.write(encodedBand);
        PackingUtils.log("Wrote " + encodedBand.length + " bytes from cpUtf8Suffix[" + cpUtf8Suffix.length + "]");

        encodedBand = encodeBandInt("cpUtf8Chars", cpUtf8Chars, Codec.CHAR3);
        out.write(encodedBand);
        PackingUtils.log("Wrote " + encodedBand.length + " bytes from cpUtf8Chars[" + cpUtf8Chars.length + "]");

        encodedBand = encodeBandInt("cpUtf8BigSuffix", cpUtf8BigSuffix, Codec.DELTA5);
        out.write(encodedBand);
        PackingUtils.log("Wrote " + encodedBand.length + " bytes from cpUtf8BigSuffix[" + cpUtf8BigSuffix.length + "]");

        for (int i = 0; i < cpUtf8BigChars.length; i++) {
            encodedBand = encodeBandInt("cpUtf8BigChars " + i, cpUtf8BigChars[i], Codec.DELTA5);
            out.write(encodedBand);
            PackingUtils.log("Wrote " + encodedBand.length + " bytes from cpUtf8BigChars" + i + "[" + cpUtf8BigChars[i].length + "]");
        }
    }