public void parseMachO()

in tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-code-module/src/main/java/org/apache/tika/parser/executable/ExecutableParser.java [435:529]
89 lines of code
27 McCabe index (conditional complexity)

    public void parseMachO(XHTMLContentHandler xhtml, Metadata metadata, InputStream stream,
                           byte[] first4) throws TikaException, IOException {
        var isLE = first4[3] == (byte) 0xFE;
        if (isLE) {
            metadata.set(ENDIAN, Endian.LITTLE.getName());
        } else {
            metadata.set(ENDIAN, Endian.BIG.getName());
        }

        // Bytes 5-8 are the CPU type and architecture bits
        var cpuType = isLE
                ? EndianUtils.readIntLE(stream)
                : EndianUtils.readIntBE(stream);
        if ((cpuType >> 24) == 1) {
            metadata.set(ARCHITECTURE_BITS, "64");
        }
        switch (cpuType) {
            case 1:
                metadata.set(MACHINE_TYPE, MACHINE_VAX);
                break;
            case 6:
                metadata.set(MACHINE_TYPE, MACHINE_M68K);
                break;
            case 7:
                metadata.set(MACHINE_TYPE, MACHINE_x86_32);
                break;
            case (7 | 0x01000000):
                metadata.set(MACHINE_TYPE, MACHINE_x86_64);
                break;
            case 8:
                metadata.set(MACHINE_TYPE, MACHINE_MIPS);
                break;
            case 12:
            case (12 | 0x01000000):
                metadata.set(MACHINE_TYPE, MACHINE_ARM);
                break;
            case 13:
                metadata.set(MACHINE_TYPE, MACHINE_M88K);
                break;
            case 14:
                metadata.set(MACHINE_TYPE, MACHINE_SPARC);
                break;
            case 18:
                metadata.set(MACHINE_TYPE, MACHINE_PPC);
                break;
        }

        // Bytes 9-12 are the CPU subtype
        var cpuSubtype = isLE
                ? EndianUtils.readIntLE(stream)
                : EndianUtils.readIntBE(stream);

        // Bytes 13-16 are the file type
        var fileType = isLE
                ? EndianUtils.readIntLE(stream)
                : EndianUtils.readIntBE(stream);
        switch (fileType) {
            case 0x1:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_OBJECT.toString());
                break;
            case 0x2:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_EXECUTABLE.toString());
                break;
            case 0x3:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_FVMLIB.toString());
                break;
            case 0x4:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_CORE.toString());
                break;
            case 0x5:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_PRELOAD.toString());
                break;
            case 0x6:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_DYLIB.toString());
                break;
            case 0x7:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_DYLINKER.toString());
                break;
            case 0x8:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_BUNDLE.toString());
                break;
            case 0x9:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_DYLIB_STUB.toString());
                break;
            case 0xa:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_DSYM.toString());
                break;
            case 0xb:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O_KEXT_BUNDLE.toString());
                break;
            default:
                metadata.set(Metadata.CONTENT_TYPE, MACH_O.toString());
                break;
        }
    }