private boolean attachLicense()

in apache-rat-core/src/main/java/org/apache/rat/annotation/AbstractLicenseAppender.java [343:418]
73 lines of code
22 McCabe index (conditional complexity)

    private boolean attachLicense(final Writer writer, final File document,
                                  final boolean expectsHashPling,
                                  final boolean expectsAtEcho,
                                  final boolean expectsPackage,
                                  final boolean expectsXMLDecl,
                                  final boolean expectsPhpPI,
                                  final boolean expectsMSVSSF)
            throws IOException {
        boolean written = false;
        FileInputStream fis = null;
        BufferedReader br = null;
        try {
            fis = new FileInputStream(document);
            BOMInputStream bos = BOMInputStream.builder().setInputStream(fis).get();
            br = new BufferedReader(new InputStreamReader(bos, StandardCharsets.UTF_8));

            if (!expectsHashPling
                    && !expectsAtEcho
                    && !expectsPackage
                    && !expectsXMLDecl
                    && !expectsPhpPI
                    && !expectsMSVSSF) {
                written = true;
                writer.write(getLicenseHeader(document));
                writer.write(LINE_SEP);
            }

            String line;
            boolean first = true;
            while ((line = br.readLine()) != null) {
                if (first && expectsHashPling) {
                    written = true;
                    doFirstLine(document, writer, line, "#!");
                } else if (first && expectsAtEcho) {
                    written = true;
                    doFirstLine(document, writer, line, "@echo");
                } else if (first && expectsMSVSSF) {
                    written = true;
                    if (line.isEmpty()) {
                        line = passThroughReadNext(writer, line, br);
                    }
                    if (line.startsWith("Microsoft Visual Studio Solution"
                            + " File")) {
                        line = passThroughReadNext(writer, line, br);
                    }
                    doFirstLine(document, writer, line, "# Visual ");
                } else {
                    writer.write(line);
                    writer.write(LINE_SEP);
                }

                if (expectsPackage && line.startsWith("package ")) {
                    written = true;
                    writer.write(LINE_SEP);
                    writer.write(getLicenseHeader(document));
                    writer.write(LINE_SEP);
                } else if (expectsXMLDecl && line.startsWith("<?xml ")) {
                    written = true;
                    writer.write(LINE_SEP);
                    writer.write(getLicenseHeader(document));
                    writer.write(LINE_SEP);
                } else if (expectsPhpPI && line.startsWith("<?php")) {
                    written = true;
                    writer.write(LINE_SEP);
                    writer.write(getLicenseHeader(document));
                    writer.write(LINE_SEP);
                }
                first = false;
            }
        } finally {
            IOUtils.closeQuietly(br);
            IOUtils.closeQuietly(fis);
            IOUtils.closeQuietly(writer);
        }
        return written;
    }