protected String generateFormattedOutput()

in bundle/core/src/main/java/org/apache/karaf/bundle/command/Headers.java [87:208]
95 lines of code
22 McCabe index (conditional complexity)

    protected String generateFormattedOutput(Bundle bundle) {
        StringBuilder output = new StringBuilder();
        Map<String, Object> otherAttribs = new TreeMap<>();
        Map<String, Object> karafAttribs = new TreeMap<>();
        Map<String, Object> bundleAttribs = new TreeMap<>();
        Map<String, Object> serviceAttribs = new TreeMap<>();
        Map<String, Object> packagesAttribs = new TreeMap<>();
        Dictionary<String, String> dict = bundle.getHeaders();
        Enumeration<String> keys = dict.keys();

        // do an initial loop and separate the attributes in different groups
        while (keys.hasMoreElements()) {
            String k = keys.nextElement();
            Object v = dict.get(k);
            if (k.startsWith(KARAF_PREFIX)) {
                // starts with Karaf-xxx
                karafAttribs.put(k, v);
            } else if (k.startsWith(BUNDLE_PREFIX)) {
                // starts with Bundle-xxx
                bundleAttribs.put(k, v);
            } else if (k.endsWith(SERVICE_SUFFIX) || k.endsWith(CAPABILITY_SUFFIX)) {
                // ends with xxx-Service
                serviceAttribs.put(k, v);
            } else if (k.endsWith(PACKAGE_SUFFFIX)) {
                // ends with xxx-Package
                packagesAttribs.put(k, v);
            } else if (k.endsWith(REQUIRE_BUNDLE_ATTRIB)) {
                // require bundle statement
                packagesAttribs.put(k, v);
            } else {
                // the remaining attribs
                otherAttribs.put(k, v);
            }
        }

        // we will display the formatted result like this:
        // Bundle-Name (ID)
        // -----------------------
        // all other attributes
        //
        // all Karaf attributes
        //
        // all Bundle attributes
        //
        // all Service attributes
        //
        // all Package attributes
        Iterator<Map.Entry<String, Object>> it = otherAttribs.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, Object> e = it.next();
            output.append(String.format("%s = %s\n", e.getKey(), ShellUtil.getValueString(e.getValue())));
        }
        if (otherAttribs.size() > 0) {
            output.append('\n');
        }

        it = karafAttribs.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, Object> e = it.next();
            output.append(String.format("%s = %s\n", e.getKey(), ShellUtil.getValueString(e.getValue())));
        }
        if (karafAttribs.size() > 0) {
            output.append('\n');
        }

        it = bundleAttribs.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, Object> e = it.next();
            output.append(String.format("%s = %s\n", e.getKey(), ShellUtil.getValueString(e.getValue())));
        }
        if (bundleAttribs.size() > 0) {
            output.append('\n');
        }

        it = serviceAttribs.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, Object> e = it.next();
            output.append(e.getKey());
            output.append(" = \n");
            formatHeader(ShellUtil.getValueString(e.getValue()), null, output, indent);
            output.append("\n");
        }
        if (serviceAttribs.size() > 0) {
            output.append('\n');
        }

        Map<String, ClauseFormatter> formatters = new HashMap<>();
        formatters.put(REQUIRE_BUNDLE_ATTRIB, new ClauseFormatter() {
            public void pre(Clause clause, StringBuilder output) {
                boolean isSatisfied = checkBundle(clause.getName(), clause.getAttribute("bundle-version"));
                output.append(isSatisfied ? SimpleAnsi.COLOR_DEFAULT : SimpleAnsi.COLOR_RED);
            }
            public void post(Clause clause, StringBuilder output) {
                output.append(SimpleAnsi.RESET);
            }
        });
        formatters.put(IMPORT_PACKAGES_ATTRIB, new ClauseFormatter() {
            public void pre(Clause clause, StringBuilder output) {
                boolean isSatisfied = checkPackage(clause.getName(), clause.getAttribute("version"));
                boolean isOptional = "optional".equals(clause.getDirective("resolution"));
                output.append(isSatisfied ? SimpleAnsi.COLOR_DEFAULT : SimpleAnsi.COLOR_RED);
                output.append(isSatisfied || isOptional ? SimpleAnsi.INTENSITY_NORMAL : SimpleAnsi.INTENSITY_BOLD);
            }
            public void post(Clause clause, StringBuilder output) {
                output.append(SimpleAnsi.RESET);
            }
        });

        it = packagesAttribs.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, Object> e = it.next();
            output.append(e.getKey());
            output.append(" = \n");
            formatHeader(ShellUtil.getValueString(e.getValue()), formatters.get(e.getKey()), output, indent);
            output.append("\n");
        }
        if (packagesAttribs.size() > 0) {
            output.append('\n');
        }

        return output.toString();
    }