private void createManifest()

in src/main/java/org/apache/sling/maven/slingstart/JarArchiverHelper.java [58:114]
49 lines of code
10 McCabe index (conditional complexity)

    private void createManifest(final java.util.jar.Manifest manifest) throws MojoExecutionException {
        // create a new manifest
        final Manifest outManifest = new Manifest();

        try {
            boolean hasMain = false;

            // copy entries from existing manifest
            if ( manifest != null ) {
                final Map<Object, Object> attrs = manifest.getMainAttributes();
                for(final Map.Entry<Object, Object> entry : attrs.entrySet()) {
                    final String key = entry.getKey().toString();
                    if ( !BuildConstants.ATTRS_EXCLUDES.contains(key)) {
                        final Attribute a = new Attribute(key, entry.getValue().toString());
                        outManifest.addConfiguredAttribute(a);
                    }
                    if ( key.equals(BuildConstants.ATTR_MAIN_CLASS) ) {
                        hasMain = true;
                    }
                }
            }
            outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_IMPLEMENTATION_BUILD,
                            project.getVersion()));
            outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_IMPLEMENTATION_VERSION,
                            project.getVersion()));

            String organizationName = project.getOrganization() != null ? project.getOrganization().getName() : null;
            if ( organizationName != null ) {
                outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_IMPLEMENTATION_VENDOR,
                            organizationName));
                outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_CREATED_BY,
                            organizationName));
                outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_BUILT_BY,
                            organizationName));
                outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_SPECIFICATION_VENDOR,
                        organizationName));
            }

            outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_IMPLEMENTATION_VENDOR_ID,
                            project.getGroupId()));
            outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_IMPLEMENTATION_TITLE,
                            project.getName()));
            outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_SPECIFICATION_TITLE,
                            project.getName()));
            outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_SPECIFICATION_VERSION,
                            project.getVersion()));

            if ( archiver.getDestFile().getName().endsWith(".jar") && !hasMain) {
                outManifest.addConfiguredAttribute(new Attribute(BuildConstants.ATTR_MAIN_CLASS,
                                BuildConstants.ATTR_VALUE_MAIN_CLASS));
            }

            archiver.addConfiguredManifest(outManifest);
        } catch (final ManifestException e) {
            throw new MojoExecutionException("Unable to create manifest for " + this.archiver.getDestFile(), e);
        }
    }