public Iterator getPrefixes()

in src/main/java/org/apache/servicemix/jbi/jaxp/NamespaceContextImpl.java [136:164]

• 29 lines of code
• 10 McCabe index (conditional complexity)

    public Iterator<String> getPrefixes(String nsURI) {
        if (nsURI == null) {
            throw new IllegalArgumentException("nsURI was null");
        } else if (nsURI.length() == 0) {
            throw new IllegalArgumentException("nsURI was empty");
        } else if (nsURI.equals(XMLConstants.XML_NS_URI)) {
            return Collections.singleton(XMLConstants.XML_NS_PREFIX).iterator();
        } else if (nsURI.equals(XMLConstants.XMLNS_ATTRIBUTE_NS_URI)) {
            return Collections.singleton(XMLConstants.XMLNS_ATTRIBUTE).iterator();
        }
        Set<String> prefixes = null;
        for (Map.Entry<String, String> entry : namespaces.entrySet()) {
            String uri = entry.getValue();
            if (uri.equals(nsURI)) {
                if (prefixes == null) {
                    prefixes = new HashSet<String>();
                }
                prefixes.add(entry.getKey());
            }
        }
        if (prefixes != null) {
            return Collections.unmodifiableSet(prefixes).iterator();
        } else if (nsURI.length() == 0) {
            return Collections.singleton("").iterator();
        } else {
            List<String> l = Collections.emptyList();
            return l.iterator();
        }
    }