private static ResourceImpl parseResource()

in repository/service/src/main/java/org/apache/karaf/cave/repository/service/bundlerepository/StaxParser.java [261:311]
49 lines of code
13 McCabe index (conditional complexity)

    private static ResourceImpl parseResource(URI repositoryUrl, XMLStreamReader reader) {
        try {
            if (reader.getAttributeCount() > 0) {
                throw new IllegalStateException("Unexpected attribute '" + reader.getAttributeLocalName(0) + "'");
            }
            ResourceImpl resource = new ResourceImpl();
            int event;
            while ((event = reader.nextTag()) == START_ELEMENT) {
                String element = reader.getLocalName();
                switch (element) {
                    case CAPABILITY:
                        CapabilityImpl cap = parseCapability(reader, resource);
                        // Resolve relative resource urls now
                        if (repositoryUrl != null && ContentNamespace.CONTENT_NAMESPACE.equals(cap.getNamespace())) {
                            Object url = cap.getAttributes().get(ContentNamespace.CAPABILITY_URL_ATTRIBUTE);
                            if (url instanceof String) {
                                url = repositoryUrl.resolve(url.toString()).toString();
                                cap.getAttributes().put(ContentNamespace.CAPABILITY_URL_ATTRIBUTE, url);
                            }
                        }
                        resource.addCapability(cap);
                        break;
                    case REQUIREMENT:
                        resource.addRequirement(parseRequirement(reader, resource));
                        break;
                    default:
                        while ((event = reader.next()) != END_ELEMENT) {
                            switch (event) {
                                case START_ELEMENT:
                                    throw new IllegalStateException("Unexpected element '" + reader.getLocalName() + "' inside 'resource' element");
                                case CHARACTERS:
                                    throw new IllegalStateException("Unexpected text inside 'resource' element");
                                default:
                                    break;
                            }
                        }
                        break;
                }
            }
            // Sanity check
            sanityCheckEndElement(reader, event, RESOURCE);
            return resource;
        } catch (Exception e) {
            Location loc = reader.getLocation();
            if (loc != null) {
                throw new IllegalStateException("Error while parsing resource at line " + loc.getLineNumber() + " and column " + loc.getColumnNumber(), e);
            } else {
                throw new IllegalStateException("Error while parsing resource", e);
            }
        }
    }