private MapEntry parseMapEntry()

in blueprint/blueprint-parser/src/main/java/org/apache/aries/blueprint/parser/Parser.java [888:926]
35 lines of code
26 McCabe index (conditional complexity)

    private MapEntry parseMapEntry(Element element, ComponentMetadata enclosingComponent, String keyType, String valueType) {
        // Parse attributes
        String key = element.hasAttribute(KEY_ATTRIBUTE) ? element.getAttribute(KEY_ATTRIBUTE) : null;
        String keyRef = element.hasAttribute(KEY_REF_ATTRIBUTE) ? element.getAttribute(KEY_REF_ATTRIBUTE) : null;
        String value = element.hasAttribute(VALUE_ATTRIBUTE) ? element.getAttribute(VALUE_ATTRIBUTE) : null;
        String valueRef = element.hasAttribute(VALUE_REF_ATTRIBUTE) ? element.getAttribute(VALUE_REF_ATTRIBUTE) : null;
        // Parse elements
        NonNullMetadata keyValue = null;
        Metadata valValue = null;
        NodeList nl = element.getChildNodes();
        for (int i = 0; i < nl.getLength(); i++) {
            Node node = nl.item(i);
            if (node instanceof Element) {
                Element e = (Element) node;
                if (nodeNameEquals(e, KEY_ELEMENT)) {
                    keyValue = parseMapKeyEntry(e, enclosingComponent, keyType);
                } else {
                    valValue = parseValueGroup(e, enclosingComponent, valueType, true);
                }
            }
        }
        // Check key
        if (keyValue != null && (key != null || keyRef != null) || (keyValue == null && key == null && keyRef == null)) {
            throw new ComponentDefinitionException("Only and only one of " + KEY_ATTRIBUTE + " attribute, " + KEY_REF_ATTRIBUTE + " attribute or " + KEY_ELEMENT + " element must be set");
        } else if (keyValue == null && key != null) {
            keyValue = new ValueMetadataImpl(key, keyType);
        } else if (keyValue == null /*&& keyRef != null*/) {
            keyValue = new RefMetadataImpl(keyRef);
        }
        // Check value
        if (valValue != null && (value != null || valueRef != null) || (valValue == null && value == null && valueRef == null)) {
            throw new ComponentDefinitionException("Only and only one of " + VALUE_ATTRIBUTE + " attribute, " + VALUE_REF_ATTRIBUTE + " attribute or sub element must be set");
        } else if (valValue == null && value != null) {
            valValue = new ValueMetadataImpl(value, valueType);
        } else if (valValue == null /*&& valueRef != null*/) {
            valValue = new RefMetadataImpl(valueRef);
        }
        return new MapEntryImpl(keyValue, valValue);
    }