private T parseAnything()

in juneau-core/juneau-marshall/src/main/java/org/apache/juneau/urlencoding/UrlEncodingParserSession.java [247:324]
68 lines of code
29 McCabe index (conditional complexity)

	private <T> T parseAnything(ClassMeta<T> eType, UonReader r, Object outer) throws IOException, ParseException, ExecutableException {

		if (eType == null)
			eType = (ClassMeta<T>)object();
		ObjectSwap<T,Object> swap = (ObjectSwap<T,Object>)eType.getSwap(this);
		BuilderSwap<T,Object> builder = (BuilderSwap<T,Object>)eType.getBuilderSwap(this);
		ClassMeta<?> sType = null;
		if (builder != null)
			sType = builder.getBuilderClassMeta(this);
		else if (swap != null)
			sType = swap.getSwapClassMeta(this);
		else
			sType = eType;

		if (sType.isOptional())
			return (T)optional(parseAnything(eType.getElementType(), r, outer));

		int c = r.peekSkipWs();
		if (c == '?')
			r.read();

		Object o;

		if (sType.isObject()) {
			JsonMap m = new JsonMap(this);
			parseIntoMap2(r, m, getClassMeta(Map.class, String.class, Object.class), outer);
			if (m.containsKey("_value"))
				o = m.get("_value");
			else
				o = cast(m, null, eType);
		} else if (sType.isMap()) {
			Map m = (sType.canCreateNewInstance() ? (Map)sType.newInstance() : newGenericMap(sType));
			o = parseIntoMap2(r, m, sType, m);
		} else if (builder != null) {
			BeanMap m = toBeanMap(builder.create(this, eType));
			m = parseIntoBeanMap(r, m);
			o = m == null ? null : builder.build(this, m.getBean(), eType);
		} else if (sType.canCreateNewBean(outer)) {
			BeanMap m = newBeanMap(outer, sType.getInnerClass());
			m = parseIntoBeanMap(r, m);
			o = m == null ? null : m.getBean();
		} else if (sType.isCollection() || sType.isArray() || sType.isArgs()) {
			// ?1=foo&2=bar...
			Collection c2 = ((sType.isArray() || sType.isArgs()) || ! sType.canCreateNewInstance(outer)) ? new JsonList(this) : (Collection)sType.newInstance();
			Map<Integer,Object> m = new TreeMap<>();
			parseIntoMap2(r, m, sType, c2);
			c2.addAll(m.values());
			if (sType.isArray())
				o = ArrayUtils.toArray(c2, sType.getElementType().getInnerClass());
			else if (sType.isArgs())
				o = c2.toArray(new Object[c2.size()]);
			else
				o = c2;
		} else {
			// It could be a non-bean with _type attribute.
			JsonMap m = new JsonMap(this);
			parseIntoMap2(r, m, getClassMeta(Map.class, String.class, Object.class), outer);
			if (m.containsKey(getBeanTypePropertyName(eType)))
				o = cast(m, null, eType);
			else if (m.containsKey("_value"))
				o = convertToType(m.get("_value"), sType);
			else if (sType.getProxyInvocationHandler() != null) {
				o = newBeanMap(outer, sType.getInnerClass()).load(m).getBean();
			} else {
				if (sType.getNotABeanReason() != null)
					throw new ParseException(this, "Class ''{0}'' could not be instantiated as application/x-www-form-urlencoded.  Reason: ''{1}''", sType, sType.getNotABeanReason());
				throw new ParseException(this, "Malformed application/x-www-form-urlencoded input for class ''{0}''.", sType);
			}
		}

		if (swap != null && o != null)
			o = unswap(swap, o, eType);

		if (outer != null)
			setParent(eType, o, outer);

		return (T)o;
	}