private Map parseIntoMap2()

in juneau-core/juneau-marshall/src/main/java/org/apache/juneau/json/JsonParserSession.java [458:539]
78 lines of code
25 McCabe index (conditional complexity)

	private <K,V> Map<K,V> parseIntoMap2(ParserReader r, Map<K,V> m, ClassMeta<K> keyType,
			ClassMeta<V> valueType, BeanPropertyMeta pMeta) throws IOException, ParseException, ExecutableException {

		if (keyType == null)
			keyType = (ClassMeta<K>)string();

		int S0=0; // Looking for outer {
		int S1=1; // Looking for attrName start.
		int S3=3; // Found attrName end, looking for :.
		int S4=4; // Found :, looking for valStart: { [ " ' LITERAL.
		int S5=5; // Looking for , or }
		int S6=6; // Found , looking for attr start.

		skipCommentsAndSpace(r);
		int state = S0;
		String currAttr = null;
		int c = 0;
		while (c != -1) {
			c = r.read();
			if (state == S0) {
				if (c == '{')
					state = S1;
				else
					break;
			} else if (state == S1) {
				if (c == '}') {
					return m;
				} else if (isCommentOrWhitespace(c)) {
					skipCommentsAndSpace(r.unread());
				} else {
					currAttr = parseFieldName(r.unread());
					state = S3;
				}
			} else if (state == S3) {
				if (c == ':')
					state = S4;
			} else if (state == S4) {
				if (isCommentOrWhitespace(c)) {
					skipCommentsAndSpace(r.unread());
				} else {
					K key = convertAttrToType(m, currAttr, keyType);
					V value = parseAnything(valueType, r.unread(), m, pMeta);
					setName(valueType, value, key);
					m.put(key, value);
					state = S5;
				}
			} else if (state == S5) {
				if (c == ',') {
					state = S6;
				} else if (isCommentOrWhitespace(c)) {
					skipCommentsAndSpace(r.unread());
				} else if (c == '}') {
					return m;
				} else {
					break;
				}
			} else if (state == S6) {
				if (c == '}') {
					break;
				} else if (isCommentOrWhitespace(c)) {
					skipCommentsAndSpace(r.unread());
				} else {
					currAttr = parseFieldName(r.unread());
					state = S3;
				}
			}
		}
		if (state == S0)
			throw new ParseException(this, "Expected '{' at beginning of JSON object.");
		if (state == S1)
			throw new ParseException(this, "Could not find attribute name on JSON object.");
		if (state == S3)
			throw new ParseException(this, "Could not find ':' following attribute name on JSON object.");
		if (state == S4)
			throw new ParseException(this, "Expected one of the following characters: {,[,',\",LITERAL.");
		if (state == S5)
			throw new ParseException(this, "Could not find '}' marking end of JSON object.");
		if (state == S6)
			throw new ParseException(this, "Unexpected '}' found in JSON object.");

		return null; // Unreachable.
	}