private BeanMap parseIntoBean()

in juneau-core/juneau-marshall/src/main/java/org/apache/juneau/xml/XmlParserSession.java [648:802]
146 lines of code
53 McCabe index (conditional complexity)

	private <T> BeanMap<T> parseIntoBean(XmlReader r, BeanMap<T> m, boolean isNil) throws IOException, ParseException, ExecutableException, XMLStreamException {
		BeanMeta<?> bMeta = m.getMeta();
		XmlBeanMeta xmlMeta = getXmlBeanMeta(bMeta);

		for (int i = 0; i < r.getAttributeCount(); i++) {
			String key = getAttributeName(r, i);
			if (! ("nil".equals(key) || isSpecialAttr(key))) {
				String val = r.getAttributeValue(i);
				String ns = r.getAttributeNamespace(i);
				BeanPropertyMeta bpm = xmlMeta.getPropertyMeta(key);
				if (bpm == null) {
					if (xmlMeta.getAttrsProperty() != null) {
						xmlMeta.getAttrsProperty().add(m, key, key, val);
					} else if (ns == null) {
						onUnknownProperty(key, m, val);
					}
				} else {
					try {
						bpm.set(m, key, val);
					} catch (BeanRuntimeException e) {
						onBeanSetterException(bpm, e);
						throw e;
					}
				}
			}
		}

		BeanPropertyMeta cp = xmlMeta.getContentProperty();
		XmlFormat cpf = xmlMeta.getContentFormat();
		boolean trim = cp == null || ! cpf.isOneOf(MIXED_PWS, TEXT_PWS);
		ClassMeta<?> cpcm = (cp == null ? object() : cp.getClassMeta());
		StringBuilder sb = null;
		BeanRegistry breg = cp == null ? null : cp.getBeanRegistry();
		LinkedList<Object> l = null;

		int depth = 0;
		do {
			int event = r.next();
			String currAttr;
			// We only care about text in MIXED mode.
			// Ignore if in ELEMENTS mode.
			if (event == CHARACTERS) {
				if (cp != null && cpf.isOneOf(MIXED, MIXED_PWS)) {
					if (cpcm.isCollectionOrArray()) {
						if (l == null)
							l = new LinkedList<>();
						l.add(getText(r, false));
					} else {
						cp.set(m, null, getText(r, trim));
					}
				} else if (cpf != ELEMENTS) {
					String s = getText(r, trim);
					if (s != null) {
						if (sb == null)
							sb = getStringBuilder();
						sb.append(s);
					}
				} else {
					// Do nothing...we're in ELEMENTS mode.
				}
			} else if (event == START_ELEMENT) {
				if (cp != null && cpf.isOneOf(TEXT, TEXT_PWS)) {
					String s = parseText(r);
					if (s != null) {
						if (sb == null)
							sb = getStringBuilder();
						sb.append(s);
					}
					depth--;
				} else if (cpf == XMLTEXT) {
					if (sb == null)
						sb = getStringBuilder();
					sb.append(getElementAsString(r));
					depth++;
				} else if (cp != null && cpf.isOneOf(MIXED, MIXED_PWS)) {
					if (isWhitespaceElement(r) && (breg == null || ! breg.hasName(r.getLocalName()))) {
						if (cpcm.isCollectionOrArray()) {
							if (l == null)
								l = new LinkedList<>();
							l.add(parseWhitespaceElement(r));
						} else {
							cp.set(m, null, parseWhitespaceElement(r));
						}
					} else {
						if (cpcm.isCollectionOrArray()) {
							if (l == null)
								l = new LinkedList<>();
							l.add(parseAnything(cpcm.getElementType(), cp.getName(), r, m.getBean(false), false, cp));
						} else {
							cp.set(m, null, parseAnything(cpcm, cp.getName(), r, m.getBean(false), false, cp));
						}
					}
				} else if (cp != null && cpf == ELEMENTS) {
					cp.add(m, null, parseAnything(cpcm.getElementType(), cp.getName(), r, m.getBean(false), false, cp));
				} else {
					currAttr = getNameProperty(r);
					if (currAttr == null)
						currAttr = getElementName(r);
					BeanPropertyMeta pMeta = xmlMeta.getPropertyMeta(currAttr);
					if (pMeta == null) {
						Object value = parseAnything(object(), currAttr, r, m.getBean(false), false, null);
						onUnknownProperty(currAttr, m, value);
					} else {
						setCurrentProperty(pMeta);
						XmlFormat xf = getXmlBeanPropertyMeta(pMeta).getXmlFormat();
						if (xf == COLLAPSED) {
							ClassMeta<?> et = pMeta.getClassMeta().getElementType();
							Object value = parseAnything(et, currAttr, r, m.getBean(false), false, pMeta);
							setName(et, value, currAttr);
							pMeta.add(m, currAttr, value);
						} else if (xf == ATTR)  {
							pMeta.set(m, currAttr, getAttributeValue(r, 0));
							r.nextTag();
						} else {
							ClassMeta<?> cm = pMeta.getClassMeta();
							Object value = parseAnything(cm, currAttr, r, m.getBean(false), false, pMeta);
							setName(cm, value, currAttr);
							pMeta.set(m, currAttr, value);
						}
						setCurrentProperty(null);
					}
				}
			} else if (event == END_ELEMENT) {
				if (depth > 0) {
					if (cpf == XMLTEXT) {
						if (sb == null)
							sb = getStringBuilder();
						sb.append(getElementAsString(r));
					}
					else
						throw new ParseException("End element found where one was not expected.  {0}", XmlUtils.toReadableEvent(r));
				}
				depth--;
			} else if (event == COMMENT) {
				// Ignore comments.
			} else {
				throw new ParseException("Unexpected event type: {0}", XmlUtils.toReadableEvent(r));
			}
		} while (depth >= 0);

		if (cp != null && ! isNil) {
			if (sb != null)
				cp.set(m, null, sb.toString());
			else if (l != null)
				cp.set(m, null, XmlUtils.collapseTextNodes(l));
			else if (cpcm.isCollectionOrArray()) {
				Object o = cp.get(m, null);
				if (o == null)
					cp.set(m, cp.getName(), list());
			}
		}

		returnStringBuilder(sb);
		return m;
	}