@Override
protected NodeTuple representJavaBeanProperty(
Object javaBean, Property property, Object propertyValue, Tag customTag) {
NodeTuple tuple =
super.representJavaBeanProperty(javaBean, property, propertyValue, customTag);
Node valueNode = tuple.getValueNode();
if (Tag.NULL.equals(valueNode.getTag())) {
return null; // skip 'null' values
}
if (valueNode instanceof CollectionNode) {
if (Tag.SEQ.equals(valueNode.getTag())) {
SequenceNode seq = (SequenceNode) valueNode;
if (seq.getValue().isEmpty()) {
return null; // skip empty lists
}
}
if (Tag.MAP.equals(valueNode.getTag())) {
MappingNode seq = (MappingNode) valueNode;
if (seq.getValue().isEmpty()) {
return null; // skip empty maps
}
}
}
return tuple;
}
private Node composeSequenceNode(String anchor) {
SequenceStartEvent startEvent = (SequenceStartEvent) this.parser.getEvent();
String tag = startEvent.getTag();
boolean resolved = false;
Tag nodeTag;
if ((tag == null) || (tag.equals("!"))) {
Tag nodeTag = this.resolver.resolve(NodeId.sequence, null, startEvent.getImplicit());
resolved = true;
} else {
nodeTag = new Tag(tag);
}
ArrayList<Node> children = new ArrayList();
SequenceNode node =
new SequenceNode(
nodeTag,
resolved,
children,
startEvent.getStartMark(),
null,
startEvent.getFlowStyle());
if (anchor != null) {
this.anchors.put(anchor, node);
}
while (!this.parser.checkEvent(Event.ID.SequenceEnd)) {
children.add(composeNode(node));
}
Event endEvent = this.parser.getEvent();
node.setEndMark(endEvent.getEndMark());
return node;
}
private SequenceNode cloneSequenceNode(SequenceNode node, Map<String, String> parameters) {
List<Node> nodes = new ArrayList<Node>();
for (Node item : node.getValue()) {
nodes.add(cloneNode(item, parameters));
}
return new SequenceNode(node.getTag(), nodes, node.getFlowStyle());
}
private void loopTemplateSequence(
SequenceNode templateSequence,
String templateType,
List<ValidationResult> validationResults) {
List<Node> prunedTemplates = new ArrayList<Node>();
for (int j = 0; j < templateSequence.getValue().size(); j++) {
Node template = templateSequence.getValue().get(j);
if (template.getNodeId() == scalar) {
if (!template.getTag().equals(INCLUDE_TAG)) {
validationResults.add(
createErrorResult(
"Mapping or !include expected",
templateSequence.getStartMark(),
templateSequence.getEndMark()));
}
template = includeResolver.resolve(template, resourceLoader, nodeNandler);
}
for (NodeTuple tuple : ((MappingNode) template).getValue()) {
if (tuple.getKeyNode().getNodeId() != scalar) {
validationResults.add(createErrorResult(NON_SCALAR_KEY_MESSAGE, tuple.getKeyNode()));
continue;
}
String templateKey = ((ScalarNode) tuple.getKeyNode()).getValue();
Node templateValue = tuple.getValueNode();
if (templateValue.getNodeId() != mapping) {
validationResults.add(
createErrorResult(
"Mapping expected", templateValue.getStartMark(), templateValue.getEndMark()));
continue;
}
if (templateType.equals("resourceTypes")) {
resourceTypesMap.put(templateKey, (MappingNode) templateValue);
}
if (templateType.equals("traits")) {
traitsMap.put(templateKey, (MappingNode) templateValue);
}
prunedTemplates.add(getFakeTemplateNode(tuple.getKeyNode()));
}
}
templateSequence.getValue().clear();
templateSequence.getValue().addAll(prunedTemplates);
}
protected NodeTuple representJavaBeanProperty(
Object javaBean, Property property, Object propertyValue, Tag customTag) {
final NodeTuple tuple =
super.representJavaBeanProperty(javaBean, property, propertyValue, customTag);
final Node valueNode = tuple.getValueNode();
if (valueNode instanceof CollectionNode) {
// Removed null check
if (Tag.SEQ.equals(valueNode.getTag())) {
final SequenceNode seq = (SequenceNode) valueNode;
if (seq.getValue().isEmpty()) {
return null; // skip empty lists
}
}
if (Tag.MAP.equals(valueNode.getTag())) {
final MappingNode seq = (MappingNode) valueNode;
if (seq.getValue().isEmpty()) {
return null; // skip empty maps
}
}
}
return tuple;
}
private void applyTraitsToActions(
SequenceNode traits, Map<String, Node> actionNodes, String actionName) {
for (Node ref : traits.getValue()) {
if (actionName == null) {
for (Map.Entry<String, Node> actionEntry : actionNodes.entrySet()) {
currentAction = actionEntry.getKey();
MappingNode templateNode = cloneTemplate(ref, TemplateType.TRAIT);
if (templateNode != null) {
mergeNodes(actionEntry.getValue(), templateNode, Action.class);
}
}
} else {
currentAction = actionName;
MappingNode templateNode = cloneTemplate(ref, TemplateType.TRAIT);
if (templateNode != null) {
mergeNodes(actionNodes.get(actionName), templateNode, Action.class);
}
}
}
}
@SuppressWarnings("unchecked")
public Object construct(Node node) {
SequenceNode snode = (SequenceNode) node;
if (Set.class.isAssignableFrom(node.getType())) {
if (node.isTwoStepsConstruction()) {
throw new YAMLException("Set cannot be recursive.");
} else {
return constructSet(snode);
}
} else if (Collection.class.isAssignableFrom(node.getType())) {
if (node.isTwoStepsConstruction()) {
return createDefaultList(snode.getValue().size());
} else {
return constructSequence(snode);
}
} else if (node.getType().isArray()) {
if (node.isTwoStepsConstruction()) {
return createArray(node.getType(), snode.getValue().size());
} else {
return constructArray(snode);
}
} else {
// create immutable object
List<java.lang.reflect.Constructor<?>> possibleConstructors =
new ArrayList<java.lang.reflect.Constructor<?>>(snode.getValue().size());
for (java.lang.reflect.Constructor<?> constructor : node.getType().getConstructors()) {
if (snode.getValue().size() == constructor.getParameterTypes().length) {
possibleConstructors.add(constructor);
}
}
if (!possibleConstructors.isEmpty()) {
if (possibleConstructors.size() == 1) {
Object[] argumentList = new Object[snode.getValue().size()];
java.lang.reflect.Constructor<?> c = possibleConstructors.get(0);
int index = 0;
for (Node argumentNode : snode.getValue()) {
Class<?> type = c.getParameterTypes()[index];
// set runtime classes for arguments
argumentNode.setType(type);
argumentList[index++] = constructObject(argumentNode);
}
try {
return c.newInstance(argumentList);
} catch (Exception e) {
throw new YAMLException(e);
}
}
// use BaseConstructor
List<Object> argumentList = (List<Object>) constructSequence(snode);
Class<?>[] parameterTypes = new Class[argumentList.size()];
int index = 0;
for (Object parameter : argumentList) {
parameterTypes[index] = parameter.getClass();
index++;
}
for (java.lang.reflect.Constructor<?> c : possibleConstructors) {
Class<?>[] argTypes = c.getParameterTypes();
boolean foundConstructor = true;
for (int i = 0; i < argTypes.length; i++) {
if (!wrapIfPrimitive(argTypes[i]).isAssignableFrom(parameterTypes[i])) {
foundConstructor = false;
break;
}
}
if (foundConstructor) {
try {
return c.newInstance(argumentList.toArray());
} catch (Exception e) {
throw new YAMLException(e);
}
}
}
}
throw new YAMLException(
"No suitable constructor with "
+ String.valueOf(snode.getValue().size())
+ " arguments found for "
+ node.getType());
}
}
protected Object constructJavaBean2ndStep(MappingNode node, Object object) {
flattenMapping(node);
Class<? extends Object> beanType = node.getType();
List<NodeTuple> nodeValue = node.getValue();
for (NodeTuple tuple : nodeValue) {
ScalarNode keyNode;
if (tuple.getKeyNode() instanceof ScalarNode) {
// key must be scalar
keyNode = (ScalarNode) tuple.getKeyNode();
} else {
throw new YAMLException("Keys must be scalars but found: " + tuple.getKeyNode());
}
Node valueNode = tuple.getValueNode();
// keys can only be Strings
keyNode.setType(String.class);
String key = (String) constructObject(keyNode);
try {
Property property = getProperty(beanType, key);
valueNode.setType(property.getType());
TypeDescription memberDescription = typeDefinitions.get(beanType);
boolean typeDetected = false;
if (memberDescription != null) {
switch (valueNode.getNodeId()) {
case sequence:
SequenceNode snode = (SequenceNode) valueNode;
Class<? extends Object> memberType = memberDescription.getListPropertyType(key);
if (memberType != null) {
snode.setListType(memberType);
typeDetected = true;
} else if (property.getType().isArray()) {
snode.setListType(property.getType().getComponentType());
typeDetected = true;
}
break;
case mapping:
MappingNode mnode = (MappingNode) valueNode;
Class<? extends Object> keyType = memberDescription.getMapKeyType(key);
if (keyType != null) {
mnode.setTypes(keyType, memberDescription.getMapValueType(key));
typeDetected = true;
}
break;
default: // scalar
}
}
if (!typeDetected && valueNode.getNodeId() != NodeId.scalar) {
// only if there is no explicit TypeDescription
Class<?>[] arguments = property.getActualTypeArguments();
if (arguments != null) {
// type safe (generic) collection may contain the
// proper class
if (valueNode.getNodeId() == NodeId.sequence) {
Class<?> t = arguments[0];
SequenceNode snode = (SequenceNode) valueNode;
snode.setListType(t);
} else if (valueNode.getTag().equals(Tag.SET)) {
Class<?> t = arguments[0];
MappingNode mnode = (MappingNode) valueNode;
mnode.setOnlyKeyType(t);
mnode.setUseClassConstructor(true);
} else if (property.getType().isAssignableFrom(Map.class)) {
Class<?> ketType = arguments[0];
Class<?> valueType = arguments[1];
MappingNode mnode = (MappingNode) valueNode;
mnode.setTypes(ketType, valueType);
mnode.setUseClassConstructor(true);
} else {
// the type for collection entries cannot be
// detected
}
}
}
Object value = constructObject(valueNode);
property.set(object, value);
} catch (Exception e) {
throw new YAMLException(
"Cannot create property=" + key + " for JavaBean=" + object + "; " + e.getMessage(),
e);
}
}
return object;
}