private void writeState(XmlSerializer serializer, Node<?> node) throws IOException {
Entity parent = node.getParent();
if (parent != null) {
State s = parent.getChildState(node.getName());
int state = s.intValue();
if (state > 0) {
serializer.attribute(null, STATE_ATTRIBUTE, Integer.toString(state));
}
}
}
/**
* Writes empty nodes child of an entity if there is a node state specified.
*
* @param serializer
* @param entity
* @throws IOException
*/
private void writeEmptyNodes(XmlSerializer serializer, Entity entity) throws IOException {
EntityDefinition defn = entity.getDefinition();
List<NodeDefinition> childDefns = defn.getChildDefinitions();
for (NodeDefinition childDefn : childDefns) {
String childName = childDefn.getName();
if (entity.getCount(childName) == 0) {
State childState = entity.getChildState(childName);
int childStateInt = childState.intValue();
if (childStateInt > 0) {
serializer.startTag(null, childName);
serializer.attribute(null, STATE_ATTRIBUTE, Integer.toString(childStateInt));
serializer.endTag(null, childName);
}
}
}
}
private void writeChildren(XmlSerializer serializer, Entity rootEntity) throws IOException {
List<Node<?>> children = rootEntity.getChildren();
for (Node<?> node : children) {
write(serializer, node);
}
writeEmptyNodes(serializer, rootEntity);
}
private void write(XmlSerializer serializer, Entity entity) throws IOException {
String name = entity.getName();
serializer.startTag(null, name);
writeState(serializer, entity);
writeChildren(serializer, entity);
serializer.endTag(null, name);
}
private Object extractNonEmptyChildren(String propertyName, Entity entity) {
List<Node<?>> list = new ArrayList<Node<?>>();
for (Node<?> childNode : entity.getAll(propertyName)) {
if (childNode instanceof Entity || (!childNode.isEmpty())) {
list.add(childNode);
}
}
if (list.isEmpty()) {
return null;
}
return Collections.unmodifiableList(list);
}
public void write(CollectRecord record, Writer out) throws IOException, XmlPullParserException {
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlSerializer serializer = factory.newSerializer();
serializer.setFeature(INDENT_FEATURE, true);
serializer.setOutput(out);
// do not use UTF-8 encoding: unicode text will be escaped by the serializer instead
// serializer.startDocument("UTF-8", true);
serializer.startDocument(null, true);
Entity rootEntity = record.getRootEntity();
String rootEntityName = rootEntity.getName();
serializer.startTag(null, rootEntityName);
ModelVersion version = record.getVersion();
if (version != null) {
serializer.attribute(null, RECORD_VERSION_ATTRIBUTE, version.getName());
}
serializer.attribute(
null, RECORD_STEP_ATTRIBUTE, Integer.toString(record.getStep().getStepNumber()));
if (record.getState() != null) {
serializer.attribute(null, STATE_ATTRIBUTE, record.getState().getCode());
}
User createdBy = record.getCreatedBy();
if (createdBy != null) {
serializer.attribute(null, RECORD_CREATED_BY_ATTRIBUTE, createdBy.getName());
}
User modifiedBy = record.getModifiedBy();
if (modifiedBy != null) {
serializer.attribute(null, RECORD_MODIFIED_BY_ATTRIBUTE, modifiedBy.getName());
}
addDateAttribute(serializer, RECORD_CREATED_ATTRIBUTE, record.getCreationDate());
addDateAttribute(serializer, RECORD_MODIFIED_ATTRIBUTE, record.getModifiedDate());
writeChildren(serializer, rootEntity);
serializer.endTag(null, rootEntityName);
serializer.endDocument();
serializer.flush();
}
private NodeDefinition getChildDefinition(Entity entity, String childName) {
EntityDefinition entityDefn = entity.getDefinition();
NodeDefinition childDefn = entityDefn.getChildDefinition(childName);
return childDefn;
}