/**
* recursively write out a node of the instance
* @param out
* @param e
* @param ref
* @throws IOException
*/
private void writeTreeElement(BinaryWriter out_, TreeElement e)
{
TreeElement templ = instance.getTemplatePath(e.getRef());
Boolean isGroup = !templ.isLeaf();
if (isGroup)
{
ArrayList childTypesHandled = new ArrayList();
for (int i = 0; i < templ.getNumChildren(); i++)
{
String childName = templ.getChildAt(i).getName();
if (!childTypesHandled.Contains(childName))
{
childTypesHandled.Add(childName);
int mult = e.getChildMultiplicity(childName);
if (mult > 0 && !e.getChild(childName, 0).isRelevant())
{
mult = 0;
}
ExtUtil.writeNumeric(out_, mult);
for (int j = 0; j < mult; j++)
{
writeTreeElement(out_, e.getChild(childName, j));
}
}
}
}
else
{
ExtUtil.write(out_, new ExtWrapAnswerData(this, e.dataType, e.getValue()));
}
}
/*
* (non-Javadoc)
*
* @see
* org.javarosa.core.model.utils.ITreeVisitor#visit(org.javarosa.core.model
* .DataModelTree)
*/
public void visit(FormInstance tree)
{
nodeSet = "";
//TreeElement root = tree.getRoot();
TreeElement root = tree.resolveReference(rootRef);
xmlns = root.getAttributeValue("", "xmlns");
delimeter = root.getAttributeValue("", "delimeter");
prefix = root.getAttributeValue("", "prefix");
xmlns = (xmlns != null) ? xmlns : " ";
delimeter = (delimeter != null) ? delimeter : " ";
prefix = (prefix != null) ? prefix : " ";
//Don't bother adding any delimiters, yet. Delimiters are
//added before tags/data
theSmsStr = prefix;
// serialize each node to get it's answers
for (int j = 0; j < root.getNumChildren(); j++)
{
TreeElement tee = root.getChildAt(j);
String e = serializeNode(tee);
if (e != null)
{
theSmsStr += e;
}
}
theSmsStr = theSmsStr.Trim();
}
/*
* (non-Javadoc)
* @see org.javarosa.core.model.utils.ITreeVisitor#visit(org.javarosa.core.model.DataModelTree)
*/
public void visit(FormInstance tree)
{
theXmlDoc = new XmlDocument();
//TreeElement root = tree.getRoot();
TreeElement root = tree.resolveReference(rootRef);
//For some reason resolveReference won't ever return the root, so we'll
//catch that case and just start at the root.
if (root == null)
{
root = tree.getRoot();
}
for (int i = 0; i < root.getNumChildren(); i++)
{
TreeElement childAt = root.getChildAt(i);
}
if (root != null)
{
theXmlDoc.AppendChild(serializeNode(root));
}
XmlElement top = (XmlElement)theXmlDoc.FirstChild;
String[] prefixes = tree.getNamespacePrefixes();
for (int i = 0; i < prefixes.Length; ++i)
{
top.Prefix = prefixes[i];
}
if (tree.schema != null)
{
//top.setNamespace(tree.schema);
top.SetAttribute(top.Name, tree.schema, top.Value);
top.Prefix = tree.schema;
}
}
/**
* recursively read in a node of the instance, by filling out the template instance
* @param e
* @param ref
* @param in
* @param pf
* @throws IOException
* @throws DeserializationException
*/
private void readTreeElement(TreeElement e, BinaryReader in_, PrototypeFactory pf)
{
TreeElement templ = instance.getTemplatePath(e.getRef());
Boolean isGroup = !templ.isLeaf();
if (isGroup)
{
ArrayList childTypes = new ArrayList();
for (int i = 0; i < templ.getNumChildren(); i++)
{
String childName = templ.getChildAt(i).getName();
if (!childTypes.Contains(childName))
{
childTypes.Add(childName);
}
}
for (int i = 0; i < childTypes.Count; i++)
{
String childName = (String)childTypes[i];
TreeReference childTemplRef = e.getRef().extendRef(childName, 0);
TreeElement childTempl = instance.getTemplatePath(childTemplRef);
Boolean repeatable = childTempl.repeatable;
int n = ExtUtil.readInt(in_);
Boolean relevant = (n > 0);
if (!repeatable && n > 1)
{
throw new DeserializationException("Detected repeated instances of a non-repeatable node");
}
if (repeatable)
{
int mult = e.getChildMultiplicity(childName);
for (int j = mult - 1; j >= 0; j--)
{
e.removeChild(childName, j);
}
for (int j = 0; j < n; j++)
{
TreeReference dstRef = e.getRef().extendRef(childName, j);
try
{
instance.copyNode(childTempl, dstRef);
}
catch (InvalidReferenceException ire)
{
//If there is an invalid reference, this is a malformed instance,
//so we'll throw a Deserialization exception.
TreeReference r = ire.InvalidReference;
if (r == null)
{
throw new DeserializationException("Null Reference while attempting to deserialize! " + ire.Message);
}
else
{
throw new DeserializationException("Invalid Reference while attemtping to deserialize! Reference: " + r.toString(true) + " | " + ire.Message);
}
}
TreeElement child = e.getChild(childName, j);
child.setRelevant(true);
readTreeElement(child, in_, pf);
}
}
else
{
TreeElement child = e.getChild(childName, 0);
child.setRelevant(relevant);
if (relevant)
{
readTreeElement(child, in_, pf);
}
}
}
}
else
{
e.setValue((IAnswerData)ExtUtil.read(in_, new ExtWrapAnswerData(e.dataType)));
}
}
public XmlElement serializeNode(TreeElement instanceNode)
{
XmlElement e = theXmlDoc.CreateElement(instanceNode.getName());//TODO Name
//don't serialize template nodes or non-relevant nodes
if (!instanceNode.isRelevant() || instanceNode.getMult() == TreeReference.INDEX_TEMPLATE)
{
return(null);
}
if (instanceNode.getValue() != null)
{
Object serializedAnswer = serializer.serializeAnswerData(instanceNode.getValue(), instanceNode.dataType);
if (serializedAnswer is XmlElement)
{
e = (XmlElement)serializedAnswer;
}
else if (serializedAnswer is String)
{
e = e.OwnerDocument.CreateElement(instanceNode.getName());
XmlText xmlText = theXmlDoc.CreateTextNode((String)serializedAnswer); //TODO name
e.AppendChild(xmlText);
}
else
{
throw new SystemException("Can't handle serialized output for" + instanceNode.getValue().ToString() + ", " + serializedAnswer);
}
if (serializer.containsExternalData(instanceNode.getValue()))
{
IDataPointer[] pointer = serializer.retrieveExternalDataPointer(instanceNode.getValue());
for (int i = 0; i < pointer.Length; ++i)
{
dataPointers.Add(pointer[i]);
}
}
}
else
{
//make sure all children of the same tag name are written en bloc
ArrayList childNames = new ArrayList();
for (int i = 0; i < instanceNode.getNumChildren(); i++)
{
String childName = instanceNode.getChildAt(i).getName();
Console.WriteLine("CHILDNAME: " + childName);
if (!childNames.Contains(childName))
{
childNames.Add(childName);
}
}
for (int i = 0; i < childNames.Count; i++)
{
String childName = (String)childNames[i];
int mult = instanceNode.getChildMultiplicity(childName);
for (int j = 0; j < mult; j++)
{
XmlElement child = serializeNode(instanceNode.getChild(childName, j));
if (child != null)
{
e.AppendChild(child);
}
}
}
}
XmlElement e1 = e.OwnerDocument.CreateElement(instanceNode.getName());
e.ParentNode.ReplaceChild(e1, e);
// add hard-coded attributes
for (int i = 0; i < instanceNode.getAttributeCount(); i++)
{
String namespace_ = instanceNode.getAttributeNamespace(i);
String name = instanceNode.getAttributeName(i);
String val = instanceNode.getAttributeValue(i);
e.SetAttribute(name, namespace_, val);
}
return(e);
}