public virtual System.String serializeNode(TreeElement instanceNode)
{
StringBuilder b = new StringBuilder();
// don't serialize template nodes or non-relevant nodes
if (!instanceNode.isRelevant() || instanceNode.Mult == TreeReference.INDEX_TEMPLATE)
{
return(null);
}
if (instanceNode.Value != null)
{
System.Object serializedAnswer = serializer.serializeAnswerData(instanceNode.Value, instanceNode.DataType);
if (serializedAnswer is Element)
{
// DON"T handle this.
//UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Object.toString' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
throw new System.SystemException("Can't handle serialized output for" + instanceNode.Value.ToString() + ", " + serializedAnswer);
}
else if (serializedAnswer is System.String)
{
Element e = new Element();
e.addChild(Node.TEXT, (System.String)serializedAnswer);
System.String tag = instanceNode.getAttributeValue("", "tag");
if (tag != null)
{
b.append(tag);
}
b.append(delimiter);
for (int k = 0; k < e.getChildCount(); k++)
{
b.append(e.getChild(k).toString());
b.append(delimiter);
}
}
else
{
//UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Object.toString' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
throw new System.SystemException("Can't handle serialized output for" + instanceNode.Value.ToString() + ", " + serializedAnswer);
}
if (serializer.containsExternalData(instanceNode.Value))
{
IDataPointer[] pointer = serializer.retrieveExternalDataPointer(instanceNode.Value);
for (int i = 0; i < pointer.Length; ++i)
{
dataPointers.Add(pointer[i]);
}
}
}
return(b.toString());
}
/// <summary> Determine if the current FormIndex is relevant. Only relevant indexes
/// should be returned when filling out a form.
///
/// </summary>
/// <param name="index">
/// </param>
/// <returns> true if current element at FormIndex is relevant
/// </returns>
public virtual bool isIndexRelevant(FormIndex index)
{
TreeReference ref_Renamed = form.getChildInstanceRef(index);
bool isAskNewRepeat = (getEvent(index) == FormEntryController.EVENT_PROMPT_NEW_REPEAT);
bool isRepeatJuncture = (getEvent(index) == FormEntryController.EVENT_REPEAT_JUNCTURE);
bool relevant;
if (isAskNewRepeat)
{
relevant = form.isRepeatRelevant(ref_Renamed) && form.canCreateRepeat(ref_Renamed, index);
//repeat junctures are still relevant if no new repeat can be created; that option
//is simply missing from the menu
}
else if (isRepeatJuncture)
{
relevant = form.isRepeatRelevant(ref_Renamed);
}
else
{
TreeElement node = form.MainInstance.resolveReference(ref_Renamed);
relevant = node.isRelevant(); // check instance flag first
}
if (relevant)
{
// if instance flag/condition says relevant, we still
// have to check the <group>/<repeat> hierarchy
FormIndex ancestorIndex = index;
while (!ancestorIndex.isTerminal())
{
// This should be safe now that the TreeReference is contained
// in the ancestor index itself
TreeElement ancestorNode = form.MainInstance.resolveReference(ancestorIndex.LocalReference);
if (!ancestorNode.isRelevant())
{
relevant = false;
break;
}
ancestorIndex = ancestorIndex.NextLevel;
}
}
return(relevant);
}
//
// boolean nodeset = forceNodeset;
// if (!nodeset) {
// //is this a nodeset? it is if the ref contains any unbound multiplicities AND the unbound nodes are repeatable
// //the way i'm calculating this sucks; there has got to be an easier way to find out if a node is repeatable
// TreeReference repeatTestRef = TreeReference.rootRef();
// for (int i = 0; i < ref.size(); i++) {
// repeatTestRef.add(ref.getName(i), ref.getMultiplicity(i));
// if (ref.getMultiplicity(i) == TreeReference.INDEX_UNBOUND) {
// if (m.getTemplate(repeatTestRef) != null) {
// nodeset = true;
// break;
// }
// }
// }
// }
public static System.Object getRefValue(FormInstance model, EvaluationContext ec, TreeReference ref_Renamed)
{
if (ec.isConstraint && ref_Renamed.Equals(ec.ContextRef))
{
//ITEMSET TODO: need to update this; for itemset/copy constraints, need to simulate a whole xml sub-tree here
return(unpackValue(ec.candidateValue));
}
else
{
TreeElement node = model.resolveReference(ref_Renamed);
if (node == null)
{
//shouldn't happen -- only existent nodes should be in nodeset
throw new XPathTypeMismatchException("Node " + ref_Renamed.ToString() + " does not exist!");
}
return(unpackValue(node.isRelevant()?node.Value:null));
}
}
public static System.Object getValue(System.String xpath, TreeReference context, FormInstance tree)
{
TreeElement node = tree.resolveReference(ref_Renamed(xpath).contextualize(context));
if (node == null)
{
throw new System.SystemException("Could not find node [" + xpath + "] when parsing saved instance!");
}
if (node.isRelevant())
{
IAnswerData val = node.getValue();
return(val == null ? null : val.Value);
}
else
{
return(null);
}
}
public virtual Element serializeNode(TreeElement instanceNode)
{
Element e = new Element(); //don't set anything on this element yet, as it might get overwritten
//don't serialize template nodes or non-relevant nodes
if ((respectRelevance && !instanceNode.isRelevant()) || instanceNode.Mult == TreeReference.INDEX_TEMPLATE)
{
return(null);
}
if (instanceNode.Value != null)
{
System.Object serializedAnswer = serializer.serializeAnswerData(instanceNode.Value, instanceNode.DataType);
if (serializedAnswer is Element)
{
e = (Element)serializedAnswer;
}
else if (serializedAnswer is System.String)
{
e = new Element();
e.addChild(Node.TEXT, (System.String)serializedAnswer);
}
else
{
//UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Object.toString' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
throw new System.SystemException("Can't handle serialized output for" + instanceNode.Value.ToString() + ", " + serializedAnswer);
}
if (serializer.containsExternalData(instanceNode.Value))
{
IDataPointer[] pointer = serializer.retrieveExternalDataPointer(instanceNode.Value);
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
System.Collections.ArrayList childNames = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
for (int i = 0; i < instanceNode.NumChildren; i++)
{
System.String childName = instanceNode.getChildAt(i).Name;
if (!childNames.Contains(childName))
{
childNames.Add(childName);
}
}
for (int i = 0; i < childNames.Count; i++)
{
System.String childName = (System.String)childNames[i];
int mult = instanceNode.getChildMultiplicity(childName);
for (int j = 0; j < mult; j++)
{
Element child = serializeNode(instanceNode.getChild(childName, j));
if (child != null)
{
e.addChild(Node.ELEMENT, child);
}
}
}
}
e.setName(instanceNode.Name);
// add hard-coded attributes
for (int i = 0; i < instanceNode.AttributeCount; i++)
{
System.String namespace_Renamed = instanceNode.getAttributeNamespace(i);
System.String name = instanceNode.getAttributeName(i);
System.String val = instanceNode.getAttributeValue(i);
// is it legal for getAttributeValue() to return null? playing it safe for now and assuming yes
if (val == null)
{
val = "";
}
e.setAttribute(namespace_Renamed, name, val);
}
if (instanceNode.Namespace != null)
{
e.setNamespace(instanceNode.Namespace);
}
return(e);
}
