public TreeElement processSaved(FormInstance template, FormDef f)
{
TreeElement fixedInstanceRoot = template.getRoot().deepCopy(true);
TreeElement incomingRoot = root.getChildAt(0);
if (!fixedInstanceRoot.getName().Equals(incomingRoot.getName()) || incomingRoot.getMult() != 0)
{
throw new SystemException("Saved form instance to restore does not match form definition");
}
fixedInstanceRoot.populate(incomingRoot, f);
return(fixedInstanceRoot);
}
//rebuilding a node from an imported instance
// there's a lot of error checking we could do on the received instance, but it's
// easier to just ignore the parts that are incorrect
public void populate(TreeElement incoming, FormDef f)
{
if (this.isLeaf())
{
// check that incoming doesn't have children?
IAnswerData value = incoming.getValue();
if (value == null)
{
this.setValue(null);
}
else if (this.dataType == Constants.DATATYPE_TEXT ||
this.dataType == Constants.DATATYPE_NULL)
{
this.setValue(value); // value is a StringData
}
else
{
String textVal = value.ToString();
IAnswerData typedVal = RestoreUtils.xfFact.parseData(textVal, this.dataType, this.getRef(), f);
this.setValue(typedVal);
}
}
else
{
ArrayList names = new ArrayList();
for (int i = 0; i < this.getNumChildren(); i++)
{
TreeElement child = this.getChildAt(i);
if (!names.Contains(child.getName()))
{
names.Add(child.getName());
}
}
// remove all default repetitions from skeleton data model (_preserving_ templates, though)
for (int i = 0; i < this.getNumChildren(); i++)
{
TreeElement child = this.getChildAt(i);
if (child.repeatable && child.getMult() != TreeReference.INDEX_TEMPLATE)
{
this.removeChildAt(i);
i--;
}
}
// make sure ordering is preserved (needed for compliance with xsd schema)
if (this.getNumChildren() != names.Count)
{
throw new SystemException("sanity check failed");
}
for (int i = 0; i < this.getNumChildren(); i++)
{
TreeElement child = this.getChildAt(i);
String expectedName = (String)names[i];
if (!child.getName().Equals(expectedName))
{
TreeElement child2 = null;
int j;
for (j = i + 1; j < this.getNumChildren(); j++)
{
child2 = this.getChildAt(j);
if (child2.getName().Equals(expectedName))
{
break;
}
}
if (j == this.getNumChildren())
{
throw new SystemException("sanity check failed");
}
this.removeChildAt(j);
this.children.Insert(i, child2);
}
}
// java i hate you so much
for (int i = 0; i < this.getNumChildren(); i++)
{
TreeElement child = this.getChildAt(i);
List <TreeElement> newChildren = incoming.getChildrenWithName(child.getName());
if (child.repeatable)
{
for (int k = 0; k < newChildren.Count; k++)
{
TreeElement newChild = child.deepCopy(true);
newChild.setMult(k);
this.children.Insert(i + k + 1, newChild);
newChild.populate((TreeElement)newChildren[k], f);
}
i += newChildren.Count;
}
else
{
if (newChildren.Count == 0)
{
child.setRelevant(false);
}
else
{
child.populate((TreeElement)newChildren[0], f);
}
}
}
}
}