/**
* According to the requirement, correspondingly perform isset, unset or set function.
*
* @param frag one string fragment in the path
* @param path the String representation of path based access
* @param caller the DataObject that pass path information in
* @param value the value to be set as the target property's value
* @param lastSlashIndex the last index of '/' in the path string
* @param convertValue boolean used for set if we should convert the value
* @param _case an int value indicating what kind of operation to use: set, isset or unset.
* @return true if operation is isset and property's value is set, otherwise false.
*/
private boolean setIsSetUnSet(
String frag,
String path,
DataObject caller,
Object value,
int lastSlashIndex,
boolean convertValue,
int _case) {
int indexOfDot = frag.lastIndexOf('.');
int indexOfOpenBracket = frag.lastIndexOf('[');
int indexOfCloseBracket = frag.lastIndexOf(']');
int numInLastProperty =
getNumberInFrag(frag, indexOfDot, indexOfOpenBracket, indexOfCloseBracket);
String lastPropertyName =
getPropertyNameInFrag(
frag,
numInLastProperty,
indexOfDot,
indexOfOpenBracket); // get last property name on path for case 1
DataObject lastDataObject;
if (-1 < lastSlashIndex) {
Object lastObject =
get(path.substring(0, lastSlashIndex), caller); // get last dataobject on path
// If trying to access a list element from a null list, this object will be
// an instance of ListWrapper, not DataObject, but the error message is the same
// as if it was a null DataObject
if (lastObject == null || lastObject instanceof ListWrapper) {
throw SDOException.cannotPerformOperationOnProperty(lastPropertyName, path);
}
lastDataObject = (SDODataObject) lastObject;
} else {
lastDataObject = caller;
}
Property lastProperty =
lastDataObject.getInstanceProperty(lastPropertyName); // get property of this dataobject
switch (_case) {
case SET:
if (lastProperty == null) {
lastProperty =
((SDODataObject) lastDataObject).defineOpenContentProperty(lastPropertyName, value);
}
if (lastProperty != null) {
set(lastProperty, lastDataObject, numInLastProperty, value, convertValue);
}
return false;
case ISSET:
if (lastProperty == null) {
return false;
}
return isSet(lastProperty, lastDataObject);
case UNSET:
if (lastProperty == null) {
return false;
}
unSet(lastProperty, lastDataObject, numInLastProperty);
return false;
default:
return false;
}
}
