/** Insert an object into this variable at a position. */
@Override
public void insertAt(Variable v, Variable index) throws ScriptException {
if (v == null) throw new ScriptException(composeMessage("Can't insert a null object"));
if (index == null)
configurationNode.addChild(configurationNode.getChildCount(), v.getConfigurationNodeValue());
else {
int indexValue = index.getIntValue();
if (indexValue < 0 || indexValue > configurationNode.getChildCount())
throw new ScriptException(composeMessage("Insert out of bounds: " + indexValue));
configurationNode.addChild(indexValue, v.getConfigurationNodeValue());
}
}
@Override
public void setReference(Variable v) throws ScriptException {
if (index < 0 || index >= configurationNode.getChildCount())
throw new ScriptException(composeMessage("Index out of range: " + index));
ConfigurationNode confNode = v.getConfigurationNodeValue();
configurationNode.removeChild(index);
configurationNode.addChild(index, confNode);
}
@Override
public VariableReference plus(Variable v) throws ScriptException {
if (v == null) throw new ScriptException(composeMessage("Can't add a null object"));
ConfigurationNode node = v.getConfigurationNodeValue();
ConfigurationNode cn = new ConfigurationNode(configurationNode.getType());
cn.setValue(configurationNode.getValue());
Iterator<String> attIter = configurationNode.getAttributes();
while (attIter.hasNext()) {
String attrName = attIter.next();
String attrValue = configurationNode.getAttributeValue(attrName);
cn.setAttribute(attrName, attrValue);
}
int i = 0;
while (i < configurationNode.getChildCount()) {
ConfigurationNode child = configurationNode.findChild(i++);
cn.addChild(cn.getChildCount(), child);
}
cn.addChild(cn.getChildCount(), node);
return new VariableConfigurationNode(cn);
}