/** Object output methods */
public String internalGraphToString() {
String out = new String();
VertexCollection sortedVertices = values.topologicalSort();
for (int i = 0; i < sortedVertices.size(); i++) {
out += ((DiscreteAttributeItem) sortedVertices.get(i).getContent()).getValue();
// As long as we're not on the last attribute
if (i < sortedVertices.size() - 1) {
if (Graph.relativePreference(sortedVertices.get(i), sortedVertices.get(i + 1))
== Graph.NATURALLY_EQUAL) {
out += " - ";
} else if (Graph.relativePreference(sortedVertices.get(i), sortedVertices.get(i + 1))
== Graph.NATURALLY_DIRECTED) {
out += " >> ";
} else if (Graph.relativePreference(sortedVertices.get(i), sortedVertices.get(i + 1))
== Graph.ARTIFICIALLY_DIRECTED) {
out += " > ";
}
}
}
return out;
}
public int getNumberOfValues() {
if (logger.isDebugEnabled()) {
logger.debug("Getting number of values for discrete attribute (" + super.getName() + ")");
logger.debug("Number of values is " + values.getNumberOfVertices());
}
return values.getNumberOfVertices();
}
public Vertex findVertex(String valueToFind) {
for (Vertex vertex : values.getVertexCollection()) {
if (((AttributeItem) vertex.getContent()).getAttributeType()
== Attribute.DISCRETE_ATTRIBUTE) {
if (((DiscreteAttributeItem) vertex.getContent()).getValue().equals(valueToFind)) {
return vertex;
}
}
}
return null;
}
public void setEquallyPreferred(String value1, String value2) {
if (logger.isDebugEnabled()) {
logger.debug(
"Attribute '"
+ super.getName()
+ "': Setting values '"
+ value1
+ "' and '"
+ value2
+ "' as equally preferred");
}
values.addEdge(findVertex(value1), findVertex(value2));
}
public void setPreferredOrdering(String value1, String value2) {
if (logger.isDebugEnabled()) {
logger.debug(
"Attribute '"
+ super.getName()
+ "': Setting preferred ordering between values '"
+ value1
+ "' and '"
+ value2
+ "'");
}
values.addDirectedEdge(findVertex(value1), findVertex(value2));
}
public void makeGraphFullyDirected(String method) {
values.makeGraphFullyDirected(method);
logger.debug("Graph has been made fully directed");
}
public int relativePreference(String value1, String value2) {
return Graph.relativePreference(findVertex(value1), findVertex(value2));
}
public void removeValueFromAttribute(String value) {
if (logger.isDebugEnabled()) {
logger.debug("Attribute '" + super.getName() + "': Removing value '" + value + "'");
}
values.removeVertex(findVertex(value));
}
/** Main methods */
public void addValueToAttribute(String value) {
if (logger.isDebugEnabled()) {
logger.debug("Attribute '" + super.getName() + "': Adding value '" + value + "'");
}
values.addVertex(new DiscreteAttributeItem(super.getName(), value));
}
public String showAllStuff() {
return values.showAllStuff();
}
public DiscreteAttributeItem getItemAt(int indexOfItem) {
VertexCollection sortedVertices = values.topologicalSort();
return (DiscreteAttributeItem) sortedVertices.get(indexOfItem).getContent();
}