private ComponentSet addComponents(
Map<String, Connectable> connectables, int rows, int cols, Elements componentElements) {
ComponentSet set;
set = new ComponentSet(cols, rows);
for (int i = 0; i < componentElements.size(); i++) {
Element componentElement = componentElements.get(i);
String type = componentElement.getAttributeValue("type");
String name = componentElement.getAttributeValue("name");
Connectable connectable = factory.make(type, name);
if (connectable != null) {
connectables.put(name, connectable);
if (connectable instanceof Component) {
Component component = (Component) connectable;
component.setxLoc(Integer.parseInt(componentElement.getAttributeValue("col")));
component.setyLoc(Integer.parseInt(componentElement.getAttributeValue("row")));
component.setInverted(Boolean.parseBoolean(componentElement.getAttributeValue("inv")));
set.addComponent(component);
} else if (connectable instanceof Endpoint) {
set.addEndpoint((Endpoint) connectable);
}
}
}
return set;
}
protected ComponentSet loadSet(File componentsDef, File connectionsDef) {
ComponentSet set = null;
// for collecting all connectables
Map<String, Connectable> connectables = new HashMap<String, Connectable>();
try {
// open the components.xml file
Builder builder = new Builder();
Document doc = builder.build(componentsDef);
Element componentsRoot = doc.getRootElement();
int rows = Integer.parseInt(componentsRoot.getAttributeValue("rows"));
int cols = Integer.parseInt(componentsRoot.getAttributeValue("cols"));
boolean autoLocate = Boolean.parseBoolean(componentsRoot.getAttributeValue("autoLocate"));
// add connectables (components need to be located in the set,
// endpoints are not so they are just added to the connectables map
Elements componentElements = componentsRoot.getChildElements();
if (autoLocate) {
set = addComponentsWithAutoLocate(connectables, rows, cols, componentElements);
} else {
set = addComponents(connectables, rows, cols, componentElements);
}
doc = builder.build(connectionsDef);
Element connectionsRoot = doc.getRootElement();
// add connections
Elements connections = connectionsRoot.getChildElements();
for (int i = 0; i < connections.size(); i++) {
Element c = connections.get(i);
String from = c.getAttributeValue("from");
String to = c.getAttributeValue("to");
String fromPinLabel = c.getAttributeValue("fromPin");
String toPinLabel = c.getAttributeValue("toPin");
Connectable fromComp = connectables.get(from);
Connectable toComp = connectables.get(to);
Collection<Pin> fromPins = fromComp.getPins(fromPinLabel);
Collection<Pin> toPins = toComp.getPins(toPinLabel);
Connection con = new Connection(fromComp, fromPins, toComp, toPins);
set.addConnection(con);
}
} catch (ParsingException ex) {
System.err.println("malformed XML file : " + ex.getMessage());
} catch (IOException ex) {
System.err.println("io error : " + ex.getMessage());
}
return set;
}
public void writeToFile(File file, ComponentSet set) {
// add Components
Element componentRoot = new Element("components");
componentRoot.addAttribute(new Attribute("autoLocate", "false"));
componentRoot.addAttribute(new Attribute("rows", Integer.toString(set.getSizeY())));
componentRoot.addAttribute(new Attribute("cols", Integer.toString(set.getSizeX())));
Map<Location, Component> componentPositions = set.getComponentPositions();
for (Location loc : componentPositions.keySet()) {
Component c = componentPositions.get(loc);
Element componentElement = new Element("component");
componentElement.addAttribute(new Attribute("type", c.getId()));
componentElement.addAttribute(new Attribute("name", c.getName()));
componentElement.addAttribute(new Attribute("row", Integer.toString(loc.getY())));
componentElement.addAttribute(new Attribute("col", Integer.toString(loc.getX())));
componentElement.addAttribute(new Attribute("inv", Boolean.toString(c.isInverted())));
componentRoot.appendChild(componentElement);
}
// add Endpoints
Set<Endpoint> endpointSet = set.getEndpoints();
for (Endpoint e : endpointSet) {
Element endpointElement = new Element("endpoint");
endpointElement.addAttribute(new Attribute("type", e.getId()));
endpointElement.addAttribute(new Attribute("name", e.getName()));
componentRoot.appendChild(endpointElement);
}
Document doc = new Document(componentRoot);
try {
OutputStream os = new FileOutputStream(file);
Serializer serializer = new Serializer(os, "ISO-8859-1");
serializer.setIndent(4);
serializer.setMaxLength(120);
serializer.write(doc);
} catch (IOException e) {
System.err.println("io error : " + e.getMessage());
}
}
private ComponentSet addComponentsWithAutoLocate(
Map<String, Connectable> connectables, int rows, int cols, Elements componentElements) {
ComponentSet set;
set = new AutoAddComponentSet(cols, rows);
for (int i = 0; i < componentElements.size(); i++) {
Element componentElement = componentElements.get(i);
String type = componentElement.getAttributeValue("type");
String name = componentElement.getAttributeValue("name");
Connectable connectable = factory.make(type, name);
if (connectable != null) {
connectables.put(name, connectable);
if (connectable instanceof Component) {
((AutoAddComponentSet) set).addComponent((Component) connectable);
} else if (connectable instanceof Endpoint) {
set.addEndpoint((Endpoint) connectable);
}
}
}
return set;
}