package org.jbpm.gd.jpdl.xml;
import java.beans.PropertyChangeEvent;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.swt.widgets.Display;
import org.jbpm.gd.common.model.SemanticElement;
import org.jbpm.gd.common.xml.XmlAdapter;
import org.jbpm.gd.jpdl.model.Description;
import org.jbpm.gd.jpdl.model.Event;
import org.jbpm.gd.jpdl.model.ExceptionHandler;
import org.jbpm.gd.jpdl.model.NodeElement;
import org.jbpm.gd.jpdl.model.State;
import org.jbpm.gd.jpdl.model.Timer;
import org.jbpm.gd.jpdl.model.Transition;
public class StateDomAdapter extends XmlAdapter {
private static final String[] CHILD_ELEMENTS = {"description", "event", "exception-handler", "timer", "transition"};
private static HashMap NODE_TYPES = null;
protected String[] getChildElements() {
return CHILD_ELEMENTS;
}
protected Map getNodeTypes() {
if (NODE_TYPES == null) {
NODE_TYPES = new HashMap();
NODE_TYPES.put("description", "description");
NODE_TYPES.put("event", "event");
NODE_TYPES.put("exception-handler", "exception-handler");
NODE_TYPES.put("timer", "timer");
NODE_TYPES.put("transition", "transition");
}
return NODE_TYPES;
}
protected String getDefaultValue(String attributeName) {
if ("async".equals(attributeName)) {
return "false";
} else {
return super.getDefaultValue(attributeName);
}
}
public void initialize(SemanticElement jpdlElement) {
super.initialize(jpdlElement);
State state = (State)jpdlElement;
state.setAsync(getAttribute("async"));
state.setName(getAttribute("name"));
state.addPropertyChangeListener(this);
}
protected void initialize() {
super.initialize();
State state = (State)getSemanticElement();
if (state != null) {
setAttribute("async", state.getAsync());
setAttribute("name", state.getName());
addElement(state.getDescription());
addElements(state.getEvents());
addElements(state.getExceptionHandlers());
addElements(state.getTimers());
addElements(state.getTransitions());
}
}
protected void doPropertyChange(PropertyChangeEvent evt) {
if ("eventAdd".equals(evt.getPropertyName())) {
addElement((Event)evt.getNewValue());
} else if ("eventRemove".equals(evt.getPropertyName())) {
removeElement((Event)evt.getOldValue());
} else if ("exceptionHandlerAdd".equals(evt.getPropertyName())) {
addElement((ExceptionHandler)evt.getNewValue());
} else if ("exceptionHandlerRemove".equals(evt.getPropertyName())) {
removeElement((ExceptionHandler)evt.getOldValue());
} else if ("timerAdd".equals(evt.getPropertyName())) {
addElement((Timer)evt.getNewValue());
} else if ("timerRemove".equals(evt.getPropertyName())) {
removeElement((Timer)evt.getOldValue());
} else if ("transitionAdd".equals(evt.getPropertyName())) {
addElement((Transition)evt.getNewValue());
} else if ("transitionRemove".equals(evt.getPropertyName())) {
removeElement((Transition)evt.getOldValue());
} else if ("description".equals(evt.getPropertyName())) {
setElement("description", (SemanticElement)evt.getOldValue(), (Description)evt.getNewValue());
} else if ("async".equals(evt.getPropertyName())) {
setAttribute("async", (String)evt.getNewValue());
} else if ("name".equals(evt.getPropertyName())) {
setAttribute("name", (String)evt.getNewValue());
}
}
protected void doModelUpdate(String name, final String newValue) {
final State state = (State)getSemanticElement();
if ("name".equals(name)) {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
state.setName(newValue);
}
});
} else if ("async".equals(name)) {
state.setAsync(newValue);
}
}
protected void doModelAdd(XmlAdapter child) {
String type = child.getElementType();
SemanticElement jpdlElement = createSemanticElementFor(child);
child.initialize(jpdlElement);
State state = (State)getSemanticElement();
if ("event".equals(type)) {
state.addEvent((Event)jpdlElement);
} else if ("exception-handler".equals(type)) {
state.addExceptionHandler((ExceptionHandler)jpdlElement);
} else if ("timer".equals(type)) {
state.addTimer((Timer)jpdlElement);
} else if ("transition".equals(type)) {
state.addTransition((Transition)jpdlElement);
((Transition)jpdlElement).setSource((NodeElement)getSemanticElement());
} else if ("description".equals(getNodeType(type))) {
state.setDescription((Description)jpdlElement);
}
}
protected void doModelRemove(XmlAdapter child) {
String type = child.getElementType();
State state = (State)getSemanticElement();
if ("event".equals(type)) {
state.removeEvent((Event)child.getSemanticElement());
} else if ("exception-handler".equals(type)) {
state.removeExceptionHandler((ExceptionHandler)child.getSemanticElement());
} else if ("timer".equals(type)) {
state.removeTimer((Timer)child.getSemanticElement());
} else if ("transition".equals(type)) {
state.removeTransition((Transition)child.getSemanticElement());
} else if ("description".equals(getNodeType(type))) {
state.setDescription(null);
}
}
}