public class MyComputedRuntimeActionWidget extends Composite {
private PolicyActionJSO policyActionJso = null;
private TextBox valueBox = null;
private static final String WARNING_CSS = "loginTextBoxErrorBorder";
 
public MyComputedRuntimeActionWidget(String policyActionJson) {
FlowPanel container = new FlowPanel();
initWidget(container);
 
policyActionJso = getPolicyActionJso(policyActionJson);
if (policyActionJso == null) {
Label helloLabel = new Label("The JSON content is empty");
container.add(helloLabel);
return;
}
 
//Render widgets
container.add(getParametersView(policyActionJso));
}
 
private Widget getParametersView(PolicyActionJSO policyActionJso) {
FlowPanel parametersContainer = new FlowPanel();
 
JsArray<ParameterJSO> parameters = policyActionJso.getParameters();
if (parameters == null) {
return parametersContainer;
}
 
for (int i = 0; i < parameters.length(); i++) {
parametersContainer.add(getParameterView(parameters.get(i)));
}
 
return parametersContainer;
}
private Widget getParameterView(ParameterJSO parameterJso) {
FlowPanel parameterContainer = new FlowPanel();
Label nameLabel = new Label(parameterJso.getName());
parameterContainer.add(nameLabel);
 
valueBox = new TextBox();
valueBox.setLayoutData(parameterJso.getId());
 
String[] values = parameterJso.getValues();
if (values != null && values.length > 0) {
valueBox.setValue(values[0]);
}
 
parameterContainer.add(valueBox);
return parameterContainer;
}
public static native PolicyActionJSO getPolicyActionJso(String json) /*-{
return eval('(' + json + ')');
}-*/;
public String getJson() {
JsArray<ParameterJSO> parameters = policyActionJso.getParameters();
ParameterJSO parameterJso = null;
if (parameters != null && parameters.length() > 0) {
parameterJso = parameters.get(0);
 
String[] values = {valueBox.getValue()};
parameterJso.setValues(values);
}
 
return policyActionJso.toJSON();
}
public boolean isValid() {
String value = valueBox.getValue();
boolean isValid = (value != null && !"".equals(value));
if (!isValid) {
valueBox.addStyleName(WARNING_CSS);
} else {
valueBox.removeStyleName(WARNING_CSS);
}
 
return isValid;
}
}

public class MyComputedRuntimeActionParser extends
BasePolicyActionExtensionParser {
public MyComputedRuntimeActionParser(CentraSiteSession centraSiteSession,
CentraSitePolicyActionTemplate actionTemplate,
CentraSitePolicyActionInstance actionInstance) {
super(centraSiteSession, actionTemplate, actionInstance);
}
@Override
public CentraSitePolicyActionInstance getActionInstance(String json)
throws CLLException {
Gson gson = new Gson();
MyComputedRuntimeActionInfo = gson.fromJson(json,
MyComputedRuntimeActionInfo.class);
if (actionInfo == null) {
return null;
}
 
CentraSitePolicyActionInstance policyActionInstance = null;
CentraSiteObjectManager objectManager =
getCentraSiteSession().getCentraSiteObjectManager();
 
if (actionInfo.isActionInstance()) {
policyActionInstance = objectManager.getPolicyActionInstance(action
Info.getId());
} else {
policyActionInstance = objectManager.createPolicyActionInstance(act
ionInfo.getId());
}
 
if (policyActionInstance == null) {
return null;
}
 
setParameterValues(policyActionInstance, actionInfo);
return policyActionInstance;
}
private void setParameterValues(CentraSitePolicyActionInstance
policyActionInstance, MyComputedRuntimeActionInfo actionInfo)
throws CLLException {
List<MyComputedRuntimeParameterInfo> parameters = actionInfo.getParame
ters();
if (parameters == null || parameters.isEmpty()) {
return;
}
 
MyComputedRuntimeParameterInfo parameterInfo = parameters.get(0);
Collection<Object> convertedParameterValues = new ArrayList<Object>();
convertedParameterValues.addAll(parameterInfo.getValues());
policyActionInstance.setAttributeValue(parameterInfo.getId(),
convertedParameterValues);
}
@Override
public String getJson() throws CLLException {
Gson gson = new Gson();
 
MyComputedRuntimeActionInfo actionInfo = null;
if (getActionInstance() != null) {
CentraSitePolicyActionTemplate policyActionTemplate =
getActionInstance().getCentraSitePolicyActionTemplate();
actionInfo = new MyComputedRuntimeActionInfo(getActionInstance().g
etId(),
policyActionTemplate.getName());
actionInfo.setActionId(policyActionTemplate.getId());
actionInfo.setIsActionInstance(true);
} else if (getActionTemplate() != null) {
actionInfo = new MyComputedRuntimeActionInfo(getActionTemplate().g
etId(),
getActionTemplate().getName());
actionInfo.setActionId(getActionTemplate().getId());
}
 
fillParameterInfos(getActionTemplate(), actionInfo);
return (actionInfo != null ? gson.toJson(actionInfo) : null);
}
private void fillParameterInfos(CentraSitePolicyActionTemplate
actionTemplate,
MyComputedRuntimeActionInfo actionInfo) throws CLLException {
if (actionTemplate == null) {
return;
}
 
Collection<CentraSiteObjectAttribute> attributes = actionTemplate.getA
ttributes();
if (attributes == null || attributes.isEmpty()) {
return;
}
 
List<MyComputedRuntimeParameterInfo> parameters = new
ArrayList<MyComputedRuntimeParameterInfo>(attributes.size());
MyComputedRuntimeParameterInfo parameter = null;
for (CentraSiteObjectAttribute attribute : attributes) {
parameter = new MyComputedRuntimeParameterInfo(attribute.getName(),
attribute.getDisplayName());
parameters.add(parameter);
}
 
actionInfo.setParameters(parameters);
}
}