private BindingContext createBindingContext() {
final PropertyContainer container =
PropertyContainer.createObjectBacked(
variableItem.variableConfig, new ParameterDescriptorFactory());
final BindingContext context = new BindingContext(container);
PropertyDescriptor descriptor = container.getDescriptor(PROPERTY_VARIABLE_NAME);
descriptor.setDescription("The name for the source band.");
descriptor.setValidator(new VariableNameValidator());
container.setDefaultValues();
return context;
}
private Map<String, Object> convertParameterMap(
String operatorName, Map<String, String> parameterMap) throws ValidationException {
HashMap<String, Object> parameters = new HashMap<String, Object>();
PropertyContainer container =
ParameterDescriptorFactory.createMapBackedOperatorPropertyContainer(
operatorName, parameters);
// explicitly set default values for putting them into the backing map
container.setDefaultValues();
// handle xml parameters
Object parametersObject = metadataResourceEngine.getVelocityContext().get("parameterFile");
if (parametersObject instanceof Resource) {
Resource paramatersResource = (Resource) parametersObject;
if (paramatersResource.isXml()) {
OperatorSpiRegistry operatorSpiRegistry = GPF.getDefaultInstance().getOperatorSpiRegistry();
OperatorSpi operatorSpi = operatorSpiRegistry.getOperatorSpi(operatorName);
Class<? extends Operator> operatorClass = operatorSpi.getOperatorClass();
DefaultDomConverter domConverter =
new DefaultDomConverter(operatorClass, new ParameterDescriptorFactory());
DomElement parametersElement = createDomElement(paramatersResource.getContent());
try {
domConverter.convertDomToValue(parametersElement, container);
} catch (ConversionException e) {
String msgPattern = "Can not convert XML parameters for operator '%s'";
throw new RuntimeException(String.format(msgPattern, operatorName));
}
}
}
for (Entry<String, String> entry : parameterMap.entrySet()) {
String paramName = entry.getKey();
String paramValue = entry.getValue();
final Property property = container.getProperty(paramName);
if (property != null) {
property.setValueFromText(paramValue);
} else {
throw new RuntimeException(
String.format("Parameter '%s' is not known by operator '%s'", paramName, operatorName));
}
}
return parameters;
}