@Override
public String[] getTargetVarNames(AggregatorConfig aggregatorConfig) {
Config config = (Config) aggregatorConfig;
String targetName =
StringUtils.isNotNullAndNotEmpty(config.targetName) ? config.targetName : config.varName;
int percentage = getEffectivePercentage(config.percentage);
return createFeatureNames(targetName, "p" + percentage);
}
@Override
public Aggregator createAggregator(VariableContext varCtx, AggregatorConfig aggregatorConfig) {
Config config = (Config) aggregatorConfig;
String targetName =
StringUtils.isNotNullAndNotEmpty(config.targetName) ? config.targetName : config.varName;
int effectivePercentage = getEffectivePercentage(config.percentage);
return new AggregatorPercentile(varCtx, config.varName, targetName, effectivePercentage);
}
@Override
protected boolean verifyUserInput() {
String expression =
variableItem.variableConfig.getExpr() != null
? variableItem.variableConfig.getExpr().trim()
: "";
if (StringUtils.isNullOrEmpty(expression)) {
JOptionPane.showMessageDialog(
getParent(), "The source band could not be created. The expression is empty.");
return false;
}
String variableName =
variableItem.variableConfig.getName() != null
? variableItem.variableConfig.getName().trim()
: "";
if (StringUtils.isNullOrEmpty(variableName)) {
JOptionPane.showMessageDialog(
getParent(), "The source band could not be created. The name is empty.");
return false;
}
if (newVariable && contextProduct.containsBand(variableName)) {
String message =
String.format(
"A source band or band with the name '%s' is already defined", variableName);
JOptionPane.showMessageDialog(getParent(), message);
return false;
}
try {
BandArithmetic.getValidMaskExpression(expression, new Product[] {contextProduct}, 0, null);
} catch (ParseException e) {
String errorMessage =
"The source band could not be created.\nThe expression could not be parsed:\n"
+ e.getMessage(); /*I18N*/
JOptionPane.showMessageDialog(getParent(), errorMessage);
return false;
}
return true;
}