kg.apc.jmeter.functions.DoubleSum Maven / Gradle / Ivy
package kg.apc.jmeter.functions;
import org.apache.jmeter.engine.util.CompoundVariable;
import org.apache.jmeter.functions.AbstractFunction;
import org.apache.jmeter.functions.InvalidVariableException;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.samplers.Sampler;
import org.apache.jmeter.threads.JMeterVariables;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
/**
* Provides a DoubleSum function that adds two or more Double values.
* Mostly copied from LongSum
*/
public class DoubleSum extends AbstractFunction {
private static final List desc = new LinkedList();
private static final String KEY = "__doubleSum";
static {
desc.add("First double to add");
desc.add("Second long to add - further doubles can be summed by adding further arguments");
desc.add("Name of variable in which to store the result (optional)");
}
private Object[] values;
/**
* No-arg constructor.
*/
public DoubleSum() {
}
/**
* {@inheritDoc}
*/
@Override
public synchronized String execute(SampleResult previousResult, Sampler currentSampler)
throws InvalidVariableException {
JMeterVariables vars = getVariables();
Double sum = 0D;
String varName = ((CompoundVariable) values[values.length - 1]).execute().trim();
for (int i = 0; i < values.length - 1; i++) {
sum += Double.parseDouble(((CompoundVariable) values[i]).execute());
}
try {
sum += Double.parseDouble(varName);
varName = null; // there is no variable name
} catch (NumberFormatException ignored) {
}
String totalString = Double.toString(sum);
if (vars != null && varName != null && varName.length() > 0) {// vars will be null on TestPlan
vars.put(varName, totalString);
}
return totalString;
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void setParameters(Collection parameters) throws InvalidVariableException {
checkMinParameterCount(parameters, 2);
values = parameters.toArray();
}
/**
* {@inheritDoc}
*/
@Override
public String getReferenceKey() {
return KEY;
}
/**
* {@inheritDoc}
*/
@Override
public List getArgumentDesc() {
return desc;
}
}