kg.apc.jmeter.functions.Env Maven / Gradle / Ivy
package kg.apc.jmeter.functions;
import kg.apc.jmeter.JMeterPluginsUtils;
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;
public class Env extends AbstractFunction {
private static final List desc = new LinkedList();
private static final String KEY = "__env";
// Number of parameters expected - used to reject invalid calls
private static final int MIN_PARAMETER_COUNT = 1;
private static final int MAX_PARAMETER_COUNT = 3;
static {
desc.add("Name of environment variable");
desc.add("Name of variable in which to store the result (optional)");
desc.add("Default value");
}
private CompoundVariable[] values;
/**
* No-arg constructor.
*/
public Env() {
}
/**
* {@inheritDoc}
*/
@Override
public synchronized String execute(SampleResult previousResult, Sampler currentSampler)
throws InvalidVariableException {
String propertyName = values[0].execute();
String propertyDefault = propertyName;
if (values.length > 2) { // We have a 3rd parameter
propertyDefault = values[2].execute();
}
String propertyValue = JMeterPluginsUtils.getEnvDefault(propertyName, propertyDefault);
if (values.length > 1) {
String variableName = values[1].execute();
if (variableName.length() > 0) {// Allow for empty name
final JMeterVariables variables = getVariables();
if (variables != null) {
variables.put(variableName, propertyValue);
}
}
}
return propertyValue;
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void setParameters(Collection parameters) throws InvalidVariableException {
checkParameterCount(parameters, MIN_PARAMETER_COUNT, MAX_PARAMETER_COUNT);
values = parameters.toArray(new CompoundVariable[0]);
}
/**
* {@inheritDoc}
*/
@Override
public String getReferenceKey() {
return KEY;
}
/**
* {@inheritDoc}
*/
@Override
public List getArgumentDesc() {
return desc;
}
}