package kg.apc.jmeter.functions;
import org.apache.commons.codec.binary.Base64;
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 Base64Decode extends AbstractFunction {
private static final List<String> desc = new LinkedList<String>();
private static final String KEY = "__base64Decode";
// Number of parameters expected - used to reject invalid calls
private static final int MIN_PARAMETER_COUNT = 1;
private static final int MAX_PARAMETER_COUNT = 2;
static {
desc.add("Base64 string to be decoded");
desc.add("Name of variable in which to store the result (optional)");
}
private CompoundVariable[] values;
@Override
public synchronized String execute(SampleResult previousResult, Sampler currentSampler)
throws InvalidVariableException {
String sourceString = values[0].execute();
String decodedValue = new String(Base64.decodeBase64(sourceString));
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, decodedValue);
}
}
}
return decodedValue;
}
@Override
public synchronized void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException {
checkParameterCount(parameters, MIN_PARAMETER_COUNT, MAX_PARAMETER_COUNT);
values = parameters.toArray(new CompoundVariable[parameters.size()]);
}
@Override
public String getReferenceKey() {
return KEY;
}
@Override
public List<String> getArgumentDesc() {
return desc;
}
}