static String object2Groovy(Object o) throws UnsupportedOperationException {
Class<? extends Object> clazz = o.getClass();
for (StepDescriptor d : StepDescriptor.all()) {
if (d.clazz.equals(clazz)) {
StringBuilder b = new StringBuilder(d.getFunctionName());
Step step = (Step) o;
Map<String, Object> args = new TreeMap<String, Object>(d.defineArguments(step));
boolean first = true;
boolean singleMap = args.size() == 1 && args.values().iterator().next() instanceof Map;
for (Map.Entry<String, Object> entry : args.entrySet()) {
if (first) {
first = false;
if (d.takesImplicitBlockArgument() || singleMap) {
b.append('(');
} else {
b.append(' ');
}
} else {
b.append(", ");
}
String key = entry.getKey();
if (args.size() > 1 || !isDefaultKey(step, key)) {
b.append(key).append(": ");
}
render(b, entry.getValue());
}
if (d.takesImplicitBlockArgument()) {
if (!args.isEmpty()) {
b.append(')');
}
b.append(" {\n // some block\n}");
} else if (singleMap) {
b.append(')');
} else if (args.isEmpty()) {
b.append("()");
}
return b.toString();
}
}
throw new UnsupportedOperationException("Unknown step " + clazz);
}
