/** Test of getBindings method, of class Jsr223JRubyEngine. */
@Test
public void testGetBindings() throws ScriptException {
logger1.info("getBindings");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "persistent");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
instance.eval("p = 9.0");
instance.eval("q = Math.sqrt p");
Double expResult = 9.0;
int scope = ScriptContext.ENGINE_SCOPE;
Bindings result = instance.getBindings(scope);
assertEquals(expResult, (Double) result.get("p"), 0.01);
expResult = 3.0;
assertEquals(expResult, (Double) result.get("q"), 0.01);
scope = ScriptContext.GLOBAL_SCOPE;
result = instance.getBindings(scope);
// Bug of livetribe javax.script package impl.
// assertTrue(result instanceof SimpleBindings);
// assertEquals(0, result.size());
JRubyScriptEngineManager manager2 = new JRubyScriptEngineManager();
instance = (JRubyEngine) manager2.getEngineByName("jruby");
result = instance.getBindings(scope);
assertTrue(result instanceof SimpleBindings);
assertEquals(0, result.size());
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of getInterface method, of class Jsr223JRubyEngine. */
@Test
public void testGetInterface_Class() throws FileNotFoundException, ScriptException {
logger1.info("getInterface (no receiver)");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = (JRubyEngine) manager.getEngineByName("jruby");
}
Class returnType = RadioActiveDecay.class;
String filename = basedir + "/src/test/ruby/org/jruby/embed/ruby/radioactive_decay.rb";
Reader reader = new FileReader(filename);
Bindings bindings = instance.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("$h", 5715); // half-life of Carbon
instance.eval(reader);
double expResult = 8.857809480593293;
RadioActiveDecay result = (RadioActiveDecay) ((Invocable) instance).getInterface(returnType);
assertEquals(expResult, result.amountAfterYears(10.0, 1000), 0.000001);
expResult = 18984.81906228128;
assertEquals(expResult, result.yearsToAmount(10.0, 1.0), 0.000001);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of getInterface method, of class Jsr223JRubyEngine. */
@Test
public void testGetInterface_Object_Class() throws FileNotFoundException, ScriptException {
logger1.info("getInterface (with receiver)");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String filename = basedir + "/src/test/ruby/org/jruby/embed/ruby/position_function.rb";
Reader reader = new FileReader(filename);
Bindings bindings = instance.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("initial_velocity", 30.0);
bindings.put("initial_height", 30.0);
bindings.put("system", "metric");
Object receiver = instance.eval(reader, bindings);
Class returnType = PositionFunction.class;
PositionFunction result =
(PositionFunction) ((Invocable) instance).getInterface(receiver, returnType);
double expResult = 75.9;
double t = 3.0;
assertEquals(expResult, result.getPosition(t), 0.1);
expResult = 20.2;
t = 1.0;
assertEquals(expResult, result.getVelocity(t), 0.1);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of createBindings method, of class Jsr223JRubyEngine. */
@Test
public void testCreateBindings() {
logger1.info("createBindings");
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine instance = manager.getEngineByName("jruby");
Bindings bindings = instance.getBindings(ScriptContext.ENGINE_SCOPE);
Bindings result = instance.createBindings();
assertNotSame(bindings, result);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of compile method, of class Jsr223JRubyEngine. */
@Test
public void testCompile_Reader() throws Exception {
logger1.info("[compile reader]");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String filename = basedir + "/src/test/ruby/org/jruby/embed/ruby/proverbs_of_the_day.rb";
Reader reader = new FileReader(filename);
instance.put("$day", -1);
CompiledScript cs = ((Compilable) instance).compile(reader);
String result = (String) cs.eval();
String expResult = "A rolling stone gathers no moss.";
assertEquals(expResult, result);
result = (String) cs.eval();
expResult = "A friend in need is a friend indeed.";
assertEquals(expResult, result);
result = (String) cs.eval();
expResult = "Every garden may have some weeds.";
assertEquals(expResult, result);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of compile method, of class Jsr223JRubyEngine. */
@Test
public void testCompile_String() throws Exception {
logger1.info("[compile string]");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "global");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String script =
"def norman_window(x, y)\n"
+ "return get_area(x, y), get_perimeter(x, y)\n"
+ "end\n"
+ "def get_area(x, y)\n"
+ "x * y + Math::PI / 8.0 * x ** 2.0\n"
+ "end\n"
+ "def get_perimeter(x, y)\n"
+ "x + 2.0 * y + Math::PI / 2.0 * x\n"
+ "end\n"
+ "norman_window(2, 1)";
CompiledScript cs = ((Compilable) instance).compile(script);
List<Double> result = (List<Double>) cs.eval();
assertEquals(3.570796327, result.get(0), 0.000001);
assertEquals(7.141592654, result.get(1), 0.000001);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of eval method, of class Jsr223JRubyEngine. */
@Test
public void testEval_Reader_ScriptContext() throws Exception {
logger1.info("[eval Reader with ScriptContext]");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String filename = basedir + "/src/test/ruby/org/jruby/embed/ruby/list_printer.rb";
Reader reader = new FileReader(filename);
ScriptContext context = new SimpleScriptContext();
String[] big5 = {"Alaska", "Texas", "California", "Montana", "New Mexico"};
context.setAttribute("@list", Arrays.asList(big5), ScriptContext.ENGINE_SCOPE);
StringWriter sw = new StringWriter();
context.setWriter(sw);
instance.eval(reader, context);
String expResult = "Alaska >> Texas >> California >> Montana >> New Mexico: 5 in total";
assertEquals(expResult, sw.toString().trim());
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
@Test
public void putNullRefOnBindings() throws ScriptException {
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("x", null);
assertThat(engine.eval("is.null(x)"), CoreMatchers.<Object>equalTo(LogicalVector.TRUE));
}
/**
* Execute the script and return the ScriptResult corresponding. This method can add an additional
* user bindings if needed.
*
* @param aBindings the additional user bindings to add if needed. Can be null or empty.
* @param outputSink where the script output is printed to.
* @param errorSink where the script error stream is printed to.
* @return a ScriptResult object.
*/
public ScriptResult<E> execute(
Map<String, Object> aBindings, PrintStream outputSink, PrintStream errorSink) {
ScriptEngine engine = createScriptEngine();
if (engine == null)
return new ScriptResult<>(
new Exception("No Script Engine Found for name or extension " + scriptEngineLookup));
// SCHEDULING-1532: redirect script output to a buffer (keep the latest DEFAULT_OUTPUT_MAX_SIZE)
BoundedStringWriter outputBoundedWriter =
new BoundedStringWriter(outputSink, DEFAULT_OUTPUT_MAX_SIZE);
BoundedStringWriter errorBoundedWriter =
new BoundedStringWriter(errorSink, DEFAULT_OUTPUT_MAX_SIZE);
engine.getContext().setWriter(new PrintWriter(outputBoundedWriter));
engine.getContext().setErrorWriter(new PrintWriter(errorBoundedWriter));
Reader closedInput =
new Reader() {
@Override
public int read(char[] cbuf, int off, int len) throws IOException {
throw new IOException("closed");
}
@Override
public void close() throws IOException {}
};
engine.getContext().setReader(closedInput);
engine.getContext().setAttribute(ScriptEngine.FILENAME, scriptName, ScriptContext.ENGINE_SCOPE);
try {
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
// add additional bindings
if (aBindings != null) {
for (Entry<String, Object> e : aBindings.entrySet()) {
bindings.put(e.getKey(), e.getValue());
}
}
prepareBindings(bindings);
Object evalResult = engine.eval(getReader());
engine.getContext().getErrorWriter().flush();
engine.getContext().getWriter().flush();
// Add output to the script result
ScriptResult<E> result = this.getResult(evalResult, bindings);
result.setOutput(outputBoundedWriter.toString());
return result;
} catch (javax.script.ScriptException e) {
// drop exception cause as it might not be serializable
ScriptException scriptException = new ScriptException(e.getMessage());
scriptException.setStackTrace(e.getStackTrace());
return new ScriptResult<>(scriptException);
} catch (Throwable t) {
String stack = Throwables.getStackTraceAsString(t);
if (t.getMessage() != null) {
stack = t.getMessage() + System.lineSeparator() + stack;
}
return new ScriptResult<>(new Exception(stack));
}
}
public static String bindParameters(
final ScriptEngine iEngine,
final Map<Object, Object> iParameters,
Map<Object, Object> iCurrentParameters) {
if (iParameters != null && !iParameters.isEmpty())
// Every call to the function is a execution itself. Therefore, it requires a fresh set of
// input parameters.
// Therefore, clone the parameters map trying to recycle previous instances
for (Entry<Object, Object> param : iParameters.entrySet()) {
final String key = (String) param.getKey();
final Object objectToClone = param.getValue();
final Object previousItem = iCurrentParameters.get(key); // try to recycle it
final Object newItem = OGremlinHelper.cloneObject(objectToClone, previousItem);
iCurrentParameters.put(key, newItem);
}
String output = null;
if (iCurrentParameters != null)
for (Entry<Object, Object> param : iCurrentParameters.entrySet()) {
final String paramName = param.getKey().toString().trim();
if (paramName.equals(PARAM_OUTPUT)) {
output = param.getValue().toString();
continue;
}
iEngine.getBindings(ScriptContext.ENGINE_SCOPE).put(paramName, param.getValue());
}
return output;
}
/** Test of get method, of class Jsr223JRubyEngine. */
@Test
public void testGet() {
logger1.info("get");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
instance.put("abc", "aabc");
instance.put("@abc", "abbc");
instance.put("$abc", "abcc");
String key = "abc";
Object expResult = "aabc";
Object result = instance.get(key);
assertEquals(expResult, result);
List list = new ArrayList();
list.add("aabc");
instance.put("abc", list);
Map map = new HashMap();
map.put("Ruby", "Rocks");
instance.put("@abc", map);
result = instance.get(key);
assertEquals(expResult, ((List) result).get(0));
key = "@abc";
expResult = "Rocks";
result = instance.get(key);
assertEquals(expResult, ((Map) result).get("Ruby"));
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/**
* Invokes a function defined in the script.
*
* @param funcName The function name.
* @param params The parameter array.
* @return A boolean value representing whether the function is executed correctly. If the
* function cannot be found, or parameters don't match, {@code false} is returned.
*/
public boolean invokeFunction(String funcName, Object[] params) {
// Run script if it is dirty. This makes sure the script is run
// on the same thread as the caller (suppose the caller is always
// calling from the same thread).
checkDirty();
String statement = getInvokeStatement(funcName, params);
Bindings localBindings = mLocalEngine.getBindings(ScriptContext.ENGINE_SCOPE);
if (localBindings == null) {
localBindings = mLocalEngine.createBindings();
mLocalEngine.setBindings(localBindings, ScriptContext.ENGINE_SCOPE);
}
fillBindings(localBindings, params);
try {
mLocalEngine.eval(statement);
} catch (ScriptException e) {
return false;
} finally {
removeBindings(localBindings, params);
}
return true;
}
@Test
public void testClearVariables() throws ScriptException {
logger1.info("Clear Variables Test");
ScriptEngine instance = null;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "global");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
instance.put("gvar", ":Gvar");
String result = (String) instance.eval("$gvar");
assertEquals(":Gvar", result);
instance.getBindings(ScriptContext.ENGINE_SCOPE).remove("gvar");
instance
.getContext()
.setAttribute("org.jruby.embed.clear.variables", true, ScriptContext.ENGINE_SCOPE);
instance.eval("");
instance
.getContext()
.setAttribute("org.jruby.embed.clear.variables", false, ScriptContext.ENGINE_SCOPE);
result = (String) instance.eval("$gvar");
assertNull(result);
instance = null;
}
/** Test of invokeFunction method, of class Jsr223JRubyEngine. */
@Test
public void testInvokeFunction() throws Exception {
logger1.info("invokeFunction");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String filename = basedir + "/src/test/ruby/org/jruby/embed/ruby/count_down.rb";
Reader reader = new FileReader(filename);
Bindings bindings = new SimpleBindings();
bindings.put("@month", 6);
bindings.put("@day", 3);
instance.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
Object result = instance.eval(reader, bindings);
String method = "count_down_birthday";
bindings.put("@month", 12);
bindings.put("@day", 3);
instance.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
Object[] args = null;
result = ((Invocable) instance).invokeFunction(method, args);
assertTrue(((String) result).startsWith("Happy") || ((String) result).startsWith("You have"));
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/**
* Method to evaluate whether all required input parameters have been set.
*
* @return True if all input parameters have been bound to the engine. Else false.
*/
protected boolean ready() {
for (String parameter : request.inputBinding.values()) {
if (engine.getBindings(ScriptContext.ENGINE_SCOPE).containsKey(parameter) == false) {
LOG.debug("Script '" + request.name + "' Still missing dependency '" + parameter + "'.");
return false;
}
}
return true;
}
/** Test of getContext method, of class Jsr223JRubyEngine. */
@Test
public void testGetContext() {
logger1.info("getContext");
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine instance = manager.getEngineByName("jruby");
ScriptContext result = instance.getContext();
assertNotNull(result);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
@Test
public void testRebinding() throws ScriptException {
Bindings bindings = frege.getBindings(ENGINE_SCOPE);
bindings.put("bar :: Integer", new BigInteger("12312332142343244"));
final Object actual1 = frege.eval("bar + 3.big");
final Object expected1 = new BigInteger("12312332142343247");
bindings.put("bar :: String", "hello ");
final Object actual2 = frege.eval("bar ++ \"world\"");
final Object expected2 = "hello world";
assertEquals(expected1, actual1);
assertEquals(expected2, actual2);
}
/** Test of getFactory method, of class Jsr223JRubyEngine. */
@Test
public void testGetFactory() {
logger1.info("getFactory");
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine instance = manager.getEngineByName("jruby");
ScriptEngineFactory result = instance.getFactory();
assertTrue(result instanceof JRubyEngineFactory);
String expResult = "JSR 223 JRuby Engine";
String ret = result.getEngineName();
assertEquals(expResult, ret);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of put method, of class Jsr223JRubyEngine. */
@Test
public void testPut() {
logger1.info("put");
String key = "";
Object value = null;
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine instance = manager.getEngineByName("jruby");
try {
instance.put(key, value);
} catch (IllegalArgumentException e) {
String expResult = "key can not be empty";
assertEquals(expResult, e.getMessage());
}
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of setContext method, of class Jsr223JRubyEngine. */
@Test
public void testSetContext() {
logger1.info("setContext");
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine instance = manager.getEngineByName("jruby");
ScriptContext ctx = new SimpleScriptContext();
StringWriter sw = new StringWriter();
sw.write("Have a great summer!");
ctx.setWriter(sw);
instance.setContext(ctx);
ScriptContext result = instance.getContext();
Writer w = result.getWriter();
Object expResult = "Have a great summer!";
assertTrue(sw == result.getWriter());
assertEquals(expResult, (result.getWriter()).toString());
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
public Gauge getGauge(InputStream stream) {
GeneralPath path = new GeneralPath();
GaugeFactoryAPI api = new GaugeFactoryAPI();
InputStreamReader reader = new InputStreamReader(stream);
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByExtension("js");
Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("path", path);
bindings.put("self", api);
try {
engine.eval(reader, bindings);
} catch (Exception e) {
e.printStackTrace();
}
Gauge gauge = new Gauge(path, api.color);
return gauge;
}
/** Test of eval method, of class Jsr223JRubyEngine. */
@Test
public void testEval_Reader() throws Exception {
logger1.info("eval Reader");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.class.path", basedir + "/lib/ruby/1.9");
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "global");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String filename = basedir + "/src/test/ruby/org/jruby/embed/ruby/next_year.rb";
Reader reader = new FileReader(filename);
long expResult = getNextYear();
Object result = instance.eval(reader);
assertEquals(expResult, result);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of eval method, of class Jsr223JRubyEngine. */
@Test
public void testEval_String() throws Exception {
logger1.info("eval String");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "persistent");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
instance.getContext().setWriter(writer);
instance.eval("p=9.0");
instance.eval("q = Math.sqrt p");
instance.eval("puts \"square root of #{p} is #{q}\"");
Double expResult = 3.0;
Double result = (Double) instance.get("q");
assertEquals(expResult, result, 0.01);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of setBindings method, of class Jsr223JRubyEngine. */
@Test
public void testSetBindings() throws ScriptException {
logger1.info("setBindings");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String script = "def message\n" + "\"message: #{@message}\"\n" + "end\n" + "message";
Bindings bindings = new SimpleBindings();
bindings.put("@message", "What's up?");
int scope = ScriptContext.ENGINE_SCOPE;
Object expResult = "message: What's up?";
instance.setBindings(bindings, scope);
Object result = instance.eval(script);
assertEquals(expResult, result);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of eval method, of class Jsr223JRubyEngine. */
@Test
public void testEval_String_ScriptContext() throws Exception {
logger1.info("[eval String with ScriptContext]");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "global");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String script =
"def norman_window(x, y)\n"
+ "return get_area(x, y), get_perimeter(x, y)\n"
+ "end\n"
+ "def get_area(x, y)\n"
+ "x * y + Math::PI / 8.0 * x ** 2.0\n"
+ "end\n"
+ "def get_perimeter(x, y)\n"
+ "x + 2.0 * y + Math::PI / 2.0 * x\n"
+ "end\n"
+ "norman_window(1, 3)";
ScriptContext context = new SimpleScriptContext();
List<Double> expResult = new ArrayList();
expResult.add(3.392);
expResult.add(8.571);
List<Double> result = (List<Double>) instance.eval(script, context);
for (int i = 0; i < result.size(); i++) {
assertEquals(expResult.get(i), result.get(i), 0.01);
}
script = "def get_area\n" + "$x * $y + Math::PI / 8.0 * $x ** 2.0\n" + "end\n" + "get_area";
context.setAttribute("x", 1.0, ScriptContext.ENGINE_SCOPE);
context.setAttribute("y", 3.0, ScriptContext.ENGINE_SCOPE);
Double result2 = (Double) instance.eval(script, context);
assertEquals(expResult.get(0), result2, 0.01);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/**
* Выполняет скрипт
*
* @param script Тело скрипта / код
* @param language Язык скрипта (JavaScript)
* @param bindings Переменные для привязки/передачи данных
* @return Результат выполнения
* @throws ScriptException Ошибка исполнения скрипта
*/
public static Object eval(
String script, String language, Map<? extends String, ? extends Object> bindings)
throws ScriptException {
if (script == null) throw new IllegalArgumentException("script==null");
if (language == null) throw new IllegalArgumentException("language==null");
// if( bindings==null )throw new IllegalArgumentException("bindings==null");
ScriptEngine se = null;
Map<String, ScriptEngine> map = getMapScriptEngines();
if (map.containsKey(language)) {
se = map.get(language);
} else {
se = getScriptEngineManager().getEngineByName(language);
if (se == null)
throw new IllegalArgumentException(Text.template("language ({0}) not supported", language));
map.put(language, se);
}
Bindings seBindings = se.getBindings(javax.script.ScriptContext.ENGINE_SCOPE);
if (bindings != null) seBindings.putAll(bindings);
return se.eval(script);
}
/** Test of eval method, of class Jsr223JRubyEngine. */
@Test
public void testEval_Reader_Bindings() throws Exception {
logger1.info("eval Reader with Bindings");
ScriptEngine instance;
synchronized (this) {
System.setProperty("org.jruby.embed.class.path", basedir + "/lib/ruby/1.9");
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
String filename = basedir + "/src/test/ruby/org/jruby/embed/ruby/count_down.rb";
Reader reader = new FileReader(filename);
Bindings bindings = new SimpleBindings();
bindings.put("@month", 6);
bindings.put("@day", 2);
instance.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
String result = (String) instance.eval(reader, bindings);
assertTrue(result.startsWith("Happy") || result.startsWith("You have"));
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
/** Test of eval method, of class Jsr223JRubyEngine. */
@Test
public void testEval_String_ScriptContext2() throws Exception {
logger1.info("[eval String with ScriptContext 2]");
ScriptEngine instance = null;
synchronized (this) {
System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
ScriptEngineManager manager = new ScriptEngineManager();
instance = manager.getEngineByName("jruby");
}
ScriptContext context = new SimpleScriptContext();
String script =
"def get_area\n" + "@x * @y + Math::PI / 8.0 * @x ** 2.0\n" + "end\n" + "get_area";
context.setAttribute("@x", 1.0, ScriptContext.ENGINE_SCOPE);
context.setAttribute("@y", 3.0, ScriptContext.ENGINE_SCOPE);
Double expResult = 3.392;
Double result = (Double) instance.eval(script, context);
assertEquals(expResult, result, 0.01);
instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
instance = null;
}
@Override
public void execute(String line, PrintStream out, PrintStream err) {
if (scriptEngine == null) {
err.println(
"Frege ScriptEngine not found!\n"
+ "Make sure to make the Frege jar available in the classpath before trying to use it.\n"
+ "If you use the osgi-run Gradle plugin, add frege-interpreter-core as a systemLib dependency.");
} else {
Bindings bindings = scriptEngine.getBindings(ScriptContext.ENGINE_SCOPE);
bindings.put("out", out);
bindings.put("err", err);
bindings.put("ctx", bundleContext);
try {
@Nullable Object result = scriptEngine.eval(line.substring(getName().length() + 1));
if (result != null) {
out.println(result);
}
} catch (Throwable e) {
err.println(e.toString());
}
}
}
/**
* Invokes a function defined in the script.
*
* @param funcName The function name.
* @param params The parameter array.
* @return A boolean value representing whether the function is executed correctly. If the
* function cannot be found, or parameters don't match, {@code false} is returned.
*/
public boolean invokeFunction(String funcName, Object[] params) {
// Run script if it is dirty. This makes sure the script is run
// on the same thread as the caller (suppose the caller is always
// calling from the same thread).
checkDirty();
// Skip bad functions
if (isBadFunction(funcName)) {
return false;
}
String statement = getInvokeStatementCached(funcName, params);
Bindings localBindings = null;
synchronized (mEngineLock) {
localBindings = mLocalEngine.getBindings(ScriptContext.ENGINE_SCOPE);
if (localBindings == null) {
localBindings = mLocalEngine.createBindings();
mLocalEngine.setBindings(localBindings, ScriptContext.ENGINE_SCOPE);
}
}
fillBindings(localBindings, params);
try {
mLocalEngine.eval(statement);
} catch (ScriptException e) {
// The function is either undefined or throws, avoid invoking it later
addBadFunction(funcName);
return false;
} finally {
removeBindings(localBindings, params);
}
return true;
}
