public Object eval(ScriptEngine engine, String script, ScriptContext context)
throws ScriptException {
if (engine instanceof Compilable && Config.SCRIPT_ALLOW_COMPILATION) {
Compilable eng = (Compilable) engine;
CompiledScript cs = eng.compile(script);
return context != null ? cs.eval(context) : cs.eval();
} else return context != null ? engine.eval(script, context) : engine.eval(script);
}
@Test
public void putNullRef() throws ScriptException {
engine.put("x", 42);
assertThat(engine.eval("x == 42"), CoreMatchers.<Object>equalTo(LogicalVector.TRUE));
engine.put("x", null);
assertThat(engine.eval("is.null(x)"), CoreMatchers.<Object>equalTo(LogicalVector.TRUE));
}
static void nashornInvokeMethod(String code) throws ScriptException, NoSuchMethodException {
ScriptEngineManager factory = new ScriptEngineManager();
ScriptEngine engine = factory.getEngineByName("nashorn");
engine.eval(code);
Invocable inv = (Invocable) engine;
JSObject propertiesDict = (JSObject) engine.get("properties");
Object result = null;
Object property;
long total = 0;
for (int i = 0; i < RUNS; ++i) {
long start = System.nanoTime();
for (int j = 0; j < BATCH; ++j) {
property = propertiesDict.getMember("ssn");
result = inv.invokeMethod(property, "clean", "12345678");
}
long stop = System.nanoTime();
System.out.println(
"Run "
+ (i * BATCH + 1)
+ "-"
+ ((i + 1) * BATCH)
+ ": "
+ Math.round((stop - start) / BATCH / 1000)
+ " us");
total += (stop - start);
}
System.out.println("Average run: " + Math.round(total / RUNS / BATCH / 1000) + " us");
System.out.println(
"Data is " + ((Invocable) engine).invokeMethod(result, "toString").toString());
}
@Test
public void putPrimitiveLongArray() throws ScriptException {
long[] longs = new long[] {1, 2, 3, 4, 5};
engine.put("longs", longs);
IntArrayVector lav = (IntArrayVector) engine.eval("as.integer(longs)");
assertThat(lav.length(), equalTo(5));
}
@Test
public void putPrimitiveDoubleArray() throws ScriptException {
double[] doubles = new double[] {1.0, 2.0, 3.0, 4.0, 5.0};
engine.put("doubles", doubles);
DoubleArrayVector dav = (DoubleArrayVector) engine.eval("as.double(doubles)");
assertThat(dav.length(), equalTo(5));
}
@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));
}
private void processJSONPayload(MessageContext synCtx, ScriptMessageContext scriptMC)
throws ScriptException {
if (!(synCtx instanceof Axis2MessageContext)) {
return;
}
org.apache.axis2.context.MessageContext messageContext =
((Axis2MessageContext) synCtx).getAxis2MessageContext();
String contentType = (String) messageContext.getProperty(Constants.Configuration.MESSAGE_TYPE);
if ("application/json".equals(contentType)) {
String jsonString = (String) messageContext.getProperty("JSON_STRING");
InputStream jsonStream = (InputStream) messageContext.getProperty("JSON_STREAM");
String jsonPayload = "{}";
prepareForJSON(scriptMC);
if (jsonString != null) {
jsonPayload = jsonParser.parse(jsonString).toString();
} else if (jsonStream != null) {
try {
jsonString =
IOUtils.toString(
jsonStream,
(String)
messageContext.getProperty(Constants.Configuration.CHARACTER_SET_ENCODING));
jsonPayload = jsonParser.parse(jsonString).toString();
} catch (IOException e) {
handleException("Failed to get the JSON payload string from the input stream.");
}
messageContext.setProperty("JSON_STRING", jsonPayload);
}
Object jsonObject = scriptEngine.eval('(' + jsonPayload + ')');
synCtx.setProperty("JSON_OBJECT", jsonObject);
}
}
@Test
public void putPrimitiveIntegerArray() throws ScriptException {
int[] integers = new int[] {1, 2, 3, 4, 5};
engine.put("integers", integers);
IntArrayVector iav = (IntArrayVector) engine.eval("as.integer(integers)");
System.out.println(iav);
assertThat(iav.length(), equalTo(5));
}
@Test
public void invokeFunction() throws ScriptException, NoSuchMethodException {
engine.eval("f <- function(x) sqrt(x)");
DoubleVector result = (DoubleVector) invocableEngine.invokeFunction("f", 4);
assertThat(result.length(), equalTo(1));
assertThat(result.get(0), equalTo(2d));
}
@Test
public void invokeMethod() throws ScriptException, NoSuchMethodException {
Object obj = engine.eval("list(execute=sqrt)");
DoubleVector result = (DoubleVector) invocableEngine.invokeMethod(obj, "execute", 16);
assertThat(result.length(), equalTo(1));
assertThat(result.get(0), equalTo(4d));
}
@Test
public void getInterface() throws ScriptException {
engine.eval("calculate <- function(x) sqrt(x)");
Calculator calculator = invocableEngine.getInterface(Calculator.class);
assertThat(calculator.calculate(64), equalTo(8d));
}
/** Will load the script source from the provided filename. */
public static void loadScript(String script_name) {
try {
js_engine.eval(new java.io.FileReader(script_name));
} catch (ScriptException se) {
se.printStackTrace();
} catch (java.io.IOException iox) {
iox.printStackTrace();
}
}
private static void eval(ScriptEngine engine, String name) throws Exception {
/*
* This class is compiled into a jar file. The jar file
* contains few scripts under /resources URL.
*/
InputStream is = Main.class.getResourceAsStream("/resources/" + name);
// current script file name for better error messages
engine.put(ScriptEngine.FILENAME, name);
// evaluate the script in the InputStream
engine.eval(new InputStreamReader(is));
}
@Test
public void putJavaObject() throws ScriptException {
// create a script engine manager
RenjinScriptEngineFactory factory = new RenjinScriptEngineFactory();
// create an R engine
ScriptEngine engine = factory.getScriptEngine();
HashMap<String, String> h = new HashMap<String, String>();
engine.put("h", h);
engine.eval("import(java.util.HashMap) \n" + " print(h$size())");
}
boolean init_functions() {
GenericDialog gd = new GenericDialog("Fitting Options");
gd.addStringField("Extra Definitions", exdef, 50);
gd.addCheckbox("Weight Using Plot Errors", false);
gd.addStringField("Weighting Equation (y is for data)", weightfunction, 50);
gd.addStringField("Fit_Equation", function, 50);
gd.showDialog();
if (gd.wasCanceled()) {
return false;
}
exdef = gd.getNextString();
boolean errweights = gd.getNextBoolean();
weightfunction = gd.getNextString();
function = gd.getNextString();
// first initialize the weights
weights = new float[tempdata.length];
if (errweights
|| weightfunction.equals("")
|| weightfunction == null
|| weightfunction == "1.0") {
if (errweights) {
for (int i = 0; i < tempdata.length; i++) weights[i] = 1.0f / (errs[i] * errs[i]);
} else {
for (int i = 0; i < tempdata.length; i++) weights[i] = 1.0f;
}
} else {
for (int i = 0; i < tempdata.length; i++) {
String script =
"y =" + tempdata[i] + "; " + "x =" + tempx[i] + "; " + "retval=" + weightfunction + ";";
Double temp = new Double(0.0);
try {
temp = (Double) engine.eval(script);
} catch (Exception e) {
IJ.log(e.getMessage());
}
if (!(temp.isInfinite() || temp.isNaN())) {
weights[i] = temp.floatValue();
}
}
}
// now compile the function script
try {
String script1 = exdef + "; retval=" + function + ";";
cs = ce.compile(script1);
} catch (Exception e) {
IJ.log(e.toString());
return false;
}
return true;
}
public static void main(String[] args) throws Exception {
if (args.length == 0) {
System.out.println("No file specified");
return;
}
InputStreamReader r = new InputStreamReader(new FileInputStream(args[0]));
ScriptEngine engine = new EmbeddedRhinoScriptEngine();
SimpleScriptContext context = new SimpleScriptContext();
engine.put(ScriptEngine.FILENAME, args[0]);
engine.eval(r, context);
context.getWriter().flush();
}
/**
* Method for receiving an input parameter and evaluating the value of the script. The method will
* only evaluate the script if all input parameters have been received.
*
* @param in A parameter required to evaluate the script.
* @return A parameter holding the return value of the script. May be null if the script could not
* evaluate.
*/
public Named calculate(Named in) {
LOG.debug(
"Script '"
+ request.name
+ "': received dependent object '"
+ in.getName()
+ "' with timestamp '"
+ in.getTimestamp()
+ "'.");
Named returnValue = null;
try {
/** Bind the parameter to the script. */
if (request.inputBinding.get(in.getName()) == null) {
LOG.error(
"Script '"
+ request.name
+ "': Error in binding of parameters. The runtime parameter '"
+ in.getName()
+ "' was received, but has not been bound to any script parameter.");
} else {
engine.put(request.inputBinding.get(in.getName()), in);
/** Check if a binding has been created for all needed parameters. */
if (ready()) {
LOG.info(
"Script '"
+ request.name
+ "': All dependent values set. Evaluating script that will create object '"
+ request.output.getName()
+ "'");
engine.eval(request.script);
/**
* The request output object has been bound to the engine. The script can thus update it
* directly. Only the timestamp and uuid should also be set.
*/
returnValue = request.output.instance();
returnValue.setTimestamp(in.getTimestamp());
}
}
} catch (Exception e) {
e.printStackTrace();
}
return returnValue;
}
/**
* Perform mediation with static inline script of the given scripting language
*
* @param synCtx message context
* @return true, or the script return value
* @throws ScriptException For any errors , when compile , run the script
*/
private Object mediateForInlineScript(MessageContext synCtx) throws ScriptException {
ScriptMessageContext scriptMC = new ScriptMessageContext(synCtx, xmlHelper);
processJSONPayload(synCtx, scriptMC);
Bindings bindings = scriptEngine.createBindings();
bindings.put(MC_VAR_NAME, scriptMC);
Object response;
if (compiledScript != null) {
response = compiledScript.eval(bindings);
} else {
response = scriptEngine.eval(scriptSourceCode, bindings);
}
return response;
}
private String evaluateExpression(
Execution execution, String scriptToExecute, JCRSessionWrapper session)
throws RepositoryException, ScriptException {
ScriptContext scriptContext = scriptEngine.getContext();
if (bindings == null) {
bindings = getBindings(execution, session);
}
scriptContext.setWriter(new StringWriter());
scriptContext.setErrorWriter(new StringWriter());
scriptEngine.eval(scriptToExecute, bindings);
String error = scriptContext.getErrorWriter().toString();
if (error.length() > 0) {
logger.error("Scripting error : " + error);
}
return scriptContext.getWriter().toString().trim();
}
public static void main(String[] args) throws Exception {
System.out.println("\nTest7\n");
File file = new File(System.getProperty("test.src", "."), "Test7.js");
Reader r = new FileReader(file);
ScriptEngineManager m = new ScriptEngineManager();
ScriptEngine eng = Helper.getJsEngine(m);
if (eng == null) {
System.out.println("Warning: No js engine found; test vacuously passes.");
return;
}
eng.put("filename", file.getAbsolutePath());
eng.eval(r);
String str = (String) eng.get("firstLine");
// do not change first line in Test7.js -- we check it here!
if (!str.equals("//this is the first line of Test7.js")) {
throw new RuntimeException("unexpected first line");
}
}
@Override
public Object getValue(FacesContext context)
throws EvaluationException, PropertyNotFoundException {
Object result = null;
try {
ScriptEngine engine = (ScriptEngine) getScopeMap().get("_" + language + "ScriptEngine");
if (engine == null) {
engine = GenericBindingFactory.createScriptEngine(language);
getScopeMap().put("_" + language + "ScriptEngine", engine);
}
includeScriptLibraries(engine);
result = engine.eval(this.content);
} catch (ScriptException se) {
throw new EvaluationException(se);
}
return result;
}
private void initScript() {
String scriptName = "src" + File.separator + "jscripts" + File.separator + "CreateWorld.js";
List<ScriptEngineFactory> list = factory.getEngineFactories();
File scriptFile = new File(scriptName);
try {
FileReader fileReader = new FileReader(scriptFile);
engine.eval(fileReader);
fileReader.close();
} catch (FileNotFoundException e1) {
System.out.println(scriptName + " not found " + e1);
} catch (IOException e2) {
System.out.println("IO issue detected " + scriptName + e2);
} catch (ScriptException e3) {
System.out.println("ScriptException in " + scriptName + e3);
} catch (NullPointerException e4) {
System.out.println("Null pointer in" + scriptName + e4);
}
addGameWorldObject((SceneNode) engine.get("worldAxis"));
}
@SuppressWarnings("unchecked")
protected static void includeScriptLibraries(ScriptEngine engine) throws ScriptException {
FacesContext context = FacesContext.getCurrentInstance();
String language = engine.getFactory().getLanguageName();
Set<String> mimeTypes = new HashSet<String>(engine.getFactory().getMimeTypes());
mimeTypes.add("text/x-script-" + language);
Set<String> includedLibraries =
(Set<String>) getScopeMap().get("_" + language + "IncludedLibraries");
if (includedLibraries == null) {
includedLibraries = new HashSet<String>();
getScopeMap().put("_" + language + "IncludedLibraries", includedLibraries);
}
// Now look through the view's resources for appropriate scripts and load them
UIViewRootEx2 view = (UIViewRootEx2) context.getViewRoot();
if (view != null) {
for (Resource res : view.getResources()) {
if (res instanceof ScriptResource) {
ScriptResource script = (ScriptResource) res;
if (script.getType() != null && mimeTypes.contains(script.getType())) {
// Then we have a script - find its contents and run it
String properName = (script.getSrc().charAt(0) == '/' ? "" : "/") + script.getSrc();
if (!includedLibraries.contains(properName)) {
InputStream is =
context
.getExternalContext()
.getResourceAsStream("/WEB-INF/" + language + properName);
if (is != null) {
engine.eval(new InputStreamReader(is));
}
includedLibraries.add(properName);
}
}
}
}
}
}
@Override
public Object invoke(FacesContext context, Object[] arg1)
throws EvaluationException, MethodNotFoundException {
Object result = null;
try {
ScriptEngine engine = (ScriptEngine) getScopeMap().get("_" + language + "ScriptEngine");
if (engine == null) {
engine = GenericBindingFactory.createScriptEngine(language);
getScopeMap().put("_" + language + "ScriptEngine", engine);
}
includeScriptLibraries(engine);
result = engine.eval(this.content);
} catch (ScriptException se) {
throw new EvaluationException(se);
}
if (!(result instanceof Serializable)) {
return result.toString();
}
return result;
}
@EventHandler
public void onPacketProcess(PacketProcessEvent event) {
// System.out.println("Packet received: " + event.getPacket().getId()
// + " (" + event.getPacket() + ")");
Packet packet = event.getPacket();
switch (packet.getId()) {
case 0:
connectionHandler.sendPacket(new Packet0KeepAlive(new Random().nextInt()));
break;
case 3:
String message = ((Packet3Chat) packet).message;
message = removeColors(message);
System.out.println("[" + bot.getSession().getUsername() + "] " + message);
String testMessage = "[MineCaptcha] To be unmuted answer this question: What is ";
String testMessage2 = "Please type '";
String testMessage3 = "' to continue sending messages/commands";
if (message.contains(testMessage)) {
try {
String captcha = message.split(Pattern.quote(testMessage))[1].split("[ \\?]")[0];
ScriptEngineManager mgr = new ScriptEngineManager();
ScriptEngine engine = mgr.getEngineByName("JavaScript");
String solved = engine.eval(captcha).toString();
solved = solved.split("\\.")[0];
connectionHandler.sendPacket(new Packet3Chat(solved));
} catch (Exception exception) {
exception.printStackTrace();
}
} else if (message.contains(testMessage2) && message.contains(testMessage3)) {
try {
String captcha =
message.split(Pattern.quote(testMessage2))[1].split(Pattern.quote(testMessage3))[0];
connectionHandler.sendPacket(new Packet3Chat(captcha));
} catch (Exception exception) {
exception.printStackTrace();
}
} else if (message.startsWith("Please register with \"/register")) {
String password = "";
for (int i = 0; i < 10 + random.nextInt(6); i++)
password += alphas[random.nextInt(alphas.length)];
bot.say("/register " + password + " " + password);
} else if (message.startsWith("/uc ")) {
connectionHandler.sendPacket(new Packet3Chat(message));
} else if ((message.contains("do the crime") && message.contains("do the time"))
|| message.contains("You have been muted")) {
connectionHandler.sendPacket(new Packet3Chat("\247Leaving!"));
} else if (message.contains(owner + " has requested to teleport to you.")) {
connectionHandler.sendPacket(new Packet3Chat("/tpaccept"));
} else if (message.contains(owner)) {
if (message.contains("Go ")) {
spamMessage = message.substring(message.indexOf("Go ") + "Go ".length());
} else if (message.contains("Stop")) {
spamMessage = null;
bot.getTaskManager().stopAll();
} else if (message.contains("Die")) {
die = true;
} else if (message.contains("Say ")) {
connectionHandler.sendPacket(
new Packet3Chat(message.substring(message.indexOf("Say ") + "Say ".length())));
} else if (message.contains("Leave")) {
connectionHandler.sendPacket(new Packet255KickDisconnect("Quit"));
} else if (message.contains("Tool")) {
MainPlayerEntity player = bot.getPlayer();
if (player == null) return;
PlayerInventory inventory = player.getInventory();
inventory.setCurrentHeldSlot(
Integer.parseInt(
message.substring(message.indexOf("Tool ") + "Tool ".length()).split(" ")[0]));
} else if (message.contains("DropId ")) {
MainPlayerEntity player = bot.getPlayer();
PlayerInventory inventory = player.getInventory();
String substring =
message.substring(message.indexOf("DropId ") + "DropId ".length()).split(" ")[0];
int id = Integer.parseInt(substring);
for (int slot = 0; slot < 40; slot++) {
ItemStack item = inventory.getItemAt(slot);
if (item != null && item.getId() == id) {
inventory.selectItemAt(slot, true);
inventory.dropSelectedItem();
}
}
inventory.close();
} else if (message.contains("Drop")) {
MainPlayerEntity player = bot.getPlayer();
PlayerInventory inventory = player.getInventory();
if (message.contains("Drop ")) {
String substring =
message.substring(message.indexOf("Drop ") + "Drop ".length()).split(" ")[0];
try {
int slot = Integer.parseInt(substring);
if (slot < 0 || slot >= 40) return;
if (inventory.getItemAt(slot) != null) {
inventory.selectItemAt(slot, true);
inventory.dropSelectedItem();
}
return;
} catch (NumberFormatException e) {
}
}
for (int slot = 0; slot < 40; slot++) {
if (inventory.getItemAt(slot) != null) {
inventory.selectItemAt(slot, true);
inventory.dropSelectedItem();
}
}
inventory.close();
} else if (message.contains("Switch ")) {
MainPlayerEntity player = bot.getPlayer();
PlayerInventory inventory = player.getInventory();
String substring = message.substring(message.indexOf("Switch ") + "Switch ".length());
try {
int slot1 = Integer.parseInt(substring.split(" ")[0]);
int slot2 = Integer.parseInt(substring.split(" ")[1]);
if (slot1 < 0 || slot1 >= 45 || slot2 < 0 || slot2 >= 45) return;
inventory.selectItemAt(slot1);
inventory.selectItemAt(slot2);
inventory.selectItemAt(slot1);
} catch (NumberFormatException e) {
}
// inventory.close();
} else if (message.contains("Equip")) {
MainPlayerEntity player = bot.getPlayer();
PlayerInventory inventory = player.getInventory();
boolean helmet = inventory.getArmorAt(0) != null;
boolean chestplate = inventory.getArmorAt(1) != null;
boolean leggings = inventory.getArmorAt(2) != null;
boolean boots = inventory.getArmorAt(3) != null;
boolean changed = false;
for (int i = 0; i < 36; i++) {
ItemStack item = inventory.getItemAt(i);
if (item == null) continue;
int armorSlot;
int id = item.getId();
if (!helmet
&& (id == 86 || id == 298 || id == 302 || id == 306 || id == 310 || id == 314)) {
armorSlot = 0;
helmet = true;
} else if (!chestplate
&& (id == 299 || id == 303 || id == 307 || id == 311 || id == 315)) {
armorSlot = 1;
chestplate = true;
} else if (!leggings
&& (id == 300 || id == 304 || id == 308 || id == 312 || id == 316)) {
armorSlot = 2;
leggings = true;
} else if (!boots
&& (id == 301 || id == 305 || id == 309 || id == 313 || id == 317)) {
armorSlot = 3;
boots = true;
} else if (helmet && chestplate && leggings && boots) break;
else continue;
inventory.selectItemAt(i);
inventory.selectArmorAt(armorSlot);
changed = true;
}
if (!changed) {
for (int i = 0; i < 36; i++) {
ItemStack item = inventory.getItemAt(i);
if (item != null) continue;
int armorSlot;
if (helmet) {
armorSlot = 0;
helmet = false;
} else if (chestplate) {
armorSlot = 1;
chestplate = false;
} else if (leggings) {
armorSlot = 2;
leggings = false;
} else if (boots) {
armorSlot = 3;
boots = false;
} else if (!helmet && !chestplate && !leggings && !boots) break;
else continue;
inventory.selectArmorAt(armorSlot);
inventory.selectItemAt(i);
}
}
inventory.close();
bot.say("Equipped armor.");
} else if (message.contains("Owner ")) {
String name =
message.substring(message.indexOf("Owner ") + "Owner ".length()).split(" ")[0];
owner = name;
bot.say("Set owner to " + name);
}
} else if (message.contains("You are not member of any faction.")
&& spamMessage != null
&& createFaction) {
String msg = "/f create ";
for (int i = 0; i < 7 + random.nextInt(3); i++)
msg += alphas[random.nextInt(alphas.length)];
bot.say(msg);
}
if (message.matches("[\\*]*SPQR [\\w]{1,16} invited you to SPQR")) {
bot.say("/f join SPQR");
bot.say("\247asdf");
}
break;
case 8:
Packet8UpdateHealth updateHealth = (Packet8UpdateHealth) packet;
if (updateHealth.healthMP <= 0) connectionHandler.sendPacket(new Packet205ClientCommand(1));
break;
case 9:
TaskManager taskManager = bot.getTaskManager();
taskManager.stopAll();
break;
}
}
public void executeScript(ScriptEngine engine, File file)
throws FileNotFoundException, ScriptException {
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
if (Config.SCRIPT_DEBUG) {
_log.info("Loading Script: " + file.getAbsolutePath());
}
if (Config.SCRIPT_ERROR_LOG) {
String name = file.getAbsolutePath() + ".error.log";
File errorLog = new File(name);
if (errorLog.isFile()) {
errorLog.delete();
}
}
if (engine instanceof Compilable && Config.SCRIPT_ALLOW_COMPILATION) {
ScriptContext context = new SimpleScriptContext();
context.setAttribute(
"mainClass",
getClassForFile(file).replace('/', '.').replace('\\', '.'),
ScriptContext.ENGINE_SCOPE);
context.setAttribute(ScriptEngine.FILENAME, file.getName(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"classpath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"sourcepath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
JythonScriptEngine.JYTHON_ENGINE_INSTANCE, engine, ScriptContext.ENGINE_SCOPE);
setCurrentLoadingScript(file);
ScriptContext ctx = engine.getContext();
try {
engine.setContext(context);
if (Config.SCRIPT_CACHE) {
CompiledScript cs = _cache.loadCompiledScript(engine, file);
cs.eval(context);
} else {
Compilable eng = (Compilable) engine;
CompiledScript cs = eng.compile(reader);
cs.eval(context);
}
} finally {
engine.setContext(ctx);
setCurrentLoadingScript(null);
context.removeAttribute(ScriptEngine.FILENAME, ScriptContext.ENGINE_SCOPE);
context.removeAttribute("mainClass", ScriptContext.ENGINE_SCOPE);
}
} else {
ScriptContext context = new SimpleScriptContext();
context.setAttribute(
"mainClass",
getClassForFile(file).replace('/', '.').replace('\\', '.'),
ScriptContext.ENGINE_SCOPE);
context.setAttribute(ScriptEngine.FILENAME, file.getName(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"classpath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
context.setAttribute(
"sourcepath", SCRIPT_FOLDER.getAbsolutePath(), ScriptContext.ENGINE_SCOPE);
setCurrentLoadingScript(file);
try {
engine.eval(reader, context);
} finally {
setCurrentLoadingScript(null);
engine.getContext().removeAttribute(ScriptEngine.FILENAME, ScriptContext.ENGINE_SCOPE);
engine.getContext().removeAttribute("mainClass", ScriptContext.ENGINE_SCOPE);
}
}
}
/**
* Prepares the mediator for the invocation of an external script
*
* @param synCtx MessageContext script
* @throws ScriptException For any errors , when compile the script
*/
protected synchronized void prepareExternalScript(MessageContext synCtx) throws ScriptException {
// TODO: only need this synchronized method for dynamic registry entries. If there was a way
// to access the registry entry during mediator initialization then for non-dynamic entries
// this could be done just the once during mediator initialization.
// Derive actual key from xpath expression or get static key
String generatedScriptKey = key.evaluateValue(synCtx);
Entry entry = synCtx.getConfiguration().getEntryDefinition(generatedScriptKey);
boolean needsReload =
(entry != null) && entry.isDynamic() && (!entry.isCached() || entry.isExpired());
synchronized (resourceLock) {
if (scriptSourceCode == null || needsReload) {
Object o = synCtx.getEntry(generatedScriptKey);
if (o instanceof OMElement) {
scriptSourceCode = ((OMElement) (o)).getText();
scriptEngine.eval(scriptSourceCode);
} else if (o instanceof String) {
scriptSourceCode = (String) o;
scriptEngine.eval(scriptSourceCode);
} else if (o instanceof OMText) {
DataHandler dataHandler = (DataHandler) ((OMText) o).getDataHandler();
if (dataHandler != null) {
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(dataHandler.getInputStream()));
scriptEngine.eval(reader);
} catch (IOException e) {
handleException("Error in reading script as a stream ", e, synCtx);
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
handleException("Error in closing input stream ", e, synCtx);
}
}
}
}
}
}
}
// load <include /> scripts; reload each script if needed
for (Value includeKey : includes.keySet()) {
String includeSourceCode = (String) includes.get(includeKey);
String generatedKey = includeKey.evaluateValue(synCtx);
Entry includeEntry = synCtx.getConfiguration().getEntryDefinition(generatedKey);
boolean includeEntryNeedsReload =
(includeEntry != null)
&& includeEntry.isDynamic()
&& (!includeEntry.isCached() || includeEntry.isExpired());
synchronized (resourceLock) {
if (includeSourceCode == null || includeEntryNeedsReload) {
log.debug("Re-/Loading the include script with key " + includeKey);
Object o = synCtx.getEntry(generatedKey);
if (o instanceof OMElement) {
includeSourceCode = ((OMElement) (o)).getText();
scriptEngine.eval(includeSourceCode);
} else if (o instanceof String) {
includeSourceCode = (String) o;
scriptEngine.eval(includeSourceCode);
} else if (o instanceof OMText) {
DataHandler dataHandler = (DataHandler) ((OMText) o).getDataHandler();
if (dataHandler != null) {
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(dataHandler.getInputStream()));
scriptEngine.eval(reader);
} catch (IOException e) {
handleException("Error in reading script as a stream ", e, synCtx);
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
handleException("Error in closing input" + " stream ", e, synCtx);
}
}
}
}
}
}
}
}
}
@Test
public void statsPackageIsLoadedByDefault() throws ScriptException {
engine.eval("dnorm(0)");
}
@Test
public void helloWorld() throws ScriptException {
// evaluate R code from String
engine.eval("print('Hello, World')");
}
@Test
public void readResource() throws ScriptException {
StringVector vector = (StringVector) engine.eval("readLines('res:org/renjin/test.txt')");
assertThat(vector.length(), equalTo(1));
assertThat(vector.getElementAsString(0), equalTo("hello world"));
}