Java Utililty Methods Script

List of utility methods to do Script

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Description

The list of methods to do Script are organized into topic(s).

Method

void addAttribute(final ScriptContext context, final String key, final Object value)
add Attribute

context.setAttribute(key, value, ScriptContext.ENGINE_SCOPE);

String adjustKey(String key)
adjust Key

if (key.equals(ScriptEngine.ARGV)) {
 return "ARGV";
if ("ARGV".equals(key)) {
 return ScriptEngine.ARGV;
} else {
 return key;

void cdInShell(IResource resource)
cd In Shell

try {
 String containerPath = getParentOfResource(resource).replaceAll(" ", "\\ ");
 String openInTerminalString = "tell application \"Terminal\"\n do script \"cd \\\"" + containerPath
 + "\\\"\"\n activate\nend tell";
 executeAppleScript(openInTerminalString);
} catch (Throwable t) {
 t.printStackTrace();

Object convert(Object from)
convert

if (from instanceof JSObject) {
 if (((JSObject) from).isArray()) {
 return convertArray((Bindings) from);
if (from instanceof Map) {
 return dbObjectFromMap((Map<String, Object>) from);
return from;

BasicDBObject dbObjectFromMap(Map from)
db Object From Map

BasicDBObject result = new BasicDBObject();
for (Entry<String, Object> entry : from.entrySet()) {
 result.append(entry.getKey(), convert(entry.getValue()));
return result;

String decodeB64_TO_UTF8(String encodedStr)
decode TUTF

String decodeStr = new String(Base64.getDecoder().decode(encodedStr.getBytes()), "UTF-8");
ScriptEngineManager factory = new ScriptEngineManager();
ScriptEngine engine = factory.getEngineByName("JavaScript");
String result = (String) engine.eval("unescape('" + java.net.URLDecoder.decode(decodeStr, "UTF-8") + "')");
return result;

String escapeJavascript(String str)
Encoding if need escaping %$&+,/:;=?@<>#%

try {
 String n = engine.eval(String.format("escape(\"%s\")", str.replaceAll("%20", " "))).toString();
 for (Entry<String, String> e : jsReplaces.entrySet()) {
 n = n.replaceAll(e.getKey(), e.getValue());
 return n;
} catch (ScriptException ex) {
 return null;
...

Object eval(String expression, Object... arguments)
eval

ScriptEngineManager engineManager = new ScriptEngineManager();
ScriptEngine engine = engineManager.getEngineByName("JavaScript");
for (int i = 0; i < arguments.length; i++) {
 expression = expression.replaceAll("%" + (i + 1), arguments[i].toString());
return engine.eval(expression);

Object eval(String name, Map params)
eval

CompiledScript script = scripts.get(name);
if (script == null) {
 throw new ScriptException("no such methor!");
Bindings b = engine.createBindings();
if (params != null) {
 b.putAll(params);
return script.eval(b);

String eval(String script)
eval

ScriptEngineManager sem = new ScriptEngineManager();
ScriptEngine se = sem.getEngineByName("javascript");
String res = "";
try {
 res = String.valueOf(se.eval(script));
} catch (ScriptException e) {
 e.printStackTrace();
return res;