Example usage for javax.script ScriptEngine eval

Introduction

In this page you can find the example usage for javax.script ScriptEngine eval.

Prototype

public Object eval(Reader reader) throws ScriptException;

Source Link

Document

Same as eval(String) except that the source of the script is provided as a Reader

Usage

From source file:org.eclairjs.nashorn.Utils.java

public static Object toJsArray(Object javaArray) {
    Object jsArray = javaArray;// ww w  . ja v a2s . c  om
    ScriptEngine engine = NashornEngineSingleton.getEngine();
    try {
        String func = "function(javaArray){return Java.from(javaArray)}";
        Object fn = engine.eval(func);
        Object params[] = { jsArray };
        jsArray = ((ScriptObjectMirror) fn).call(null, params);

    } catch (ScriptException e) {
        e.printStackTrace();
    }
    return jsArray;
}

From source file:org.myperl.MathService.java

@GET
@Path("/")
public String get(@QueryParam("exper") String expression) throws ScriptException {
    ScriptEngine engine = manager.getEngineByName("nashorn");
    return engine.eval(expression).toString();
}

From source file:org.tamilunicodeconverter.converter.BaminiConverter.java

public String getUnicodeTextUsingJavaScript(String text) {
    String unicodeText = "";

    try {/*from w  ww. jav a2 s.co m*/
        ScriptEngineManager factory = new ScriptEngineManager();
        ScriptEngine engine = factory.getEngineByName("JavaScript");
        engine.eval(getScriptContent());
        Invocable invokable = (Invocable) engine;
        unicodeText = (String) invokable.invokeFunction("convert", new String[] { text });
    } catch (Exception ex) {
        throw new UnhandledException("Error occured while converting bamini text to unicode", ex);
    }
    return unicodeText;
}

From source file:org.geoserver.script.wfs.WfsTxHookTest.java

public void testHookError() throws Exception {
    File script = copyOverFile("tx-error");

    TransactionRequest tx = new TransactionRequest.WFS11(null);
    TransactionResponse res = new TransactionResponse.WFS11(null);

    Map context = new HashMap();

    ScriptEngine eng = scriptMgr.createNewEngine(script);
    eng.eval(new FileReader(script));

    WfsTxHook hook = getScriptManager().lookupWfsTxHook(script);
    try {//from   w  w  w  . j av a  2  s.co  m
        hook.handleBefore(eng, tx, context);
        fail("exected WFS exception");
    } catch (WFSException e) {
        assertEquals("before exception", e.getMessage());
    }
}

From source file:io.lightlink.translator.JSBeautifyPostProcessor.java

@Override
public String process(String script) throws IOException {
    String beautifier = IOUtils.toString(Thread.currentThread().getContextClassLoader()
            .getResourceAsStream("io/lightlink/translator/beautify.js"));

    ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
    try {/*from w  w w  . j av a  2  s . c  o m*/
        engine.eval(beautifier);
        engine.getBindings(ScriptContext.ENGINE_SCOPE).put("$originalScript", script);
        return engine.eval("js_beautify($originalScript, {})") + "";
    } catch (ScriptException e) {
        LOG.error(e.toString(), e);
        return script;
    }

}

From source file:org.siphon.common.js.JSON.java

public JSON(ScriptEngine jsEngine) {
    try {/*  ww  w  .j  a va2 s  .c  o  m*/
        this.json = (ScriptObjectMirror) jsEngine.eval("JSON");
    } catch (ScriptException e) {
    }
}

From source file:org.eclairjs.nashorn.sql.JSUDF1.java

@SuppressWarnings({ "null", "unchecked" })
@Override/*from   www. j  a  v  a 2s.  co  m*/
public Object call(Object o) throws Exception {
    ScriptEngine e = NashornEngineSingleton.getEngine();
    if (this.fn == null) {
        this.fn = e.eval(func);
    }
    Invocable invocable = (Invocable) e;

    Object params[] = { this.fn, o };

    if (this.args != null && this.args.length > 0) {
        params = ArrayUtils.addAll(params, this.args);
    }

    Object ret = invocable.invokeFunction("Utils_invoke", params);
    ret = this.castValueToReturnType(ret);
    return ret;
}

From source file:org.eclairjs.nashorn.sql.JSUDF2.java

@SuppressWarnings({ "null", "unchecked" })
@Override/*from  w w w.ja  va 2  s  . c o  m*/
public Object call(Object o, Object o2) throws Exception {
    ScriptEngine e = NashornEngineSingleton.getEngine();
    if (this.fn == null) {
        this.fn = e.eval(func);
    }
    Invocable invocable = (Invocable) e;

    Object params[] = { this.fn, o, o2 };

    if (this.args != null && this.args.length > 0) {
        params = ArrayUtils.addAll(params, this.args);
    }

    Object ret = invocable.invokeFunction("Utils_invoke", params);
    ret = this.castValueToReturnType(ret);
    return ret;
}

From source file:org.eclairjs.nashorn.sql.JSUDF3.java

@SuppressWarnings({ "null", "unchecked" })
@Override/*from  w  w w .ja  v  a2s.c o m*/
public Object call(Object o, Object o2, Object o3) throws Exception {
    ScriptEngine e = NashornEngineSingleton.getEngine();
    if (this.fn == null) {
        this.fn = e.eval(func);
    }
    Invocable invocable = (Invocable) e;

    Object params[] = { this.fn, o, o2, o3 };

    if (this.args != null && this.args.length > 0) {
        params = ArrayUtils.addAll(params, this.args);
    }

    Object ret = invocable.invokeFunction("Utils_invoke", params);
    ret = this.castValueToReturnType(ret);
    return ret;
}

From source file:org.eclairjs.nashorn.sql.JSUDF4.java

@SuppressWarnings({ "null", "unchecked" })
@Override//w w w .j av a  2s  . com
public Object call(Object o, Object o2, Object o3, Object o4) throws Exception {
    ScriptEngine e = NashornEngineSingleton.getEngine();
    if (this.fn == null) {
        this.fn = e.eval(func);
    }
    Invocable invocable = (Invocable) e;

    Object params[] = { this.fn, o, o2, o3, o4 };

    if (this.args != null && this.args.length > 0) {
        params = ArrayUtils.addAll(params, this.args);
    }

    Object ret = invocable.invokeFunction("Utils_invoke", params);
    ret = this.castValueToReturnType(ret);
    return ret;
}