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.jdto.mergers.ScriptMerger.java

private Object executeScript(ScriptEngine engine, String script) {

    try {/*from  ww  w  . jav a  2 s. c om*/
        return engine.eval(script);
    } catch (ScriptException ex) {
        String engineName = engine.toString();
        logger.error("Could not execute script in engine: " + engineName, ex);
        throw new RuntimeException("Failure while executing script", ex);
    }
}

From source file:reconf.server.services.JavaScriptEngine.java

public Object eval(String js, Map<String, Object> params, String resultVariableName) {
    try {//  w  w w  . j a v  a 2  s. c  o  m
        ScriptEngineManager factory = new ScriptEngineManager();
        ScriptEngine engine = factory.getEngineByName("JavaScript");
        for (Entry<String, Object> each : params.entrySet()) {
            engine.put(each.getKey(), each.getValue());
        }
        engine.eval(js);
        return engine.get(resultVariableName);

    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:de.perdoctus.synology.jdadapter.controller.JdAdapter.java

private String extractKey(String jk) throws ScriptException {
    final ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
    final ScriptEngine scriptEngine = scriptEngineManager.getEngineByMimeType("text/javascript");
    scriptEngine.eval(jk + "\nvar result = f();");
    return scriptEngine.get("result").toString();
}

From source file:net.mindengine.galen.suite.actions.GalenPageActionRunJavascript.java

private void importClasses(ScriptEngine engine, Class<?>[] classes) throws ScriptException {
    for (Class<?> clazz : classes) {
        engine.eval("importClass(" + clazz.getName() + ")");
    }/*from  ww w .  j a  v  a  2s .c om*/
}

From source file:org.rhq.jndi.test.JndiAccessTest.java

public void testLocalJNDILookupFailsFromScripts() throws Exception {
    Subject overlord = LookupUtil.getSubjectManager().getOverlord();

    ScriptEngine engine = getEngine(overlord);

    try {/*from  w  ww .j ava 2 s . co m*/
        engine.eval("" + "var ctx = new javax.naming.InitialContext();\n"
                + "var entityManagerFactory = ctx.lookup('java:/RHQEntityManagerFactory');\n"
                + "var entityManager = entityManagerFactory.createEntityManager();\n"
                + "entityManager.find(java.lang.Class.forName('org.rhq.core.domain.resource.Resource'), java.lang.Integer.valueOf('10001'));");

        Assert.fail("The script shouldn't have been able to use the EntityManager.");
    } catch (ScriptException e) {
        checkIsDesiredSecurityException(e);
    }
}

From source file:org.rhq.jndi.test.JndiAccessTest.java

@Parameters("jnp.port")
public void testRemoteJNDILookupWorksFromScripts(int jnpPort) throws Exception {
    Subject overlord = LookupUtil.getSubjectManager().getOverlord();

    ScriptEngine engine = getEngine(overlord);

    try {// w ww  . ja  va 2s  .c o  m
        engine.eval("" + "var env = new java.util.Hashtable();"
                + "env.put('java.naming.factory.initial', 'org.jboss.naming.NamingContextFactory');"
                + "env.put('java.naming.provider.url', 'jnp://localhost:" + jnpPort + "');"
                + "var ctx = new javax.naming.InitialContext(env);\n" + "var kachny = ctx.lookup('kachny');\n"
                + "assertNotNull(kachny);\n");
    } catch (ScriptException e) {
        Assert.fail("The script should have been able to access a remote JNDI server.", e);
    }
}

From source file:com.orange.clara.cloud.servicedbdumper.config.CatalogConfig.java

private float getCostFromQuota(String quota, String formula) throws ParseException, ScriptException {
    long size = ByteFormat.parse(quota);
    String formulaInjected = formula.replaceAll("quota", String.valueOf(size * this.getDefaultCost()));
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("JavaScript");
    Object eval = engine.eval(formulaInjected);
    if (eval instanceof Integer) {
        return new Float((Integer) eval);
    }// w  w w .  ja  v a  2s.c  o m
    if (eval instanceof Float) {
        return (Float) eval;
    }
    return Math.round((Double) eval);
}

From source file:org.sonar.fortify.crawler.Main.java

private void executeJSCode(String pageSrc) throws ScriptException {
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("JavaScript");
    engine.put("d", this);
    engine.eval(pageSrc);
}

From source file:com.thoughtworks.gauge.refactor.RefactoringMethodVisitor.java

public void visit(MethodDeclaration methodDeclaration, Object arg) {
    try {/*from   ww w.j  a v  a 2s  .com*/
        List<AnnotationExpr> annotations = methodDeclaration.getAnnotations();
        if (annotations == null)
            return;
        for (AnnotationExpr annotationExpr : annotations) {
            if (!(annotationExpr instanceof SingleMemberAnnotationExpr))
                continue;

            SingleMemberAnnotationExpr annotation = (SingleMemberAnnotationExpr) annotationExpr;
            if (annotation.getMemberValue() instanceof BinaryExpr) {
                ScriptEngine engine = new ScriptEngineManager().getEngineByName("JavaScript");
                try {
                    Object result = engine.eval(annotation.getMemberValue().toString());
                    refactor(methodDeclaration, new StringLiteralExpr(result.toString()), annotation);
                } catch (ScriptException e) {
                    continue;
                }
            }
            if (annotation.getMemberValue() instanceof StringLiteralExpr) {
                StringLiteralExpr memberValue = (StringLiteralExpr) annotation.getMemberValue();
                refactor(methodDeclaration, memberValue, annotation);
            }
        }
    } catch (Exception ignored) {
    }
}

From source file:org.wso2.developerstudio.datamapper.diagram.custom.dialogs.ConfigureMatchOperatorDialog.java

private String validateRegex(String input) {
    String output = input;/* ww w .ja  v a  2s  .c o m*/
    String scriptExecutorType = NASHORN;
    String javaVersion = System.getProperty(JAVA_VERSION);
    if (javaVersion.startsWith(JAVA_VERSION_7) || javaVersion.startsWith(JAVA_VERSION_6)) {
        scriptExecutorType = RHINO;
    }
    ScriptEngine engine = new ScriptEngineManager().getEngineByName(scriptExecutorType);
    try {
        engine.eval("function myFunction(input) {\n" + "var sampleString = \"acbdacfac\";\n" + "\n"
                + "   return sampleString.match(input);\n" + "}\n");
        engine.eval("myFunction(" + input + ");");
    } catch (ScriptException e) {
        output = "\"" + input + "\"";
    }
    return output;
}