Example usage for javax.script ScriptContext getAttribute

Introduction

In this page you can find the example usage for javax.script ScriptContext getAttribute.

Prototype

public Object getAttribute(String name);

Source Link

Document

Retrieves the value of the attribute with the given name in the scope occurring earliest in the search order.

Usage

From source file:Main.java

public static void main(String[] args) {
    ScriptContext ctx = new SimpleScriptContext();
    List<Integer> scopes = ctx.getScopes();
    System.out.println("Supported Scopes: " + scopes);

    ctx.setAttribute("year", 2015, ENGINE_SCOPE);

    Bindings globalBindings = new SimpleBindings();
    ctx.setBindings(globalBindings, GLOBAL_SCOPE);

    ctx.setAttribute("year", 2014, GLOBAL_SCOPE);
    ctx.setAttribute("name", "Jack", GLOBAL_SCOPE);

    String nameValue = (String) ctx.getAttribute("name");
    System.out.println("nameValue = " + nameValue);

    int engineScopeYear = (Integer) ctx.getAttribute("year", ENGINE_SCOPE);
    int globalScopeYear = (Integer) ctx.getAttribute("year", GLOBAL_SCOPE);

    System.out.println("engineScopeYear = " + engineScopeYear);
    System.out.println("globalScopeYear = " + globalScopeYear);
}

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From source file:com.googlecode.starflow.core.script.spel.SpelScriptEngine.java

private StandardEvaluationContext getStandardEvaluationContext(ScriptContext scriptContext) {
    StandardEvaluationContext standardEvaluationContext = new StandardEvaluationContext(
            scriptContext.getAttribute(ROOT_OBJECT));
    standardEvaluationContext.setVariables(getVariables(scriptContext));
    return standardEvaluationContext;
}

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From source file:io.cloudslang.lang.runtime.bindings.ScriptEvaluator.java

public Serializable evalExpr(String expr, Map<String, ? extends Serializable> context) {
    ScriptContext scriptContext = new SimpleScriptContext();
    for (Map.Entry<String, ? extends Serializable> entry : context.entrySet()) {
        scriptContext.setAttribute(entry.getKey(), entry.getValue(), ScriptContext.ENGINE_SCOPE);
    }//from  w ww .j  a  va 2  s  .c o m
    if (scriptContext.getAttribute(TRUE) == null)
        scriptContext.setAttribute(TRUE, Boolean.TRUE, ScriptContext.ENGINE_SCOPE);
    if (scriptContext.getAttribute(FALSE) == null)
        scriptContext.setAttribute(FALSE, Boolean.FALSE, ScriptContext.ENGINE_SCOPE);
    try {
        return (Serializable) engine.eval(expr, scriptContext);
    } catch (ScriptException e) {
        ScriptException scriptException = new ScriptException(e);
        throw new RuntimeException("Error in running script expression or variable reference, for expression: '"
                + expr + "',\n\tScript exception is: " + scriptException.getMessage(), scriptException);
    }
}

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From source file:org.openscore.lang.runtime.bindings.ScriptEvaluator.java

public Serializable evalExpr(String expr, Map<String, ? extends Serializable> context) {
    ScriptContext scriptContext = new SimpleScriptContext();
    for (Map.Entry<String, ? extends Serializable> entry : context.entrySet()) {
        scriptContext.setAttribute(entry.getKey(), entry.getValue(), ScriptContext.ENGINE_SCOPE);
    }/*from   ww  w .jav a  2s  .  c o  m*/
    if (scriptContext.getAttribute(TRUE) == null)
        scriptContext.setAttribute(TRUE, Boolean.TRUE, ScriptContext.ENGINE_SCOPE);
    if (scriptContext.getAttribute(FALSE) == null)
        scriptContext.setAttribute(FALSE, Boolean.FALSE, ScriptContext.ENGINE_SCOPE);
    try {
        return (Serializable) engine.eval(expr, scriptContext);
    } catch (ScriptException e) {
        ScriptException scriptException = new ScriptException(e);
        throw new RuntimeException("Error in running script expression or variable reference, for expression: '"
                + expr + "', Script exception is: \n" + scriptException.getMessage(), scriptException);
    }
}

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From source file:edu.toronto.cs.phenotips.tools.PhenotypeMappingService.java

private Map<String, Object> parseGroovyMapping(DocumentReference mappingDoc) {
    ScriptEngine e = this.groovy.getScriptEngine();
    ScriptContext c = this.scmanager.getScriptContext();
    try {//from  w w w  . j  av a 2 s  .c o m
        e.eval(this.bridge.getDocumentContentForDefaultLanguage(mappingDoc), c);
    } catch (Exception ex) {
        this.logger.error("Failed to parse mapping document [{}]", mappingDoc, ex);
        return null;
    }
    this.observationManager.addEvent(this.getName(), new DocumentUpdatedEvent(mappingDoc));
    this.observationManager.addEvent(this.getName(), new DocumentDeletedEvent(mappingDoc));
    @SuppressWarnings("unchecked")
    Map<String, Object> mappings = (Map<String, Object>) c.getAttribute("mappings");
    setMappings(mappingDoc, mappings);
    return mappings;
}

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From source file:org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine.java

private Object callGlobal(final String name, final Object args[], final ScriptContext ctx) {
    final Closure closure = globalClosures.get(name);
    if (closure != null) {
        return closure.call(args);
    }/*from w w  w . j a  v  a 2 s  .  co  m*/

    final Object value = ctx.getAttribute(name);
    if (value instanceof Closure) {
        return ((Closure) value).call(args);
    } else {
        throw new MissingMethodException(name, getClass(), args);
    }
}

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From source file:org.ow2.proactive.scheduler.task.java.JavaClassScriptEngine.java

@Override
public Object eval(String userExecutableClassName, ScriptContext context) throws ScriptException {

    try {//from  ww w.  j a v a2 s  . c  o m
        JavaExecutable javaExecutable = getExecutable(userExecutableClassName);

        JavaStandaloneExecutableInitializer execInitializer = new JavaStandaloneExecutableInitializer();
        PrintStream output = new PrintStream(new WriterOutputStream(context.getWriter()), true);
        execInitializer.setOutputSink(output);
        PrintStream error = new PrintStream(new WriterOutputStream(context.getErrorWriter()), true);
        execInitializer.setErrorSink(error);

        Map<String, byte[]> propagatedVariables = null;
        if (context.getAttribute(SchedulerConstants.VARIABLES_BINDING_NAME) != null) {
            propagatedVariables = SerializationUtil.serializeVariableMap(
                    ((VariablesMap) context.getAttribute(SchedulerConstants.VARIABLES_BINDING_NAME))
                            .getPropagatedVariables());
            execInitializer.setPropagatedVariables(propagatedVariables);
        } else {
            execInitializer.setPropagatedVariables(Collections.<String, byte[]>emptyMap());
        }

        if (context.getAttribute(Script.ARGUMENTS_NAME) != null) {
            execInitializer.setSerializedArguments(
                    (Map<String, byte[]>) ((Serializable[]) context.getAttribute(Script.ARGUMENTS_NAME))[0]);
        } else {
            execInitializer.setSerializedArguments(Collections.<String, byte[]>emptyMap());
        }

        if (context.getAttribute(SchedulerConstants.CREDENTIALS_VARIABLE) != null) {
            execInitializer.setThirdPartyCredentials(
                    (Map<String, String>) context.getAttribute(SchedulerConstants.CREDENTIALS_VARIABLE));
        } else {
            execInitializer.setThirdPartyCredentials(Collections.<String, String>emptyMap());
        }

        if (context.getAttribute(SchedulerConstants.MULTI_NODE_TASK_NODESURL_BINDING_NAME) != null) {
            List<String> nodesURLs = (List<String>) context
                    .getAttribute(SchedulerConstants.MULTI_NODE_TASK_NODESURL_BINDING_NAME);
            execInitializer.setNodesURL(nodesURLs);
        } else {
            execInitializer.setNodesURL(Collections.<String>emptyList());
        }

        javaExecutable.internalInit(execInitializer, context);

        Serializable execute = javaExecutable
                .execute((TaskResult[]) context.getAttribute(SchedulerConstants.RESULTS_VARIABLE));

        if (propagatedVariables != null) {
            ((Map<String, Serializable>) context.getAttribute(SchedulerConstants.VARIABLES_BINDING_NAME))
                    .putAll(javaExecutable.getVariables());
        }

        output.close();
        error.close();
        return execute;

    } catch (Throwable e) {
        throw new ScriptException(new TaskException(getStackTraceAsString(e), e));
    }
}

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