Java Code Examples for javax.script.Bindings#remove()

The following examples show how to use javax.script.Bindings#remove() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ScopeTest.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void megamorphicPropertyReadTest() throws ScriptException {
    final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
    final ScriptEngine engine = factory.getScriptEngine();
    final Bindings scope = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    boolean ret;

    // Why 16 is the upper limit of this loop? The default nashorn dynalink megamorphic threshold is 16.
    // See jdk.nashorn.internal.runtime.linker.Bootstrap.NASHORN_DEFAULT_UNSTABLE_RELINK_THRESHOLD
    // We do, 'eval' of the same in this loop twice. So, 16*2 = 32 times that callsite in the script
    // is exercised - much beyond the default megamorphic threshold.

    for (int i = 0; i < 16; i++) {
        scope.remove(VAR_NAME);
        ret = lookupVar(engine, VAR_NAME);
        assertFalse(ret, "Expected false in iteration " + i);
        scope.put(VAR_NAME, "foo");
        ret = lookupVar(engine, VAR_NAME);
        assertTrue(ret, "Expected true in iteration " + i);
    }
}
Example 2
Source File: ScopeTest.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void megamorphicPropertyReadTest() throws ScriptException {
    final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
    final ScriptEngine engine = factory.getScriptEngine();
    final Bindings scope = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    boolean ret;

    // Why 16 is the upper limit of this loop? The default nashorn dynalink megamorphic threshold is 16.
    // See jdk.nashorn.internal.runtime.linker.Bootstrap.NASHORN_DEFAULT_UNSTABLE_RELINK_THRESHOLD
    // We do, 'eval' of the same in this loop twice. So, 16*2 = 32 times that callsite in the script
    // is exercised - much beyond the default megamorphic threshold.

    for (int i = 0; i < 16; i++) {
        scope.remove(VAR_NAME);
        ret = lookupVar(engine, VAR_NAME);
        assertFalse(ret, "Expected false in iteration " + i);
        scope.put(VAR_NAME, "foo");
        ret = lookupVar(engine, VAR_NAME);
        assertTrue(ret, "Expected true in iteration " + i);
    }
}
Example 3
Source File: ScopeTest.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void megamorphicPropertyReadTest() throws ScriptException {
    final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
    final ScriptEngine engine = factory.getScriptEngine();
    final Bindings scope = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    boolean ret;

    // Why 16 is the upper limit of this loop? The default nashorn dynalink megamorphic threshold is 16.
    // See jdk.nashorn.internal.runtime.linker.Bootstrap.NASHORN_DEFAULT_UNSTABLE_RELINK_THRESHOLD
    // We do, 'eval' of the same in this loop twice. So, 16*2 = 32 times that callsite in the script
    // is exercised - much beyond the default megamorphic threshold.

    for (int i = 0; i < 16; i++) {
        scope.remove(VAR_NAME);
        ret = lookupVar(engine, VAR_NAME);
        assertFalse(ret, "Expected false in iteration " + i);
        scope.put(VAR_NAME, "foo");
        ret = lookupVar(engine, VAR_NAME);
        assertTrue(ret, "Expected true in iteration " + i);
    }
}
Example 4
Source File: ScopeTest.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void megamorphicPropertyReadTest() throws ScriptException {
    final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
    final ScriptEngine engine = factory.getScriptEngine();
    final Bindings scope = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    boolean ret;

    // Why 16 is the upper limit of this loop? The default nashorn dynalink megamorphic threshold is 16.
    // See jdk.nashorn.internal.runtime.linker.Bootstrap.NASHORN_DEFAULT_UNSTABLE_RELINK_THRESHOLD
    // We do, 'eval' of the same in this loop twice. So, 16*2 = 32 times that callsite in the script
    // is exercised - much beyond the default megamorphic threshold.

    for (int i = 0; i < 16; i++) {
        scope.remove(VAR_NAME);
        ret = lookupVar(engine, VAR_NAME);
        assertFalse(ret, "Expected false in iteration " + i);
        scope.put(VAR_NAME, "foo");
        ret = lookupVar(engine, VAR_NAME);
        assertTrue(ret, "Expected true in iteration " + i);
    }
}
Example 5
Source File: ScopeTest.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void megamorphicPropertyReadTest() throws ScriptException {
    final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
    final ScriptEngine engine = factory.getScriptEngine();
    final Bindings scope = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    boolean ret;

    // Why 16 is the upper limit of this loop? The default nashorn dynalink megamorphic threshold is 16.
    // See jdk.nashorn.internal.runtime.linker.Bootstrap.NASHORN_DEFAULT_UNSTABLE_RELINK_THRESHOLD
    // We do, 'eval' of the same in this loop twice. So, 16*2 = 32 times that callsite in the script
    // is exercised - much beyond the default megamorphic threshold.

    for (int i = 0; i < 16; i++) {
        scope.remove(VAR_NAME);
        ret = lookupVar(engine, VAR_NAME);
        assertFalse(ret, "Expected false in iteration " + i);
        scope.put(VAR_NAME, "foo");
        ret = lookupVar(engine, VAR_NAME);
        assertTrue(ret, "Expected true in iteration " + i);
    }
}
Example 6
Source File: ScopeTest.java    From jdk8u_nashorn with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void megamorphicPropertyReadTest() throws ScriptException {
    final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
    final ScriptEngine engine = factory.getScriptEngine();
    final Bindings scope = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    boolean ret;

    // Why 16 is the upper limit of this loop? The default nashorn dynalink megamorphic threshold is 16.
    // See jdk.nashorn.internal.runtime.linker.Bootstrap.NASHORN_DEFAULT_UNSTABLE_RELINK_THRESHOLD
    // We do, 'eval' of the same in this loop twice. So, 16*2 = 32 times that callsite in the script
    // is exercised - much beyond the default megamorphic threshold.

    for (int i = 0; i < 16; i++) {
        scope.remove(VAR_NAME);
        ret = lookupVar(engine, VAR_NAME);
        assertFalse(ret, "Expected false in iteration " + i);
        scope.put(VAR_NAME, "foo");
        ret = lookupVar(engine, VAR_NAME);
        assertTrue(ret, "Expected true in iteration " + i);
    }
}
Example 7
Source File: GremlinGroovyScriptEngineOverGraphTest.java    From tinkerpop with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldAllowFunctionsUsedInClosure() throws ScriptException {
    final Graph graph = TinkerFactory.createModern();
    final GraphTraversalSource g = graph.traversal();
    final GremlinGroovyScriptEngine engine = new GremlinGroovyScriptEngine();

    final Bindings bindings = engine.createBindings();
    bindings.put("g", g);
    bindings.put("#jsr223.groovy.engine.keep.globals", "phantom");
    bindings.put("vadas", convertToVertexId(graph, "vadas"));

    // this works on its own when the function and the line that uses it is in one "script".  this is the
    // current workaround
    assertEquals(g.V(convertToVertexId(graph, "vadas")).next(), engine.eval("def isVadas(v){v.value('name')=='vadas'};g.V().filter{isVadas(it.get())}.next()", bindings));

    // let's reset this piece and make sure isVadas is not hanging around.
    engine.reset();

    // validate that isVadas throws an exception since it is not defined
    try {
        engine.eval("isVadas(g.V(vadas).next())", bindings);

        // fail the test if the above doesn't throw an exception
        fail();
    } catch (Exception ex) {
        // this is good...we want this. it means isVadas isn't hanging about
    }

    // now...define the function separately on its own in one script
    bindings.remove("#jsr223.groovy.engine.keep.globals");
    engine.eval("def isVadas(v){v.value('name')=='vadas'}", bindings);

    // make sure the function works on its own...no problem
    assertEquals(true, engine.eval("isVadas(g.V(vadas).next())", bindings));

    // make sure the function works in a closure...this generates a StackOverflowError
    assertEquals(g.V(convertToVertexId(graph, "vadas")).next(), engine.eval("g.V().filter{isVadas(it.get())}.next()", bindings));
}
Example 8
Source File: Routes.java    From logging-log4j2 with Apache License 2.0 5 votes vote down vote up 
/**
 * Returns the pattern.
 * @param event The log event passed to the script (if there is a script.)
 * @param scriptStaticVariables The script's static variables.
 * @return the pattern.
 */
public String getPattern(final LogEvent event, final ConcurrentMap<Object, Object> scriptStaticVariables) {
    if (patternScript != null) {
        final ScriptManager scriptManager = configuration.getScriptManager();
        final Bindings bindings = scriptManager.createBindings(patternScript);
        bindings.put(STATIC_VARIABLES_KEY, scriptStaticVariables);
        bindings.put(LOG_EVENT_KEY, event);
        final Object object = scriptManager.execute(patternScript.getName(), bindings);
        bindings.remove(LOG_EVENT_KEY);
        return Objects.toString(object, null);
    }
    return pattern;
}