本文整理汇总了Java中javax.script.ScriptEngine.getContext方法的典型用法代码示例。如果您正苦于以下问题:Java ScriptEngine.getContext方法的具体用法?Java ScriptEngine.getContext怎么用?Java ScriptEngine.getContext使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.script.ScriptEngine
的用法示例。
在下文中一共展示了ScriptEngine.getContext方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: multiThreadedPrimitiveTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to primitive prototype properties for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedPrimitiveTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final Object obj1 = e.eval("String.prototype.foo = 'original context';", origContext);
final Object obj2 = e.eval("String.prototype.foo = 'new context';", newCtxt);
assertEquals(obj1, "original context");
assertEquals(obj2, "new context");
final String sharedScript = "''.foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete String.prototype.foo; Object.prototype.foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
Assert.assertEquals(e.eval(sharedScript), "original context");
Assert.assertEquals(e.eval(sharedScript, newCtxt), "newer context");
}
示例2: invokeFunctionInGlobalScopeTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
@Test
public void invokeFunctionInGlobalScopeTest() throws Exception {
final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
final ScriptContext ctxt = engine.getContext();
// define a function called "func"
engine.eval("func = function() { return 42 }");
// move ENGINE_SCOPE Bindings to GLOBAL_SCOPE
ctxt.setBindings(ctxt.getBindings(ScriptContext.ENGINE_SCOPE), ScriptContext.GLOBAL_SCOPE);
// create a new Bindings and set as ENGINE_SCOPE
ctxt.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
// define new function that calls "func" now in GLOBAL_SCOPE
engine.eval("newfunc = function() { return func() }");
// call "newfunc" and check the return value
final Object value = ((Invocable)engine).invokeFunction("newfunc");
assertTrue(((Number)value).intValue() == 42);
}
示例3: EngineMap
import javax.script.ScriptEngine; //导入方法依赖的package包/类
public EngineMap()
{
this.map = Collections.synchronizedMap(new EnumMap<>(Engine.class));
final ScriptEngine js = Engine.JAVASCRIPT.newScriptEngine();
this.map.put(Engine.JAVASCRIPT, js);
try
{
js.eval("engines = {}");
}
catch (final ScriptException e)
{
throw new RuntimeException(e); // should never happen
}
final Bindings engines = (Bindings) js.get("engines");
engines.put("js", js);
this.context = js.getContext();
engines.put("context", this.context);
for (final Engine engine : Engine.values())
this.map.computeIfAbsent(engine, e ->
{
final ScriptEngine scriptEngine = e.newScriptEngine(this.context);
((Bindings) scriptEngine.get("engines")).put(e.getName(), scriptEngine);
return scriptEngine;
});
}
示例4: multiThreadedVarTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to defined global variables for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedVarTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final String sharedScript = "foo";
assertEquals(e.eval("var foo = 'original context';", origContext), null);
assertEquals(e.eval("var foo = 'new context';", newCtxt), null);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
assertEquals(e.eval("var foo = 'newer context';", newCtxt), null);
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
assertEquals(e.eval(sharedScript), "original context");
assertEquals(e.eval(sharedScript, newCtxt), "newer context");
}
示例5: multiThreadedGlobalTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to undefined global variables for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedGlobalTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
assertEquals(e.eval("foo = 'original context';", origContext), "original context");
assertEquals(e.eval("foo = 'new context';", newCtxt), "new context");
final String sharedScript = "foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete foo; foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
Assert.assertEquals(e.eval(sharedScript), "original context");
Assert.assertEquals(e.eval(sharedScript, newCtxt), "newer context");
}
示例6: multiThreadedAccessorTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to prototype user accessor properties for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedAccessorTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.eval("Object.defineProperty(Object.prototype, 'foo', { get: function() 'original context' })", origContext);
e.eval("Object.defineProperty(Object.prototype, 'foo', { get: function() 'new context', configurable: true })", newCtxt);
final String sharedScript = "({}).foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete Object.prototype.foo; Object.prototype.foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
}
示例7: multiThreadedPrimitiveAccessorTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to primitive prototype user accessor properties for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedPrimitiveAccessorTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.eval("Object.defineProperty(String.prototype, 'foo', { get: function() 'original context' })", origContext);
e.eval("Object.defineProperty(String.prototype, 'foo', { get: function() 'new context' })", newCtxt);
final String sharedScript = "''.foo";
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
final Object obj3 = e.eval("delete String.prototype.foo; Object.prototype.foo = 'newer context';", newCtxt);
assertEquals(obj3, "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
}
示例8: multiThreadedFunctionTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded scope function invocation for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedFunctionTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
e.eval(new URLReader(ScopeTest.class.getResource("resources/func.js")), origContext);
assertEquals(origContext.getAttribute("scopeVar"), 1);
assertEquals(e.eval("scopeTest()"), 1);
e.eval(new URLReader(ScopeTest.class.getResource("resources/func.js")), newCtxt);
assertEquals(newCtxt.getAttribute("scopeVar"), 1);
assertEquals(e.eval("scopeTest();", newCtxt), 1);
assertEquals(e.eval("scopeVar = 3;", newCtxt), 3);
assertEquals(newCtxt.getAttribute("scopeVar"), 3);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, "scopeTest()", 1, 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, "scopeTest()", 3, 1000));
t1.start();
t2.start();
t1.join();
t2.join();
}
示例9: getterSetterTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to global getters and setters for shared script classes with multiple globals.
*/
@Test
public static void getterSetterTest() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final String sharedScript = "accessor1";
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), origContext);
assertEquals(e.eval("accessor1 = 1;"), 1);
assertEquals(e.eval(sharedScript), 1);
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), newCtxt);
assertEquals(e.eval("accessor1 = 2;", newCtxt), 2);
assertEquals(e.eval(sharedScript, newCtxt), 2);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, 1, 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, 2, 1000));
t1.start();
t2.start();
t1.join();
t2.join();
assertEquals(e.eval(sharedScript), 1);
assertEquals(e.eval(sharedScript, newCtxt), 2);
assertEquals(e.eval("v"), 1);
assertEquals(e.eval("v", newCtxt), 2);
}
示例10: getterSetter2Test
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to global getters and setters for shared script classes with multiple globals.
*/
@Test
public static void getterSetter2Test() throws ScriptException, InterruptedException {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final String sharedScript = "accessor2";
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), origContext);
assertEquals(e.eval("accessor2 = 1;"), 1);
assertEquals(e.eval(sharedScript), 1);
e.eval(new URLReader(ScopeTest.class.getResource("resources/gettersetter.js")), newCtxt);
assertEquals(e.eval("accessor2 = 2;", newCtxt), 2);
assertEquals(e.eval(sharedScript, newCtxt), 2);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, 1, 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, 2, 1000));
t1.start();
t2.start();
t1.join();
t2.join();
assertEquals(e.eval(sharedScript), 1);
assertEquals(e.eval(sharedScript, newCtxt), 2);
assertEquals(e.eval("x"), 1);
assertEquals(e.eval("x", newCtxt), 2);
}
示例11: testGlobalScopeSearch
import javax.script.ScriptEngine; //导入方法依赖的package包/类
@Test
public void testGlobalScopeSearch() throws Exception {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final ScriptContext c = e.getContext();
c.setAttribute("name1234", "value", ScriptContext.GLOBAL_SCOPE);
assertEquals(c.getAttribute("name1234"), "value");
assertEquals(c.getAttributesScope("name1234"),
ScriptContext.GLOBAL_SCOPE);
}
示例12: testScriptContextGetRemoveUndefined
import javax.script.ScriptEngine; //导入方法依赖的package包/类
@Test
public void testScriptContextGetRemoveUndefined() throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
final ScriptEngine e = manager.getEngineByName("nashorn");
final ScriptContext ctx = e.getContext();
assertNull(ctx.getAttribute("undefinedname", ScriptContext.ENGINE_SCOPE));
assertNull(ctx.removeAttribute("undefinedname", ScriptContext.ENGINE_SCOPE));
}
示例13: multiThreadedLetTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
/**
* Test multi-threaded access to global lexically declared variables for shared script classes with multiple globals.
*/
@Test
public static void multiThreadedLetTest() throws ScriptException, InterruptedException {
final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
final ScriptEngine e = factory.getScriptEngine(LANGUAGE_ES6);
final Bindings b = e.createBindings();
final ScriptContext origContext = e.getContext();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
final String sharedScript = "foo";
assertEquals(e.eval("let foo = 'original context';", origContext), null);
assertEquals(e.eval("let foo = 'new context';", newCtxt), null);
final Thread t1 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t2 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "new context", 1000));
t1.start();
t2.start();
t1.join();
t2.join();
assertEquals(e.eval("foo = 'newer context';", newCtxt), "newer context");
final Thread t3 = new Thread(new ScriptRunner(e, origContext, sharedScript, "original context", 1000));
final Thread t4 = new Thread(new ScriptRunner(e, newCtxt, sharedScript, "newer context", 1000));
t3.start();
t4.start();
t3.join();
t4.join();
assertEquals(e.eval(sharedScript), "original context");
assertEquals(e.eval(sharedScript, newCtxt), "newer context");
}
示例14: getScriptContext
import javax.script.ScriptEngine; //导入方法依赖的package包/类
public ScriptContext getScriptContext(ScriptEngine engine)
{
return engine.getContext();
}
示例15: multiGlobalTest
import javax.script.ScriptEngine; //导入方法依赖的package包/类
@Test
public void multiGlobalTest() {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
final Bindings b = e.createBindings();
final ScriptContext newCtxt = new SimpleScriptContext();
newCtxt.setBindings(b, ScriptContext.ENGINE_SCOPE);
try {
final Object obj1 = e.eval("Object");
final Object obj2 = e.eval("Object", newCtxt);
Assert.assertNotEquals(obj1, obj2);
Assert.assertNotNull(obj1);
Assert.assertNotNull(obj2);
Assert.assertEquals(obj1.toString(), obj2.toString());
e.eval("x = 'hello'");
e.eval("x = 'world'", newCtxt);
Object x1 = e.getContext().getAttribute("x");
Object x2 = newCtxt.getAttribute("x");
Assert.assertNotEquals(x1, x2);
Assert.assertEquals(x1, "hello");
Assert.assertEquals(x2, "world");
x1 = e.eval("x");
x2 = e.eval("x", newCtxt);
Assert.assertNotEquals(x1, x2);
Assert.assertEquals(x1, "hello");
Assert.assertEquals(x2, "world");
final ScriptContext origCtxt = e.getContext();
e.setContext(newCtxt);
e.eval("y = new Object()");
e.eval("y = new Object()", origCtxt);
final Object y1 = origCtxt.getAttribute("y");
final Object y2 = newCtxt.getAttribute("y");
Assert.assertNotEquals(y1, y2);
final Object yeval1 = e.eval("y");
final Object yeval2 = e.eval("y", origCtxt);
Assert.assertNotEquals(yeval1, yeval2);
Assert.assertEquals("[object Object]", y1.toString());
Assert.assertEquals("[object Object]", y2.toString());
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
}