本文整理了Java中org.mozilla.javascript.Context.enter()方法的一些代码示例，展示了Context.enter()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Context.enter()方法的具体详情如下：
包路径：org.mozilla.javascript.Context
类名称：Context
方法名：enter

Context.enter介绍

[英]Same as calling ContextFactory#enterContext() on the global ContextFactory instance.
[中]与在全局ContextFactory实例上调用ContextFactory#enterContext（）相同。

代码示例

代码示例来源：origin: apache/incubator-druid

public boolean applyObject(final Object input)
{
 // one and only one context per thread
 final Context cx = Context.enter();
 try {
  return applyInContext(cx, input);
 }
 finally {
  Context.exit();
 }
}

代码示例来源：origin: apache/incubator-druid

@Override
public double estimateSelectivity(BitmapIndexSelector indexSelector)
{
 final Context cx = Context.enter();
 try {
  return Filters.estimateSelectivity(dimension, indexSelector, makeStringPredicate(cx));
 }
 finally {
  Context.exit();
 }
}

代码示例来源：origin: apache/incubator-druid

@Override
public <T> T getBitmapResult(BitmapIndexSelector selector, BitmapResultFactory<T> bitmapResultFactory)
{
 final Context cx = Context.enter();
 try {
  return Filters.matchPredicate(dimension, selector, bitmapResultFactory, makeStringPredicate(cx));
 }
 finally {
  Context.exit();
 }
}

代码示例来源：origin: apache/incubator-druid

public JavaScriptPredicateFactory(final String script, final ExtractionFn extractionFn)
{
 Preconditions.checkNotNull(script, "script must not be null");
 this.script = script;
 this.extractionFn = extractionFn;
 final Context cx = Context.enter();
 try {
  cx.setOptimizationLevel(9);
  scope = cx.initStandardObjects();
  fnApply = cx.compileFunction(scope, script, "script", 1, null);
 }
 finally {
  Context.exit();
 }
}

代码示例来源：origin: facebook/stetho

/**
  * Setups a proper javascript context so that it can run javascript code properly under android.
  * For android we need to disable bytecode generation since the android vms don't understand JVM bytecode.
  * @return a proper javascript context
  */
 static @NonNull Context enterJsContext() {
  final Context jsContext = Context.enter();

  // If we cause the context to throw a runtime exception from this point
  // we need to make sure that exit the context.
  try {
   jsContext.setLanguageVersion(Context.VERSION_1_8);

   // We can't let Rhino to optimize the JS and to use a JIT because it would generate JVM bytecode
   // and android runs on DEX bytecode. Instead we need to go in interpreted mode.
   jsContext.setOptimizationLevel(-1);
  } catch (RuntimeException e) {
   // Something bad happened to the javascript context but it might still be usable.
   // The first thing to do is to exit the context and then propagate the error.
   Context.exit();
   throw e;
  }

  return jsContext;
 }
}

代码示例来源：origin: frohoff/ysoserial

IdScriptableObject idScriptableObject = (IdScriptableObject) nativeErrorConstructor.newInstance();
Context context = Context.enter();

代码示例来源：origin: galenframework/galen

public GalenJsExecutor() {
  this.context = Context.enter();
  this.scope = new ImporterTopLevel(context);
  
  this.loadFunction = new JsFunctionLoad();
  scope.defineProperty("load", loadFunction, ScriptableObject.DONTENUM);
  importAllMajorClasses();
}

代码示例来源：origin: pentaho/pentaho-kettle

@BeforeClass
public static void setUp() throws Exception {
 ctx = Context.enter();
 scope = ctx.initStandardObjects();
}

代码示例来源：origin: xtuhcy/gecco

@Override
@SuppressWarnings({ "unchecked" })
public void render(HttpRequest request, HttpResponse response, BeanMap beanMap, SpiderBean bean) {
  Context cx = Context.enter();
  ScriptableObject scope = cx.initSafeStandardObjects();
  String windowScript = "var window = {};var document = {};";
  cx.evaluateString(scope, windowScript, "window", 1, null);
  HtmlParser parser = new HtmlParser(request.getUrl(), response.getContent());
  for (Element ele : parser.$("script")) {
    String sc = ele.html();
    if (StringUtils.isNotEmpty(sc)) {
      try {
        cx.evaluateString(scope, sc, "", 1, null);
      } catch (Exception ex) {
        // ex.printStackTrace();
      }
    }
  }
  Map<String, Object> fieldMap = new HashMap<String, Object>();
  Set<Field> jsVarFields = ReflectionUtils.getAllFields(bean.getClass(), ReflectionUtils.withAnnotation(JSVar.class));
  for (Field jsVarField : jsVarFields) {
    Object value = injectJsVarField(request, beanMap, jsVarField, cx, scope);
    if(value != null) {
      fieldMap.put(jsVarField.getName(), value);
    }
  }
  beanMap.putAll(fieldMap);
  Context.exit();
}

代码示例来源：origin: rnewson/couchdb-lucene

private void init() throws IOException, JSONException {
  this.uuid = database.getOrCreateUuid();
  this.context = Context.enter();
  context.setClassShutter(new RestrictiveClassShutter());
  context.setOptimizationLevel(9);

代码示例来源：origin: rhino/js

/**
 * Same as calling {@link ContextFactory#enterContext()} on the global
 * ContextFactory instance.
 * @return a Context associated with the current thread
 * @see #getCurrentContext()
 * @see #exit()
 * @see #call(ContextAction)
 */
public static Context enter()
{
  return enter(null);
}

代码示例来源：origin: geogebra/geogebra

/**
 * Same as calling {@link ContextFactory#enterContext()} on the global
 * ContextFactory instance.
 * @return a Context associated with the current thread
 * @see #getCurrentContext()
 * @see #exit()
 * @see #call(ContextAction)
 */
public static Context enter()
{
  return enter(null);
}

代码示例来源：origin: org.apache.pig/pig

/**
 * @return the javascript context for the current thread
 */
private Context getContext() {
  Context context = cx.get();
  if (context == null) {
    context = Context.enter();
    cx.set(context);
  }
  return context;
}

代码示例来源：origin: alexo/wro4j

/**
 * Makes sure the context is properly initialized.
 */
private void initContext() {
 if (Context.getCurrentContext() == null) {
  Context.enter();
 }
}

代码示例来源：origin: rhino/js

/**
 * The method implements {@link ContextFactory#call(ContextAction)} logic.
 */
static Object call(ContextFactory factory, ContextAction action) {
  Context cx = enter(null, factory);
  try {
    return action.run(cx);
  }
  finally {
    exit();
  }
}

代码示例来源：origin: geogebra/geogebra

/**
 * The method implements {@link ContextFactory#call(ContextAction)} logic.
 */
static Object call(ContextFactory factory, ContextAction action) {
  Context cx = enter(null, factory);
  try {
    return action.run(cx);
  }
  finally {
    exit();
  }
}

代码示例来源：origin: io.druid/druid-processing

public boolean applyObject(final Object input)
{
 // one and only one context per thread
 final Context cx = Context.enter();
 try {
  return applyInContext(cx, input);
 }
 finally {
  Context.exit();
 }
}

代码示例来源：origin: io.druid/druid-processing

@Override
public <T> T getBitmapResult(BitmapIndexSelector selector, BitmapResultFactory<T> bitmapResultFactory)
{
 final Context cx = Context.enter();
 try {
  return Filters.matchPredicate(dimension, selector, bitmapResultFactory, makeStringPredicate(cx));
 }
 finally {
  Context.exit();
 }
}

代码示例来源：origin: org.apache.druid/druid-processing

@Override
public <T> T getBitmapResult(BitmapIndexSelector selector, BitmapResultFactory<T> bitmapResultFactory)
{
 final Context cx = Context.enter();
 try {
  return Filters.matchPredicate(dimension, selector, bitmapResultFactory, makeStringPredicate(cx));
 }
 finally {
  Context.exit();
 }
}

代码示例来源：origin: org.apache.druid/druid-processing

@Override
public double estimateSelectivity(BitmapIndexSelector indexSelector)
{
 final Context cx = Context.enter();
 try {
  return Filters.estimateSelectivity(dimension, indexSelector, makeStringPredicate(cx));
 }
 finally {
  Context.exit();
 }
}