diff options
Diffstat (limited to 'branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScript.java')
-rw-r--r-- | branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScript.java | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScript.java b/branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScript.java deleted file mode 100644 index 3552372223..0000000000 --- a/branches/sca-java-M2/sca/services/containers/container.javascript/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScript.java +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.container.javascript.rhino; - -import java.util.HashMap; -import java.util.Iterator; -import java.util.Map; - -import org.mozilla.javascript.Context; -import org.mozilla.javascript.ContextFactory; -import org.mozilla.javascript.ImporterTopLevel; -import org.mozilla.javascript.Script; -import org.mozilla.javascript.Scriptable; - -/** - * A RhinoScript represents a compiled JavaScript script - */ -public class RhinoScript { - - protected String scriptName; - - protected String script; - - protected Scriptable scriptScope; - - protected Map<String, Class> responseClasses; - - protected ClassLoader classLoader; - - /* - * Enable dynamic scopes so a script can be used concurrently with a global shared scope and individual execution scopes. See - * http://www.mozilla.org/rhino/scopes.html - */ - private static class MyFactory extends ContextFactory { - protected boolean hasFeature(Context cx, int featureIndex) { - if (featureIndex == Context.FEATURE_DYNAMIC_SCOPE) { - return true; - } - return super.hasFeature(cx, featureIndex); - } - } - - static { - ContextFactory.initGlobal(new MyFactory()); - } - - /** - * Create a new RhinoScript. - * - * @param scriptName - * the name of the script. Can be anything, only used in messages to identify the script - * @param script - * the complete script - */ - public RhinoScript(String scriptName, String script) { - this(scriptName, script, (Map) null, null); - } - - /** - * Create a new RhinoInvoker. - * - * @param scriptName - * the name of the script. Can be anything, only used in messages to identify the script - * @param script - * the complete script - * @param context - * name-value pairs that are added in to the scope where the script is compiled. May be null. The value objects are made available to - * the script by using a variable with the name. - * @param classLoader - * the ClassLoader Rhino should use to locate any user Java classes used in the script - */ - public RhinoScript(String scriptName, String script, Map context, ClassLoader classLoader) { - this.scriptName = scriptName; - this.script = script; - this.responseClasses = new HashMap<String, Class>(); - this.classLoader = classLoader; - initScriptScope(scriptName, script, context, classLoader); - } - - /** - * Create a new invokeable instance of the script - * - * @return a RhinoScriptInstance - */ - public RhinoScriptInstance createRhinoScriptInstance() { - return createRhinoScriptInstance(null); - } - - /** - * Create a new invokeable instance of the script - * - * @param context - * objects to add to scope of the script instance - * @return a RhinoScriptInstance - */ - public RhinoScriptInstance createRhinoScriptInstance(Map<String, Object> context) { - Scriptable instanceScope = createInstanceScope(context); - RhinoScriptInstance rsi = new RhinoScriptInstance(scriptScope, instanceScope, context, responseClasses); - return rsi; - } - - /** - * Initialize the Rhino Scope for this script instance - */ - public Scriptable createInstanceScope(Map<String, Object> context) { - Context cx = Context.enter(); - try { - - Scriptable instanceScope = cx.newObject(scriptScope); - instanceScope.setPrototype(scriptScope); - instanceScope.setParentScope(null); - - addContexts(instanceScope, context); - - return instanceScope; - - } finally { - Context.exit(); - } - } - - /** - * Create a Rhino scope and compile the script into it - */ - public void initScriptScope(String fileName, String scriptCode, Map context, ClassLoader cl) { - Context cx = Context.enter(); - try { - if (cl != null) { - // TODO: broken with the way the tuscany launcher now uses class loaders - // cx.setApplicationClassLoader(cl); - } - this.scriptScope = new ImporterTopLevel(cx, true); - Script compiledScript = cx.compileString(scriptCode, fileName, 1, null); - compiledScript.exec(cx, scriptScope); - addContexts(scriptScope, context); - - } finally { - Context.exit(); - } - } - - /** - * Add the context to the scope. This will make the objects available to a script by using the name it was added with. - */ - protected void addContexts(Scriptable scope, Map contexts) { - if (contexts != null) { - for (Iterator i = contexts.keySet().iterator(); i.hasNext();) { - String name = (String) i.next(); - Object value = contexts.get(name); - if (value != null) { - scope.put(name, scope, Context.toObject(value, scope)); - } - } - } - } - - public String getScript() { - return script; - } - - public String getScriptName() { - return scriptName; - } - - public Scriptable getScriptScope() { - return scriptScope; - } - - public Map<String, Class> getResponseClasses() { - return responseClasses; - } - - public ClassLoader getClassLoader() { - return classLoader; - } - - /** - * Set the Java type of a response value. JavaScript is dynamically typed so Rhino cannot always work out what the intended Java type of a - * response should be, for example should the statement "return 42" be a Java int, or Integer or Double etc. When Rhino can't determine the type - * it will default to returning a String, using this method enables overriding the Rhino default to use a specific Java type. - */ - public void setResponseClass(String functionName, Class responseClasses) { - this.responseClasses.put(functionName, responseClasses); - } - - public RhinoSCAConfig getSCAConfig() { - return new RhinoSCAConfig(getScriptScope()); - } - - public void setScript(String script) { - this.script = script; - } - -} |