| /* |
| * 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.commons.jexl3; |
| |
| import org.apache.commons.jexl3.internal.Engine; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * Tests JexlContext (advanced) features. |
| */ |
| @SuppressWarnings({"UnnecessaryBoxing", "AssertEqualsBetweenInconvertibleTypes"}) |
| public class ContextNamespaceTest extends JexlTestCase { |
| |
| public ContextNamespaceTest() { |
| super("ContextNamespaceTest"); |
| } |
| |
| /* |
| * Accesses the thread context and cast it. |
| */ |
| public static class Taxes { |
| public double vat(double n) { |
| TaxesContext context = (TaxesContext) JexlEngine.getThreadContext(); |
| return n * context.getVAT() / 100.; |
| } |
| } |
| |
| /** |
| * A thread local context carrying a namespace and some inner constants. |
| */ |
| public static class TaxesContext extends MapContext implements JexlContext.ThreadLocal, JexlContext.NamespaceResolver { |
| private final Taxes taxes = new Taxes(); |
| private final double vat; |
| |
| TaxesContext(double vat) { |
| this.vat = vat; |
| } |
| |
| @Override |
| public Object resolveNamespace(String name) { |
| return "taxes".equals(name) ? taxes : null; |
| } |
| |
| public double getVAT() { |
| return vat; |
| } |
| } |
| |
| @Test |
| public void testThreadedContext() throws Exception { |
| JexlEngine jexl = new Engine(); |
| TaxesContext context = new TaxesContext(18.6); |
| String strs = "taxes:vat(1000)"; |
| JexlScript staxes = jexl.createScript(strs); |
| Object result = staxes.execute(context); |
| Assert.assertEquals(186., result); |
| } |
| |
| } |