1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.scxml2.test;
18
19 import org.apache.commons.scxml2.Evaluator;
20 import org.apache.commons.scxml2.env.jexl.JexlEvaluator;
21
22 /**
23 * Standalone SCXML interpreter, useful for command-line testing and
24 * debugging, where expressions are JEXL expressions.
25 *
26 * <p>USAGE:</p>
27 * <p><code>java org.apache.commons.scxml2.test.StandaloneJexlExpressions
28 * url</code></p>
29 * <p>or</p>
30 * <p><code>java org.apache.commons.scxml2.test.StandaloneJexlExpressions
31 * filename</code>
32 * </p>
33 *
34 * <p>RUNNING:</p>
35 * <ul>
36 * <li>Enter a space-separated list of "events"</li>
37 * <li>To quit, enter "quit"</li>
38 * <li>To populate a variable in the current context,
39 * type "name=value"</li>
40 * <li>To reset state machine, enter "reset"</li>
41 * </ul>
42 *
43 */
44 public final class StandaloneJexlExpressions {
45
46 /**
47 * Launcher.
48 * @param args The arguments, one expected, the URI or filename of the
49 * SCXML document
50 */
51 public static void main(final String[] args) {
52 if (args.length < 1) {
53 System.out.println("USAGE: java "
54 + StandaloneJexlExpressions.class.getName()
55 + "<url|filename>");
56 System.exit(-1);
57 }
58 Evaluator evaluator = new JexlEvaluator();
59 StandaloneUtils.execute(args[0], evaluator);
60 }
61
62 /**
63 * Discourage instantiation since this is a utility class.
64 */
65 private StandaloneJexlExpressions() {
66 super();
67 }
68
69 }
70