01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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.scxml.test;
18:
19: import org.apache.commons.scxml.Evaluator;
20: import org.apache.commons.scxml.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.scxml.test.StandaloneJexlExpressions
28: * url</code></p>
29: * <p>or</p>
30: * <p><code>java org.apache.commons.scxml.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: }
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