Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
Evaluator |
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| 2.6666666666666665;2.667 | ||||
FX |
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| 2.6666666666666665;2.667 |
1 | /* | |
2 | * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. | |
3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 | * | |
5 | * This code is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 only, as | |
7 | * published by the Free Software Foundation. Sun designates this | |
8 | * particular file as subject to the "Classpath" exception as provided | |
9 | * by Sun in the LICENSE file that accompanied this code. | |
10 | * | |
11 | * This code is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | * version 2 for more details (a copy is included in the LICENSE file that | |
15 | * accompanied this code). | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License version | |
18 | * 2 along with this work; if not, write to the Free Software Foundation, | |
19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 | * | |
21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
22 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
23 | * have any questions. | |
24 | */ | |
25 | ||
26 | package javafx.lang; | |
27 | import com.sun.javafx.api.JavaFXScriptEngine; | |
28 | import javax.script.ScriptEngine; | |
29 | import javax.script.ScriptEngineManager; | |
30 | import javax.script.ScriptException; | |
31 | ||
32 | // factored out to avoid linkage error for javax.script.* on Java 1.5 | |
33 | 0 | class Evaluator { |
34 | static Object eval(String script) throws ScriptException { | |
35 | 5 | ScriptEngineManager manager = new ScriptEngineManager(); |
36 | 5 | ScriptEngine scrEng = manager.getEngineByExtension("javafx"); |
37 | 5 | JavaFXScriptEngine engine = (JavaFXScriptEngine)scrEng; |
38 | 5 | if (engine == null) |
39 | 0 | throw new ScriptException("no scripting engine available"); |
40 | 5 | return engine.eval(script); |
41 | } | |
42 | } | |
43 | ||
44 | /** | |
45 | * FX, analogous to java.lang.System, is a place to store static utility methods. | |
46 | * | |
47 | * @author Brian Goetz | |
48 | */ | |
49 | 0 | public class FX { |
50 | public static boolean isSameObject(Object a, Object b) { | |
51 | 0 | return a == b; |
52 | } | |
53 | ||
54 | /** | |
55 | * Evaluates a JavaFX Script source string and returns its result, if any. | |
56 | * For example, | |
57 | * <br/> | |
58 | * This method depends upon the JavaFX Script compiler API being accessible | |
59 | * by the application, such as including the <code>javafxc.jar</code> file | |
60 | * in the application's classpath. | |
61 | * <br/> | |
62 | * Note: this method provides only the simplest scripting functionality; | |
63 | * the script is evaluated without any specified context state, nor can | |
64 | * any state it creates during evaluation be reused by other scripts. For | |
65 | * sophisticated scripting applications, use the Java Scripting API | |
66 | * (<code>javax.scripting</code>). | |
67 | * | |
68 | * @param script the JavaFX Script source to evaluate | |
69 | * @return the results from evaluating the script, or null if no results | |
70 | * are returned by the script. | |
71 | * @throws javax.script.ScriptException | |
72 | */ | |
73 | public static Object eval(String script) { | |
74 | try { | |
75 | 5 | return Evaluator.eval(script); |
76 | 0 | } catch (Exception e) { |
77 | 0 | throw new RuntimeException(e); |
78 | } | |
79 | } | |
80 | } |