jaroslav@111
|
1 |
/**
|
jaroslav@111
|
2 |
* Back 2 Browser Bytecode Translator
|
jaroslav@111
|
3 |
* Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
|
jaroslav@111
|
4 |
*
|
jaroslav@111
|
5 |
* This program is free software: you can redistribute it and/or modify
|
jaroslav@111
|
6 |
* it under the terms of the GNU General Public License as published by
|
jaroslav@111
|
7 |
* the Free Software Foundation, version 2 of the License.
|
jaroslav@111
|
8 |
*
|
jaroslav@111
|
9 |
* This program is distributed in the hope that it will be useful,
|
jaroslav@111
|
10 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
jaroslav@111
|
11 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
jaroslav@111
|
12 |
* GNU General Public License for more details.
|
jaroslav@111
|
13 |
*
|
jaroslav@111
|
14 |
* You should have received a copy of the GNU General Public License
|
jaroslav@111
|
15 |
* along with this program. Look for COPYING file in the top folder.
|
jaroslav@111
|
16 |
* If not, see http://opensource.org/licenses/GPL-2.0.
|
jaroslav@111
|
17 |
*/
|
jaroslav@109
|
18 |
package org.apidesign.bck2brwsr.mojo;
|
jaroslav@109
|
19 |
|
jaroslav@109
|
20 |
import org.apache.maven.plugin.AbstractMojo;
|
jaroslav@109
|
21 |
|
jaroslav@109
|
22 |
import java.io.File;
|
jaroslav@109
|
23 |
import java.io.FileWriter;
|
jaroslav@305
|
24 |
import java.io.IOException;
|
jaroslav@109
|
25 |
import java.net.MalformedURLException;
|
jaroslav@109
|
26 |
import java.net.URL;
|
jaroslav@109
|
27 |
import java.net.URLClassLoader;
|
jaroslav@109
|
28 |
import java.util.ArrayList;
|
jaroslav@109
|
29 |
import java.util.Collection;
|
jaroslav@109
|
30 |
import java.util.List;
|
jaroslav@109
|
31 |
import org.apache.maven.artifact.Artifact;
|
jaroslav@109
|
32 |
import org.apache.maven.plugin.MojoExecutionException;
|
jaroslav@109
|
33 |
import org.apache.maven.plugins.annotations.LifecyclePhase;
|
jaroslav@109
|
34 |
import org.apache.maven.plugins.annotations.Mojo;
|
jaroslav@109
|
35 |
import org.apache.maven.plugins.annotations.Parameter;
|
jaroslav@1245
|
36 |
import org.apache.maven.plugins.annotations.ResolutionScope;
|
jaroslav@109
|
37 |
import org.apache.maven.project.MavenProject;
|
jaroslav@305
|
38 |
import org.apidesign.vm4brwsr.Bck2Brwsr;
|
lubomir@849
|
39 |
import org.apidesign.vm4brwsr.ObfuscationLevel;
|
jaroslav@109
|
40 |
|
jaroslav@109
|
41 |
/** Compiles classes into JavaScript. */
|
jaroslav@1245
|
42 |
@Mojo(name="j2js",
|
jaroslav@1245
|
43 |
requiresDependencyResolution = ResolutionScope.COMPILE,
|
jaroslav@1245
|
44 |
defaultPhase=LifecyclePhase.PROCESS_CLASSES
|
jaroslav@1245
|
45 |
)
|
jaroslav@740
|
46 |
public class Java2JavaScript extends AbstractMojo {
|
jaroslav@740
|
47 |
public Java2JavaScript() {
|
jaroslav@109
|
48 |
}
|
jaroslav@109
|
49 |
/** Root of the class files */
|
jaroslav@109
|
50 |
@Parameter(defaultValue="${project.build.directory}/classes")
|
jaroslav@109
|
51 |
private File classes;
|
jaroslav@847
|
52 |
/** JavaScript file to generate */
|
jaroslav@109
|
53 |
@Parameter
|
jaroslav@109
|
54 |
private File javascript;
|
lubomir@849
|
55 |
|
jaroslav@847
|
56 |
/** Additional classes that should be pre-compiled into the javascript
|
jaroslav@847
|
57 |
* file. By default compiles all classes found under <code>classes</code>
|
jaroslav@847
|
58 |
* directory and their transitive closure.
|
jaroslav@847
|
59 |
*/
|
jaroslav@847
|
60 |
@Parameter
|
jaroslav@847
|
61 |
private List<String> compileclasses;
|
jaroslav@847
|
62 |
|
jaroslav@109
|
63 |
@Parameter(defaultValue="${project}")
|
jaroslav@109
|
64 |
private MavenProject prj;
|
lubomir@849
|
65 |
|
lubomir@860
|
66 |
/**
|
lubomir@860
|
67 |
* The obfuscation level for the generated JavaScript file.
|
lubomir@860
|
68 |
*
|
lubomir@860
|
69 |
* @since 0.5
|
lubomir@860
|
70 |
*/
|
lubomir@849
|
71 |
@Parameter(defaultValue="NONE")
|
lubomir@849
|
72 |
private ObfuscationLevel obfuscation;
|
jaroslav@109
|
73 |
|
jaroslav@109
|
74 |
@Override
|
jaroslav@109
|
75 |
public void execute() throws MojoExecutionException {
|
jaroslav@109
|
76 |
if (!classes.isDirectory()) {
|
jaroslav@109
|
77 |
throw new MojoExecutionException("Can't find " + classes);
|
jaroslav@109
|
78 |
}
|
jaroslav@109
|
79 |
|
jaroslav@109
|
80 |
List<String> arr = new ArrayList<String>();
|
jaroslav@134
|
81 |
long newest = collectAllClasses("", classes, arr);
|
jaroslav@109
|
82 |
|
jaroslav@847
|
83 |
if (compileclasses != null) {
|
jaroslav@847
|
84 |
arr.retainAll(compileclasses);
|
jaroslav@847
|
85 |
arr.addAll(compileclasses);
|
jaroslav@847
|
86 |
}
|
jaroslav@847
|
87 |
|
jaroslav@134
|
88 |
if (javascript.lastModified() > newest) {
|
jaroslav@134
|
89 |
return;
|
jaroslav@134
|
90 |
}
|
jaroslav@109
|
91 |
|
jaroslav@109
|
92 |
try {
|
jaroslav@1245
|
93 |
URLClassLoader url = buildClassLoader(classes, prj.getArtifacts());
|
jaroslav@109
|
94 |
FileWriter w = new FileWriter(javascript);
|
jaroslav@874
|
95 |
Bck2Brwsr.newCompiler().
|
jaroslav@874
|
96 |
obfuscation(obfuscation).
|
jaroslav@874
|
97 |
resources(url).
|
jaroslav@874
|
98 |
addRootClasses(arr.toArray(new String[0])).
|
jaroslav@874
|
99 |
generate(w);
|
jaroslav@109
|
100 |
w.close();
|
jaroslav@305
|
101 |
} catch (IOException ex) {
|
jaroslav@109
|
102 |
throw new MojoExecutionException("Can't compile", ex);
|
jaroslav@109
|
103 |
}
|
jaroslav@109
|
104 |
}
|
jaroslav@109
|
105 |
|
jaroslav@134
|
106 |
private static long collectAllClasses(String prefix, File toCheck, List<String> arr) {
|
jaroslav@109
|
107 |
File[] files = toCheck.listFiles();
|
jaroslav@109
|
108 |
if (files != null) {
|
jaroslav@134
|
109 |
long newest = 0L;
|
jaroslav@109
|
110 |
for (File f : files) {
|
jaroslav@134
|
111 |
long lastModified = collectAllClasses(prefix + f.getName() + "/", f, arr);
|
jaroslav@134
|
112 |
if (newest < lastModified) {
|
jaroslav@134
|
113 |
newest = lastModified;
|
jaroslav@134
|
114 |
}
|
jaroslav@109
|
115 |
}
|
jaroslav@134
|
116 |
return newest;
|
jaroslav@109
|
117 |
} else if (toCheck.getName().endsWith(".class")) {
|
jaroslav@847
|
118 |
final String cls = prefix.substring(0, prefix.length() - 7);
|
jaroslav@847
|
119 |
arr.add(cls);
|
jaroslav@134
|
120 |
return toCheck.lastModified();
|
jaroslav@134
|
121 |
} else {
|
jaroslav@134
|
122 |
return 0L;
|
jaroslav@109
|
123 |
}
|
jaroslav@109
|
124 |
}
|
jaroslav@109
|
125 |
|
jaroslav@109
|
126 |
private static URLClassLoader buildClassLoader(File root, Collection<Artifact> deps) throws MalformedURLException {
|
jaroslav@109
|
127 |
List<URL> arr = new ArrayList<URL>();
|
jaroslav@109
|
128 |
arr.add(root.toURI().toURL());
|
jaroslav@109
|
129 |
for (Artifact a : deps) {
|
jaroslav@847
|
130 |
if (a.getFile() != null) {
|
jaroslav@847
|
131 |
arr.add(a.getFile().toURI().toURL());
|
jaroslav@847
|
132 |
}
|
jaroslav@109
|
133 |
}
|
jaroslav@740
|
134 |
return new URLClassLoader(arr.toArray(new URL[0]), Java2JavaScript.class.getClassLoader());
|
jaroslav@109
|
135 |
}
|
jaroslav@109
|
136 |
}
|