jaroslav@1584
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/**
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* Back 2 Browser Bytecode Translator
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* Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. Look for COPYING file in the top folder.
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* If not, see http://opensource.org/licenses/GPL-2.0.
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*/
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package org.apidesign.bck2brwsr.mojo;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.Writer;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import java.util.jar.Attributes;
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import java.util.jar.JarEntry;
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import java.util.jar.JarOutputStream;
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import java.util.jar.Manifest;
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import org.apache.maven.artifact.Artifact;
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import org.apache.maven.plugin.AbstractMojo;
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import org.apache.maven.plugin.MojoExecutionException;
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import org.apache.maven.plugin.MojoFailureException;
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import org.apache.maven.plugins.annotations.Component;
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import org.apache.maven.plugins.annotations.LifecyclePhase;
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import org.apache.maven.plugins.annotations.Mojo;
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import org.apache.maven.plugins.annotations.Parameter;
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import org.apache.maven.plugins.annotations.ResolutionScope;
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import org.apache.maven.project.MavenProject;
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import org.apache.maven.project.MavenProjectHelper;
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import org.apidesign.bck2brwsr.aot.Bck2BrwsrJars;
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import org.apidesign.vm4brwsr.Bck2Brwsr;
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import org.apidesign.vm4brwsr.ObfuscationLevel;
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/**
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*
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* @author Jaroslav Tulach
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* @since 0.12
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*/
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@Mojo(name = "library",
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requiresDependencyResolution = ResolutionScope.COMPILE_PLUS_RUNTIME,
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defaultPhase = LifecyclePhase.PACKAGE
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)
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public class AOTLibrary extends AbstractMojo {
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@Parameter(defaultValue = "${project}")
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private MavenProject prj;
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@Component
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private MavenProjectHelper projectHelper;
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@Parameter(defaultValue = "${project.build.directory}/${project.build.finalName}.jar")
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private File mainJar;
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@Parameter(defaultValue = "${project.build.finalName}-min.js")
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private String minified;
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@Parameter(defaultValue = "${project.build.finalName}-debug.js")
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private String debug;
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@Parameter(defaultValue = "${project.build.directory}/${project.build.finalName}-bck2brwsr.jar")
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private File aotJar;
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@Parameter
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private String[] exports;
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@Parameter
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private String[] aotDeps;
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@Override
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public void execute() throws MojoExecutionException, MojoFailureException {
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URLClassLoader loader;
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try {
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loader = buildClassLoader(mainJar, prj.getArtifacts());
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} catch (MalformedURLException ex) {
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throw new MojoFailureException("Can't initialize classloader");
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}
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try {
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Manifest m = new Manifest();
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if (!"false".equals(minified)) {
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Attributes attr = new Attributes();
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attr.putValue("Bck2BrwsrArtifactId", prj.getArtifactId());
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attr.putValue("Bck2BrwsrGroupId", prj.getGroupId());
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attr.putValue("Bck2BrwsrVersion", prj.getVersion());
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attr.putValue("Bck2BrwsrMinified", "true");
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m.getEntries().put(minified, attr);
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}
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if (!"false".equals(debug)) {
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Attributes attr = new Attributes();
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attr.putValue("Bck2BrwsrArtifactId", prj.getArtifactId());
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attr.putValue("Bck2BrwsrGroupId", prj.getGroupId());
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attr.putValue("Bck2BrwsrVersion", prj.getVersion());
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attr.putValue("Bck2BrwsrDebug", "true");
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m.getEntries().put(debug, attr);
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}
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if (aotDeps != null) {
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for (Artifact a : prj.getArtifacts()) {
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if (!matches(aotDeps, a)) {
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continue;
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}
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{
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Attributes attr = new Attributes();
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attr.putValue("Bck2BrwsrArtifactId", a.getArtifactId());
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attr.putValue("Bck2BrwsrGroupId", a.getGroupId());
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attr.putValue("Bck2BrwsrVersion", a.getVersion());
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attr.putValue("Bck2BrwsrDebug", "true");
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m.getEntries().put(artifactName(a, true), attr);
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}
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{
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Attributes attr = new Attributes();
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attr.putValue("Bck2BrwsrArtifactId", a.getArtifactId());
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attr.putValue("Bck2BrwsrGroupId", a.getGroupId());
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attr.putValue("Bck2BrwsrVersion", a.getVersion());
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attr.putValue("Bck2BrwsrMinified", "true");
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m.getEntries().put(artifactName(a, false), attr);
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}
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}
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}
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FileOutputStream fos = new FileOutputStream(this.aotJar);
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JarOutputStream os = new JarOutputStream(fos, m);
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if (!"false".equals(debug)) {
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os.putNextEntry(new JarEntry(debug));
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Writer w = new OutputStreamWriter(os, "UTF-8");
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configureMain(loader).
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obfuscation(ObfuscationLevel.NONE).
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generate(w);
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w.flush();
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os.closeEntry();
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}
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if (!"false".equals(minified)) {
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os.putNextEntry(new JarEntry(minified));
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Writer w = new OutputStreamWriter(os, "UTF-8");
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configureMain(loader).
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obfuscation(ObfuscationLevel.FULL).
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generate(w);
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w.flush();
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os.closeEntry();
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}
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if (aotDeps != null) {
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for (Artifact a : prj.getArtifacts()) {
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if (!matches(aotDeps, a)) {
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continue;
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}
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getLog().info("Generating bck2brwsr for " + a.getFile());
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Bck2Brwsr c = Bck2BrwsrJars.configureFrom(null, a.getFile(), loader);
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if (exports != null) {
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for (String e : exports) {
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c = c.addExported(e.replace('.', '/'));
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}
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}
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{
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os.putNextEntry(new JarEntry(artifactName(a, true)));
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Writer w = new OutputStreamWriter(os, "UTF-8");
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c.
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obfuscation(ObfuscationLevel.NONE).
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generate(w);
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w.flush();
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os.closeEntry();
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}
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{
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os.putNextEntry(new JarEntry(artifactName(a, false)));
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Writer w = new OutputStreamWriter(os, "UTF-8");
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c.
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obfuscation(ObfuscationLevel.FULL).
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generate(w);
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w.flush();
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os.closeEntry();
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}
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}
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}
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os.close();
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projectHelper.attachArtifact(prj, "jar", "bck2brwsr", aotJar);
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} catch (IOException ex) {
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throw new MojoFailureException("Cannot generate script for " + mainJar, ex);
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}
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}
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private Bck2Brwsr configureMain(URLClassLoader loader) throws IOException {
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Bck2Brwsr c = Bck2BrwsrJars.configureFrom(null, mainJar, loader);
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if (exports != null) {
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for (String e : exports) {
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c = c.addExported(e.replace('.', '/'));
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}
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}
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return c;
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}
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private static String artifactName(Artifact a, boolean debug) {
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return a.getGroupId() + "-" + a.getArtifactId() + (debug ? "-debug.js" : "-min.js");
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}
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private static URLClassLoader buildClassLoader(File root, Collection<Artifact> deps) throws MalformedURLException {
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List<URL> arr = new ArrayList<URL>();
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if (root != null) {
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arr.add(root.toURI().toURL());
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}
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for (Artifact a : deps) {
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if (a.getFile() != null) {
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arr.add(a.getFile().toURI().toURL());
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}
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}
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return new URLClassLoader(arr.toArray(new URL[0]), Java2JavaScript.class.getClassLoader());
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}
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private static boolean matches(String[] aotDeps, Artifact a) {
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for (String d : aotDeps) {
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String[] parts = d.split(":");
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for (int i = 0; i < parts.length; i++) {
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if ("*".equals(parts[i])) {
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parts[i] = null;
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}
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}
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if (parts[0] != null && !parts[0].equals(a.getGroupId())) {
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continue;
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}
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if (parts[1] != null && !parts[1].equals(a.getArtifactId())) {
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continue;
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}
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if (parts.length > 2 && parts[2] != null && !parts[2].equals(a.getClassifier())) {
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continue;
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}
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return true;
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}
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return false;
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}
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}
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