Examples with MavenDependencyCollector net.sf.mmm.code.impl.java.source.maven.MavenDependencyCollector used on opensource projects

Example 1 with MavenDependencyCollector

use of net.sf.mmm.code.impl.java.source.maven.MavenDependencyCollector in project cobigen by devonfw.

the class JavaParserUtil method getJavaContext.

/**
 * Tries to get the Java context by creating a new class loader of the input project that is able to load the input
 * file. We need this in order to perform reflection on the templates.
 *
 * @param inputFile input file the user wants to generate code from
 * @param inputProject input project where the input file is located. We need this in order to build the classpath of
 *        the input file
 * @return the Java context created from the input project
 */
public static JavaContext getJavaContext(Path inputFile, Path inputProject) {
    String fqn = null;
    MavenUtil.resolveDependencies(inputProject);
    try {
        MavenDependencyCollector dependencyCollector = new MavenDependencyCollector(new MavenBridgeImpl(MavenUtil.determineMavenRepositoryPath().toFile()), false, true, null);
        JavaContext context = JavaSourceProviderUsingMaven.createFromLocalMavenProject(inputProject.toFile(), dependencyCollector);
        LOG.debug("Checking dependencies to exist.");
        if (dependencyCollector.asClassLoader() instanceof URLClassLoader) {
            for (URL url : dependencyCollector.asUrls()) {
                try {
                    if (!Files.exists(Paths.get(url.toURI()))) {
                        LOG.info("Found at least one maven dependency not to exist ({}).", url);
                        MavenUtil.resolveDependencies(inputProject);
                        // rerun collection
                        context = JavaSourceProviderUsingMaven.createFromLocalMavenProject(inputProject.toFile(), true);
                        break;
                    }
                } catch (URISyntaxException e) {
                    LOG.warn("Unable to check {} for existence", url, (LOG.isDebugEnabled() ? e : null));
                }
            }
            LOG.info("All dependencies exist on file system.");
        } else {
            LOG.debug("m-m-m classloader is instance of {}. Unable to check dependencies", dependencyCollector.asClassLoader().getClass());
        }
        fqn = getFQN(inputFile);
        context.getClassLoader().loadClass(fqn);
        return context;
    } catch (NoClassDefFoundError | ClassNotFoundException e) {
        throw new CobiGenRuntimeException("Compiled class " + fqn + " has not been found. Most probably you need to build project " + inputProject.toString() + ".", e);
    } catch (Exception e) {
        throw new CobiGenRuntimeException("Transitive dependencies have not been found on your m2 repository (Maven). Please run 'mvn package' " + "in your input project in order to download all the needed dependencies.", e);
    }
}