Examples with Engine fmpp.Engine used on opensource projects

Example 1 with Engine

use of fmpp.Engine in project drill by apache.

the class FMPPMojo method execute.

@Override
public void execute() throws MojoExecutionException, MojoFailureException {
    if (project == null) {
        throw new MojoExecutionException("This plugin can only be used inside a project.");
    }
    String outputPath = output.getAbsolutePath();
    if ((!output.exists() && !output.mkdirs()) || !output.isDirectory()) {
        throw new MojoFailureException("can not write to output dir: " + outputPath);
    }
    String templatesPath = templates.getAbsolutePath();
    if (!templates.exists() || !templates.isDirectory()) {
        throw new MojoFailureException("templates not found in dir: " + outputPath);
    }
    // add the output directory path to the project source directories
    switch(scope) {
        case "compile":
            project.addCompileSourceRoot(outputPath);
            break;
        case "test":
            project.addTestCompileSourceRoot(outputPath);
            break;
        default:
            throw new MojoFailureException("scope must be compile or test");
    }
    final Stopwatch sw = Stopwatch.createStarted();
    try {
        getLog().info(format("Freemarker generation:\n scope: %s,\n config: %s,\n templates: %s", scope, config.getAbsolutePath(), templatesPath));
        final File tmp = Files.createTempDirectory("freemarker-tmp").toFile();
        String tmpPath = tmp.getAbsolutePath();
        final String tmpPathNormalized = tmpPath.endsWith(File.separator) ? tmpPath : tmpPath + File.separator;
        Settings settings = new Settings(new File("."));
        settings.set(Settings.NAME_SOURCE_ROOT, templatesPath);
        settings.set(Settings.NAME_OUTPUT_ROOT, tmp.getAbsolutePath());
        settings.load(config);
        settings.addProgressListener(new TerseConsoleProgressListener());
        settings.addProgressListener(new ProgressListener() {

            @Override
            public void notifyProgressEvent(Engine engine, int event, File src, int pMode, Throwable error, Object param) throws Exception {
                if (event == EVENT_END_PROCESSING_SESSION) {
                    getLog().info(format("Freemarker generation took %dms", sw.elapsed(TimeUnit.MILLISECONDS)));
                    sw.reset();
                    Report report = moveIfChanged(tmp, tmpPathNormalized);
                    if (!tmp.delete()) {
                        throw new MojoFailureException(format("can not delete %s", tmp));
                    }
                    getLog().info(format("Incremental output update took %dms", sw.elapsed(TimeUnit.MILLISECONDS)));
                    getLog().info(format("new: %d", report.newFiles));
                    getLog().info(format("changed: %d", report.changedFiles));
                    getLog().info(format("unchanged: %d", report.unchangedFiles));
                }
            }
        });
        if (addMavenDataLoader) {
            getLog().info("Adding maven data loader");
            settings.setEngineAttribute(MavenDataLoader.MAVEN_DATA_ATTRIBUTE, new MavenData(project));
            settings.add(Settings.NAME_DATA, format("maven: %s()", MavenDataLoader.class.getName()));
        }
        settings.execute();
    } catch (Exception e) {
        throw new MojoFailureException(MiscUtil.causeMessages(e), e);
    }
}