Example usage for org.springframework.context.annotation ClassPathScanningCandidateComponentProvider ClassPathScanningCandidateComponentProvider

List of usage examples for org.springframework.context.annotation ClassPathScanningCandidateComponentProvider ClassPathScanningCandidateComponentProvider

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Introduction

In this page you can find the example usage for org.springframework.context.annotation ClassPathScanningCandidateComponentProvider ClassPathScanningCandidateComponentProvider.

Prototype

public ClassPathScanningCandidateComponentProvider(boolean useDefaultFilters)

Source Link

Document

Create a ClassPathScanningCandidateComponentProvider with a StandardEnvironment .

Usage

From source file:ubic.gemma.core.apps.GemmaCLI.java

public static void main(String[] args) {

    /*/*from  ww w  . j  av a 2 s .c o  m*/
     * Build a map from command names to classes.
     */
    Map<CommandGroup, Map<String, String>> commands = new HashMap<>();
    Map<String, Class<? extends AbstractCLI>> commandClasses = new HashMap<>();
    try {

        final ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(
                false);
        provider.addIncludeFilter(new RegexPatternTypeFilter(Pattern.compile(".*")));

        // searching entire hierarchy is 1) slow and 2) generates annoying logging from static initialization code.
        final Set<BeanDefinition> classes = provider.findCandidateComponents("ubic.gemma.core.apps");
        classes.addAll(provider.findCandidateComponents("ubic.gemma.core.loader.association.phenotype"));

        for (BeanDefinition bean : classes) {
            try {
                @SuppressWarnings("unchecked")
                Class<? extends AbstractCLI> aClazz = (Class<? extends AbstractCLI>) Class
                        .forName(bean.getBeanClassName());

                Object cliInstance = aClazz.newInstance();

                Method method = aClazz.getMethod("getCommandName");
                String commandName = (String) method.invoke(cliInstance, new Object[] {});
                if (commandName == null || StringUtils.isBlank(commandName)) {
                    // keep null to avoid printing some commands...
                    continue;
                }

                Method method2 = aClazz.getMethod("getShortDesc");
                String desc = (String) method2.invoke(cliInstance, new Object[] {});

                Method method3 = aClazz.getMethod("getCommandGroup");
                CommandGroup g = (CommandGroup) method3.invoke(cliInstance, new Object[] {});

                if (!commands.containsKey(g)) {
                    commands.put(g, new TreeMap<String, String>());
                }

                commands.get(g).put(commandName, desc + " (" + bean.getBeanClassName() + ")");

                commandClasses.put(commandName, aClazz);
            } catch (Exception e) {
                // OK, this can happen if we hit a non useful class.
            }
        }
    } catch (Exception e1) {
        System.err.println("ERROR! Report to developers: " + e1.getMessage());
        System.exit(1);
    }

    if (args.length == 0 || args[0].equalsIgnoreCase("--help") || args[0].equalsIgnoreCase("-help")
            || args[0].equalsIgnoreCase("help")) {
        GemmaCLI.printHelp(commands);
    } else {
        LinkedList<String> f = new LinkedList<>(Arrays.asList(args));
        String commandRequested = f.remove(0);
        Object[] argsToPass = f.toArray(new String[] {});

        if (!commandClasses.containsKey(commandRequested)) {
            System.err.println("Unrecognized command: " + commandRequested);
            GemmaCLI.printHelp(commands);
            System.err.println("Unrecognized command: " + commandRequested);
            System.exit(1);
        } else {
            try {
                Class<?> c = commandClasses.get(commandRequested);
                Method method = c.getMethod("main", String[].class);
                System.err.println("========= Gemma CLI invocation of " + commandRequested + " ============");
                System.err.println("Options: " + GemmaCLI.getOptStringForLogging(argsToPass));
                //noinspection JavaReflectionInvocation // It works
                method.invoke(null, (Object) argsToPass);
            } catch (Exception e) {
                System.err.println("Gemma CLI error: " + e.getClass().getName() + " - " + e.getMessage());
                System.err.println(ExceptionUtils.getStackTrace(e));
                throw new RuntimeException(e);
            } finally {
                System.err.println("========= Gemma CLI run of " + commandRequested + " complete ============");
                System.exit(0);
            }
        }
    }
}