Examples with CombinedExceptionHandler org.openksavi.sponge.core.engine.CombinedExceptionHandler used on opensource projects

Example 1 with CombinedExceptionHandler

use of org.openksavi.sponge.core.engine.CombinedExceptionHandler in project sponge by softelnet.

the class StandaloneEngineBuilder method build.

/**
 * Returns a new StandaloneEngine or {@code null} if help or version option is specified so the application should exit.
 */
@Override
public StandaloneSpongeEngine build() {
    try {
        if (commandLineArgs == null) {
            return super.build();
        }
        CommandLineParser parser = new DefaultParser();
        CommandLine commandLine = parser.parse(options, commandLineArgs);
        if (commandLine.hasOption(OPTION_HELP)) {
            printHelp();
            return null;
        }
        if (commandLine.hasOption(OPTION_VERSION)) {
            System.out.println(getDescription());
            return null;
        }
        if (commandLine.hasOption(OPTION_CONFIG)) {
            config(commandLine.getOptionValue(OPTION_CONFIG));
        }
        if (Stream.of(commandLine.getOptions()).filter(option -> option.getOpt().equals(OPTION_CONFIG)).count() > 1) {
            throw new StandaloneInitializationException("Only one Sponge XML configuration file may be provided.");
        }
        Stream.of(commandLine.getOptions()).filter(option -> option.getOpt().equals(OPTION_KNOWLEDGE_BASE)).forEachOrdered(option -> {
            String value = option.getValue();
            if (value == null || StringUtils.isBlank(value)) {
                throw new StandaloneInitializationException("Empty knowledge base specification.");
            }
            String[] values = StringUtils.split(value, ARGUMENT_VALUE_SEPARATOR);
            String kbName = values.length == 2 ? values[0] : DEFAULT_KNOWLEDGE_BASE_NAME;
            String kbFilesString = values.length == 2 ? values[1] : values[0];
            if (StringUtils.isBlank(kbName)) {
                throw new StandaloneInitializationException("Empty knowledge base name.");
            }
            List<String> kbFiles = SpongeUtils.split(kbFilesString, KB_FILES_SEPARATOR);
            knowledgeBase(kbName, kbFiles.toArray(new String[kbFiles.size()]));
        });
        if (!commandLine.hasOption(OPTION_CONFIG) && !commandLine.hasOption(OPTION_KNOWLEDGE_BASE)) {
            throw new StandaloneInitializationException("An Sponge XML configuration file or a knowledge base file(s) should be provided.");
        }
        // Apply standard parameters.
        super.build();
        applyDefaultParameters();
        if (commandLine.hasOption(OPTION_INTERACTIVE)) {
            InteractiveMode interactiveMode = new DefaultInteractiveMode(engine, commandLine.getOptionValue(OPTION_INTERACTIVE), interactiveModeConsoleSupplier);
            ExceptionHandler interactiveExceptionHandler = new SystemErrExceptionHandler();
            interactiveMode.setExceptionHandler(interactiveExceptionHandler);
            engine.setInteractiveMode(interactiveMode);
            if (commandLine.hasOption(OPTION_PRINT_ALL_EXCEPTIONS)) {
                engine.setExceptionHandler(new CombinedExceptionHandler(interactiveExceptionHandler, new LoggingExceptionHandler()));
            } else {
                LoggingUtils.logToConsole(false);
            }
        } else {
            if (commandLine.hasOption(OPTION_PRINT_ALL_EXCEPTIONS)) {
                throw new StandaloneInitializationException("'" + OPTION_PRINT_ALL_EXCEPTIONS + "' option may be used only if '" + OPTION_INTERACTIVE + "' is also used.");
            }
        }
        StandaloneEngineListener standaloneListener = new StandaloneEngineListener(engine);
        List<String> springConfigurationFiles = Stream.of(commandLine.getOptions()).filter(option -> option.getOpt().equals(OPTION_SPRING)).map(option -> {
            String[] values = option.getValues();
            if (values == null || values.length == 0) {
                throw new StandaloneInitializationException("No Spring configuration file provided.");
            }
            return option.getValue(0);
        }).collect(Collectors.toList());
        if (!springConfigurationFiles.isEmpty()) {
            standaloneListener.setSpringConfigurations(springConfigurationFiles);
        }
        if (commandLine.hasOption(OPTION_CAMEL)) {
            standaloneListener.setCamel(true);
        }
        engine.addOnStartupListener(standaloneListener);
        engine.addOnShutdownListener(standaloneListener);
    } catch (ParseException e) {
        throw new StandaloneInitializationException(e.getMessage(), e);
    }
    return engine;
}