Examples with ConfigValue io.helidon.config.ConfigValue used on opensource projects

Example 1 with ConfigValue

use of io.helidon.config.ConfigValue in project helidon by oracle.

the class ClientMain method main.

/**
 * Executes WebClient examples.
 *
 * If no argument provided it will take server port from configuration server.port.
 *
 * User can override port from configuration by main method parameter with the specific port.
 *
 * @param args main method
 */
public static void main(String[] args) {
    Config config = Config.create();
    String url;
    if (args.length == 0) {
        ConfigValue<Integer> port = config.get("server.port").asInt();
        if (!port.isPresent() || port.get() == -1) {
            throw new IllegalStateException("Unknown port! Please specify port as a main method parameter " + "or directly to config server.port");
        }
        url = "http://localhost:" + port.get() + "/greet";
    } else {
        url = "http://localhost:" + Integer.parseInt(args[0]) + "/greet";
    }
    WebClient webClient = WebClient.builder().baseUri(url).config(config.get("client")).addMediaSupport(JsonpSupport.create()).build();
    performPutMethod(webClient).flatMapSingle(it -> performGetMethod(webClient)).flatMapSingle(it -> followRedirects(webClient)).flatMapSingle(it -> getResponseAsAnJsonObject(webClient)).flatMapSingle(it -> saveResponseToFile(webClient)).flatMapSingle(it -> clientMetricsExample(url, config)).await();
}

Example 2 with ConfigValue

use of io.helidon.config.ConfigValue in project helidon by oracle.

the class WithSourcesExample method main.

/**
 * Executes the example.
 *
 * @param args arguments
 */
public static void main(String... args) {
    /*
           Creates a config source composed of following sources:
           - conf/dev.yaml - developer specific configuration, should not be placed in VCS;
           - conf/config.yaml - deployment dependent configuration, for example prod, stage, etc;
           - default.yaml - application default values, loaded form classpath;
           with a filter which convert values with keys ending with "level" to upper case
         */
    Config config = Config.builder(file("conf/dev.yaml").optional(), file("conf/config.yaml").optional(), classpath("default.yaml")).addFilter((key, stringValue) -> key.name().equals("level") ? stringValue.toUpperCase() : stringValue).build();
    // Environment type, from dev.yaml:
    ConfigValue<String> env = config.get("meta.env").asString();
    env.ifPresent(e -> System.out.println("Environment: " + e));
    assert env.get().equals("DEV");
    // Default value (default.yaml): Config Sources Example
    String appName = config.get("app.name").asString().get();
    System.out.println("Name: " + appName);
    assert appName.equals("Config Sources Example");
    // Page size, from config.yaml: 10
    int pageSize = config.get("app.page-size").asInt().get();
    System.out.println("Page size: " + pageSize);
    assert pageSize == 10;
    // Applied filter (uppercase logging level), from dev.yaml: finest -> FINEST
    String level = config.get("component.audit.logging.level").asString().get();
    System.out.println("Level: " + level);
    assert level.equals("FINE");
}

Example 3 with ConfigValue

use of io.helidon.config.ConfigValue in project helidon by oracle.

the class WebSecurity method registerRouting.

private void registerRouting(Routing.Rules routing) {
    Config wsConfig = config.get("web-server");
    SecurityHandler defaults = SecurityHandler.create(wsConfig.get("defaults"), defaultHandler);
    wsConfig.get("paths").asNodeList().ifPresent(configs -> {
        for (Config pathConfig : configs) {
            List<Http.RequestMethod> methods = pathConfig.get("methods").asNodeList().orElse(List.of()).stream().map(Config::asString).map(ConfigValue::get).map(Http.RequestMethod::create).collect(Collectors.toList());
            String path = pathConfig.get("path").asString().orElseThrow(() -> new SecurityException(pathConfig.key() + " must contain path key with a path to " + "register to web server"));
            if (methods.isEmpty()) {
                routing.any(path, SecurityHandler.create(pathConfig, defaults));
            } else {
                routing.anyOf(methods, path, SecurityHandler.create(pathConfig, defaults));
            }
        }
    });
}

Example 4 with ConfigValue

use of io.helidon.config.ConfigValue in project helidon by oracle.

the class LoadSourcesExample method main.

/**
 * Executes the example.
 *
 * @param args arguments
 */
public static void main(String... args) {
    /*
           Creates a configuration from list of config sources loaded from meta sources:
           - conf/meta-config.yaml - - deployment dependent meta-config file, loaded from file on filesystem;
           - meta-config.yaml - application default meta-config file, loaded form classpath;
           with a filter which convert values with keys ending with "level" to upper case
         */
    Config metaConfig = Config.create(file("conf/meta-config.yaml").optional(), classpath("meta-config.yaml"));
    Config config = Config.builder().config(metaConfig).addFilter((key, stringValue) -> key.name().equals("level") ? stringValue.toUpperCase() : stringValue).build();
    // Optional environment type, from dev.yaml:
    ConfigValue<String> env = config.get("meta.env").asString();
    env.ifPresent(e -> System.out.println("Environment: " + e));
    assert env.get().equals("DEV");
    // Default value (default.yaml): Config Sources Example
    String appName = config.get("app.name").asString().get();
    System.out.println("Name: " + appName);
    assert appName.equals("Config Sources Example");
    // Page size, from config.yaml: 10
    int pageSize = config.get("app.page-size").asInt().get();
    System.out.println("Page size: " + pageSize);
    assert pageSize == 10;
    // Applied filter (uppercase logging level), from dev.yaml: finest -> FINEST
    String level = config.get("component.audit.logging.level").asString().get();
    System.out.println("Level: " + level);
    assert level.equals("FINE");
}