osgi - 如何使用 PAX-CDI 访问 KARAF/etc 中的 cfg 文件

Question

如何使用 PAX-CDI 访问 KARAF/etc 中的 cfg 文件

例如：

KARAF_HOME\etc\import.cfg

如何使用 @OsgiServiceProvider 使用它

Answer 1

您可以通过 DOSGI 将属性加载并放置在 Util 中，然后您可以在 Pax-CDI 代码中访问

DOSGI：

@Component(immediate = true, configurationPolicy = ConfigurationPolicy.REQUIRE, configurationPid = "ca.esc.pbm.frontend.security")
public class SecurityConfig{

public static final String TOKEN_SIG_SECRET = "signatureSecret";

@Activate
    private void activate(BundleContext bundleContext, Map<String, ?> properties) throws Exception {

        logger.info("Security Config Activated");

        Properties props = new Properties();

        if (properties.isEmpty()) {
            throw new ComponentException("Config Properties is Empty ");
        }

        logger.info("Property loaded " + properties.size());

        props.putAll(properties);

        PropertiesUtil.setProperty(props);

        System.out.println(properties);

    }
}

属性实用程序

/**
 * Property Util to load the *.properties form class path
 * 
 * @version 1.0
 */
public class PropertiesUtil {

private static Map<String, String> propertiesMap;

/**
 * Get the property value for the given key from the loaded property
 * 
 * @param name
 * @return String
 */
public static String getProperty(String name) {
    return (String) propertiesMap.get(name);
}

/**
 * Set the property value for the given key from the loaded property
 * 
 * @param props
 */
public static void setProperty(Properties props) {
    Map<String, String> propertiesMapLocal = new HashMap<String, String>();

    for (Object key : props.keySet()) {
        String keyStr = key.toString();
        propertiesMapLocal.put(keyStr, props.getProperty(keyStr));
    }

    propertiesMap = propertiesMapLocal;
}

}

pax-cdi

@ApplicationScoped
@Named
public class DefaultApiImpl implements DefaultApi {

@Override
    public Response login(String userAgent, String username, String password, UriInfo uriInfo) {

PropertiesUtil.getProperty(SecurityConfig.TOKEN_SIG_SECRET);

}

配置文件

你可以让 karaf_home/etc/ca.esc.pbm.frontend.security.cfg 持有一个值 signatureSecret=my-secret