Example usage for org.apache.hadoop.registry.client.binding RegistryPathUtils join

Introduction

In this page you can find the example usage for org.apache.hadoop.registry.client.binding RegistryPathUtils join.

Prototype

public static String join(String base, String path) 

Source Link

Document

Join two paths, guaranteeing that there will not be exactly one separator between the two, and exactly one at the front of the path.

Usage

From source file:com.alibaba.jstorm.yarn.registry.YarnRegistryViewForProviders.java

License:Apache License

/**
 * Get the absolute path to where the service has registered itself.
 * This includes the base registry path//from   w  w w  . j a  v a 2s.c  o m
 * Null until the service is registered
 * @return the service registration path.
 */
public String getAbsoluteSelfRegistrationPath() {
    if (selfRegistrationPath == null) {
        return null;
    }
    String root = registryOperations.getConfig().getTrimmed(RegistryConstants.KEY_REGISTRY_ZK_ROOT,
            RegistryConstants.DEFAULT_ZK_REGISTRY_ROOT);
    return RegistryPathUtils.join(root, selfRegistrationPath);
}

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From source file:org.apache.slider.client.ClientRegistryBinder.java

License:Apache License

/**
 * Buld the user path -switches to the system path if the user is "".
 * It also cross-converts the username to ascii via punycode
 * @param username username or ""//  ww w.  j a  v a 2  s  . c  om
 * @return the path to the user
 */
public static String homePathForUser(String username) {
    Preconditions.checkArgument(username != null, "null user");

    // catch recursion
    if (username.startsWith(RegistryConstants.PATH_USERS)) {
        return username;
    }

    if (username.isEmpty()) {
        return RegistryConstants.PATH_SYSTEM_SERVICES;
    }

    // convert username to registry name
    String convertedName = convertUsername(username);

    return RegistryPathUtils.join(RegistryConstants.PATH_USERS, encodeForRegistry(convertedName));
}

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From source file:org.apache.slider.client.ClientRegistryBinder.java

License:Apache License

/**
 * Qualify a user.//www  .  j  ava 2 s  .  c o m
 * <ol>
 *   <li> <code>"~"</code> maps to user home path home</li>
 *   <li> <code>"~user"</code> maps to <code>/users/$user</code></li>
 *   <li> <code>"/"</code> maps to <code>/services/</code></li>
 * </ol>
 * @param user the username
 * @return the base path
 */
public static String qualifyUser(String user) {
    // qualify the user
    String t = user.trim();
    if (t.startsWith("/")) {
        // already resolved
        return t;
    } else if (t.equals("~")) {
        // self
        return currentUsernameUnencoded();
    } else if (t.startsWith("~")) {
        // another user
        // convert username to registry name
        String convertedName = convertUsername(t.substring(1));

        return RegistryPathUtils.join(RegistryConstants.PATH_USERS, encodeForRegistry(convertedName));
    } else {
        return "/" + t;
    }
}

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