Package org.apache.hadoop.fs.viewfs

Class ConfigUtil

java.lang.Object
org.apache.hadoop.fs.viewfs.ConfigUtil
public class ConfigUtil extends Object
Utilities for config variables of the viewFs See ViewFs

  • Constructor Details

    • ConfigUtil

      public ConfigUtil()

  • Method Details

    • getConfigViewFsPrefix

      public static String getConfigViewFsPrefix(String mountTableName)
      Get the config variable prefix for the specified mount table
      Parameters:
      mountTableName - - the name of the mount table
      Returns:
      the config variable prefix for the specified mount table

    • getConfigViewFsPrefix

      public static String getConfigViewFsPrefix()
      Get the config variable prefix for the default mount table
      Returns:
      the config variable prefix for the default mount table

    • addLink

      public static void addLink(Configuration conf, String mountTableName, String src, URI target)
      Add a link to the config for the specified mount table
      Parameters:
      conf - - add the link to this conf
      mountTableName - mountTable.
      src - - the src path name
      target - - the target URI link

    • addLink

      public static void addLink(Configuration conf, String src, URI target)
      Add a link to the config for the default mount table
      Parameters:
      conf - - add the link to this conf
      src - - the src path name
      target - - the target URI link

    • addLinkMergeSlash

      public static void addLinkMergeSlash(Configuration conf, String mountTableName, URI target)
      Add a LinkMergeSlash to the config for the specified mount table.
      Parameters:
      conf - configuration.
      mountTableName - mountTable.
      target - target.

    • addLinkMergeSlash

      public static void addLinkMergeSlash(Configuration conf, URI target)
      Add a LinkMergeSlash to the config for the default mount table.
      Parameters:
      conf - configuration.
      target - targets.

    • addLinkFallback

      public static void addLinkFallback(Configuration conf, String mountTableName, URI target)
      Add a LinkFallback to the config for the specified mount table.
      Parameters:
      conf - configuration.
      mountTableName - mountTable.
      target - targets.

    • addLinkFallback

      public static void addLinkFallback(Configuration conf, URI target)
      Add a LinkFallback to the config for the default mount table.
      Parameters:
      conf - configuration.
      target - targets.

    • addLinkMerge

      public static void addLinkMerge(Configuration conf, String mountTableName, URI[] targets)
      Add a LinkMerge to the config for the specified mount table.
      Parameters:
      conf - configuration.
      mountTableName - mountTable.
      targets - targets.

    • addLinkMerge

      public static void addLinkMerge(Configuration conf, URI[] targets)
      Add a LinkMerge to the config for the default mount table.
      Parameters:
      conf - configuration.
      targets - targets array.

    • addLinkNfly

      public static void addLinkNfly(Configuration conf, String mountTableName, String src, String settings, String targets)
      Add nfly link to configuration for the given mount table.
      Parameters:
      conf - configuration.
      mountTableName - mount table.
      src - src.
      settings - settings.
      targets - targets.

    • addLinkNfly

      public static void addLinkNfly(Configuration conf, String mountTableName, String src, String settings, URI... targets)
      Add nfly link to configuration for the given mount table.
      Parameters:
      conf - configuration.
      mountTableName - mount table.
      src - src.
      settings - settings.
      targets - targets.

    • addLinkNfly

      public static void addLinkNfly(Configuration conf, String src, URI... targets)

    • addLinkRegex

      public static void addLinkRegex(Configuration conf, String mountTableName, String srcRegex, String targetStr, String interceptorSettings)
      Add a LinkRegex to the config for the specified mount table.
      Parameters:
      conf - - get mountable config from this conf
      mountTableName - - the mountable name of the regex config item
      srcRegex - - the src path regex expression that applies to this config
      targetStr - - the string of target path
      interceptorSettings - - the serialized interceptor string to be applied while resolving the mapping

    • setHomeDirConf

      public static void setHomeDirConf(Configuration conf, String homedir)
      Add config variable for homedir for default mount table
      Parameters:
      conf - - add to this conf
      homedir - - the home dir path starting with slash

    • setHomeDirConf

      public static void setHomeDirConf(Configuration conf, String mountTableName, String homedir)
      Add config variable for homedir the specified mount table
      Parameters:
      conf - - add to this conf
      homedir - - the home dir path starting with slash
      mountTableName - - the mount table.

    • getHomeDirValue

      public static String getHomeDirValue(Configuration conf)
      Get the value of the home dir conf value for default mount table
      Parameters:
      conf - - from this conf
      Returns:
      home dir value, null if variable is not in conf

    • getHomeDirValue

      public static String getHomeDirValue(Configuration conf, String mountTableName)
      Get the value of the home dir conf value for specified mount table
      Parameters:
      conf - - from this conf
      mountTableName - - the mount table
      Returns:
      home dir value, null if variable is not in conf

    • getDefaultMountTableName

      public static String getDefaultMountTableName(Configuration conf)
      Get the name of the default mount table to use. If Constants.CONFIG_VIEWFS_DEFAULT_MOUNT_TABLE_NAME_KEY is specified, it's value is returned. Otherwise, Constants.CONFIG_VIEWFS_DEFAULT_MOUNT_TABLE is returned.
      Parameters:
      conf - Configuration to use.
      Returns:
      the name of the default mount table to use.

    • isNestedMountPointSupported

      public static boolean isNestedMountPointSupported(Configuration conf)
      Check the bool config whether nested mount point is supported. Default: true
      Parameters:
      conf - - from this conf
      Returns:
      whether nested mount point is supported

    • setIsNestedMountPointSupported

      public static void setIsNestedMountPointSupported(Configuration conf, boolean isNestedMountPointSupported)
      Set the bool value isNestedMountPointSupported in config.
      Parameters:
      conf - - from this conf
      isNestedMountPointSupported - - whether nested mount point is supported