Package org.apache.hadoop.lib.util

Class ConfigurationUtils

java.lang.Object
org.apache.hadoop.lib.util.ConfigurationUtils
@Private public abstract class ConfigurationUtils extends Object
Configuration utilities.

  • Constructor Summary

    Constructors
    Constructor
    Description
    ConfigurationUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    copy(org.apache.hadoop.conf.Configuration source, org.apache.hadoop.conf.Configuration target)
    Copy configuration key/value pairs from one configuration to another if a property exists in the target, it gets replaced.
    static void
    injectDefaults(org.apache.hadoop.conf.Configuration source, org.apache.hadoop.conf.Configuration target)
    Injects configuration key/value pairs from one configuration to another if the key does not exist in the target configuration.
    static void
    load(org.apache.hadoop.conf.Configuration conf, InputStream is)
    Create a configuration from an InputStream.
    static org.apache.hadoop.conf.Configuration
    resolve(org.apache.hadoop.conf.Configuration conf)
    Returns a new ConfigurationUtils instance with all inline values resolved.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • ConfigurationUtils

      public ConfigurationUtils()

  • Method Details

    • copy

      public static void copy(org.apache.hadoop.conf.Configuration source, org.apache.hadoop.conf.Configuration target)
      Copy configuration key/value pairs from one configuration to another if a property exists in the target, it gets replaced.
      Parameters:
      source - source configuration.
      target - target configuration.

    • injectDefaults

      public static void injectDefaults(org.apache.hadoop.conf.Configuration source, org.apache.hadoop.conf.Configuration target)
      Injects configuration key/value pairs from one configuration to another if the key does not exist in the target configuration.
      Parameters:
      source - source configuration.
      target - target configuration.

    • resolve

      public static org.apache.hadoop.conf.Configuration resolve(org.apache.hadoop.conf.Configuration conf)
      Returns a new ConfigurationUtils instance with all inline values resolved.
      Returns:
      a new ConfigurationUtils instance with all inline values resolved.

    • load

      public static void load(org.apache.hadoop.conf.Configuration conf, InputStream is) throws IOException
      Create a configuration from an InputStream.

      ERROR canibalized from Configuration.loadResource().

      Parameters:
      is - inputstream to read the configuration from.
      Throws:
      IOException - thrown if the configuration could not be read.