org.apache.hadoop.tools.rumen
Class LoggedLocation

java.lang.Object
  org.apache.hadoop.tools.rumen.LoggedLocation

All Implemented Interfaces:

DeepCompare

public class LoggedLocation
extends Object
implements DeepCompare

A LoggedLocation is a representation of a point in an hierarchical network, represented as a series of membership names, broadest first. For example, if your network has hosts grouped into racks, then in onecluster you might have a node node1 on rack rack1. This would be represented with a ArrayList of two layers, with two String s being "rack1" and "node1". The details of this class are set up to meet the requirements of the Jackson JSON parser/generator. All of the public methods are simply accessors for the instance variables we want to write out in the JSON files.

Constructor Summary

LoggedLocation()

Method Summary

void	deepCompare(DeepCompare comparand, TreePath loc)
List<NodeName>	getLayers()
void	setUnknownAttribute(String attributeName, Object ignored)

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggedLocation

public LoggedLocation()

Method Detail

getLayers

public List<NodeName> getLayers()

setUnknownAttribute

public void setUnknownAttribute(String attributeName,
                                Object ignored)

deepCompare

public void deepCompare(DeepCompare comparand,
                        TreePath loc)
                 throws DeepInequalityException

Specified by:

deepCompare in interface DeepCompare

Parameters:

comparand - the other comparand that's being compared to me

loc - the path that got to me. In the root, myLocation is null. To process the scalar foo field of the root we will make a recursive call with a TreePath whose fieldName is "bar" and whose index is -1 and whose parent is null. To process the plural bar field of the root we will make a recursive call with a TreePath whose fieldName is "foo" and whose index is -1 and whose parent is also null.

Throws:

DeepInequalityException