net.myrrix.common

Class PartitionsUtils

java.lang.Object

net.myrrix.common.PartitionsUtils

public final class PartitionsUtils
extends Object

Utility methods for dealing with partitions in distributed mode.

Author:

Sean Owen

Method Summary

Methods

Modifier and Type	Method and Description
static List<List<org.apache.mahout.common.Pair<String,Integer>>>	getDefaultLocalPartition(int port)
static List<List<org.apache.mahout.common.Pair<String,Integer>>>	parseAllPartitions(CharSequence value)
static List<List<org.apache.mahout.common.Pair<String,Integer>>>	parsePartitionsFromStatus(URL url)

Methods inherited from class java.lang.Object

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

Method Detail

parseAllPartitions

public static List<List<org.apache.mahout.common.Pair<String,Integer>>> parseAllPartitions(CharSequence value)

Parameters:

value - describes all partitions, when partitioning across Serving Layers by user. Each partition may have multiple replicas. Serving Layers are specified as "host:port". Replicas are specified as many Serving Layers, separated by commas, like "rep1:port1,rep2:port2,...". Finally, partitions are specified as multiple replicas separated by semicolon, like "part1rep1:port11,part1rep2:port12;part2rep1:port21,part2rep2:port22;...". Example: "foo:80,foo2:8080;bar:8080;baz2:80,baz3:80"

Returns:

List of partitions, where each partition is a List of replicas, where each replica is a host-port pair, as String and Integer

getDefaultLocalPartition

public static List<List<org.apache.mahout.common.Pair<String,Integer>>> getDefaultLocalPartition(int port)

Parameters:

port - port the instance is configured to run on

Returns:

a simple structure representing one partition, one replica: the local host and configured instance port

parsePartitionsFromStatus

public static List<List<org.apache.mahout.common.Pair<String,Integer>>> parsePartitionsFromStatus(URL url)
                                                                                           throws IOException

Throws:

IOException