org.scion.jpan

Interface PathPolicy

All Known Implementing Classes:

PathPolicy.First, PathPolicy.IsdAllow, PathPolicy.IsdDisallow, PathPolicy.MaxBandwith, PathPolicy.MinHopCount, PathPolicy.MinLatency, PplExtPolicy, PplPathFilter, PplPolicy

public interface PathPolicy

Path policy interface.

Contract:
- The list of paths returned by filter may be ordered by preference (most preferred first).
- The filter method must not modify the input list of paths (TBD).
- The filter method must not keep a reference to the returned list. The returned list may be modified by the caller.
- The filter method must not return a list containing paths with null metadata.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	PathPolicy.First
static class	PathPolicy.IsdAllow
static class	PathPolicy.IsdDisallow
static class	PathPolicy.MaxBandwith
static class	PathPolicy.MinHopCount
static class	PathPolicy.MinLatency

Field Summary

Fields

Modifier and Type	Field and Description
static PathPolicy	DEFAULT
static PathPolicy	FIRST
static PathPolicy	MAX_BANDWIDTH
static PathPolicy	MIN_HOPS
static PathPolicy	MIN_LATENCY

Method Summary

Modifier and Type	Method and Description
List<Path>	filter(List<Path> paths)

Field Detail

FIRST

static final PathPolicy FIRST

MAX_BANDWIDTH

static final PathPolicy MAX_BANDWIDTH

MIN_LATENCY

static final PathPolicy MIN_LATENCY

MIN_HOPS

static final PathPolicy MIN_HOPS

DEFAULT

static final PathPolicy DEFAULT

Method Detail

filter

List<Path> filter(List<Path> paths)

Parameters:

paths - A list of candidate paths

Returns:

A list of path ordered by preference (most preferec first).

Throws:

NoSuchElementException - if no matching path could be found.