| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.pcep.controller; |
| |
| import org.onosproject.incubator.net.tunnel.Tunnel.State; |
| |
| /** |
| * Representation of the PCEP LSP state. |
| */ |
| public enum PcepLspStatus { |
| |
| /** |
| * Signifies that the LSP is not active. |
| */ |
| DOWN, |
| |
| /** |
| * Signifies that the LSP is signalled. |
| */ |
| UP, |
| |
| /** |
| * Signifies that the LSP is up and carrying traffic. |
| */ |
| ACTIVE, |
| |
| /** |
| * Signifies that the LSP is being torn down, resources are being released. |
| */ |
| GOING_DOWN, |
| |
| /** |
| * Signifies that the LSP is being signalled. |
| */ |
| GOING_UP; |
| |
| /** |
| * Returns the applicable PCEP LSP status corresponding to ONOS tunnel state. |
| * |
| * @param tunnelState ONOS tunnel state |
| * @return LSP status as per protocol |
| */ |
| public static PcepLspStatus getLspStatusFromTunnelStatus(State tunnelState) { |
| |
| switch (tunnelState) { |
| |
| case INIT: |
| return PcepLspStatus.DOWN; |
| |
| case ESTABLISHED: |
| return PcepLspStatus.GOING_UP; |
| |
| case ACTIVE: |
| return PcepLspStatus.UP; |
| |
| case FAILED: // fall through |
| case INACTIVE: // LSP is administratively down. |
| default: |
| return PcepLspStatus.DOWN; |
| } |
| } |
| |
| /** |
| * Returns the applicable ONOS tunnel state corresponding to PCEP LSP status. |
| * |
| * @param lspState PCEP LSP status |
| * @return tunnel state |
| */ |
| public static State getTunnelStatusFromLspStatus(PcepLspStatus lspState) { |
| |
| switch (lspState) { |
| |
| case DOWN: |
| return State.FAILED; |
| |
| case UP: // fall through |
| case ACTIVE: |
| return State.ACTIVE; |
| |
| case GOING_DOWN: |
| return State.FAILED; |
| |
| case GOING_UP: |
| return State.ESTABLISHED; |
| |
| default: |
| return State.FAILED; |
| } |
| } |
| } |