Sean Condon | 0e89bda | 2017-03-21 14:23:19 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.cfm.web; |
| 17 | |
| 18 | import com.fasterxml.jackson.databind.JsonNode; |
| 19 | import com.fasterxml.jackson.databind.node.ObjectNode; |
| 20 | import org.onlab.packet.MacAddress; |
| 21 | import org.onosproject.codec.CodecContext; |
| 22 | import org.onosproject.codec.JsonCodec; |
| 23 | import org.onosproject.incubator.net.l2monitoring.cfm.DefaultMepLtCreate; |
| 24 | import org.onosproject.incubator.net.l2monitoring.cfm.MepLtCreate; |
| 25 | import org.onosproject.incubator.net.l2monitoring.cfm.identifier.MepId; |
| 26 | |
| 27 | import java.util.BitSet; |
| 28 | |
| 29 | import static com.google.common.base.Preconditions.checkNotNull; |
| 30 | |
| 31 | /** |
| 32 | * Encode and decode to/from JSON to MepLtCreate object. |
| 33 | */ |
| 34 | public class MepLtCreateCodec extends JsonCodec<MepLtCreate> { |
| 35 | |
| 36 | private static final String REMOTE_MEP_ID = "remoteMepId"; |
| 37 | private static final String REMOTE_MEP_MAC = "remoteMepMac"; |
| 38 | private static final String DEFAULT_TTL = "defaultTtl"; |
| 39 | private static final String TRANSMIT_LTM_FLAGS = "transmitLtmFlags"; |
| 40 | private static final String LINKTRACE = "linktrace"; |
| 41 | private static final String USE_FDB_ONLY = "use-fdb-only"; |
| 42 | |
| 43 | @Override |
| 44 | public ObjectNode encode(MepLtCreate mepLtCreate, CodecContext context) { |
| 45 | checkNotNull(mepLtCreate, "Mep Lt Create cannot be null"); |
| 46 | ObjectNode result = context.mapper().createObjectNode(); |
| 47 | |
| 48 | if (mepLtCreate.remoteMepId() != null) { |
| 49 | result.put(REMOTE_MEP_ID, mepLtCreate.remoteMepId().value()); |
| 50 | } else { |
| 51 | result.put(REMOTE_MEP_MAC, mepLtCreate.remoteMepAddress().toString()); |
| 52 | } |
| 53 | |
| 54 | if (mepLtCreate.defaultTtl() != null) { |
| 55 | result.put(DEFAULT_TTL, mepLtCreate.defaultTtl()); |
| 56 | } |
| 57 | if (mepLtCreate.transmitLtmFlags() != null) { |
| 58 | result.put(TRANSMIT_LTM_FLAGS, |
| 59 | mepLtCreate.transmitLtmFlags().get(0) ? USE_FDB_ONLY : ""); |
| 60 | } |
| 61 | |
| 62 | return result; |
| 63 | } |
| 64 | |
| 65 | |
| 66 | @Override |
| 67 | public MepLtCreate decode(ObjectNode json, CodecContext context) { |
| 68 | if (json == null || !json.isObject()) { |
| 69 | return null; |
| 70 | } |
| 71 | |
| 72 | JsonNode linktraceNode = json.get(LINKTRACE); |
| 73 | |
| 74 | JsonNode remoteMepIdNode = linktraceNode.get(REMOTE_MEP_ID); |
| 75 | JsonNode remoteMepMacNode = linktraceNode.get(REMOTE_MEP_MAC); |
| 76 | |
| 77 | MepLtCreate.MepLtCreateBuilder ltCreateBuilder = null; |
| 78 | if (remoteMepIdNode != null) { |
| 79 | MepId remoteMepId = MepId.valueOf((short) remoteMepIdNode.asInt()); |
| 80 | ltCreateBuilder = DefaultMepLtCreate.builder(remoteMepId); |
| 81 | } else if (remoteMepMacNode != null) { |
| 82 | MacAddress remoteMepMac = MacAddress.valueOf( |
| 83 | remoteMepMacNode.asText()); |
| 84 | ltCreateBuilder = DefaultMepLtCreate.builder(remoteMepMac); |
| 85 | } else { |
| 86 | throw new IllegalArgumentException( |
| 87 | "Either a remoteMepId or a remoteMepMac"); |
| 88 | } |
| 89 | |
| 90 | JsonNode defaultTtlNode = linktraceNode.get(DEFAULT_TTL); |
| 91 | if (defaultTtlNode != null) { |
| 92 | short defaultTtl = (short) defaultTtlNode.asInt(); |
| 93 | ltCreateBuilder.defaultTtl(defaultTtl); |
| 94 | } |
| 95 | |
| 96 | JsonNode transmitLtmFlagsNode = linktraceNode.get(TRANSMIT_LTM_FLAGS); |
| 97 | if (transmitLtmFlagsNode != null) { |
| 98 | if (transmitLtmFlagsNode.asText().isEmpty()) { |
| 99 | ltCreateBuilder.transmitLtmFlags(BitSet.valueOf(new long[]{0})); |
| 100 | } else if (transmitLtmFlagsNode.asText().equals(USE_FDB_ONLY)) { |
| 101 | ltCreateBuilder.transmitLtmFlags(BitSet.valueOf(new long[]{1})); |
| 102 | } else { |
| 103 | throw new IllegalArgumentException("Expecting value 'use-fdb-only' " + |
| 104 | "or '' for " + TRANSMIT_LTM_FLAGS); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | return ltCreateBuilder.build(); |
| 109 | } |
| 110 | } |