hiroki | f4ed521 | 2018-05-26 22:39:38 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-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 | |
| 17 | package org.onosproject.odtn.utils.tapi; |
| 18 | |
| 19 | import java.util.List; |
| 20 | import java.util.UUID; |
| 21 | import org.apache.commons.lang.NotImplementedException; |
| 22 | import org.onlab.util.XmlString; |
| 23 | import org.onosproject.config.DynamicConfigService; |
| 24 | import org.onosproject.config.Filter; |
| 25 | import org.onosproject.yang.gen.v1.tapicommon.rev20180307.tapicommon.Uuid; |
| 26 | import org.onosproject.yang.model.DataNode; |
| 27 | import org.onosproject.yang.model.DefaultModelObjectData; |
| 28 | import org.onosproject.yang.model.DefaultResourceData; |
| 29 | import org.onosproject.yang.model.ModelConverter; |
| 30 | import org.onosproject.yang.model.ModelObject; |
| 31 | import org.onosproject.yang.model.ModelObjectData; |
| 32 | import org.onosproject.yang.model.ModelObjectId; |
| 33 | import org.onosproject.yang.model.ResourceData; |
| 34 | |
| 35 | import static org.onlab.osgi.DefaultServiceDirectory.getService; |
| 36 | import static org.onosproject.odtn.utils.YangToolUtil.toCharSequence; |
| 37 | import static org.onosproject.odtn.utils.YangToolUtil.toCompositeData; |
| 38 | import static org.onosproject.odtn.utils.YangToolUtil.toXmlCompositeStream; |
| 39 | |
| 40 | import org.onosproject.yang.model.ResourceId; |
| 41 | import org.slf4j.Logger; |
| 42 | |
| 43 | import static org.slf4j.LoggerFactory.getLogger; |
| 44 | |
| 45 | /** |
| 46 | * Utility abstract class to deal with TAPI ModelObject with DCS. |
| 47 | * |
| 48 | * @param <T> modelObject to be dealt with |
| 49 | */ |
| 50 | public abstract class TapiObjectHandler<T extends ModelObject> { |
| 51 | |
| 52 | public static final String ONOS_CP = "onos-cp"; |
| 53 | public static final String DEVICE_ID = "device-id"; |
| 54 | public static final String ODTN_PORT_TYPE = "odtn-port-type"; |
| 55 | |
| 56 | protected final Logger log = getLogger(getClass()); |
| 57 | |
| 58 | protected ModelConverter modelConverter; |
| 59 | protected DynamicConfigService dcs; |
| 60 | |
| 61 | protected T obj; |
| 62 | |
| 63 | /** |
| 64 | * Get modelObject uuid. |
| 65 | * |
| 66 | * @return Uuid |
| 67 | */ |
| 68 | public Uuid getId() { |
| 69 | return getIdDetail(); |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Generate and set modelObject uuid. |
| 74 | */ |
| 75 | public void setId() { |
| 76 | Uuid uuid = Uuid.of(UUID.randomUUID().toString()); |
| 77 | setIdDetail(uuid); |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Set modelObject uuid. |
| 82 | * |
| 83 | * @param uuid Uuid |
| 84 | */ |
| 85 | public void setId(Uuid uuid) { |
| 86 | setIdDetail(uuid); |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Get modelObject uuid, to be implemented in sub classes. |
| 91 | * |
| 92 | * @return Uuid |
| 93 | */ |
| 94 | protected abstract Uuid getIdDetail(); |
| 95 | |
| 96 | /** |
| 97 | * Set modelObject uuid, to be implemented in sub classes. |
| 98 | * |
| 99 | * @param uuid Uuid |
| 100 | */ |
| 101 | protected abstract void setIdDetail(Uuid uuid); |
| 102 | |
| 103 | /** |
| 104 | * Generate DCS modelObjectId for parent node. |
| 105 | * |
| 106 | * @return ModelObjectId of parent node |
| 107 | */ |
| 108 | public abstract ModelObjectId getParentModelObjectId(); |
| 109 | |
| 110 | /** |
| 111 | * Get modelObject instance. |
| 112 | * |
| 113 | * @return ModelObject of target node |
| 114 | */ |
| 115 | public T getModelObject() { |
| 116 | return obj; |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Set modelObject instance. |
| 121 | * |
| 122 | * @param newObj ModelObject to be set |
| 123 | */ |
| 124 | public void setModelObject(T newObj) { |
| 125 | obj = newObj; |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Get modelObjectData instance. |
| 130 | * |
| 131 | * @return ModelObjectData of target node |
| 132 | */ |
| 133 | public ModelObjectData getModelObjectData() { |
| 134 | ModelObject obj = getModelObject(); |
| 135 | ModelObjectId objId = getParentModelObjectId(); |
| 136 | |
| 137 | return DefaultModelObjectData.builder() |
| 138 | .addModelObject(obj) |
| 139 | .identifier(objId) |
| 140 | .build(); |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * Get modelObjectData instance for child node. |
| 145 | * <p> |
| 146 | * This modelObjectData is needed for read / update / delete operation |
| 147 | * to extract ResourceId of this modelObject itself. |
| 148 | * It's just workaround, fix in DCS needed. |
| 149 | * |
| 150 | * @return ModelObjectData of build target |
| 151 | */ |
| 152 | public ModelObjectData getChildModelObjectData() { |
| 153 | throw new NotImplementedException(); |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * Get DataNode instance. |
| 158 | * |
| 159 | * @return DataNode of target node |
| 160 | */ |
| 161 | public DataNode getDataNode() { |
| 162 | ResourceData rData = toResourceData(getModelObjectData()); |
| 163 | if (rData.dataNodes().size() > 1) { |
Ray Milkey | 2ee4585 | 2018-06-04 10:06:09 -0700 | [diff] [blame^] | 164 | throw new IllegalStateException("Multiple dataNode found."); |
hiroki | f4ed521 | 2018-05-26 22:39:38 -0700 | [diff] [blame] | 165 | } |
| 166 | return rData.dataNodes().get(0); |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Read modelObject from Dcs store. |
| 171 | * |
| 172 | * @return ModelObject |
| 173 | */ |
| 174 | public T read() { |
| 175 | return readOnDcs(); |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Add modelObject to Dcs store. |
| 180 | */ |
| 181 | public void add() { |
| 182 | createOnDcs(); |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Delete modelObject from Dcs store. |
| 187 | */ |
| 188 | public void remove() { |
| 189 | deleteOnDcs(); |
| 190 | } |
| 191 | |
| 192 | private void dcsSetup() { |
| 193 | dcs = getService(DynamicConfigService.class); |
| 194 | modelConverter = getService(ModelConverter.class); |
| 195 | } |
| 196 | |
| 197 | @SuppressWarnings("unchecked") |
| 198 | private T readOnDcs() { |
| 199 | dcsSetup(); |
| 200 | ResourceData rData1 = toResourceData(getChildModelObjectData()); |
| 201 | ResourceData rData2 = toResourceData(getModelObjectData()); |
| 202 | DataNode rNode = dcs.readNode(rData1.resourceId(), Filter.builder().build()); |
| 203 | obj = toModelObject(rNode, rData2.resourceId()); |
| 204 | return obj; |
| 205 | } |
| 206 | |
| 207 | private void createOnDcs() { |
| 208 | dcsSetup(); |
| 209 | ResourceData rData = toResourceData(getModelObjectData()); |
| 210 | addResourceDataToDcs(rData, rData.resourceId()); |
| 211 | } |
| 212 | |
| 213 | private void deleteOnDcs() { |
| 214 | dcsSetup(); |
| 215 | ResourceData rData = toResourceData(getChildModelObjectData()); |
| 216 | dcs.deleteNode(rData.resourceId()); |
| 217 | } |
| 218 | |
| 219 | private void addResourceDataToDcs(ResourceData input, ResourceId rid) { |
| 220 | if (input == null || input.dataNodes() == null) { |
| 221 | return; |
| 222 | } |
| 223 | List<DataNode> dataNodes = input.dataNodes(); |
| 224 | for (DataNode node : dataNodes) { |
| 225 | dcs.createNode(rid, node); |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | @SuppressWarnings("unchecked") |
| 230 | protected T toModelObject(DataNode rNode, ResourceId rId) { |
| 231 | dcsSetup(); |
| 232 | ResourceData rData = toResourceData(rNode, rId); |
| 233 | ModelObjectData modelObjectData = modelConverter.createModel(rData); |
| 234 | if (modelObjectData.modelObjects().size() > 1) { |
Ray Milkey | 2ee4585 | 2018-06-04 10:06:09 -0700 | [diff] [blame^] | 235 | throw new IllegalStateException("Multiple modelObject found."); |
hiroki | f4ed521 | 2018-05-26 22:39:38 -0700 | [diff] [blame] | 236 | } |
| 237 | return (T) modelObjectData.modelObjects().get(0); |
| 238 | } |
| 239 | |
| 240 | private ResourceData toResourceData(DataNode rNode, ResourceId rId) { |
| 241 | return DefaultResourceData.builder() |
| 242 | .addDataNode(rNode) |
| 243 | .resourceId(rId) |
| 244 | .build(); |
| 245 | } |
| 246 | |
| 247 | private ResourceData toResourceData(ModelObjectData data) { |
| 248 | dcsSetup(); |
| 249 | ResourceData rData = modelConverter.createDataNode(data); |
| 250 | |
| 251 | // for debug |
| 252 | CharSequence strNode = toCharSequence(toXmlCompositeStream(toCompositeData(rData))); |
| 253 | log.info("XML:\n{}", XmlString.prettifyXml(strNode)); |
| 254 | |
| 255 | return rData; |
| 256 | } |
| 257 | |
| 258 | } |