| /* |
| * Copyright 2014-2015 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.provider.lldp.impl; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import com.fasterxml.jackson.core.JsonEncoding; |
| import com.fasterxml.jackson.core.JsonFactory; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.slf4j.Logger; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.EnumSet; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| /* |
| * JSON file example |
| * |
| |
| { |
| "deviceId" : [ "of:2222000000000000" ], |
| "deviceType" : [ "ROADM" ], |
| "annotation" : { "no-lldp" : null, "sendLLDP" : "false" } |
| } |
| */ |
| |
| /** |
| * Allows for reading and writing LLDP suppression definition as a JSON file. |
| */ |
| public class SuppressionRulesStore { |
| |
| private static final String DEVICE_ID = "deviceId"; |
| private static final String DEVICE_TYPE = "deviceType"; |
| private static final String ANNOTATION = "annotation"; |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private final File file; |
| |
| /** |
| * Creates a reader/writer of the LLDP suppression definition file. |
| * |
| * @param filePath location of the definition file |
| */ |
| public SuppressionRulesStore(String filePath) { |
| file = new File(filePath); |
| } |
| |
| /** |
| * Creates a reader/writer of the LLDP suppression definition file. |
| * |
| * @param file definition file |
| */ |
| public SuppressionRulesStore(File file) { |
| this.file = checkNotNull(file); |
| } |
| |
| /** |
| * Returns SuppressionRules. |
| * |
| * @return SuppressionRules |
| * @throws IOException if error occurred while reading the data |
| */ |
| public SuppressionRules read() throws IOException { |
| final Set<DeviceId> suppressedDevice = new HashSet<>(); |
| final EnumSet<Device.Type> suppressedDeviceType = EnumSet.noneOf(Device.Type.class); |
| final Map<String, String> suppressedAnnotation = new HashMap<>(); |
| |
| ObjectMapper mapper = new ObjectMapper(); |
| ObjectNode root = (ObjectNode) mapper.readTree(file); |
| |
| for (JsonNode deviceId : root.get(DEVICE_ID)) { |
| if (deviceId.isTextual()) { |
| suppressedDevice.add(DeviceId.deviceId(deviceId.asText())); |
| } else { |
| log.warn("Encountered unexpected JSONNode {} for deviceId", deviceId); |
| } |
| } |
| |
| for (JsonNode deviceType : root.get(DEVICE_TYPE)) { |
| if (deviceType.isTextual()) { |
| suppressedDeviceType.add(Device.Type.valueOf(deviceType.asText())); |
| } else { |
| log.warn("Encountered unexpected JSONNode {} for deviceType", deviceType); |
| } |
| } |
| |
| JsonNode annotation = root.get(ANNOTATION); |
| if (annotation.isObject()) { |
| ObjectNode obj = (ObjectNode) annotation; |
| Iterator<Entry<String, JsonNode>> it = obj.fields(); |
| while (it.hasNext()) { |
| Entry<String, JsonNode> entry = it.next(); |
| final String key = entry.getKey(); |
| final JsonNode value = entry.getValue(); |
| |
| if (value.isValueNode()) { |
| if (value.isNull()) { |
| suppressedAnnotation.put(key, SuppressionRules.ANY_VALUE); |
| } else { |
| suppressedAnnotation.put(key, value.asText()); |
| } |
| } else { |
| log.warn("Encountered unexpected JSON field {} for annotation", entry); |
| } |
| } |
| } else { |
| log.warn("Encountered unexpected JSONNode {} for annotation", annotation); |
| } |
| |
| return new SuppressionRules(suppressedDevice, |
| suppressedDeviceType, |
| suppressedAnnotation); |
| } |
| |
| /** |
| * Writes the given SuppressionRules. |
| * |
| * @param rules SuppressionRules |
| * @throws IOException if error occurred while writing the data |
| */ |
| public void write(SuppressionRules rules) throws IOException { |
| ObjectMapper mapper = new ObjectMapper(); |
| ObjectNode root = mapper.createObjectNode(); |
| ArrayNode deviceIds = mapper.createArrayNode(); |
| ArrayNode deviceTypes = mapper.createArrayNode(); |
| ObjectNode annotations = mapper.createObjectNode(); |
| root.set(DEVICE_ID, deviceIds); |
| root.set(DEVICE_TYPE, deviceTypes); |
| root.set(ANNOTATION, annotations); |
| |
| rules.getSuppressedDevice() |
| .forEach(deviceId -> deviceIds.add(deviceId.toString())); |
| |
| rules.getSuppressedDeviceType() |
| .forEach(type -> deviceTypes.add(type.toString())); |
| |
| rules.getSuppressedAnnotation().forEach((key, value) -> { |
| if (value == SuppressionRules.ANY_VALUE) { |
| annotations.putNull(key); |
| } else { |
| annotations.put(key, value); |
| } |
| }); |
| mapper.writeTree(new JsonFactory().createGenerator(file, JsonEncoding.UTF8), |
| root); |
| } |
| } |