| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.openstacknetworkingui; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| /** |
| * Parser class for flow trace result string from OVS28. |
| */ |
| public final class Ovs28FlowTraceResultParser { |
| private static final String TRACE_NODE_NAME = "traceNodeName"; |
| private static final String IS_SUCCESS = "isSuccess"; |
| private static final String FLOW_RULES = "flowRules"; |
| private static final String TABLE = "table"; |
| private static final String PRIORITY = "priority"; |
| private static final String SELECTOR = "selector"; |
| private static final String ACTIONS = "actions"; |
| private static final String BRIDGE = "bridge"; |
| private static final String DATAPATH = "Datapath"; |
| private static final String DROP = "drop"; |
| private static final String COMMA = ","; |
| private static final String DOT = "\\."; |
| private static final String NEW_LINE = "\n"; |
| |
| private Ovs28FlowTraceResultParser() { |
| } |
| |
| public static ObjectNode flowTraceResultInJson(String outputStream, String hostName) { |
| if (outputStream == null || hostName == null) { |
| return null; |
| } |
| |
| ObjectMapper mapper = new ObjectMapper(); |
| ObjectNode jsonNode = mapper.createObjectNode(); |
| |
| int flowRuleStartLineNum = 0; |
| int flowRuleEndLineNum = 0; |
| |
| jsonNode.put(TRACE_NODE_NAME, hostName); |
| |
| String[] lines = outputStream.split(NEW_LINE); |
| |
| for (int i = 0; i < lines.length; i++) { |
| if (lines[i].startsWith(BRIDGE)) { |
| flowRuleStartLineNum = i + 2; |
| } |
| |
| if (lines[i].startsWith(DATAPATH)) { |
| flowRuleEndLineNum = i; |
| break; |
| } |
| } |
| |
| ArrayNode arrayNode = jsonNode.putArray(FLOW_RULES); |
| |
| for (int i = flowRuleStartLineNum; i < flowRuleEndLineNum; i = i + 2) { |
| if (!isNewFlowTable(lines[i])) { |
| break; |
| } |
| |
| ObjectNode flowRule = arrayNode.addObject(); |
| |
| flowRule.put(TABLE, tableNum(lines[i])); |
| flowRule.put(PRIORITY, priority(lines[i])); |
| flowRule.put(SELECTOR, selector(lines[i])); |
| |
| String actions = action(lines[i + 1]); |
| |
| if (!isNewFlowTable(lines[i + 2])) { |
| actions = actions + "\n" + action(lines[i + 2]); |
| i = i + 1; |
| } |
| |
| flowRule.put(ACTIONS, actions); |
| } |
| |
| if (lines[flowRuleEndLineNum].contains(DROP)) { |
| jsonNode.put(IS_SUCCESS, false); |
| } else { |
| jsonNode.put(IS_SUCCESS, true); |
| } |
| |
| return jsonNode; |
| } |
| |
| private static boolean isNewFlowTable(String line) { |
| return line.contains(PRIORITY); |
| } |
| |
| private static String tableNum(String line) { |
| return line.split(DOT)[0]; |
| } |
| |
| private static String priority(String line) { |
| return line.split(PRIORITY)[1].trim().split(COMMA)[0]; |
| } |
| |
| private static String selector(String line) { |
| if (!hasSelector(line)) { |
| return ""; |
| } |
| |
| String selectorString = line.trim().split(PRIORITY)[0].split(" ")[1]; |
| |
| return selectorString.replaceAll(COMMA, NEW_LINE); |
| } |
| |
| private static boolean hasSelector(String line) { |
| String tableNum = tableNum(line); |
| return !line.replaceFirst(tableNum + DOT + " ", "").startsWith(PRIORITY); |
| } |
| |
| private static String action(String line) { |
| return line.trim(); |
| } |
| |
| |
| } |