rulemgt/src/main/java/org/onap/holmes/rulemgt/wrapper/RuleMgtWrapper.java

   1 /**\r
   2  * Copyright 2017 ZTE Corporation.\r
   3  *\r
   4  * Licensed under the Apache License, Version 2.0 (the "License");\r
   5  * you may not use this file except in compliance with the License.\r
   6  * You may obtain a copy of the License at\r
   7  *\r
   8  *     http://www.apache.org/licenses/LICENSE-2.0\r
   9  *\r
  10  * Unless required by applicable law or agreed to in writing, software\r
  11  * distributed under the License is distributed on an "AS IS" BASIS,\r
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  13  * See the License for the specific language governing permissions and\r
  14  * limitations under the License.\r
  15  */\r
  16 package org.onap.holmes.rulemgt.wrapper;\r
  17 \r
  18 import java.util.ArrayList;\r
  19 import java.util.Date;\r
  20 import java.util.List;\r
  21 import javax.annotation.PostConstruct;\r
  22 import javax.inject.Inject;\r
  23 import javax.inject.Singleton;\r
  24 import lombok.extern.slf4j.Slf4j;\r
  25 import org.jvnet.hk2.annotations.Service;\r
  26 import org.onap.holmes.common.dmaap.DmaapService;\r
  27 import org.onap.holmes.rulemgt.bean.request.CorrelationCheckRule4Engine;\r
  28 import org.onap.holmes.rulemgt.bean.response.RuleResult4API;\r
  29 import org.onap.holmes.rulemgt.constant.RuleMgtConstant;\r
  30 import org.onap.holmes.rulemgt.db.CorrelationRuleDao;\r
  31 import org.onap.holmes.common.api.entity.CorrelationRule;\r
  32 import org.onap.holmes.common.exception.CorrelationException;\r
  33 import org.onap.holmes.common.utils.DbDaoUtil;\r
  34 import org.onap.holmes.rulemgt.bean.request.CorrelationDeployRule4Engine;\r
  35 import org.onap.holmes.rulemgt.bean.request.RuleCreateRequest;\r
  36 import org.onap.holmes.rulemgt.bean.request.RuleDeleteRequest;\r
  37 import org.onap.holmes.rulemgt.bean.request.RuleQueryCondition;\r
  38 import org.onap.holmes.rulemgt.bean.request.RuleUpdateRequest;\r
  39 import org.onap.holmes.rulemgt.bean.response.RuleAddAndUpdateResponse;\r
  40 import org.onap.holmes.rulemgt.bean.response.RuleQueryListResponse;\r
  41 import org.onap.holmes.rulemgt.bolt.enginebolt.EngineWrapper;\r
  42 import org.onap.holmes.rulemgt.db.CorrelationRuleQueryDao;\r
  43 \r
  44 \r
  45 @Service\r
  46 @Singleton\r
  47 @Slf4j\r
  48 public class RuleMgtWrapper {\r
  49 \r
  50     @Inject\r
  51     private CorrelationRuleQueryDao correlationRuleQueryDao;\r
  52     @Inject\r
  53     private EngineWrapper engineWarpper;\r
  54     @Inject\r
  55     private DbDaoUtil daoUtil;\r
  56 \r
  57     private CorrelationRuleDao correlationRuleDao;\r
  58 \r
  59     @PostConstruct\r
  60     public void initDaoUtil() {\r
  61         correlationRuleDao = daoUtil.getJdbiDaoByOnDemand(CorrelationRuleDao.class);\r
  62     }\r
  63 \r
  64     public RuleAddAndUpdateResponse addCorrelationRule(String creator, RuleCreateRequest ruleCreateRequest)\r
  65             throws CorrelationException {\r
  66         if (ruleCreateRequest == null) {\r
  67             throw new CorrelationException("The request object can not be empty!");\r
  68         }\r
  69         CorrelationRule correlationRule = convertCreateRequest2Rule(creator,\r
  70                 ruleCreateRequest);\r
  71         checkCorrelation(correlationRule);\r
  72         CorrelationRule ruleTemp = correlationRuleDao.queryRuleByRuleName(correlationRule.getName());\r
  73         if (ruleTemp != null) {\r
  74             throw new CorrelationException("A rule with the same name already exists.");\r
  75         }\r
  76         \r
  77         String packageName = deployRule2Engine(correlationRule);\r
  78         DmaapService.loopControlNames.put(packageName, ruleCreateRequest.getLoopControlName());\r
  79         correlationRule.setPackageName(packageName);\r
  80         CorrelationRule result = null;\r
  81         try {\r
  82             result = correlationRuleDao.saveRule(correlationRule);\r
  83         } catch (CorrelationException e) {\r
  84             engineWarpper.deleteRuleFromEngine(packageName);\r
  85             throw new CorrelationException(e.getMessage());\r
  86         }\r
  87         RuleAddAndUpdateResponse ruleAddAndUpdateResponse = new RuleAddAndUpdateResponse();\r
  88         ruleAddAndUpdateResponse.setRuleId(result.getRid());\r
  89         return ruleAddAndUpdateResponse;\r
  90     }\r
  91 \r
  92     public RuleAddAndUpdateResponse updateCorrelationRule(String modifier, RuleUpdateRequest ruleUpdateRequest)\r
  93             throws CorrelationException {\r
  94         if (ruleUpdateRequest == null) {\r
  95             throw new CorrelationException("The request object can not be empty!");\r
  96         }\r
  97         CorrelationRule oldCorrelationRule = correlationRuleDao.queryRuleByRid(ruleUpdateRequest.getRuleId());\r
  98         if (oldCorrelationRule == null) {\r
  99             throw new CorrelationException("You're trying to update a rule which does not exist in the system.");\r
 100         }\r
 101         CorrelationRule newCorrelationRule = convertRuleUpdateRequest2CorrelationRule(modifier,\r
 102                 ruleUpdateRequest, oldCorrelationRule.getName());\r
 103         checkCorrelation(newCorrelationRule);\r
 104         RuleAddAndUpdateResponse ruleChangeResponse = new RuleAddAndUpdateResponse();\r
 105         ruleChangeResponse.setRuleId(newCorrelationRule.getRid());\r
 106         if (!haveChange(newCorrelationRule, oldCorrelationRule)) {\r
 107             return ruleChangeResponse;\r
 108         }\r
 109         if (oldCorrelationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {\r
 110             engineWarpper.deleteRuleFromEngine(oldCorrelationRule.getPackageName());\r
 111         }\r
 112         newCorrelationRule.setPackageName(deployRule2Engine(newCorrelationRule));\r
 113         correlationRuleDao.updateRule(newCorrelationRule);\r
 114         return ruleChangeResponse;\r
 115     }\r
 116 \r
 117     private void checkCorrelation(CorrelationRule correlationRule) throws CorrelationException {\r
 118         int enabled = correlationRule.getEnabled();\r
 119         String ruleName = correlationRule.getName() == null ? "" : correlationRule.getName().trim();\r
 120         String content = correlationRule.getContent() == null ? "" : correlationRule.getContent().trim();\r
 121         if ("".equals(content)) {\r
 122             throw new CorrelationException("The contents of the rule can not be empty!");\r
 123         }\r
 124         if (enabled != RuleMgtConstant.STATUS_RULE_CLOSE\r
 125                 && enabled != RuleMgtConstant.STATUS_RULE_OPEN) {\r
 126             throw new CorrelationException("Invalid rule status. Only 0 (disabled) and 1 (enabled) are allowed.");\r
 127         }\r
 128         if ("".equals(ruleName)) {\r
 129             throw new CorrelationException("The name of the rule can not be empty.");\r
 130         }\r
 131     }\r
 132 \r
 133     private boolean haveChange(CorrelationRule newCorrelationRule, CorrelationRule oldCorrelationRule) {\r
 134         String newContent = newCorrelationRule.getContent();\r
 135         String oldContent = oldCorrelationRule.getContent();\r
 136         int newEnabled = newCorrelationRule.getEnabled();\r
 137         int oldEnabled = oldCorrelationRule.getEnabled();\r
 138         String newDes = newCorrelationRule.getDescription();\r
 139         String oldDes = oldCorrelationRule.getDescription();\r
 140         if (newContent.equals(oldContent) && newEnabled == oldEnabled && newDes.equals(oldDes)) {\r
 141             return false;\r
 142         }\r
 143         return true;\r
 144     }\r
 145 \r
 146     public void deleteCorrelationRule(RuleDeleteRequest ruleDeleteRequest)\r
 147             throws CorrelationException {\r
 148         if (ruleDeleteRequest == null) {\r
 149             throw new CorrelationException("The request object can not be empty!");\r
 150         }\r
 151         CorrelationRule correlationRule = correlationRuleDao.queryRuleByRid(ruleDeleteRequest.getRuleId());\r
 152         if (correlationRule == null) {\r
 153             log.warn("the rule:rule id=" + ruleDeleteRequest.getRuleId() + " does not exist the database.");\r
 154             throw new CorrelationException("You're trying to delete a rule which does not exist in the system.");\r
 155         }\r
 156         if (correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {\r
 157             engineWarpper.deleteRuleFromEngine(correlationRule.getPackageName());\r
 158         }\r
 159         correlationRuleDao.deleteRule(correlationRule);\r
 160     }\r
 161 \r
 162     private CorrelationRule convertCreateRequest2Rule(String userName,\r
 163             RuleCreateRequest ruleCreateRequest) throws CorrelationException {\r
 164         String tempContent = ruleCreateRequest.getContent();\r
 165         CorrelationRule correlationRule = new CorrelationRule();\r
 166         String ruleId = "rule_" + System.currentTimeMillis();\r
 167         String description = ruleCreateRequest.getDescription() == null ? "" : ruleCreateRequest.getDescription();\r
 168         correlationRule.setRid(ruleId);\r
 169         if (tempContent != null) {\r
 170             correlationRule.setContent(tempContent.trim());\r
 171         }\r
 172         correlationRule.setDescription(description);\r
 173         correlationRule.setCreateTime(new Date());\r
 174         correlationRule.setUpdateTime(new Date());\r
 175         correlationRule.setName(ruleCreateRequest.getRuleName());\r
 176         correlationRule.setEngineID("correlation-d");\r
 177         correlationRule.setEngineType("");\r
 178         correlationRule.setTemplateID(0);\r
 179         correlationRule.setVendor("");\r
 180         correlationRule.setCreator(userName);\r
 181         correlationRule.setModifier(userName);\r
 182         correlationRule.setEnabled(ruleCreateRequest.getEnabled());\r
 183         return correlationRule;\r
 184     }\r
 185 \r
 186     private CorrelationRule convertRuleUpdateRequest2CorrelationRule(String modifier,\r
 187             RuleUpdateRequest ruleUpdateRequest, String ruleName) throws CorrelationException {\r
 188         CorrelationRule correlationRule = new CorrelationRule();\r
 189         String description = ruleUpdateRequest.getDescription() == null ? "" : ruleUpdateRequest.getDescription();\r
 190         correlationRule.setRid(ruleUpdateRequest.getRuleId());\r
 191         correlationRule.setContent(ruleUpdateRequest.getContent());\r
 192         correlationRule.setDescription(description);\r
 193         correlationRule.setEnabled(ruleUpdateRequest.getEnabled());\r
 194         correlationRule.setUpdateTime(new Date());\r
 195         correlationRule.setModifier(modifier);\r
 196         correlationRule.setName(ruleName);\r
 197         return correlationRule;\r
 198     }\r
 199 \r
 200     private String deployRule2Engine(CorrelationRule correlationRule)\r
 201             throws CorrelationException {\r
 202         if (engineWarpper.checkRuleFromEngine(correlationRules2CheckRule(correlationRule)) && (\r
 203                 correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN)) {\r
 204             return engineWarpper.deployEngine(correlationRules2DeployRule(correlationRule));\r
 205         }\r
 206         return "";\r
 207     }\r
 208 \r
 209     public RuleQueryListResponse getCorrelationRuleByCondition(\r
 210             RuleQueryCondition ruleQueryCondition) throws CorrelationException {\r
 211         List<CorrelationRule> correlationRule = correlationRuleQueryDao\r
 212                 .getCorrelationRulesByCondition(ruleQueryCondition);\r
 213         RuleQueryListResponse ruleQueryListResponse = new RuleQueryListResponse();\r
 214         ruleQueryListResponse.setTotalCount(correlationRule.size());\r
 215         ruleQueryListResponse\r
 216                 .setCorrelationRules(correlationRules2RuleResult4APIs(correlationRule));\r
 217         return ruleQueryListResponse;\r
 218     }\r
 219 \r
 220     private List<RuleResult4API> correlationRules2RuleResult4APIs(\r
 221             List<CorrelationRule> correlationRules) {\r
 222         List<RuleResult4API> ruleResult4APIs = new ArrayList<RuleResult4API>();\r
 223         for (CorrelationRule correlationRule : correlationRules) {\r
 224             RuleResult4API ruleResult4API = new RuleResult4API();\r
 225             String description = correlationRule.getDescription() == null ? "" : correlationRule.getDescription();\r
 226             ruleResult4API.setRuleId(correlationRule.getRid());\r
 227             ruleResult4API.setRuleName(correlationRule.getName());\r
 228             ruleResult4API.setDescription(description);\r
 229             ruleResult4API.setContent(correlationRule.getContent());\r
 230             ruleResult4API.setCreateTime(correlationRule.getCreateTime());\r
 231             ruleResult4API.setCreator(correlationRule.getCreator());\r
 232             ruleResult4API.setUpdateTime(correlationRule.getUpdateTime());\r
 233             ruleResult4API.setModifier(correlationRule.getModifier());\r
 234             ruleResult4API.setEnabled(correlationRule.getEnabled());\r
 235             ruleResult4APIs.add(ruleResult4API);\r
 236         }\r
 237         return ruleResult4APIs;\r
 238     }\r
 239 \r
 240     private CorrelationDeployRule4Engine correlationRules2DeployRule(\r
 241             CorrelationRule correlationRule) {\r
 242         CorrelationDeployRule4Engine correlationDeployRule4Engine = new CorrelationDeployRule4Engine();\r
 243         correlationDeployRule4Engine.setContent(correlationRule.getContent());\r
 244         correlationDeployRule4Engine.setEngineId(correlationRule.getEngineID());\r
 245         return correlationDeployRule4Engine;\r
 246     }\r
 247 \r
 248     private CorrelationCheckRule4Engine correlationRules2CheckRule(\r
 249             CorrelationRule correlationRule) {\r
 250         CorrelationCheckRule4Engine correlationCheckRule4Engine = new CorrelationCheckRule4Engine();\r
 251         correlationCheckRule4Engine.setContent(correlationRule.getContent());\r
 252         return correlationCheckRule4Engine;\r
 253     }\r
 254 }\r