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         String packageName = deployRule2Engine(correlationRule, ruleCreateRequest.getLoopControlName());\r
  77         correlationRule.setPackageName(packageName);\r
  78         CorrelationRule result = null;\r
  79         try {\r
  80             result = correlationRuleDao.saveRule(correlationRule);\r
  81         } catch (CorrelationException e) {\r
  82             engineWarpper.deleteRuleFromEngine(packageName);\r
  83             throw new CorrelationException(e.getMessage());\r
  84         }\r
  85         RuleAddAndUpdateResponse ruleAddAndUpdateResponse = new RuleAddAndUpdateResponse();\r
  86         ruleAddAndUpdateResponse.setRuleId(result.getRid());\r
  87         return ruleAddAndUpdateResponse;\r
  88     }\r
  89 \r
  90     public RuleAddAndUpdateResponse updateCorrelationRule(String modifier, RuleUpdateRequest ruleUpdateRequest)\r
  91             throws CorrelationException {\r
  92         if (ruleUpdateRequest == null) {\r
  93             throw new CorrelationException("The request object can not be empty!");\r
  94         }\r
  95         CorrelationRule oldCorrelationRule = correlationRuleDao.queryRuleByRid(ruleUpdateRequest.getRuleId());\r
  96         if (oldCorrelationRule == null) {\r
  97             throw new CorrelationException("You're trying to update a rule which does not exist in the system.");\r
  98         }\r
  99         CorrelationRule newCorrelationRule = convertRuleUpdateRequest2CorrelationRule(modifier,\r
 100                 ruleUpdateRequest, oldCorrelationRule.getName());\r
 101         checkCorrelation(newCorrelationRule);\r
 102         RuleAddAndUpdateResponse ruleChangeResponse = new RuleAddAndUpdateResponse();\r
 103         ruleChangeResponse.setRuleId(newCorrelationRule.getRid());\r
 104         if (!haveChange(newCorrelationRule, oldCorrelationRule)) {\r
 105             return ruleChangeResponse;\r
 106         }\r
 107         if (oldCorrelationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {\r
 108             engineWarpper.deleteRuleFromEngine(oldCorrelationRule.getPackageName());\r
 109         }\r
 110         newCorrelationRule.setPackageName(deployRule2Engine(newCorrelationRule));\r
 111         correlationRuleDao.updateRule(newCorrelationRule);\r
 112         return ruleChangeResponse;\r
 113     }\r
 114 \r
 115     private void checkCorrelation(CorrelationRule correlationRule) throws CorrelationException {\r
 116         int enabled = correlationRule.getEnabled();\r
 117         String ruleName = correlationRule.getName() == null ? "" : correlationRule.getName().trim();\r
 118         String content = correlationRule.getContent() == null ? "" : correlationRule.getContent().trim();\r
 119         if ("".equals(content)) {\r
 120             throw new CorrelationException("The contents of the rule can not be empty!");\r
 121         }\r
 122         if (enabled != RuleMgtConstant.STATUS_RULE_CLOSE\r
 123                 && enabled != RuleMgtConstant.STATUS_RULE_OPEN) {\r
 124             throw new CorrelationException("Invalid rule status. Only 0 (disabled) and 1 (enabled) are allowed.");\r
 125         }\r
 126         if ("".equals(ruleName)) {\r
 127             throw new CorrelationException("The name of the rule can not be empty.");\r
 128         }\r
 129     }\r
 130 \r
 131     private boolean haveChange(CorrelationRule newCorrelationRule, CorrelationRule oldCorrelationRule) {\r
 132         String newContent = newCorrelationRule.getContent();\r
 133         String oldContent = oldCorrelationRule.getContent();\r
 134         int newEnabled = newCorrelationRule.getEnabled();\r
 135         int oldEnabled = oldCorrelationRule.getEnabled();\r
 136         String newDes = newCorrelationRule.getDescription();\r
 137         String oldDes = oldCorrelationRule.getDescription();\r
 138         if (newContent.equals(oldContent) && newEnabled == oldEnabled && newDes.equals(oldDes)) {\r
 139             return false;\r
 140         }\r
 141         return true;\r
 142     }\r
 143 \r
 144     public void deleteCorrelationRule(RuleDeleteRequest ruleDeleteRequest)\r
 145             throws CorrelationException {\r
 146         if (ruleDeleteRequest == null) {\r
 147             throw new CorrelationException("The request object can not be empty!");\r
 148         }\r
 149         CorrelationRule correlationRule = correlationRuleDao.queryRuleByRid(ruleDeleteRequest.getRuleId());\r
 150         if (correlationRule == null) {\r
 151             log.warn("the rule:rule id=" + ruleDeleteRequest.getRuleId() + " does not exist the database.");\r
 152             throw new CorrelationException("You're trying to delete a rule which does not exist in the system.");\r
 153         }\r
 154         if (correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {\r
 155             engineWarpper.deleteRuleFromEngine(correlationRule.getPackageName());\r
 156         }\r
 157         correlationRuleDao.deleteRule(correlationRule);\r
 158     }\r
 159 \r
 160     private CorrelationRule convertCreateRequest2Rule(String userName,\r
 161             RuleCreateRequest ruleCreateRequest) throws CorrelationException {\r
 162         String tempContent = ruleCreateRequest.getContent();\r
 163         CorrelationRule correlationRule = new CorrelationRule();\r
 164         String ruleId = "rule_" + System.currentTimeMillis();\r
 165         String description = ruleCreateRequest.getDescription() == null ? "" : ruleCreateRequest.getDescription();\r
 166         correlationRule.setRid(ruleId);\r
 167         if (tempContent != null) {\r
 168             correlationRule.setContent(tempContent.trim());\r
 169         }\r
 170         correlationRule.setDescription(description);\r
 171         correlationRule.setCreateTime(new Date());\r
 172         correlationRule.setUpdateTime(new Date());\r
 173         correlationRule.setName(ruleCreateRequest.getRuleName());\r
 174         correlationRule.setEngineID("correlation-d");\r
 175         correlationRule.setEngineType("");\r
 176         correlationRule.setTemplateID(0);\r
 177         correlationRule.setVendor("");\r
 178         correlationRule.setCreator(userName);\r
 179         correlationRule.setModifier(userName);\r
 180         correlationRule.setEnabled(ruleCreateRequest.getEnabled());\r
 181         return correlationRule;\r
 182     }\r
 183 \r
 184     private CorrelationRule convertRuleUpdateRequest2CorrelationRule(String modifier,\r
 185             RuleUpdateRequest ruleUpdateRequest, String ruleName) throws CorrelationException {\r
 186         CorrelationRule correlationRule = new CorrelationRule();\r
 187         String description = ruleUpdateRequest.getDescription() == null ? "" : ruleUpdateRequest.getDescription();\r
 188         correlationRule.setRid(ruleUpdateRequest.getRuleId());\r
 189         correlationRule.setContent(ruleUpdateRequest.getContent());\r
 190         correlationRule.setDescription(description);\r
 191         correlationRule.setEnabled(ruleUpdateRequest.getEnabled());\r
 192         correlationRule.setUpdateTime(new Date());\r
 193         correlationRule.setModifier(modifier);\r
 194         correlationRule.setName(ruleName);\r
 195         return correlationRule;\r
 196     }\r
 197 \r
 198     private String deployRule2Engine(CorrelationRule correlationRule)\r
 199             throws CorrelationException {\r
 200         if (engineWarpper.checkRuleFromEngine(correlationRules2CheckRule(correlationRule)) && (\r
 201                 correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN)) {\r
 202             return engineWarpper.deployEngine(correlationRules2DeployRule(correlationRule));\r
 203         }\r
 204         return "";\r
 205     }\r
 206 \r
 207     private String deployRule2Engine(CorrelationRule correlationRule, String loopControlName)\r
 208             throws CorrelationException {\r
 209         if (engineWarpper.checkRuleFromEngine(correlationRules2CheckRule(correlationRule)) && (\r
 210                 correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN)) {\r
 211             return engineWarpper.deployEngine(correlationRules2DeployRule(correlationRule, loopControlName));\r
 212         }\r
 213         return "";\r
 214     }\r
 215 \r
 216     public RuleQueryListResponse getCorrelationRuleByCondition(\r
 217             RuleQueryCondition ruleQueryCondition) throws CorrelationException {\r
 218         List<CorrelationRule> correlationRule = correlationRuleQueryDao\r
 219                 .getCorrelationRulesByCondition(ruleQueryCondition);\r
 220         RuleQueryListResponse ruleQueryListResponse = new RuleQueryListResponse();\r
 221         ruleQueryListResponse.setTotalCount(correlationRule.size());\r
 222         ruleQueryListResponse\r
 223                 .setCorrelationRules(correlationRules2RuleResult4APIs(correlationRule));\r
 224         return ruleQueryListResponse;\r
 225     }\r
 226 \r
 227     private List<RuleResult4API> correlationRules2RuleResult4APIs(\r
 228             List<CorrelationRule> correlationRules) {\r
 229         List<RuleResult4API> ruleResult4APIs = new ArrayList<RuleResult4API>();\r
 230         for (CorrelationRule correlationRule : correlationRules) {\r
 231             RuleResult4API ruleResult4API = new RuleResult4API();\r
 232             String description = correlationRule.getDescription() == null ? "" : correlationRule.getDescription();\r
 233             ruleResult4API.setRuleId(correlationRule.getRid());\r
 234             ruleResult4API.setRuleName(correlationRule.getName());\r
 235             ruleResult4API.setDescription(description);\r
 236             ruleResult4API.setContent(correlationRule.getContent());\r
 237             ruleResult4API.setCreateTime(correlationRule.getCreateTime());\r
 238             ruleResult4API.setCreator(correlationRule.getCreator());\r
 239             ruleResult4API.setUpdateTime(correlationRule.getUpdateTime());\r
 240             ruleResult4API.setModifier(correlationRule.getModifier());\r
 241             ruleResult4API.setEnabled(correlationRule.getEnabled());\r
 242             ruleResult4APIs.add(ruleResult4API);\r
 243         }\r
 244         return ruleResult4APIs;\r
 245     }\r
 246 \r
 247     private CorrelationDeployRule4Engine correlationRules2DeployRule(\r
 248             CorrelationRule correlationRule) {\r
 249         CorrelationDeployRule4Engine correlationDeployRule4Engine = new CorrelationDeployRule4Engine();\r
 250         correlationDeployRule4Engine.setContent(correlationRule.getContent());\r
 251         correlationDeployRule4Engine.setEngineId(correlationRule.getEngineID());\r
 252         return correlationDeployRule4Engine;\r
 253     }\r
 254 \r
 255     private CorrelationDeployRule4Engine correlationRules2DeployRule(\r
 256             CorrelationRule correlationRule, String loopControlName) {\r
 257         CorrelationDeployRule4Engine correlationDeployRule4Engine = new CorrelationDeployRule4Engine();\r
 258         correlationDeployRule4Engine.setContent(correlationRule.getContent());\r
 259         correlationDeployRule4Engine.setEngineId(correlationRule.getEngineID());\r
 260         correlationDeployRule4Engine.setLoopControlName(loopControlName);\r
 261         return correlationDeployRule4Engine;\r
 262     }\r
 263 \r
 264     private CorrelationCheckRule4Engine correlationRules2CheckRule(\r
 265             CorrelationRule correlationRule) {\r
 266         CorrelationCheckRule4Engine correlationCheckRule4Engine = new CorrelationCheckRule4Engine();\r
 267         correlationCheckRule4Engine.setContent(correlationRule.getContent());\r
 268         return correlationCheckRule4Engine;\r
 269     }\r
 270 }\r