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.rulemgt.bean.request.CorrelationCheckRule4Engine;\r
  27 import org.onap.holmes.rulemgt.bean.response.RuleResult4API;\r
  28 import org.onap.holmes.rulemgt.constant.RuleMgtConstant;\r
  29 import org.onap.holmes.rulemgt.db.CorrelationRuleDao;\r
  30 import org.onap.holmes.common.api.entity.CorrelationRule;\r
  31 import org.onap.holmes.common.exception.CorrelationException;\r
  32 import org.onap.holmes.common.utils.DbDaoUtil;\r
  33 import org.onap.holmes.rulemgt.bean.request.CorrelationDeployRule4Engine;\r
  34 import org.onap.holmes.rulemgt.bean.request.RuleCreateRequest;\r
  35 import org.onap.holmes.rulemgt.bean.request.RuleDeleteRequest;\r
  36 import org.onap.holmes.rulemgt.bean.request.RuleQueryCondition;\r
  37 import org.onap.holmes.rulemgt.bean.request.RuleUpdateRequest;\r
  38 import org.onap.holmes.rulemgt.bean.response.RuleAddAndUpdateResponse;\r
  39 import org.onap.holmes.rulemgt.bean.response.RuleQueryListResponse;\r
  40 import org.onap.holmes.rulemgt.bolt.enginebolt.EngineWrapper;\r
  41 import org.onap.holmes.rulemgt.db.CorrelationRuleQueryDao;\r
  42 \r
  43 \r
  44 @Service\r
  45 @Singleton\r
  46 @Slf4j\r
  47 public class RuleMgtWrapper {\r
  48 \r
  49     @Inject\r
  50     private CorrelationRuleQueryDao correlationRuleQueryDao;\r
  51     @Inject\r
  52     private EngineWrapper engineWarpper;\r
  53     @Inject\r
  54     private DbDaoUtil daoUtil;\r
  55 \r
  56     private CorrelationRuleDao correlationRuleDao;\r
  57 \r
  58     @PostConstruct\r
  59     public void initDaoUtil() {\r
  60         correlationRuleDao = daoUtil.getJdbiDaoByOnDemand(CorrelationRuleDao.class);\r
  61     }\r
  62 \r
  63     public RuleAddAndUpdateResponse addCorrelationRule(String creator, RuleCreateRequest ruleCreateRequest)\r
  64             throws CorrelationException {\r
  65         if (ruleCreateRequest == null) {\r
  66             throw new CorrelationException("The request object can not be empty!");\r
  67         }\r
  68         CorrelationRule correlationRule = convertCreateRequest2Rule(creator,\r
  69                 ruleCreateRequest);\r
  70         checkCorrelation(correlationRule);\r
  71         CorrelationRule ruleTemp = correlationRuleDao.queryRuleByRuleName(correlationRule.getName());\r
  72         if (ruleTemp != null) {\r
  73             throw new CorrelationException("A rule with the same name already exists.");\r
  74         }\r
  75         correlationRule.setPackageName(deployRule2Engine(correlationRule));\r
  76         CorrelationRule result = correlationRuleDao.saveRule(correlationRule);\r
  77         RuleAddAndUpdateResponse ruleAddAndUpdateResponse = new RuleAddAndUpdateResponse();\r
  78         ruleAddAndUpdateResponse.setRuleId(result.getRid());\r
  79         return ruleAddAndUpdateResponse;\r
  80     }\r
  81 \r
  82     public RuleAddAndUpdateResponse updateCorrelationRule(String modifier, RuleUpdateRequest ruleUpdateRequest)\r
  83             throws CorrelationException {\r
  84         if (ruleUpdateRequest == null) {\r
  85             throw new CorrelationException("The request object can not be empty!");\r
  86         }\r
  87         CorrelationRule oldCorrelationRule = correlationRuleDao.queryRuleByRid(ruleUpdateRequest.getRuleId());\r
  88         if (oldCorrelationRule == null) {\r
  89             throw new CorrelationException("You're trying to update a rule which does not exist in the system.");\r
  90         }\r
  91         CorrelationRule newCorrelationRule = convertRuleUpdateRequest2CorrelationRule(modifier,\r
  92                 ruleUpdateRequest, oldCorrelationRule.getName());\r
  93         checkCorrelation(newCorrelationRule);\r
  94         RuleAddAndUpdateResponse ruleChangeResponse = new RuleAddAndUpdateResponse();\r
  95         ruleChangeResponse.setRuleId(newCorrelationRule.getRid());\r
  96         if (!haveChange(newCorrelationRule, oldCorrelationRule)) {\r
  97             return ruleChangeResponse;\r
  98         }\r
  99         if (oldCorrelationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {\r
 100             engineWarpper.deleteRuleFromEngine(oldCorrelationRule.getPackageName());\r
 101         }\r
 102         newCorrelationRule.setPackageName(deployRule2Engine(newCorrelationRule));\r
 103         correlationRuleDao.updateRule(newCorrelationRule);\r
 104         return ruleChangeResponse;\r
 105     }\r
 106 \r
 107     private void checkCorrelation(CorrelationRule correlationRule) throws CorrelationException {\r
 108         int enabled = correlationRule.getEnabled();\r
 109         String ruleName = correlationRule.getName() == null ? "" : correlationRule.getName().trim();\r
 110         String content = correlationRule.getContent() == null ? "" : correlationRule.getContent().trim();\r
 111         if ("".equals(content)) {\r
 112             throw new CorrelationException("The contents of the rule can not be empty!");\r
 113         }\r
 114         if (enabled != RuleMgtConstant.STATUS_RULE_CLOSE\r
 115                 && enabled != RuleMgtConstant.STATUS_RULE_OPEN) {\r
 116             throw new CorrelationException("Invalid rule status. Only 0 (disabled) and 1 (enabled) are allowed.");\r
 117         }\r
 118         if ("".equals(ruleName)) {\r
 119             throw new CorrelationException("The name of the rule can not be empty.");\r
 120         }\r
 121     }\r
 122 \r
 123     private boolean haveChange(CorrelationRule newCorrelationRule, CorrelationRule oldCorrelationRule) {\r
 124         String newContent = newCorrelationRule.getContent();\r
 125         String oldContent = oldCorrelationRule.getContent();\r
 126         int newEnabled = newCorrelationRule.getEnabled();\r
 127         int oldEnabled = oldCorrelationRule.getEnabled();\r
 128         String newDes = newCorrelationRule.getDescription();\r
 129         String oldDes = oldCorrelationRule.getDescription();\r
 130         if (newContent.equals(oldContent) && newEnabled == oldEnabled && newDes.equals(oldDes)) {\r
 131             return false;\r
 132         }\r
 133         return true;\r
 134     }\r
 135 \r
 136     public void deleteCorrelationRule(RuleDeleteRequest ruleDeleteRequest)\r
 137             throws CorrelationException {\r
 138         if (ruleDeleteRequest == null) {\r
 139             throw new CorrelationException("The request object can not be empty!");\r
 140         }\r
 141         CorrelationRule correlationRule = correlationRuleDao.queryRuleByRid(ruleDeleteRequest.getRuleId());\r
 142         if (correlationRule == null) {\r
 143             log.warn("the rule:rule id=" + ruleDeleteRequest.getRuleId() + " does not exist the database.");\r
 144             throw new CorrelationException("You're trying to delete a rule which does not exist in the system.");\r
 145         }\r
 146         if (correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {\r
 147             engineWarpper.deleteRuleFromEngine(correlationRule.getPackageName());\r
 148         }\r
 149         correlationRuleDao.deleteRule(correlationRule);\r
 150     }\r
 151 \r
 152     private CorrelationRule convertCreateRequest2Rule(String userName,\r
 153             RuleCreateRequest ruleCreateRequest) throws CorrelationException {\r
 154         String tempContent = ruleCreateRequest.getContent();\r
 155         CorrelationRule correlationRule = new CorrelationRule();\r
 156         String ruleId = "rule_" + System.currentTimeMillis();\r
 157         String description = ruleCreateRequest.getDescription() == null ? "" : ruleCreateRequest.getDescription();\r
 158         correlationRule.setRid(ruleId);\r
 159         if (tempContent != null) {\r
 160             correlationRule.setContent(tempContent.trim());\r
 161         }\r
 162         correlationRule.setDescription(description);\r
 163         correlationRule.setCreateTime(new Date());\r
 164         correlationRule.setUpdateTime(new Date());\r
 165         correlationRule.setName(ruleCreateRequest.getRuleName());\r
 166         correlationRule.setEngineID("correlation-d");\r
 167         correlationRule.setEngineType("");\r
 168         correlationRule.setTemplateID(0);\r
 169         correlationRule.setVendor("");\r
 170         correlationRule.setCreator(userName);\r
 171         correlationRule.setModifier(userName);\r
 172         correlationRule.setEnabled(ruleCreateRequest.getEnabled());\r
 173         return correlationRule;\r
 174     }\r
 175 \r
 176     private CorrelationRule convertRuleUpdateRequest2CorrelationRule(String modifier,\r
 177             RuleUpdateRequest ruleUpdateRequest, String ruleName) throws CorrelationException {\r
 178         CorrelationRule correlationRule = new CorrelationRule();\r
 179         String description = ruleUpdateRequest.getDescription() == null ? "" : ruleUpdateRequest.getDescription();\r
 180         correlationRule.setRid(ruleUpdateRequest.getRuleId());\r
 181         correlationRule.setContent(ruleUpdateRequest.getContent());\r
 182         correlationRule.setDescription(description);\r
 183         correlationRule.setEnabled(ruleUpdateRequest.getEnabled());\r
 184         correlationRule.setUpdateTime(new Date());\r
 185         correlationRule.setModifier(modifier);\r
 186         correlationRule.setName(ruleName);\r
 187         return correlationRule;\r
 188     }\r
 189 \r
 190     private String deployRule2Engine(CorrelationRule correlationRule)\r
 191             throws CorrelationException {\r
 192         if (engineWarpper.checkRuleFromEngine(correlationRules2CheckRule(correlationRule)) && (\r
 193                 correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN)) {\r
 194             return engineWarpper.deployEngine(correlationRules2DeployRule(correlationRule));\r
 195         }\r
 196         return "";\r
 197     }\r
 198 \r
 199     public RuleQueryListResponse getCorrelationRuleByCondition(\r
 200             RuleQueryCondition ruleQueryCondition) throws CorrelationException {\r
 201         List<CorrelationRule> correlationRule = correlationRuleQueryDao\r
 202                 .getCorrelationRulesByCondition(ruleQueryCondition);\r
 203         RuleQueryListResponse ruleQueryListResponse = new RuleQueryListResponse();\r
 204         ruleQueryListResponse.setTotalCount(correlationRule.size());\r
 205         ruleQueryListResponse\r
 206                 .setCorrelationRules(correlationRules2RuleResult4APIs(correlationRule));\r
 207         return ruleQueryListResponse;\r
 208     }\r
 209 \r
 210     private List<RuleResult4API> correlationRules2RuleResult4APIs(\r
 211             List<CorrelationRule> correlationRules) {\r
 212         List<RuleResult4API> ruleResult4APIs = new ArrayList<RuleResult4API>();\r
 213         for (CorrelationRule correlationRule : correlationRules) {\r
 214             RuleResult4API ruleResult4API = new RuleResult4API();\r
 215             String description = correlationRule.getDescription() == null ? "" : correlationRule.getDescription();\r
 216             ruleResult4API.setRuleId(correlationRule.getRid());\r
 217             ruleResult4API.setRuleName(correlationRule.getName());\r
 218             ruleResult4API.setDescription(description);\r
 219             ruleResult4API.setContent(correlationRule.getContent());\r
 220             ruleResult4API.setCreateTime(correlationRule.getCreateTime());\r
 221             ruleResult4API.setCreator(correlationRule.getCreator());\r
 222             ruleResult4API.setUpdateTime(correlationRule.getUpdateTime());\r
 223             ruleResult4API.setModifier(correlationRule.getModifier());\r
 224             ruleResult4API.setEnabled(correlationRule.getEnabled());\r
 225             ruleResult4APIs.add(ruleResult4API);\r
 226         }\r
 227         return ruleResult4APIs;\r
 228     }\r
 229 \r
 230     private CorrelationDeployRule4Engine correlationRules2DeployRule(\r
 231             CorrelationRule correlationRule) {\r
 232         CorrelationDeployRule4Engine correlationDeployRule4Engine = new CorrelationDeployRule4Engine();\r
 233         correlationDeployRule4Engine.setContent(correlationRule.getContent());\r
 234         correlationDeployRule4Engine.setEngineId(correlationRule.getEngineID());\r
 235         return correlationDeployRule4Engine;\r
 236     }\r
 237 \r
 238     private CorrelationCheckRule4Engine correlationRules2CheckRule(\r
 239             CorrelationRule correlationRule) {\r
 240         CorrelationCheckRule4Engine correlationCheckRule4Engine = new CorrelationCheckRule4Engine();\r
 241         correlationCheckRule4Engine.setContent(correlationRule.getContent());\r
 242         return correlationCheckRule4Engine;\r
 243     }\r
 244 }\r