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/**
* Copyright 2017 ZTE Corporation.
*
* 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.openo.holmes.rulemgt.wrapper;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.inject.Singleton;
import lombok.extern.slf4j.Slf4j;
import org.jvnet.hk2.annotations.Service;
import org.openo.holmes.common.api.entity.CorrelationRule;
import org.openo.holmes.common.exception.CorrelationException;
import org.openo.holmes.common.utils.DbDaoUtil;
import org.openo.holmes.common.utils.I18nProxy;
import org.openo.holmes.rulemgt.bean.request.CorrelationCheckRule4Engine;
import org.openo.holmes.rulemgt.bean.request.CorrelationDeployRule4Engine;
import org.openo.holmes.rulemgt.bean.request.RuleCreateRequest;
import org.openo.holmes.rulemgt.bean.request.RuleDeleteRequest;
import org.openo.holmes.rulemgt.bean.request.RuleQueryCondition;
import org.openo.holmes.rulemgt.bean.request.RuleUpdateRequest;
import org.openo.holmes.rulemgt.bean.response.RuleAddAndUpdateResponse;
import org.openo.holmes.rulemgt.bean.response.RuleQueryListResponse;
import org.openo.holmes.rulemgt.bean.response.RuleResult4API;
import org.openo.holmes.rulemgt.bolt.enginebolt.EngineWrapper;
import org.openo.holmes.rulemgt.constant.RuleMgtConstant;
import org.openo.holmes.rulemgt.db.CorrelationRuleDao;
import org.openo.holmes.rulemgt.db.CorrelationRuleQueryDao;
@Service
@Singleton
@Slf4j
public class RuleMgtWrapper {
@Inject
private CorrelationRuleQueryDao correlationRuleQueryDao;
@Inject
private EngineWrapper engineWarpper;
@Inject
private DbDaoUtil daoUtil;
private CorrelationRuleDao correlationRuleDao;
@PostConstruct
public void initDaoUtil() {
correlationRuleDao = daoUtil.getJdbiDaoByOnDemand(CorrelationRuleDao.class);
}
public RuleAddAndUpdateResponse addCorrelationRule(String creator, RuleCreateRequest ruleCreateRequest)
throws CorrelationException {
if (ruleCreateRequest == null) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_REQUEST_OBJECT_IS_EMPTY);
}
CorrelationRule correlationRule = convertCreateRequest2Rule(creator,
ruleCreateRequest);
checkCorrelation(correlationRule);
CorrelationRule ruleTemp = correlationRuleDao.queryRuleByRuleName(correlationRule.getName());
if (ruleTemp != null) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_REPEAT_RULE_NAME);
}
correlationRule.setPackageName(deployRule2Engine(correlationRule));
CorrelationRule result = correlationRuleDao.saveRule(correlationRule);
RuleAddAndUpdateResponse ruleAddAndUpdateResponse = new RuleAddAndUpdateResponse();
ruleAddAndUpdateResponse.setRuleId(result.getRid());
return ruleAddAndUpdateResponse;
}
public RuleAddAndUpdateResponse updateCorrelationRule(String modifier, RuleUpdateRequest ruleUpdateRequest)
throws CorrelationException {
if (ruleUpdateRequest == null) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_REQUEST_OBJECT_IS_EMPTY);
}
CorrelationRule oldCorrelationRule = correlationRuleDao.queryRuleByRid(ruleUpdateRequest.getRuleId());
if (oldCorrelationRule == null) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_RULE_NOT_EXIST_DATABASE);
}
CorrelationRule newCorrelationRule = convertRuleUpdateRequest2CorrelationRule(modifier,
ruleUpdateRequest, oldCorrelationRule.getName());
checkCorrelation(newCorrelationRule);
RuleAddAndUpdateResponse ruleChangeResponse = new RuleAddAndUpdateResponse();
ruleChangeResponse.setRuleId(newCorrelationRule.getRid());
if (!haveChange(newCorrelationRule, oldCorrelationRule)) {
return ruleChangeResponse;
}
if (oldCorrelationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {
engineWarpper.deleteRuleFromEngine(oldCorrelationRule.getPackageName());
}
correlationRuleDao.updateRule(newCorrelationRule);
deployRule2Engine(newCorrelationRule);
return ruleChangeResponse;
}
private void checkCorrelation(CorrelationRule correlationRule) throws CorrelationException {
int enabled = correlationRule.getEnabled();
String ruleName = correlationRule.getName() == null ? "" : correlationRule.getName().trim();
String content = correlationRule.getContent() == null ? "" : correlationRule.getContent().trim();
if ("".equals(content)) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_CONTENT_CANNOT_BE_EMPTY);
}
if (enabled != RuleMgtConstant.STATUS_RULE_CLOSE
&& enabled != RuleMgtConstant.STATUS_RULE_OPEN) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_PARAMETER_ENABLED_ERROR);
}
if ("".equals(ruleName)) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_RULE_NAME_CANNOT_BE_EMPTY);
}
}
private boolean haveChange(CorrelationRule newCorrelationRule, CorrelationRule oldCorrelationRule) {
String newContent = newCorrelationRule.getContent();
String oldContent = oldCorrelationRule.getContent();
int newEnabled = newCorrelationRule.getEnabled();
int oldEnabled = oldCorrelationRule.getEnabled();
String newDes = newCorrelationRule.getDescription();
String oldDes = oldCorrelationRule.getDescription();
if (newContent.equals(oldContent) && newEnabled == oldEnabled && newDes.equals(oldDes)) {
return false;
}
return true;
}
public void deleteCorrelationRule(RuleDeleteRequest ruleDeleteRequest)
throws CorrelationException {
if (ruleDeleteRequest == null) {
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_REQUEST_OBJECT_IS_EMPTY);
}
CorrelationRule correlationRule = correlationRuleDao.queryRuleByRid(ruleDeleteRequest.getRuleId());
if (correlationRule == null) {
log.warn("the rule:rule id=" + ruleDeleteRequest.getRuleId() + " does not exist the database.");
throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_RULE_NOT_EXIST_DATABASE);
}
if (correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN) {
engineWarpper.deleteRuleFromEngine(correlationRule.getPackageName());
}
correlationRuleDao.deleteRule(correlationRule);
}
private CorrelationRule convertCreateRequest2Rule(String userName,
RuleCreateRequest ruleCreateRequest) throws CorrelationException {
String tempContent = ruleCreateRequest.getContent();
CorrelationRule correlationRule = new CorrelationRule();
String ruleId = "rule_" + System.currentTimeMillis();
correlationRule.setRid(ruleId);
if (tempContent != null) {
correlationRule.setContent(tempContent.trim());
}
correlationRule.setDescription(ruleCreateRequest.getDescription());
correlationRule.setCreateTime(new Date());
correlationRule.setUpdateTime(new Date());
correlationRule.setName(ruleCreateRequest.getRuleName());
correlationRule.setEngineID("correlation-d");
correlationRule.setEngineType("");
correlationRule.setTemplateID(0);
correlationRule.setVendor("");
correlationRule.setCreator(userName);
correlationRule.setModifier(userName);
correlationRule.setEnabled(ruleCreateRequest.getEnabled());
return correlationRule;
}
private CorrelationRule convertRuleUpdateRequest2CorrelationRule(String modifier,
RuleUpdateRequest ruleUpdateRequest, String ruleName) throws CorrelationException {
CorrelationRule correlationRule = new CorrelationRule();
correlationRule.setRid(ruleUpdateRequest.getRuleId());
correlationRule.setContent(ruleUpdateRequest.getContent());
correlationRule.setDescription(ruleUpdateRequest.getDescription());
correlationRule.setEnabled(ruleUpdateRequest.getEnabled());
correlationRule.setUpdateTime(new Date());
correlationRule.setModifier(modifier);
correlationRule.setName(ruleName);
return correlationRule;
}
private String deployRule2Engine(CorrelationRule correlationRule)
throws CorrelationException {
if (engineWarpper.checkRuleFromEngine(correlationRules2CheckRule(correlationRule)) && (
correlationRule.getEnabled() == RuleMgtConstant.STATUS_RULE_OPEN)) {
return engineWarpper.deployEngine(correlationRules2DeployRule(correlationRule));
}
return "";
}
public RuleQueryListResponse getCorrelationRuleByCondition(
RuleQueryCondition ruleQueryCondition) throws CorrelationException {
List<CorrelationRule> correlationRule = correlationRuleQueryDao
.getCorrelationRulesByCondition(ruleQueryCondition);
RuleQueryListResponse ruleQueryListResponse = new RuleQueryListResponse();
ruleQueryListResponse.setTotalCount(correlationRule.size());
ruleQueryListResponse
.setCorrelationRules(correlationRules2RuleResult4APIs(correlationRule));
return ruleQueryListResponse;
}
private List<RuleResult4API> correlationRules2RuleResult4APIs(
List<CorrelationRule> correlationRules) {
List<RuleResult4API> ruleResult4APIs = new ArrayList<RuleResult4API>();
for (CorrelationRule correlationRule : correlationRules) {
RuleResult4API ruleResult4API = new RuleResult4API();
ruleResult4API.setRuleId(correlationRule.getRid());
ruleResult4API.setRuleName(correlationRule.getName());
ruleResult4API.setDescription(correlationRule.getDescription());
ruleResult4API.setContent(correlationRule.getContent());
ruleResult4API.setCreateTime(correlationRule.getCreateTime());
ruleResult4API.setCreator(correlationRule.getCreator());
ruleResult4API.setUpdateTime(correlationRule.getUpdateTime());
ruleResult4API.setModifier(correlationRule.getModifier());
ruleResult4API.setEnabled(correlationRule.getEnabled());
ruleResult4APIs.add(ruleResult4API);
}
return ruleResult4APIs;
}
private CorrelationDeployRule4Engine correlationRules2DeployRule(
CorrelationRule correlationRule) {
CorrelationDeployRule4Engine correlationDeployRule4Engine = new CorrelationDeployRule4Engine();
correlationDeployRule4Engine.setContent(correlationRule.getContent());
correlationDeployRule4Engine.setEngineId(correlationRule.getEngineID());
return correlationDeployRule4Engine;
}
private CorrelationCheckRule4Engine correlationRules2CheckRule(
CorrelationRule correlationRule) {
CorrelationCheckRule4Engine correlationCheckRule4Engine = new CorrelationCheckRule4Engine();
correlationCheckRule4Engine.setContent(correlationRule.getContent());
return correlationCheckRule4Engine;
}
}
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