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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.onap.holmes.rulemgt.resources;
import com.codahale.metrics.annotation.Timed;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import io.swagger.annotations.SwaggerDefinition;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import lombok.extern.slf4j.Slf4j;
import net.sf.json.JSONObject;
import org.jvnet.hk2.annotations.Service;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.common.utils.ExceptionUtil;
import org.onap.holmes.common.utils.GsonUtil;
import org.onap.holmes.common.utils.LanguageUtil;
import org.onap.holmes.common.utils.UserUtil;
import org.onap.holmes.rulemgt.bean.request.RuleCreateRequest;
import org.onap.holmes.rulemgt.bean.request.RuleDeleteRequest;
import org.onap.holmes.rulemgt.bean.request.RuleQueryCondition;
import org.onap.holmes.rulemgt.bean.request.RuleUpdateRequest;
import org.onap.holmes.rulemgt.bean.response.RuleAddAndUpdateResponse;
import org.onap.holmes.rulemgt.bean.response.RuleQueryListResponse;
import org.onap.holmes.rulemgt.bean.response.RuleResult4API;
import org.onap.holmes.rulemgt.constant.RuleMgtConstant;
import org.onap.holmes.rulemgt.wrapper.RuleMgtWrapper;
@Service
@SwaggerDefinition
@Path("/rule")
@Api(tags = {"Holmes Rule Management"})
@Produces(MediaType.APPLICATION_JSON)
@Slf4j
public class RuleMgtResources {
@Inject
private RuleMgtWrapper ruleMgtWrapper;
@PUT
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(value = "Save a rule into the database; deploy it to the Drools engine if it is enabled.",
response = RuleAddAndUpdateResponse.class)
@Timed
public RuleAddAndUpdateResponse addCorrelationRule(@Context HttpServletRequest request,
@ApiParam(value = "The request entity of the HTTP call, which comprises \"ruleName\"(required), "
+ "\"loopControlName\"(required), \"content\"(required), \"enabled\"(required) "
+ "and \"description\"(optional)", required = true)
RuleCreateRequest ruleCreateRequest) {
Locale locale = LanguageUtil.getLocale(request);
RuleAddAndUpdateResponse ruleChangeResponse;
try {
ruleChangeResponse = ruleMgtWrapper
.addCorrelationRule(UserUtil.getUserName(request), ruleCreateRequest);
log.info("create rule:" + ruleCreateRequest.getRuleName() + " success.");
return ruleChangeResponse;
} catch (CorrelationException e) {
log.error("create rule:" + ruleCreateRequest.getRuleName() + " failed", e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
}
@POST
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(value = "Update an existing rule; deploy it to the Drools engine if it is enabled.", response = RuleAddAndUpdateResponse.class)
@Timed
public RuleAddAndUpdateResponse updateCorrelationRule(@Context HttpServletRequest request,
@ApiParam(value = "The request entity of the HTTP call, which comprises \"ruleId\"(required), "
+ "\"content\"(required), \"enabled\"(required) and \"description\"(optional)", required = true)
RuleUpdateRequest ruleUpdateRequest) {
Locale locale = LanguageUtil.getLocale(request);
RuleAddAndUpdateResponse ruleChangeResponse;
try {
ruleChangeResponse = ruleMgtWrapper.updateCorrelationRule(UserUtil.getUserName(request), ruleUpdateRequest);
log.info("update rule:" + ruleUpdateRequest.getRuleId() + " successful");
return ruleChangeResponse;
} catch (CorrelationException e) {
log.error("update rule:" + ruleUpdateRequest.getContent() + " failed", e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
}
@DELETE
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(value = "Remove a rule from Holmes.")
@Timed
@Path("/{ruleid}")
public boolean deleteCorrelationRule(@Context HttpServletRequest request,
@PathParam("ruleid") String ruleId) {
Locale locale = LanguageUtil.getLocale(request);
try {
ruleMgtWrapper.deleteCorrelationRule(new RuleDeleteRequest(ruleId));
log.info("delete rule:" + ruleId + " successful");
return true;
} catch (CorrelationException e) {
log.error("delete rule:" + ruleId + " failed", e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
}
@GET
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(value = "Query rules using certain criteria.", response = RuleQueryListResponse.class)
@Timed
public RuleQueryListResponse getCorrelationRules(@Context HttpServletRequest request,
@ApiParam(value = "A JSON string used as a query parameter, which comprises \"ruleid\"(optional), "
+ "\"rulename\"(optional), \"creator\"(optional), "
+ "\"modifier\"(optional) and \"enabled\"(optional). E.g. {\"ruleid\":\"rule_1484727187317\"}",
required = false) @QueryParam("queryrequest") String ruleQueryRequest) {
Locale locale = LanguageUtil.getLocale(request);
RuleQueryListResponse ruleQueryListResponse;
RuleQueryCondition ruleQueryCondition = getRuleQueryCondition(ruleQueryRequest, request);
try {
ruleQueryListResponse = ruleMgtWrapper
.getCorrelationRuleByCondition(ruleQueryCondition);
log.info("query rule successful by condition:" + JSONObject.fromObject(ruleQueryCondition));
return ruleQueryListResponse;
} catch (CorrelationException e) {
log.error("query rule failed,cause query condition conversion failure", e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
}
private RuleQueryCondition getRuleQueryCondition(String queryRequest,
HttpServletRequest request) {
Locale locale = LanguageUtil.getLocale(request);
RuleQueryCondition ruleQueryCondition = GsonUtil.jsonToBean(queryRequest, RuleQueryCondition.class);
if (queryRequest == null) {
if(ruleQueryCondition==null){
ruleQueryCondition = new RuleQueryCondition();
}
ruleQueryCondition.setEnabled(RuleMgtConstant.STATUS_RULE_ALL);
} else if (queryRequest.indexOf("enabled") == -1) {
ruleQueryCondition.setEnabled(RuleMgtConstant.STATUS_RULE_ALL);
}
return ruleQueryCondition;
}
}
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