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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.dcae;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.List;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import lombok.extern.slf4j.Slf4j;
import org.glassfish.jersey.client.ClientConfig;
import org.onap.holmes.common.config.MicroServiceConfig;
import org.onap.holmes.common.dcae.DcaeConfigurationQuery;
import org.onap.holmes.common.dcae.entity.DcaeConfigurations;
import org.onap.holmes.common.dcae.entity.Rule;
import org.onap.holmes.common.dcae.utils.DcaeConfigurationParser;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.rulemgt.bean.request.RuleCreateRequest;
import org.onap.holmes.rulemgt.bean.response.RuleQueryListResponse;
import org.onap.holmes.rulemgt.bean.response.RuleResult4API;
@Slf4j
public class DcaeConfigurationPolling implements Runnable {
public static long POLLING_PERIOD = 10 * 1000L;
private String hostname;
private String url = "http://127.0.0.1:9101/api/holmes-rule-mgmt/v1/rule";
public DcaeConfigurationPolling(String hostname) {
this.hostname = hostname;
}
@Override
public void run() {
DcaeConfigurations dcaeConfigurations = null;
try {
dcaeConfigurations = DcaeConfigurationQuery.getDcaeConfigurations(hostname);
} catch (CorrelationException e) {
log.error("Failed to fetch DCAE configurations. " + e.getMessage());
}
if (dcaeConfigurations != null) {
RuleQueryListResponse ruleQueryListResponse = getAllCorrelationRules();
List<RuleResult4API> ruleResult4APIs = ruleQueryListResponse.getCorrelationRules();
deleteAllCorrelationRules(ruleResult4APIs);
try {
addAllCorrelationRules(dcaeConfigurations);
} catch (CorrelationException e) {
log.error("Failed to add rules. " + e.getMessage());
}
}
}
private RuleQueryListResponse getAllCorrelationRules() {
Client client = ClientBuilder.newClient(new ClientConfig());
WebTarget webTarget = client.target(url);
return webTarget.request("application/json").get()
.readEntity(RuleQueryListResponse.class);
}
private void addAllCorrelationRules(DcaeConfigurations dcaeConfigurations) throws CorrelationException {
for (Rule rule : dcaeConfigurations.getDefaultRules()) {
RuleCreateRequest ruleCreateRequest = getRuleCreateRequest(rule);
Client client = ClientBuilder.newClient(new ClientConfig());
ObjectMapper mapper = new ObjectMapper();
String content = null;
try {
content = mapper.writeValueAsString(ruleCreateRequest);
} catch (JsonProcessingException e) {
throw new CorrelationException("Failed to convert the message object to a json string.", e);
}
WebTarget webTarget = client.target(url);
webTarget.request(MediaType.APPLICATION_JSON)
.put(Entity.entity(content, MediaType.APPLICATION_JSON));
}
}
private void deleteAllCorrelationRules(List<RuleResult4API> ruleResult4APIs){
ruleResult4APIs.forEach(correlationRule ->{
Client client = ClientBuilder.newClient(new ClientConfig());
WebTarget webTarget = client.target(url + "/" + correlationRule.getRuleId());
webTarget.request(MediaType.APPLICATION_JSON).delete();
});
}
private RuleCreateRequest getRuleCreateRequest(Rule rule) {
RuleCreateRequest ruleCreateRequest = new RuleCreateRequest();
ruleCreateRequest.setLoopControlName(rule.getLoopControlName());
ruleCreateRequest.setRuleName(rule.getName());
ruleCreateRequest.setContent(rule.getContents());
ruleCreateRequest.setDescription("");
ruleCreateRequest.setEnabled(1);
return ruleCreateRequest;
}
}
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