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/*
* ============LICENSE_START==============================================
* Copyright (c) 2019 AT&T Intellectual Property.
* =======================================================================
* 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.
* ============LICENSE_END=================================================
*
*/
package org.onap.optf.cmso.optimizer.clients.topology;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.ArrayList;
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.Invocation;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import org.onap.observations.Observation;
import org.onap.optf.cmso.common.BasicAuthenticatorFilter;
import org.onap.optf.cmso.common.PropertiesManagement;
import org.onap.optf.cmso.common.exceptions.CmsoException;
import org.onap.optf.cmso.optimizer.clients.common.models.ElementCriteria;
import org.onap.optf.cmso.optimizer.clients.topology.models.TopologyPolicyInfo;
import org.onap.optf.cmso.optimizer.clients.topology.models.TopologyRequest;
import org.onap.optf.cmso.optimizer.clients.topology.models.TopologyResponse;
import org.onap.optf.cmso.optimizer.clients.topology.models.TopologyResponse.TopologyRequestStatus;
import org.onap.optf.cmso.optimizer.common.LogMessages;
import org.onap.optf.cmso.optimizer.filters.CmsoClientFilters;
import org.onap.optf.cmso.optimizer.model.Request;
import org.onap.optf.cmso.optimizer.model.Topology;
import org.onap.optf.cmso.optimizer.model.dao.RequestDao;
import org.onap.optf.cmso.optimizer.model.dao.TopologyDao;
import org.onap.optf.cmso.optimizer.service.rs.models.ElementInfo;
import org.onap.optf.cmso.optimizer.service.rs.models.OptimizerRequest;
import org.onap.optf.cmso.optimizer.service.rs.models.PolicyInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;
/**
* The Class TopologyClient.
*/
@Component
public class TopologyClient {
private static EELFLogger debug = EELFManager.getInstance().getDebugLogger();
@Autowired
Environment env;
@Autowired
PropertiesManagement pm;
@Autowired
RequestDao requestDao;
@Autowired
TopologyDao topologyDao;
/**
* Make request.
*
* @param request the request
* @param topology the topology
* @return the topology response
*/
public TopologyResponse makeRequest(Request request, Topology topology) {
Integer maxAttempts = env.getProperty("cmso.optimizer.maxAttempts", Integer.class, 20);
TopologyResponse topologyResponse = new TopologyResponse();
if (topology.getTopologyRetries() >= maxAttempts) {
topologyResponse.setStatus(TopologyRequestStatus.FAILED);
topologyResponse.setErrorMessage(LogMessages.EXCEEDED_RETRY_LIMIT.format(
"Topology", maxAttempts.toString()));
Observation.report(LogMessages.EXCEEDED_RETRY_LIMIT, "Topology", maxAttempts.toString());
return topologyResponse;
}
TopologyRequest topologyRequest = new TopologyRequest();
ObjectMapper om = new ObjectMapper();
String originalRequest = request.getRequest();
OptimizerRequest optimizerRequest = null;;
try {
optimizerRequest = om.readValue(originalRequest, OptimizerRequest.class);
} catch (Exception e) {
topologyResponse.setStatus(TopologyRequestStatus.FAILED);
topologyResponse.setErrorMessage(LogMessages.UNEXPECTED_EXCEPTION.format(e.getMessage()));
Observation.report(LogMessages.UNEXPECTED_EXCEPTION, e, e.getMessage());
return topologyResponse;
}
topologyRequest = new TopologyRequest();
topologyRequest.setRequestId(optimizerRequest.getRequestId());
topologyRequest.setCommonData(optimizerRequest.getCommonData());
topologyRequest.setElements(getElementCriteria(optimizerRequest));
topologyRequest.setPolicies(getPolicies(optimizerRequest));
try {
topologyResponse = initiateTopology(topologyRequest, topology, request);
} catch (Exception e) {
topologyResponse.setStatus(TopologyRequestStatus.FAILED);
topologyResponse.setErrorMessage(LogMessages.UNEXPECTED_EXCEPTION.format(e.getMessage()));
Observation.report(LogMessages.UNEXPECTED_EXCEPTION, e, e.getMessage());
}
return topologyResponse;
}
private List<TopologyPolicyInfo> getPolicies(OptimizerRequest optimizerRequest) {
List<TopologyPolicyInfo> list = new ArrayList<>();
for (PolicyInfo optInfo : optimizerRequest.getPolicies()) {
TopologyPolicyInfo topInfo = new TopologyPolicyInfo();
topInfo.setPolicyDescription(optInfo.getPolicyDescription());
topInfo.setPolicyName(optInfo.getPolicyName());
topInfo.setPolicyModifiers(optInfo.getPolicyModifiers());
list.add(topInfo);
}
return list;
}
private List<ElementCriteria> getElementCriteria(OptimizerRequest optimizerRequest) {
List<ElementCriteria> list = new ArrayList<>();
for (ElementInfo info : optimizerRequest.getElements()) {
ElementCriteria criteria = new ElementCriteria();
criteria.setElementId(info.getElementId());
criteria.setElementData(info.getElementData());
list.add(criteria);
}
return list;
}
private TopologyResponse initiateTopology(TopologyRequest request, Topology topology, Request requestRow)
throws CmsoException, JsonProcessingException {
String url = env.getProperty("cmso.topology.create.request.url");
String username = env.getProperty("mechid.user");
String password = pm.getProperty("mechid.pass", "");
Client client = ClientBuilder.newClient();
client.register(new BasicAuthenticatorFilter(username, password));
client.register(new CmsoClientFilters());
debug.debug("topology url / user: " + url + " / " + username);
debug.debug("topology Request: " + new ObjectMapper().writeValueAsString(request));
Observation.report(LogMessages.TOPOLOGY_REQUEST, "Begin", request.getRequestId(), url);
topology.setTopologyStart(System.currentTimeMillis());
WebTarget webTarget = client.target(url);
Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON);
Response response = invocationBuilder.post(Entity.json(request));
Observation.report(LogMessages.TOPOLOGY_REQUEST, "End", request.getRequestId(), url);
TopologyResponse topologyResponse = null;
switch (response.getStatus()) {
case 202:
debug.debug("Successfully scheduled asynchronous topology: " + request.getRequestId());
break;
case 200:
debug.debug("Successfully retrieved topology: " + request.getRequestId());
topologyResponse = processTopologyResponse(request, response, topology, requestRow);
break;
default:
throw new CmsoException(Status.INTERNAL_SERVER_ERROR, LogMessages.UNEXPECTED_RESPONSE, url,
response.getStatusInfo().toString());
}
return topologyResponse;
}
private TopologyResponse processTopologyResponse(TopologyRequest request, Response response, Topology topology,
Request requestRow) {
String responseString = response.readEntity(String.class);
TopologyResponse topologyResponse = null;
try {
topologyResponse = new ObjectMapper().readValue(responseString, TopologyResponse.class);
topology.setTopology(responseString);
} catch (Exception e) {
Observation.report(LogMessages.UNEXPECTED_EXCEPTION, e, e.getMessage());
topologyResponse = new TopologyResponse();
topologyResponse.setRequestId(request.getRequestId());
topologyResponse.setStatus(TopologyRequestStatus.FAILED);
topologyResponse.setErrorMessage(e.getMessage());
}
return topologyResponse;
}
}
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