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/*-
* ================================================================================
* ECOMP Portal
* ================================================================================
* Copyright (C) 2017 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.
* ================================================================================
*/
package org.openecomp.portalapp.portal.service;
import java.util.List;
import org.openecomp.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.springframework.stereotype.Component;
import com.ecwid.consul.ConsulException;
import com.orbitz.consul.Consul;
import com.orbitz.consul.HealthClient;
import com.orbitz.consul.model.health.ServiceHealth;
@Component
public class ConsulHealthServiceImpl implements ConsulHealthService {
private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(ConsulHealthServiceImpl.class);
@Override
public String getServiceLocation(String service, String fallbackPortOnLocalHost) {
List<ServiceHealth> nodes = null;
try {
Consul consul = Consul.builder().build();
HealthClient healthClient = consul.healthClient();
nodes = healthClient.getHealthyServiceInstances(service).getResponse();
} catch (Exception e) {
String localFallbackServiceLocation = "localhost:" + fallbackPortOnLocalHost;
logger.debug(EELFLoggerDelegate.debugLogger,
" problem getting nodes for service {1}. Defaulting to {2}. Exception: {3}", service,
localFallbackServiceLocation, e.getMessage());
logger.error(EELFLoggerDelegate.errorLogger,
" problem getting nodes for service {1}. Defaulting to {2}. Exception: {3}", service,
localFallbackServiceLocation, e);
return localFallbackServiceLocation;
}
if (nodes == null || nodes.size() == 0) {
logger.debug(EELFLoggerDelegate.debugLogger, "No healthy node found in the consul cluster running service " + service
+ ". Defaulting to localhost");
return "localhost:" + fallbackPortOnLocalHost;
} else {
String locationFromConsul;
ServiceHealth node = nodes.get(0);
locationFromConsul = node.getNode().getNode() + ":" + node.getService().getPort();
logger.debug(EELFLoggerDelegate.debugLogger,
"Found healthy service location using consul - returning location " + locationFromConsul);
// if locationFromConsul is null for some reason (very unlikely at
// this point), default to localhost
if (null == locationFromConsul || "".equals(locationFromConsul)) {
logger.debug(EELFLoggerDelegate.debugLogger,
"Couldn't get location from consul for service " + service + ". Defaulting to localhost");
return "localhost:" + fallbackPortOnLocalHost;
} else {
logger.debug(EELFLoggerDelegate.debugLogger, "Found service location from consul for service " + service
+ ". Location is " + locationFromConsul);
return locationFromConsul;
}
}
}
@Override
public List<ServiceHealth> getAllHealthyNodes(String service) throws ConsulException {
Consul consul = Consul.builder().build();
HealthClient healthClient = consul.healthClient();
return healthClient.getHealthyServiceInstances(service).getResponse();
}
@Override
public List<ServiceHealth> getAllNodes(String service) {
Consul consul = Consul.builder().build();
HealthClient healthClient = consul.healthClient();
return healthClient.getAllServiceInstances(service).getResponse();
}
}
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