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/*******************************************************************************
* Copyright 2016-2017 ZTE, Inc. and others.
*
* 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.msb.apiroute;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.http.HttpEntity;
import org.onap.msb.apiroute.wrapper.consulextend.Consul;
import org.onap.msb.apiroute.wrapper.consulextend.expose.CheckServiceDataEmptyAndAutoStopWatchFilter;
import org.onap.msb.apiroute.wrapper.consulextend.expose.CheckTagAndAutoStopWatchFilter;
import org.onap.msb.apiroute.wrapper.consulextend.expose.ServiceModifyIndexFilter;
import org.onap.msb.apiroute.wrapper.consulextend.expose.WatchCatalogServicesTask;
import org.onap.msb.apiroute.wrapper.consulextend.expose.WatchServiceHealthTask;
import org.onap.msb.apiroute.wrapper.consulextend.expose.WriteBufferHandler;
import org.onap.msb.apiroute.wrapper.queue.ServiceConsumer;
import org.onap.msb.apiroute.wrapper.queue.ServiceData;
import org.onap.msb.apiroute.wrapper.queue.ServiceListConsumer;
import org.onap.msb.apiroute.wrapper.util.RouteUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SyncDataManager {
private static Consul consul;
private static WatchCatalogServicesTask serviceListWatchTask;
private final static Map<String, WatchServiceHealthTask> serviceWatchTaskMap = new ConcurrentHashMap<String, WatchServiceHealthTask>();
private static final Logger LOGGER = LoggerFactory
.getLogger(SyncDataManager.class);
private SyncDataManager() {
}
public static void initSyncTask(final String ip, final int port) {
consul = Consul.builder().withHostAndPort(ip, port).build();
startWatchServiceList();
startQueueConsumer();
}
public static void startWatchServiceList() {
LOGGER.info("===========start to WatchServiceList============");
// create service list watch task
serviceListWatchTask = new WatchCatalogServicesTask(
consul.catalogClient(), RouteUtil.WATCH_SECOND);
// first,write data to serviceListQueue buffer.
// second,async thread will read data from serviceListQueue buffer.
serviceListWatchTask.addHandler(new WriteBufferHandler<HttpEntity>(
ServiceData.DataType.service_list));
// start watch
serviceListWatchTask.startWatch();
}
public static void startQueueConsumer() {
LOGGER.info("===========start to QueueConsumer Thread============");
// start ServiceListConsumer
new Thread(new ServiceListConsumer(), "ServiceListConsumerThread")
.start();
// start Service Consumer
int serviceQueneNum = RouteUtil.SERVICE_DATA_QUEUE_NUM;
for (int i = 0; i < serviceQueneNum; i++) {
new Thread(new ServiceConsumer(i), "ServiceConsumerThread" + i)
.start();
}
}
public static void startWatchService(final String serviceName) {
LOGGER.info("===========start to Watch Service[" + serviceName
+ "]============");
// create service watch task
WatchServiceHealthTask serviceWatchTask = new WatchServiceHealthTask(
consul.healthClient(), serviceName, RouteUtil.WATCH_SECOND);
// 1.service Data Empty filter
serviceWatchTask
.addFilter(new CheckServiceDataEmptyAndAutoStopWatchFilter(
serviceName));
// 2.service change filter
serviceWatchTask.addFilter(new ServiceModifyIndexFilter());
// 3.apigateway tag filter:check tag and auto stop watch
serviceWatchTask.addFilter(new CheckTagAndAutoStopWatchFilter(
serviceName));
// start watch
serviceWatchTask.startWatch();
// save
serviceWatchTaskMap.put(serviceName, serviceWatchTask);
}
public static void stopWatchServiceList() {
if (serviceListWatchTask != null) {
serviceListWatchTask.removeAllFilter();
serviceListWatchTask.removeAllHandler();
serviceListWatchTask.stopWatch();
}
}
public static void stopWatchService(String serviceName) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("stop " + serviceName + " service watch!");
}
WatchServiceHealthTask watchTask = serviceWatchTaskMap.get(serviceName);
if (watchTask != null) {
watchTask.removeAllFilter();
watchTask.removeAllHandler();
watchTask.stopWatch();
}
serviceWatchTaskMap.remove(serviceName);
}
public static boolean resetIndex(String serviceName) {
WatchServiceHealthTask watchTask = serviceWatchTaskMap.get(serviceName);
if (watchTask != null) {
return watchTask.resetIndex();
}
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("reset modify index.did not find:" + serviceName);
}
return false;
}
}
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