Java tutorial
/* * 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.ngrinder.agent.controller; import org.apache.commons.lang.StringUtils; import org.ngrinder.common.controller.BaseController; import org.ngrinder.common.controller.RestAPI; import org.ngrinder.monitor.controller.model.SystemDataModel; import org.ngrinder.monitor.share.domain.SystemInfo; import org.ngrinder.perftest.service.monitor.MonitorInfoStore; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpEntity; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import java.util.concurrent.*; import static org.ngrinder.common.util.Preconditions.checkNotNull; /** * Controller which gets the target host system information. * * @since 3.2 */ @Controller @RequestMapping("/monitor") public class MonitorManagerController extends BaseController { @Autowired private MonitorInfoStore monitorInfoStore; /** * Get the target's monitor info page for the given IP. * * @param model model * @param ip target host IP * @return monitor/info */ @RequestMapping("/info") public String getMonitor(ModelMap model, @RequestParam String ip) { String[] addresses = StringUtils.split(ip, ":"); if (addresses.length > 0) { ip = addresses[addresses.length - 1]; } model.put("targetIP", ip); return "monitor/info"; } /** * Get the target's monitored data by the given IP. * * @param ip target host IP * @return json message containing the target's monitoring data. */ @RequestMapping("/state") @RestAPI public HttpEntity<String> getRealTimeMonitorData(@RequestParam final String ip) throws InterruptedException, ExecutionException, TimeoutException { Future<SystemInfo> submit = Executors.newCachedThreadPool().submit(new Callable<SystemInfo>() { @Override public SystemInfo call() { return monitorInfoStore.getSystemInfo(ip, getConfig().getMonitorPort()); } }); SystemInfo systemInfo = checkNotNull(submit.get(2, TimeUnit.SECONDS), "Monitoring data is not available."); return toJsonHttpEntity(new SystemDataModel(systemInfo, "UNKNOWN")); } /** * Close the monitor JXM connection to the given target. * * @param ip target host IP * @return success if succeeded. */ @RequestMapping("/close") public HttpEntity<String> closeMonitorConnection(@RequestParam String ip) { monitorInfoStore.close(ip); return successJsonHttpEntity(); } }