diff options
Diffstat (limited to 'common-app-api/src/main/java/org/openecomp/sdc/be/monitoring/BeMonitoringService.java')
-rw-r--r-- | common-app-api/src/main/java/org/openecomp/sdc/be/monitoring/BeMonitoringService.java | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/common-app-api/src/main/java/org/openecomp/sdc/be/monitoring/BeMonitoringService.java b/common-app-api/src/main/java/org/openecomp/sdc/be/monitoring/BeMonitoringService.java new file mode 100644 index 0000000000..ac7391d8cc --- /dev/null +++ b/common-app-api/src/main/java/org/openecomp/sdc/be/monitoring/BeMonitoringService.java @@ -0,0 +1,140 @@ +/*- + * ============LICENSE_START======================================================= + * SDC + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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.openecomp.sdc.be.monitoring; + +import java.io.IOException; +import java.util.concurrent.Executors; +import java.util.concurrent.ScheduledExecutorService; +import java.util.concurrent.ThreadFactory; +import java.util.concurrent.TimeUnit; + +import javax.servlet.ServletContext; +import javax.ws.rs.core.HttpHeaders; +import javax.ws.rs.core.MediaType; + +import org.apache.http.HttpEntity; +import org.apache.http.HttpStatus; +import org.apache.http.client.config.RequestConfig; +import org.apache.http.client.methods.CloseableHttpResponse; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.entity.StringEntity; +import org.apache.http.impl.client.CloseableHttpClient; +import org.apache.http.impl.client.HttpClientBuilder; +import org.openecomp.sdc.be.config.Configuration; +import org.openecomp.sdc.be.config.ConfigurationManager; +import org.openecomp.sdc.common.api.Constants; +import org.openecomp.sdc.common.monitoring.MonitoringEvent; +import org.openecomp.sdc.common.monitoring.MonitoringMetricsFetcher; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.gson.Gson; +import com.google.gson.GsonBuilder; + +public class BeMonitoringService { + + private static final String URL = "%s://%s:%s/sdc2/rest/monitoring"; + private static Logger monitoringLogger = LoggerFactory.getLogger("asdc.be.monitoring.service"); + private static Logger log = LoggerFactory.getLogger(BeMonitoringService.class.getName()); + private static Gson gson = new GsonBuilder().setPrettyPrinting().create(); + + private class MonitoringScheduledTask implements Runnable { + @Override + public void run() { + monitoringLogger.trace("Executing BE Monitoring Task - Start"); + MonitoringEvent monitoringMetrics = MonitoringMetricsFetcher.getInstance().getMonitoringMetrics(); + processMonitoringEvent(monitoringMetrics); + monitoringLogger.trace("Executing BE Monitoring Task - Status = {}", monitoringMetrics.toString()); + } + } + + /** + * This executor will execute the Monitoring task. + */ + ScheduledExecutorService monitoringExecutor = Executors.newSingleThreadScheduledExecutor(new ThreadFactory() { + @Override + public Thread newThread(Runnable r) { + return new Thread(r, "BE-Monitoring-Thread"); + } + }); + private ServletContext context; + + public BeMonitoringService(ServletContext context) { + this.context = context; + } + + public void start(int interval) { + Configuration config = ((ConfigurationManager) context.getAttribute(Constants.CONFIGURATION_MANAGER_ATTR)) + .getConfiguration(); + if (config.getSystemMonitoring().getEnabled()) { + log.info("BE monitoring service is enabled, interval is {} seconds", interval); + this.monitoringExecutor.scheduleAtFixedRate(new MonitoringScheduledTask(), 0, interval, TimeUnit.SECONDS); + } else { + log.info("BE monitoring service is disabled"); + } + } + + private void processMonitoringEvent(MonitoringEvent monitoringMetrics) { + CloseableHttpClient httpClient = null; + try { + Configuration config = ((ConfigurationManager) context.getAttribute(Constants.CONFIGURATION_MANAGER_ATTR)) + .getConfiguration(); + String redirectedUrl = String.format(URL, config.getBeProtocol(), config.getBeFqdn(), + config.getBeHttpPort()); + httpClient = getHttpClient(config); + HttpPost httpPost = new HttpPost(redirectedUrl); + String monitoringMetricsJson = gson.toJson(monitoringMetrics); + HttpEntity myEntity = new StringEntity(monitoringMetricsJson); + httpPost.setEntity(myEntity); + httpPost.setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON); + int beResponseStatus; + CloseableHttpResponse beResponse; + try { + beResponse = httpClient.execute(httpPost); + beResponseStatus = beResponse.getStatusLine().getStatusCode(); + if (beResponseStatus != HttpStatus.SC_OK) { + monitoringLogger.error("Unexpected HTTP response from BE : {}", beResponseStatus); + } + } catch (Exception e) { + monitoringLogger.error("Monitoring error when trying to connect to BE", e); + } + } catch (Exception e) { + monitoringLogger.error("Unexpected monitoring error", e); + } finally { + if (httpClient != null) { + try { + httpClient.close(); + } catch (IOException e) { + } + } + } + } + + private CloseableHttpClient getHttpClient(Configuration config) { + int timeout = 3000; + RequestConfig.Builder requestBuilder = RequestConfig.custom(); + requestBuilder.setConnectTimeout(timeout).setConnectionRequestTimeout(timeout).setSocketTimeout(timeout); + + HttpClientBuilder builder = HttpClientBuilder.create(); + builder.setDefaultRequestConfig(requestBuilder.build()); + return builder.build(); + } +} |