1 files changed, 85 insertions, 0 deletions
diff --git a/catalog-fe/src/main/java/org/openecomp/sdc/fe/listen/FEAppContextListener.java b/catalog-fe/src/main/java/org/openecomp/sdc/fe/listen/FEAppContextListener.java
new file mode 100644
index 0000000000..b132c46866
--- /dev/null
+++ b/catalog-fe/src/main/java/org/openecomp/sdc/fe/listen/FEAppContextListener.java
@@ -0,0 +1,85 @@
+/*-
+ * ============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.fe.listen;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+import javax.servlet.ServletContextEvent;
+import javax.servlet.ServletContextListener;
+
+import org.openecomp.sdc.common.api.Constants;
+import org.openecomp.sdc.common.impl.ExternalConfiguration;
+import org.openecomp.sdc.common.listener.AppContextListener;
+import org.openecomp.sdc.fe.config.ConfigurationManager;
+import org.openecomp.sdc.fe.monitoring.FeMonitoringService;
+import org.openecomp.sdc.fe.servlets.HealthCheckService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class FEAppContextListener extends AppContextListener implements ServletContextListener {
+
+	private static Logger log = LoggerFactory.getLogger(FEAppContextListener.class.getName());
+
+	public void contextInitialized(ServletContextEvent context) {
+
+		super.contextInitialized(context);
+
+		ConfigurationManager configurationManager = new ConfigurationManager(
+				ExternalConfiguration.getConfigurationSource());
+		log.debug("loading configuration from configDir:{} appName:{}", ExternalConfiguration.getConfigDir(),
+				ExternalConfiguration.getAppName());
+		context.getServletContext().setAttribute(Constants.CONFIGURATION_MANAGER_ATTR, configurationManager);
+
+		// Health Check service
+		HealthCheckService hcs = new HealthCheckService(context.getServletContext());
+		hcs.start(configurationManager.getConfiguration().getHealthCheckIntervalInSeconds(5));
+		context.getServletContext().setAttribute(Constants.HEALTH_CHECK_SERVICE_ATTR, hcs);
+
+		// Monitoring service
+		FeMonitoringService fms = new FeMonitoringService(context.getServletContext());
+		fms.start(configurationManager.getConfiguration().getSystemMonitoring().getProbeIntervalInSeconds(15));
+
+		if (configurationManager.getConfiguration() == null) {
+			log.debug("ERROR: configuration was not properly loaded");
+			return;
+		}
+
+		ExecutorService executorPool = Executors
+				.newFixedThreadPool(configurationManager.getConfiguration().getThreadpoolSize());
+		context.getServletContext().setAttribute(Constants.THREAD_EXECUTOR_ATTR, executorPool);
+
+		log.debug("After executing {}", this.getClass());
+	}
+
+	public void contextDestroyed(ServletContextEvent context) {
+
+		ExecutorService executorPool = (ExecutorService) context.getServletContext()
+				.getAttribute(Constants.THREAD_EXECUTOR_ATTR);
+		if (executorPool != null) {
+			executorPool.shutdown();
+		}
+
+		super.contextDestroyed(context);
+
+	}
+
+}