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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (c) 2019 Samsung
* ================================================================================
* 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.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.ssl.SSLContextBuilder;
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.impl.PluginStatusBL;
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 final int HEALTH_CHECK_INTERVAL = 5;
private static final int PROBE_INTERVAL = 15;
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);
try {
PluginStatusBL pbl = new PluginStatusBL(buildRestClient());
context.getServletContext().setAttribute(Constants.PLUGIN_BL_COMPONENT, pbl);
} catch (SSLException e) {
log.debug("ERROR: Build rest client failed because ", e);
return;
}
// Health Check service
HealthCheckService hcs = new HealthCheckService(context.getServletContext());
hcs.start(configurationManager.getConfiguration().getHealthCheckIntervalInSeconds(HEALTH_CHECK_INTERVAL));
context.getServletContext().setAttribute(Constants.HEALTH_CHECK_SERVICE_ATTR, hcs);
// Monitoring service
FeMonitoringService fms = new FeMonitoringService(context.getServletContext());
fms.start(configurationManager.getConfiguration().getSystemMonitoring().getProbeIntervalInSeconds(PROBE_INTERVAL));
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);
}
private CloseableHttpClient buildRestClient() throws SSLException {
SSLContextBuilder builder = new SSLContextBuilder();
try {
builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
SSLContext.getDefault(), NoopHostnameVerifier.INSTANCE);
Registry<ConnectionSocketFactory> registry =
RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", new PlainConnectionSocketFactory()).register("https", sslsf)
.build();
PoolingHttpClientConnectionManager cm =
new PoolingHttpClientConnectionManager(registry);
return HttpClients.custom().setSSLSocketFactory(sslsf).setConnectionManager(cm).build();
} catch (NoSuchAlgorithmException | KeyStoreException e) {
throw new SSLException(e);
}
}
}
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