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/*******************************************************************************
* ============LICENSE_START==================================================
* * org.onap.dmaap
* * ===========================================================================
* * Copyright © 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====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package org.onap.dmaap.datarouter.provisioning;
import static java.lang.System.exit;
import static java.lang.System.getProperty;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;
import java.util.Timer;
import org.eclipse.jetty.server.Server;
import org.onap.dmaap.datarouter.provisioning.utils.AafPropsUtils;
import org.onap.dmaap.datarouter.provisioning.utils.LogfileLoader;
import org.onap.dmaap.datarouter.provisioning.utils.Poker;
import org.onap.dmaap.datarouter.provisioning.utils.ProvDbUtils;
import org.onap.dmaap.datarouter.provisioning.utils.PurgeLogDirTask;
import org.onap.dmaap.datarouter.provisioning.utils.SynchronizerTask;
/**
* <p>
* A main class which may be used to start the provisioning server with an "embedded" Jetty server. Configuration is
* done via the properties file <i>provserver.properties</i>, which should be in the CLASSPATH. The provisioning server
* may also be packaged with a web.xml and started as a traditional webapp.
* </p>
* <p>
* Most of the work of the provisioning server is carried out within the eight servlets (configured below) that are used
* to handle each of the eight types of requests the server may receive. In addition, there are background threads
* started to perform other tasks:
* </p>
* <ul>
* <li>One background Thread runs the {@link LogfileLoader} in order to process incoming logfiles.
* This Thread is created as a side effect of the first successful POST to the /internal/logs/ servlet.</li>
* <li>One background Thread runs the {@link SynchronizerTask} which is used to periodically
* synchronize the database between active and standby servers.</li>
* <li>One background Thread runs the {@link Poker} which is used to notify the nodes whenever
* provisioning data changes.</li>
* <li>One task is run once a day to run {@link PurgeLogDirTask} which purges older logs from the
* /opt/app/datartr/logs directory.</li>
* </ul>
* <p>
* The provisioning server is stopped by issuing a GET to the URL http://127.0.0.1/internal/halt using <i>curl</i> or
* some other such tool.
* </p>
*
* @author Robert Eby
* @version $Id: Main.java,v 1.12 2014/03/12 19:45:41 eby Exp $
*/
public class ProvRunner {
public static final EELFLogger intlogger = EELFManager.getInstance().getLogger("org.onap.dmaap.datarouter.provisioning.internal");
private static Server provServer;
private static AafPropsUtils aafPropsUtils;
private static Properties provProperties;
private static Boolean tlsEnabled;
/**
* Starts the Data Router Provisioning server.
*
* @param args not used
*/
public static void main(String[] args) {
// Check DB is accessible and contains the expected tables
if (!ProvDbUtils.getInstance().initProvDB()) {
intlogger.error("Data Router Provisioning database init failure. Exiting.");
exit(1);
}
if (Boolean.TRUE.equals(getTlsEnabled())) {
// Set up AAF properties
try {
aafPropsUtils = new AafPropsUtils(new File(getProvProperties().getProperty(
"org.onap.dmaap.datarouter.provserver.aafprops.path",
"/opt/app/osaaf/local/org.onap.dmaap-dr.props")));
} catch (IOException e) {
intlogger.error("NODE0314 Failed to load AAF props. Exiting", e);
exit(1);
}
}
// Daemon to clean up the log directory on a daily basis
Timer rolex = new Timer();
rolex.scheduleAtFixedRate(new PurgeLogDirTask(), 0, 86400000L); // run once per day
try {
// Create and start the Jetty server
provServer = ProvServer.getServerInstance();
intlogger.info("PROV0000 **** DMaaP Data Router Provisioning Server starting....");
provServer.start();
provServer.dumpStdErr();
provServer.join();
intlogger.info("PROV0000 **** DMaaP Data Router Provisioning Server started: " + provServer.getState());
} catch (Exception e) {
intlogger.error(
"PROV0010 **** DMaaP Data Router Provisioning Server failed to start. Exiting: " + e.getMessage(), e);
exit(1);
}
// Start LogfileLoader
LogfileLoader.getLoader();
}
/**
* Stop the Jetty server.
*/
static void shutdown() {
new Thread(() -> {
try {
provServer.stop();
Thread.sleep(5000L);
exit(0);
} catch (Exception e) {
intlogger.error("Exception in Main.shutdown(): " + e.getMessage(), e);
}
});
}
public static Properties getProvProperties() {
if (provProperties == null) {
try (FileInputStream props = new FileInputStream(getProperty(
"org.onap.dmaap.datarouter.provserver.properties",
"/opt/app/datartr/etc/provserver.properties"))) {
provProperties = new Properties();
provProperties.load(props);
} catch (IOException e) {
intlogger.error("Failed to load PROV properties: " + e.getMessage(), e);
exit(1);
}
}
return provProperties;
}
public static AafPropsUtils getAafPropsUtils() {
return aafPropsUtils;
}
public static Boolean getTlsEnabled() {
if (tlsEnabled == null) {
tlsEnabled = Boolean.parseBoolean(getProvProperties()
.getProperty("org.onap.dmaap.datarouter.provserver.tlsenabled", "true"));
}
return tlsEnabled;
}
}
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