| 1 |
package dk.daoas.daoadresseservice;
|
| 2 |
|
| 3 |
import java.io.FileInputStream;
|
| 4 |
import java.io.IOException;
|
| 5 |
import java.io.InputStreamReader;
|
| 6 |
import java.io.Reader;
|
| 7 |
import java.nio.charset.Charset;
|
| 8 |
import java.util.Properties;
|
| 9 |
|
| 10 |
import javax.servlet.ServletContext;
|
| 11 |
import javax.servlet.ServletContextEvent;
|
| 12 |
import javax.servlet.ServletContextListener;
|
| 13 |
import javax.servlet.ServletRegistration;
|
| 14 |
import javax.servlet.annotation.WebListener;
|
| 15 |
|
| 16 |
import org.apache.commons.lang3.SystemUtils;
|
| 17 |
|
| 18 |
import com.jcabi.manifests.Manifests;
|
| 19 |
import com.jcabi.manifests.ServletMfs;
|
| 20 |
|
| 21 |
import dk.daoas.daoadresseservice.admin.ServiceConfig;
|
| 22 |
import dk.thoerup.circuitbreaker.CircuitBreaker;
|
| 23 |
import dk.thoerup.circuitbreaker.CircuitBreakerManager;
|
| 24 |
import dk.thoerup.circuitbreaker.statistics.AccountingStatistics;
|
| 25 |
import dk.thoerup.circuitbreaker.web.CircuitBreakerServletBase;
|
| 26 |
import dk.thoerup.webconfig.ConfigServlet;
|
| 27 |
import dk.thoerup.webconfig.PropertiesConfigLoader;
|
| 28 |
|
| 29 |
/**
|
| 30 |
* Application Lifecycle Listener implementation class ContextListener
|
| 31 |
*
|
| 32 |
*/
|
| 33 |
@WebListener
|
| 34 |
public class ContextListener implements ServletContextListener {
|
| 35 |
|
| 36 |
|
| 37 |
|
| 38 |
|
| 39 |
public ContextListener() {
|
| 40 |
}
|
| 41 |
|
| 42 |
public void contextDestroyed(ServletContextEvent ctxtEvt) {
|
| 43 |
}
|
| 44 |
|
| 45 |
|
| 46 |
@Override
|
| 47 |
public void contextInitialized(ServletContextEvent ctxtEvt) {
|
| 48 |
System.out.println("Starting DAO Context");
|
| 49 |
|
| 50 |
|
| 51 |
|
| 52 |
ServletContext ctxt = ctxtEvt.getServletContext();
|
| 53 |
|
| 54 |
ServiceConfig conf = null;
|
| 55 |
try {
|
| 56 |
conf = initConfig(ctxt);
|
| 57 |
} catch (IOException e) {
|
| 58 |
System.out.println("Error loading config " + e.getMessage());
|
| 59 |
throw new RuntimeException(e);
|
| 60 |
}
|
| 61 |
|
| 62 |
initDataLoader(ctxt, conf);
|
| 63 |
|
| 64 |
initCircuitBreakers(ctxt, conf);
|
| 65 |
|
| 66 |
|
| 67 |
try {
|
| 68 |
Manifests.DEFAULT.append(new ServletMfs(ctxt));
|
| 69 |
} catch (Exception e) {
|
| 70 |
System.out.println("Error loading config " + e.getMessage());
|
| 71 |
}
|
| 72 |
|
| 73 |
System.out.println("DAO Context done");
|
| 74 |
}
|
| 75 |
|
| 76 |
|
| 77 |
|
| 78 |
|
| 79 |
private ServiceConfig initConfig(ServletContext ctxt) throws IOException {
|
| 80 |
|
| 81 |
final String CONF_FILE_NAME = "daoadresseservice.conf";
|
| 82 |
|
| 83 |
|
| 84 |
ServiceConfig conf = new ServiceConfig();
|
| 85 |
|
| 86 |
String file = null;
|
| 87 |
if (SystemUtils.IS_OS_WINDOWS) {
|
| 88 |
file = "C:\\" + CONF_FILE_NAME;
|
| 89 |
} else {
|
| 90 |
file = "/etc/" + CONF_FILE_NAME;
|
| 91 |
}
|
| 92 |
|
| 93 |
Properties propsFile = new Properties();
|
| 94 |
try ( Reader reader = new InputStreamReader(new FileInputStream(file), Charset.forName("UTF-8")) ) {
|
| 95 |
propsFile.load(reader);
|
| 96 |
}
|
| 97 |
|
| 98 |
|
| 99 |
new PropertiesConfigLoader(propsFile).loadConfig(conf);
|
| 100 |
|
| 101 |
|
| 102 |
ctxt.setAttribute("config", conf);
|
| 103 |
|
| 104 |
// /////////////////////////////////////
|
| 105 |
ConfigServlet servlet = new ConfigServlet();
|
| 106 |
servlet.setConfigObject( conf );
|
| 107 |
ServletRegistration.Dynamic dynconf = ctxt.addServlet("webconfig", servlet );
|
| 108 |
dynconf.addMapping("/ConfigServlet");
|
| 109 |
|
| 110 |
return conf;
|
| 111 |
}
|
| 112 |
|
| 113 |
private void initDataLoader(ServletContext ctxt, ServiceConfig conf) {
|
| 114 |
DataLoader load = new DataLoader(ctxt,conf);
|
| 115 |
ctxt.setAttribute("dataloader", load);
|
| 116 |
load.doLoad( "(re) deploy" );
|
| 117 |
}
|
| 118 |
|
| 119 |
private void initCircuitBreakers(ServletContext ctxt, ServiceConfig conf) {
|
| 120 |
CircuitBreakerManager mgr = CircuitBreakerManager.getManager();
|
| 121 |
|
| 122 |
CircuitBreaker osm = new CircuitBreaker("osm", conf);
|
| 123 |
osm.setStatistics( new AccountingStatistics() );
|
| 124 |
mgr.addCircuitBreaker( osm );
|
| 125 |
|
| 126 |
CircuitBreaker google = new CircuitBreaker("google", conf);
|
| 127 |
google.setStatistics( new AccountingStatistics() );
|
| 128 |
mgr.addCircuitBreaker( google );
|
| 129 |
|
| 130 |
|
| 131 |
//
|
| 132 |
CircuitBreakerServletBase servlet = new CircuitBreakerServletBase();
|
| 133 |
ServletRegistration.Dynamic dynconf = ctxt.addServlet("circuitbreaker", servlet);
|
| 134 |
dynconf.addMapping("/CircuitBreakerServlet");
|
| 135 |
dynconf.setInitParameter("readonly", "1");
|
| 136 |
|
| 137 |
}
|
| 138 |
|
| 139 |
|
| 140 |
}
|
Parent Directory
| 
Revision Log