daoas/adressevedligehold/ContextListener.java

package dk.daoas.adressevedligehold;

/*
 * Denne Serivce bruger log4j og det kræver at tomcat leder efter log4j
 * Tomcat 7 <7.0.43 ignores all JAR files named log4j*.jar, which prevents this feature from working. 
 * This has been fixed in Tomcat 7.0.43, Tomcat 8, and later. 
 * In Tomcat 7 <7.0.43 you will need to change catalina.properties and remove "log4j*.jar" from the jarsToSkip property. 
 * You may need to do something similar on other containers if they skip scanning Log4j JAR files. 
 * 
 */

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.Charset;
import java.util.Properties;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletRegistration;
import javax.servlet.annotation.WebListener;

import org.apache.commons.lang3.SystemUtils;

import dk.thoerup.webconfig.ConfigServlet;
import dk.thoerup.webconfig.PropertiesConfigLoader;

/**
 * Application Lifecycle Listener implementation class ContextListener
 *
 */
@WebListener
public class ContextListener implements ServletContextListener {
        
        

    public void contextDestroyed(ServletContextEvent ctxtEvt)  { 
    }

    @Override
    public void contextInitialized(ServletContextEvent ctxtEvt)  {
        System.out.println("Starting DAO Context");
        
        
        
        ServletContext ctxt = ctxtEvt.getServletContext();
        
        try {
                initConfig(ctxt);
        } catch (IOException e) {
                System.out.println("Error loading config " + e.getMessage());                   
                throw new RuntimeException(e);
        }
        
        
        System.out.println("DAO Context done");
    }
    

        
    
    private ServiceConfig initConfig(ServletContext ctxt) throws IOException {
        
        final String CONF_FILE_NAME = "daoadressevedligehold.conf";
        
        
        ServiceConfig conf = ServiceConfig.getInstance();
        
        String file = null;
        if (SystemUtils.IS_OS_WINDOWS) {
                file = "C:\\" + CONF_FILE_NAME;
        } else {
                file = "/etc/" + CONF_FILE_NAME;
        }
    
        Properties propsFile = new Properties();
        try ( Reader reader = new InputStreamReader(new FileInputStream(file), Charset.forName("UTF-8")) ) {
                propsFile.load(reader); 
        }
        
        
        new PropertiesConfigLoader(propsFile).loadConfig(conf);
        
        
        ctxt.setAttribute("config", conf);
        
        // /////////////////////////////////////
        ConfigServlet servlet = new ConfigServlet();
        servlet.setConfigObject( conf );
        ServletRegistration.Dynamic dynconf = ctxt.addServlet("webconfig", servlet );
        dynconf.addMapping("/ConfigServlet");
        
        return conf;            
    }
    
        
}
1	package dk.daoas.adressevedligehold;
2
3	/*
4	* Denne Serivce bruger log4j og det kræver at tomcat leder efter log4j
5	* Tomcat 7 <7.0.43 ignores all JAR files named log4j*.jar, which prevents this feature from working.
6	* This has been fixed in Tomcat 7.0.43, Tomcat 8, and later.
7	* In Tomcat 7 <7.0.43 you will need to change catalina.properties and remove "log4j*.jar" from the jarsToSkip property.
8	* You may need to do something similar on other containers if they skip scanning Log4j JAR files.
9	*
10	*/
11
12	import java.io.FileInputStream;
13	import java.io.IOException;
14	import java.io.InputStreamReader;
15	import java.io.Reader;
16	import java.nio.charset.Charset;
17	import java.util.Properties;
18
19	import javax.servlet.ServletContext;
20	import javax.servlet.ServletContextEvent;
21	import javax.servlet.ServletContextListener;
22	import javax.servlet.ServletRegistration;
23	import javax.servlet.annotation.WebListener;
24
25	import org.apache.commons.lang3.SystemUtils;
26
27	import dk.thoerup.webconfig.ConfigServlet;
28	import dk.thoerup.webconfig.PropertiesConfigLoader;
29
30	/**
31	* Application Lifecycle Listener implementation class ContextListener
32	*
33	*/
34	@WebListener
35	public class ContextListener implements ServletContextListener {
36
37
38
39	public void contextDestroyed(ServletContextEvent ctxtEvt) {
40	}
41
42	@Override
43	public void contextInitialized(ServletContextEvent ctxtEvt) {
44	System.out.println("Starting DAO Context");
45
46
47
48	ServletContext ctxt = ctxtEvt.getServletContext();
49
50	try {
51	initConfig(ctxt);
52	} catch (IOException e) {
53	System.out.println("Error loading config " + e.getMessage());
54	throw new RuntimeException(e);
55	}
56
57
58	System.out.println("DAO Context done");
59	}
60
61
62
63
64	private ServiceConfig initConfig(ServletContext ctxt) throws IOException {
65
66	final String CONF_FILE_NAME = "daoadressevedligehold.conf";
67
68
69	ServiceConfig conf = ServiceConfig.getInstance();
70
71	String file = null;
72	if (SystemUtils.IS_OS_WINDOWS) {
73	file = "C:\\" + CONF_FILE_NAME;
74	} else {
75	file = "/etc/" + CONF_FILE_NAME;
76	}
77
78	Properties propsFile = new Properties();
79	try ( Reader reader = new InputStreamReader(new FileInputStream(file), Charset.forName("UTF-8")) ) {
80	propsFile.load(reader);
81	}
82
83
84	new PropertiesConfigLoader(propsFile).loadConfig(conf);
85
86
87	ctxt.setAttribute("config", conf);
88
89	// /////////////////////////////////////
90	ConfigServlet servlet = new ConfigServlet();
91	servlet.setConfigObject( conf );
92	ServletRegistration.Dynamic dynconf = ctxt.addServlet("webconfig", servlet );
93	dynconf.addMapping("/ConfigServlet");
94
95	return conf;
96	}
97
98
99	}