1 | package org.greenstone.gsdl3.util;
|
---|
2 |
|
---|
3 | import java.util.Properties;
|
---|
4 | import java.io.File;
|
---|
5 | import java.io.InputStream;
|
---|
6 |
|
---|
7 | import org.apache.log4j.*;
|
---|
8 |
|
---|
9 | /** holds some global properties for the application. Read from a properties file */
|
---|
10 | public class GlobalProperties {
|
---|
11 |
|
---|
12 |
|
---|
13 | static Logger logger = Logger.getLogger(org.greenstone.gsdl3.util.GlobalProperties.class.getName());
|
---|
14 | private static Properties properties = null;
|
---|
15 | private static String properties_filename = "global.properties";
|
---|
16 | private static String gsdl3_home = null;
|
---|
17 | private static String gsdl3_web_address = null;
|
---|
18 |
|
---|
19 | // Note, that if the servlet is reloadable, then it is reloaded each time the file is changed.
|
---|
20 | static {
|
---|
21 | //load in the properties
|
---|
22 | properties = new Properties();
|
---|
23 | reload();
|
---|
24 | }
|
---|
25 |
|
---|
26 | /** get the value of the property 'key'. returns null if not found */
|
---|
27 | public static String getProperty(String key) {
|
---|
28 | return properties.getProperty(key);
|
---|
29 | }
|
---|
30 |
|
---|
31 | /** get the value of the property 'key'.
|
---|
32 | * returns default_value if not found */
|
---|
33 | public static String getProperty(String key, String default_value) {
|
---|
34 | return properties.getProperty(key, default_value);
|
---|
35 | }
|
---|
36 |
|
---|
37 | /** some special ones */
|
---|
38 | public static String getGSDL3Home() {
|
---|
39 | return gsdl3_home;
|
---|
40 | }
|
---|
41 |
|
---|
42 | public static String getGSDL3WebAddress() {
|
---|
43 | return gsdl3_web_address;
|
---|
44 | }
|
---|
45 |
|
---|
46 | public static void reload() {
|
---|
47 | try {
|
---|
48 | InputStream in = Class.forName("org.greenstone.gsdl3.util.GlobalProperties").getClassLoader().getResourceAsStream(properties_filename);
|
---|
49 | if (in != null) {
|
---|
50 | logger.error("loading global properties");
|
---|
51 | properties.load(in);
|
---|
52 | in.close();
|
---|
53 | } else {
|
---|
54 | logger.error("couldn't load global properties!");
|
---|
55 | }
|
---|
56 | gsdl3_home = properties.getProperty("gsdl3.home");
|
---|
57 | // make sure the path separators are correct
|
---|
58 | File gs3_file = new File(gsdl3_home);
|
---|
59 | gsdl3_home = gs3_file.getPath();
|
---|
60 | gsdl3_web_address = "http://"+ properties.getProperty("tomcat.server")+":"+ properties.getProperty("tomcat.port")+"/"+properties.getProperty("tomcat.context");
|
---|
61 | } catch (Exception e) {
|
---|
62 | logger.error("Exception trying to reload global.properties: "+e);
|
---|
63 | }
|
---|
64 |
|
---|
65 | }
|
---|
66 | }
|
---|