1 | /*
|
---|
2 | * GlobalProperties.java
|
---|
3 | * Copyright (C) 2008 New Zealand Digital Library, http://www.nzdl.org
|
---|
4 | *
|
---|
5 | * This program is free software; you can redistribute it and/or modify
|
---|
6 | * it under the terms of the GNU General Public License as published by
|
---|
7 | * the Free Software Foundation; either version 2 of the License, or
|
---|
8 | * (at your option) any later version.
|
---|
9 | *
|
---|
10 | * This program is distributed in the hope that it will be useful,
|
---|
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
13 | * GNU General Public License for more details.
|
---|
14 | *
|
---|
15 | * You should have received a copy of the GNU General Public License
|
---|
16 | * along with this program; if not, write to the Free Software
|
---|
17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
18 | */
|
---|
19 | package org.greenstone.util;
|
---|
20 |
|
---|
21 | import java.util.Properties;
|
---|
22 | import java.io.File;
|
---|
23 | import java.io.InputStream;
|
---|
24 |
|
---|
25 | import org.apache.log4j.*;
|
---|
26 |
|
---|
27 | /**
|
---|
28 | * holds some global properties for the application. Read from a properties file
|
---|
29 | */
|
---|
30 | public class GlobalProperties
|
---|
31 | {
|
---|
32 |
|
---|
33 | static Logger logger = Logger.getLogger(org.greenstone.util.GlobalProperties.class.getName());
|
---|
34 | private static Properties properties = null;
|
---|
35 | private static String properties_filename = "global.properties";
|
---|
36 | private static String gsdl3_home = null;
|
---|
37 | private static String gsdl3_web_address = null;
|
---|
38 | private static String full_gsdl3_web_address = null;
|
---|
39 |
|
---|
40 | // Note, that if the servlet is reloadable, then it is reloaded each time the file is changed.
|
---|
41 | static
|
---|
42 | {
|
---|
43 | //load in the properties
|
---|
44 | properties = new Properties();
|
---|
45 | reload();
|
---|
46 | }
|
---|
47 |
|
---|
48 | /** get the value of the property 'key'. returns null if not found */
|
---|
49 | public static String getProperty(String key)
|
---|
50 | {
|
---|
51 | return properties.getProperty(key);
|
---|
52 | }
|
---|
53 |
|
---|
54 | /**
|
---|
55 | * get the value of the property 'key'. returns default_value if not found
|
---|
56 | */
|
---|
57 | public static String getProperty(String key, String default_value)
|
---|
58 | {
|
---|
59 | return properties.getProperty(key, default_value);
|
---|
60 | }
|
---|
61 |
|
---|
62 | /** some special ones */
|
---|
63 | public static String getGSDL3Home()
|
---|
64 | {
|
---|
65 | return gsdl3_home;
|
---|
66 | }
|
---|
67 |
|
---|
68 | public static String getGS2Build()
|
---|
69 | {
|
---|
70 | return gsdl3_home + File.separator + ".." + File.separator + "gs2build";
|
---|
71 | }
|
---|
72 |
|
---|
73 | public static String getGSDL3WebAddress()
|
---|
74 | {
|
---|
75 | return gsdl3_web_address;
|
---|
76 | }
|
---|
77 |
|
---|
78 | public static String getFullGSDL3WebAddress()
|
---|
79 | {
|
---|
80 | return full_gsdl3_web_address;
|
---|
81 | }
|
---|
82 |
|
---|
83 | public static void reload()
|
---|
84 | {
|
---|
85 | try
|
---|
86 | {
|
---|
87 |
|
---|
88 | InputStream in = Class.forName("org.greenstone.util.GlobalProperties").getClassLoader().getResourceAsStream(properties_filename);
|
---|
89 | if (in != null)
|
---|
90 | {
|
---|
91 | logger.debug("loading global properties");
|
---|
92 | properties.load(in);
|
---|
93 | in.close();
|
---|
94 | }
|
---|
95 | else
|
---|
96 | {
|
---|
97 | logger.error("couldn't load global properties!");
|
---|
98 | }
|
---|
99 | gsdl3_home = properties.getProperty("gsdl3.home");
|
---|
100 | // make sure the path separators are correct
|
---|
101 | File gs3_file = new File(gsdl3_home);
|
---|
102 | gsdl3_home = gs3_file.getPath();
|
---|
103 |
|
---|
104 | //build the gsdl3 web address, in a way resilient to errors and ommisions in global.properties, simplifying where possible
|
---|
105 | //aiming for a string with no trailing slash, eg "http://localhost:8080/greenstone3" or "http://www.mygreenstonelibrary.com"
|
---|
106 | String protocolSpecifier = null, hostSpecifier = null, portSpecifier = null, contextSpecifier = null;
|
---|
107 |
|
---|
108 | //protocol
|
---|
109 | if (properties.getProperty("tomcat.protocol") == null || properties.getProperty("tomcat.protocol").equals(""))
|
---|
110 | {
|
---|
111 | protocolSpecifier = "http://";
|
---|
112 | }
|
---|
113 | else
|
---|
114 | {
|
---|
115 | if (properties.getProperty("tomcat.protocol").endsWith("://"))
|
---|
116 | {
|
---|
117 | protocolSpecifier = properties.getProperty("tomcat.protocol");
|
---|
118 | }
|
---|
119 | else
|
---|
120 | {
|
---|
121 | protocolSpecifier = properties.getProperty("tomcat.protocol") + "://";
|
---|
122 | }
|
---|
123 | }
|
---|
124 |
|
---|
125 | //hostname
|
---|
126 | if (properties.getProperty("tomcat.server") == null)
|
---|
127 | {
|
---|
128 | hostSpecifier = "localhost";
|
---|
129 | }
|
---|
130 | else
|
---|
131 | {
|
---|
132 | hostSpecifier = properties.getProperty("tomcat.server");
|
---|
133 | while (hostSpecifier.endsWith("/"))
|
---|
134 | {
|
---|
135 | hostSpecifier = hostSpecifier.substring(0, hostSpecifier.length() - 1);
|
---|
136 | }
|
---|
137 | }
|
---|
138 |
|
---|
139 | //port
|
---|
140 | if (properties.getProperty("tomcat.port") == null || properties.getProperty("tomcat.port").equals("") || (protocolSpecifier.equals("http://") && properties.getProperty("tomcat.port").equals("80")) || (protocolSpecifier.equals("https://") && properties.getProperty("tomcat.port").equals("443")))
|
---|
141 | {
|
---|
142 | portSpecifier = "";
|
---|
143 | }
|
---|
144 | else
|
---|
145 | {
|
---|
146 | portSpecifier = ":" + properties.getProperty("tomcat.port");
|
---|
147 | }
|
---|
148 |
|
---|
149 | //context path
|
---|
150 | if (properties.getProperty("tomcat.context") == null || properties.getProperty("tomcat.context").equals("") || properties.getProperty("tomcat.context").equals("/"))
|
---|
151 | {
|
---|
152 | contextSpecifier = "";
|
---|
153 | }
|
---|
154 | else
|
---|
155 | {
|
---|
156 | contextSpecifier = properties.getProperty("tomcat.context");
|
---|
157 | if (!contextSpecifier.startsWith("/"))
|
---|
158 | {
|
---|
159 | contextSpecifier = "/" + contextSpecifier;
|
---|
160 | }
|
---|
161 | }
|
---|
162 |
|
---|
163 | //string it all together
|
---|
164 | full_gsdl3_web_address = protocolSpecifier + hostSpecifier + portSpecifier + contextSpecifier;
|
---|
165 | gsdl3_web_address = contextSpecifier;
|
---|
166 | }
|
---|
167 | catch (Exception e)
|
---|
168 | {
|
---|
169 | logger.error("Exception trying to reload global.properties: " + e);
|
---|
170 | }
|
---|
171 | }
|
---|
172 | }
|
---|