2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with the com.oreilly.servlet library, any library
22 * licensed under the Apache Software License, The Sun (tm) Java Advanced
23 * Imaging library (JAI), The Sun JIMI library (or with modified versions of
24 * the above that use the same license as the above), and distribute linked
25 * combinations including the two. You must obey the GNU General Public
26 * License in all respects for all of the code used other than the above
27 * mentioned libraries. If you modify this file, you may extend this exception
28 * to your version of the file, but you are not obligated to do so. If you do
29 * not wish to do so, delete this exception statement from your version.
34 import multex.Failure;
36 import org.apache.commons.collections.ExtendedProperties;
37 import org.apache.commons.configuration.PropertiesConfiguration;
40 import java.io.FileNotFoundException;
41 import java.io.IOException;
43 import java.util.HashMap;
44 import java.util.Iterator;
47 import javax.servlet.ServletContext;
53 public class MirPropertiesConfiguration extends ExtendedProperties {
54 private static MirPropertiesConfiguration instance;
55 private static ServletContext context;
56 private static String contextPath;
58 //if one of these properties is not present a new
59 //property is added with its default value;
60 private static NeededProperty[] neededWithValue =
62 new NeededProperty("Producer.DocRoot", ""),
63 new NeededProperty("Producer.ImageRoot", ""),
64 new NeededProperty("Producer.Image.Path", ""),
65 new NeededProperty("Producer.Media.Path", ""),
66 new NeededProperty("Producer.RealMedia.Path", ""),
67 new NeededProperty("Producer.Image.IconPath", "")
71 * Constructor for MirPropertiesConfiguration.
73 private MirPropertiesConfiguration(ServletContext ctx, String ctxPath)
75 super(ctx.getRealPath("/WEB-INF/etc/") + "/config.properties",
76 ctx.getRealPath("/WEB-INF/") + "/default.properties");
77 addProperty("Home", ctx.getRealPath("/WEB-INF/") + "/");
81 public static synchronized MirPropertiesConfiguration instance()
82 throws PropertiesConfigExc {
83 if (instance == null) {
84 if (context == null) {
85 throw new MirPropertiesConfiguration.PropertiesConfigExc(
86 "Context was not set");
90 instance = new MirPropertiesConfiguration(context, contextPath);
91 } catch (IOException e) {
101 * @param context The context to set
103 public static void setContext(ServletContext context) {
104 MirPropertiesConfiguration.context = context;
108 * Returns the context.
109 * @return ServletContext
111 public static ServletContext getContext() {
116 * Returns all properties in a Map
119 public Map allSettings() {
120 Iterator iterator = this.getKeys();
121 Map returnMap = new HashMap();
123 while (iterator.hasNext()) {
124 String key = (String) iterator.next();
125 Object o = this.getProperty(key);
131 returnMap.put(key, o);
138 * Returns a String-property concatenated with the home-dir of the
143 public String getStringWithHome(String key) {
144 String returnString = getString(key);
146 if (returnString == null) {
147 returnString = new String();
150 return getString("Home") + returnString;
154 * Checks if one property is missing and adds a default value
156 private void checkMissing() {
157 for (int i = 0; i < neededWithValue.length; i++) {
158 if (super.getProperty(neededWithValue[i].getKey()) == null) {
159 addProperty(neededWithValue[i].getKey(), neededWithValue[i].getValue());
164 public File getFile(String key) throws FileNotFoundException {
165 String path = getStringWithHome(key);
166 File returnFile = new File(path);
168 if (returnFile.exists()) {
171 throw new FileNotFoundException();
176 * @see org.apache.commons.configuration.Configuration#getString(java.lang.String)
178 public String getString(String key) {
179 Object object = getProperty(key);
181 if (object instanceof String) {
182 return (String)object;
184 return object.toString();
192 * @see org.apache.commons.configuration.Configuration#getString(java.lang.String)
194 public Object getProperty(String key) {
195 if (super.getProperty(key) == null) {
199 return super.getProperty(key);
205 public static class PropertiesConfigExc extends Exc {
207 * Constructor for PropertiesConfigExc.
210 public PropertiesConfigExc(String msg) {
218 public static class PropertiesConfigFailure extends Failure {
220 * Constructor for PropertiesConfigExc.
223 public PropertiesConfigFailure(String msg, Throwable cause) {
229 * A Class for properties to be checked
232 private static class NeededProperty {
234 private String _value;
236 public NeededProperty(String key, String value) {
241 public String getKey() {
245 public String getValue() {