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1
6 package org.logicalcobwebs.proxool.configuration;
7
8 import org.apache.commons.logging.Log;
9 import org.apache.commons.logging.LogFactory;
10 import org.logicalcobwebs.proxool.ProxoolConstants;
11 import org.logicalcobwebs.proxool.ProxoolException;
12 import org.logicalcobwebs.proxool.ProxoolFacade;
13
14 import java.io.FileInputStream  ;
15 import java.io.IOException ;
16 import java.util.HashMap ;
17 import java.util.Iterator ;
18 import java.util.Map ;
19 import java.util.Properties ;
20
21
78 public class PropertyConfigurator {
79 private static final Log LOG = LogFactory.getLog(PropertyConfigurator.class);
80
81 protected static final String PREFIX = "jdbc";
82
83 private static final String DOT = ".";
84
85 private static final String EXAMPLE_FORMAT = PREFIX + "*" + DOT + "*";
86
87
92 public static void configure(String filename) throws ProxoolException {
93 Properties properties = new Properties ();
94 try {
95 properties.load(new FileInputStream (filename));
96 } catch (IOException e) {
97 throw new ProxoolException("Couldn't load property file " + filename);
98 }
99 configure(properties);
100 }
101
102
107 public static void configure(Properties properties) throws ProxoolException {
108 final Map propertiesMap = new HashMap ();
109 final Iterator allPropertyKeysIterator = properties.keySet().iterator();
110 Properties proxoolProperties = null;
111
112 while (allPropertyKeysIterator.hasNext()) {
113 String key = (String ) allPropertyKeysIterator.next();
114 String value = properties.getProperty(key);
115
116 if (key.startsWith(PREFIX)) {
117 int a = key.indexOf(DOT);
118 if (a == -1) {
119 throw new ProxoolException("Property " + key + " must be of the format " + EXAMPLE_FORMAT);
120 }
121 final String tag = key.substring(0, a);
122 final String name = key.substring(a + 1);
123 proxoolProperties = (Properties ) propertiesMap.get(tag);
124 if (proxoolProperties == null) {
125 proxoolProperties = new Properties ();
126 propertiesMap.put(tag, proxoolProperties);
127 }
128 proxoolProperties.put(name, value);
129 }
130 }
131
132 final Iterator tags = propertiesMap.keySet().iterator();
133 while (tags.hasNext()) {
134 proxoolProperties = (Properties ) propertiesMap.get(tags.next());
135 final String driverClass = proxoolProperties.getProperty(ProxoolConstants.DRIVER_CLASS_PROPERTY);
139 final String driverUrl = proxoolProperties.getProperty(ProxoolConstants.DRIVER_URL_PROPERTY);
140 if (driverClass == null || driverUrl == null) {
141 throw new ProxoolException("You must define the " + ProxoolConstants.DRIVER_CLASS_PROPERTY + " and the "
142 + ProxoolConstants.DRIVER_URL_PROPERTY + ".");
143 }
144 final String alias = proxoolProperties.getProperty(ProxoolConstants.ALIAS_PROPERTY);
145
146 StringBuffer url = new StringBuffer ();
148 url.append("proxool");
149 if (alias != null) {
150 url.append(ProxoolConstants.ALIAS_DELIMITER);
151 url.append(alias);
152 proxoolProperties.remove(ProxoolConstants.ALIAS_PROPERTY);
153 }
154 url.append(ProxoolConstants.URL_DELIMITER);
155 url.append(driverClass);
156 proxoolProperties.remove(ProxoolConstants.DRIVER_CLASS_PROPERTY);
157 url.append(ProxoolConstants.URL_DELIMITER);
158 url.append(driverUrl);
159 proxoolProperties.remove(ProxoolConstants.DRIVER_URL_PROPERTY);
160 if (LOG.isDebugEnabled()) {
161 LOG.debug("Created url: " + url);
162 }
163
164 ProxoolFacade.registerConnectionPool(url.toString(), proxoolProperties);
165 }
166 }
167
168 }
169
170
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