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1 package org.jbpm;
2
3 import java.util.Iterator  ;
4 import java.util.Properties ;
5
6 import org.apache.commons.logging.Log;
7 import org.apache.commons.logging.LogFactory;
8 import org.jbpm.instantiation.ClassLoaderUtil;
9
10 public class JbpmConfiguration {
16
17 private JbpmConfiguration() {}
18
19 static Properties properties = null;
20
21 private static Properties getProperties() {
22 if (properties==null) {
23 properties = ClassLoaderUtil.getProperties("jbpm.properties", "org/jbpm");
24
25 Iterator iter = properties.keySet().iterator();
26 while (iter.hasNext()) {
27 String key = (String ) iter.next();
28 log.debug(key+"="+properties.getProperty(key));
29 }
30 }
31 return properties;
32 }
33
34 public static String getString(String key) {
35 return getProperties().getProperty(key);
36 }
37
38 public static String getString( String key, String defaultValue ) {
39 return getProperties().getProperty( key, defaultValue );
40 }
41
42 public static long getLong( String key, long defaultValue ) {
43 long value = defaultValue;
44
45 String valueText = getProperties().getProperty( key );
46 if ( valueText != null ) {
47 try {
48 value = Long.parseLong( valueText );
49 } catch (NumberFormatException e) {
50 throw new RuntimeException ( "jbpm configuration property '" + key + "' is not parsable to a long : '" + valueText + "'", e );
51 }
52 }
53
54 return value;
55 }
56
57 public static boolean getBoolean(String key, boolean defaultValue) {
58 boolean value = defaultValue;
59
60 String valueText = getProperties().getProperty( key );
61 if ( valueText != null ) {
62 try {
63 value = new Boolean ( valueText ).booleanValue();
64 } catch (NumberFormatException e) {
65 throw new RuntimeException ( "jbpm configuration property '" + key + "' is not parsable to a long : '" + valueText + "'", e );
66 }
67 }
68
69 return value;
70 }
71
72 public static Object getObject(String key) {
73 return getObject(key, null);
74 }
75
76 public static Object getObject(String key, Object defaultValue) {
77 Object instance = null;
78 String className = getProperties().getProperty(key);
79 if (className==null) {
80 instance = defaultValue;
81 } else {
82 try {
83 Class clazz = ClassLoaderUtil.loadClass( className );
84 instance = clazz.newInstance();
85 } catch (Exception e) {
86 throw new RuntimeException ( "couldn't instantiate class " + className + " configured in property " + key );
87 }
88 }
89 return instance;
90 }
91
92 private static final Log log = LogFactory.getLog(JbpmConfiguration.class);
93 }
94 |
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