public static Connection getConnection(Connection c) throws Exception {
Connection conn = c;
if (c != null && !c.isClosed()) {
return c;
} else {
Class clazz = Class.forName("org.luciddb.jdbc.LucidDbLocalDriver");
LucidDbLocalDriver driver = (LucidDbLocalDriver) clazz.newInstance();
String urlPrefix = driver.getUrlPrefix();
Properties props = new Properties();
props.setProperty("user", "sa");
props.setProperty("password", "");
props.setProperty("requireExistingEngine", "true");
c = DriverManager.getConnection(urlPrefix, props);
}
return c;
}
/**
* This method provides a readable classname if it's an array, i.e. either the classname of the
* component type for arrays of java reference types or the name of the primitive type for arrays
* of java primitive types. Otherwise, it returns null.
*/
public static String getArrayClassName(String name) {
String className = null;
if (name.startsWith("[")) {
int index = name.lastIndexOf("[");
className = name.substring(index, name.length());
if (className.startsWith("[L")) {
className = className.substring(2, className.length() - 1);
} else {
try {
Class<?> c = Class.forName(className);
className = c.getComponentType().getName();
} catch (ClassNotFoundException e) {
// Should not happen
throw new IllegalArgumentException("Bad class name " + name, e);
}
}
}
return className;
}
private Object unmarshall(Object value) {
if (value instanceof ObjectName) {
ObjectName name = (ObjectName) value;
return new MBean(_server, name);
} else if (value instanceof ObjectName[]) {
ObjectName[] names = (ObjectName[]) value;
MBean[] mbeans = new MBean[names.length];
for (int i = 0; i < names.length; i++) mbeans[i] = new MBean(_server, names[i]);
return mbeans;
} else if (value instanceof CompositeData) {
CompositeData compositeValue = (CompositeData) value;
CompositeType type = compositeValue.getCompositeType();
if (type != null) {
String typeName = type.getTypeName();
try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
Class typeClass = Class.forName(typeName, false, loader);
Method from = typeClass.getMethod("from", new Class[] {CompositeData.class});
if (from != null) return from.invoke(null, compositeValue);
} catch (Exception e) {
log.log(Level.FINER, e.toString(), e);
}
}
return new CompositeDataBean(compositeValue);
} else return value;
}
/**
* This method returns the class matching the name className. It's used to cater for the primitive
* types.
*/
public static Class<?> getClass(String className) throws ClassNotFoundException {
Class<?> c;
if ((c = primitiveMap.get(className)) != null) return c;
return Class.forName(className);
}