static {
classNamesToConnectionTesters.put(
C3P0Defaults.connectionTesterClassName(), C3P0Defaults.connectionTester());
String userManagementCoordinator = C3P0ConfigUtils.getPropsFileConfigProperty(MC_PARAM);
if (userManagementCoordinator != null) {
try {
mc = (ManagementCoordinator) Class.forName(userManagementCoordinator).newInstance();
} catch (Exception e) {
if (logger.isLoggable(MLevel.WARNING))
logger.log(
MLevel.WARNING,
"Could not instantiate user-specified ManagementCoordinator "
+ userManagementCoordinator
+ ". Using NullManagementCoordinator (c3p0 JMX management disabled!)",
e);
mc = new NullManagementCoordinator();
}
} else {
try {
Class.forName("java.lang.management.ManagementFactory");
mc =
(ManagementCoordinator)
Class.forName("com.mchange.v2.c3p0.management.ActiveManagementCoordinator")
.newInstance();
} catch (Exception e) {
if (logger.isLoggable(MLevel.INFO))
logger.log(
MLevel.INFO, "jdk1.5 management interfaces unavailable... JMX support disabled.", e);
mc = new NullManagementCoordinator();
}
}
}
public static ConnectionTester getConnectionTester(String className) {
try {
ConnectionTester out = (ConnectionTester) classNamesToConnectionTesters.get(className);
if (out == null) {
out = (ConnectionTester) Class.forName(className).newInstance();
classNamesToConnectionTesters.put(className, out);
}
return out;
} catch (Exception e) {
if (logger.isLoggable(MLevel.WARNING))
logger.log(
MLevel.WARNING,
"Could not create for find ConnectionTester with class name '"
+ className
+ "'. Using default.",
e);
return C3P0Defaults.connectionTester();
}
}
public static ConnectionCustomizer getConnectionCustomizer(String className) throws SQLException {
if (className == null) return null;
else {
try {
ConnectionCustomizer out =
(ConnectionCustomizer) classNamesToConnectionCustomizers.get(className);
if (out == null) {
out = (ConnectionCustomizer) Class.forName(className).newInstance();
classNamesToConnectionCustomizers.put(className, out);
}
return out;
} catch (Exception e) {
if (logger.isLoggable(MLevel.WARNING))
logger.log(
MLevel.WARNING,
"Could not create for find ConnectionCustomizer with class name '" + className + "'.",
e);
throw SqlUtils.toSQLException(e);
}
}
}
public Reference createReference(Object bean) throws NamingException {
try {
BeanInfo bi = Introspector.getBeanInfo(bean.getClass());
PropertyDescriptor[] pds = bi.getPropertyDescriptors();
List refAddrs = new ArrayList();
String factoryClassLocation = defaultFactoryClassLocation;
boolean using_ref_props = referenceProperties.size() > 0;
// we only include this so that on dereference we are not surprised to find some properties
// missing
if (using_ref_props)
refAddrs.add(
new BinaryRefAddr(REF_PROPS_KEY, SerializableUtils.toByteArray(referenceProperties)));
for (int i = 0, len = pds.length; i < len; ++i) {
PropertyDescriptor pd = pds[i];
String propertyName = pd.getName();
// System.err.println("Making Reference: " + propertyName);
if (using_ref_props && !referenceProperties.contains(propertyName)) {
// System.err.println("Not a ref_prop -- continuing.");
continue;
}
Class propertyType = pd.getPropertyType();
Method getter = pd.getReadMethod();
Method setter = pd.getWriteMethod();
if (getter != null
&& setter != null) // only use properties that are both readable and writable
{
Object val = getter.invoke(bean, EMPTY_ARGS);
// System.err.println( "val: " + val );
if (propertyName.equals("factoryClassLocation")) {
if (String.class != propertyType)
throw new NamingException(
this.getClass().getName()
+ " requires a factoryClassLocation property to be a string, "
+ propertyType.getName()
+ " is not valid.");
factoryClassLocation = (String) val;
}
if (val == null) {
RefAddr addMe = new BinaryRefAddr(propertyName, NULL_TOKEN_BYTES);
refAddrs.add(addMe);
} else if (Coerce.canCoerce(propertyType)) {
RefAddr addMe = new StringRefAddr(propertyName, String.valueOf(val));
refAddrs.add(addMe);
} else // other Object properties
{
RefAddr addMe = null;
PropertyEditor pe = BeansUtils.findPropertyEditor(pd);
if (pe != null) {
pe.setValue(val);
String textValue = pe.getAsText();
if (textValue != null) addMe = new StringRefAddr(propertyName, textValue);
}
if (addMe == null) // property editor approach failed
addMe =
new BinaryRefAddr(
propertyName,
SerializableUtils.toByteArray(
val, indirector, IndirectPolicy.INDIRECT_ON_EXCEPTION));
refAddrs.add(addMe);
}
} else {
// System.err.println(this.getClass().getName() +
// ": Skipping " + propertyName + " because it is " + (setter == null ?
// "read-only." : "write-only."));
if (logger.isLoggable(MLevel.WARNING))
logger.warning(
this.getClass().getName()
+ ": Skipping "
+ propertyName
+ " because it is "
+ (setter == null ? "read-only." : "write-only."));
}
}
Reference out =
new Reference(bean.getClass().getName(), factoryClassName, factoryClassLocation);
for (Iterator ii = refAddrs.iterator(); ii.hasNext(); ) out.add((RefAddr) ii.next());
return out;
} catch (Exception e) {
// e.printStackTrace();
if (Debug.DEBUG && logger.isLoggable(MLevel.FINE))
logger.log(MLevel.FINE, "Exception trying to create Reference.", e);
throw new NamingException("Could not create reference from bean: " + e.toString());
}
}
/** @deprecated use or rewrite in terms of ReflectUtils.findProxyConstructor() */
private static Constructor createProxyConstructor(Class intfc) throws NoSuchMethodException {
Class[] proxyInterfaces = new Class[] {intfc};
Class proxyCl =
Proxy.getProxyClass(C3P0PooledConnection.class.getClassLoader(), proxyInterfaces);
return proxyCl.getConstructor(PROXY_CTOR_ARGS);
}
