public static DataSource pooledDataSource(
DataSource unpooledDataSource, String configName, Map overrideProps) throws SQLException {
try {
WrapperConnectionPoolDataSource wcpds = new WrapperConnectionPoolDataSource(configName);
wcpds.setNestedDataSource(unpooledDataSource);
if (overrideProps != null)
BeansUtils.overwriteAccessiblePropertiesFromMap(
overrideProps, wcpds, false, null, true, MLevel.WARNING, MLevel.WARNING, false);
PoolBackedDataSource nascent_pbds = new PoolBackedDataSource(configName);
nascent_pbds.setConnectionPoolDataSource(wcpds);
if (overrideProps != null)
BeansUtils.overwriteAccessiblePropertiesFromMap(
overrideProps, nascent_pbds, false, null, true, MLevel.WARNING, MLevel.WARNING, false);
return nascent_pbds;
}
// catch ( PropertyVetoException e )
// {
// e.printStackTrace();
// PropertyChangeEvent evt = e.getPropertyChangeEvent();
// throw new SQLException("Illegal value attempted for property " + evt.getPropertyName() + ":
// " + evt.getNewValue());
// }
catch (Exception e) {
// e.printStackTrace();
SQLException sqle =
SqlUtils.toSQLException("Exception configuring pool-backed DataSource: " + e, e);
if (Debug.DEBUG
&& Debug.TRACE >= Debug.TRACE_MED
&& logger.isLoggable(MLevel.FINE)
&& e != sqle) logger.log(MLevel.FINE, "Converted exception to throwable SQLException", e);
throw sqle;
}
}
/**
* Creates a pooled version of an unpooled DataSource using configuration information supplied
* explicitly by a {@link com.mchange.v2.c3p0.PoolConfig}.
*
* @return a DataSource that can be cast to a {@link PooledDataSource} if you are interested in
* pool statistics
* @deprecated if you want to set properties programmatically, please construct a
* ComboPooledDataSource and set its properties rather than using PoolConfig
*/
public static DataSource pooledDataSource(DataSource unpooledDataSource, PoolConfig pcfg)
throws SQLException {
try {
WrapperConnectionPoolDataSource wcpds = new WrapperConnectionPoolDataSource();
wcpds.setNestedDataSource(unpooledDataSource);
// set PoolConfig info -- WrapperConnectionPoolDataSource properties
BeansUtils.overwriteSpecificAccessibleProperties(
pcfg, wcpds, WRAPPER_CXN_POOL_DATA_SOURCE_OVERWRITE_PROPS);
PoolBackedDataSource nascent_pbds = new PoolBackedDataSource();
nascent_pbds.setConnectionPoolDataSource(wcpds);
BeansUtils.overwriteSpecificAccessibleProperties(
pcfg, nascent_pbds, POOL_BACKED_DATA_SOURCE_OVERWRITE_PROPS);
return nascent_pbds;
}
// catch ( PropertyVetoException e )
// {
// e.printStackTrace();
// PropertyChangeEvent evt = e.getPropertyChangeEvent();
// throw new SQLException("Illegal value attempted for property " + evt.getPropertyName() + ":
// " + evt.getNewValue());
// }
catch (Exception e) {
// e.printStackTrace();
SQLException sqle =
SqlUtils.toSQLException("Exception configuring pool-backed DataSource: " + e, e);
if (Debug.DEBUG
&& Debug.TRACE >= Debug.TRACE_MED
&& logger.isLoggable(MLevel.FINE)
&& e != sqle) logger.log(MLevel.FINE, "Converted exception to throwable SQLException", e);
throw sqle;
}
}
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());
}
}