void ensureOkay() throws SQLException {
if (physicalConnection == null)
throw new SQLException(
invalidatingException == null
? "Connection is closed or broken."
: "Connection is broken. Invalidating Exception: "
+ invalidatingException.toString());
}
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());
}
}
public C3P0Config findConfig() throws Exception {
C3P0Config out;
HashMap flatDefaults = C3P0ConfigUtils.extractHardcodedC3P0Defaults();
// this includes System properties, but we have to check for System properties
// again, since we want system properties to override unspecified user, default-config
// properties in the XML
flatDefaults.putAll(C3P0ConfigUtils.extractC3P0PropertiesResources());
String cfgFile = C3P0Config.getPropsFileConfigProperty(XML_CFG_FILE_KEY);
if (cfgFile == null) {
C3P0Config xmlConfig = C3P0ConfigXmlUtils.extractXmlConfigFromDefaultResource();
if (xmlConfig != null) {
insertDefaultsUnderNascentConfig(flatDefaults, xmlConfig);
out = xmlConfig;
mbOverrideWarning("resource", C3P0ConfigXmlUtils.XML_CONFIG_RSRC_PATH);
} else out = C3P0ConfigUtils.configFromFlatDefaults(flatDefaults);
} else {
cfgFile = cfgFile.trim();
InputStream is = null;
try {
if (cfgFile.startsWith(CLASSLOADER_RESOURCE_PREFIX)) {
ClassLoader cl = this.getClass().getClassLoader();
String rsrcPath = cfgFile.substring(CLASSLOADER_RESOURCE_PREFIX.length());
// eliminate leading slash because ClassLoader.getResource
// is always absolute and does not expect a leading slash
if (rsrcPath.startsWith("/")) rsrcPath = rsrcPath.substring(1);
is = cl.getResourceAsStream(rsrcPath);
if (is == null)
throw new FileNotFoundException(
"Specified ClassLoader resource '"
+ rsrcPath
+ "' could not be found. "
+ "[ Found in configuration: "
+ XML_CFG_FILE_KEY
+ '='
+ cfgFile
+ " ]");
mbOverrideWarning("resource", rsrcPath);
} else {
is = new BufferedInputStream(new FileInputStream(cfgFile));
mbOverrideWarning("file", cfgFile);
}
C3P0Config xmlConfig = C3P0ConfigXmlUtils.extractXmlConfigFromInputStream(is);
insertDefaultsUnderNascentConfig(flatDefaults, xmlConfig);
out = xmlConfig;
} finally {
try {
if (is != null) is.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
// overwrite default, unspecified user config with System properties
// defined values
Properties sysPropConfig = C3P0ConfigUtils.findAllC3P0SystemProperties();
out.defaultConfig.props.putAll(sysPropConfig);
return out;
}
// TODO: factor out repetitive debugging code
private synchronized void close(boolean known_invalid) throws SQLException {
// System.err.println("Closing " + this);
if (physicalConnection != null) {
try {
StringBuffer debugOnlyLog = null;
if (Debug.DEBUG && known_invalid) {
debugOnlyLog = new StringBuffer();
debugOnlyLog.append("[ exceptions: ");
}
Exception exc = cleanupUncachedActiveStatements();
if (Debug.DEBUG && exc != null) {
if (known_invalid) debugOnlyLog.append(exc.toString() + ' ');
else
logger.log(
MLevel.WARNING,
"An exception occurred while cleaning up uncached active Statements.",
exc);
// exc.printStackTrace();
}
try {
// we've got to use silentClose() rather than close() here,
// 'cuz if there's still an exposedProxy (say a user forgot to
// close his Connection) before we close, and we use regular (loud)
// close, we will try to check this dead or dying PooledConnection
// back into the pool. We only want to do this when close is called
// on user proxies, and the underlying PooledConnection might still
// be good. The PooledConnection itself should only be closed by the
// pool.
if (exposedProxy != null) exposedProxy.silentClose(known_invalid);
} catch (Exception e) {
if (Debug.DEBUG) {
if (known_invalid) debugOnlyLog.append(e.toString() + ' ');
else logger.log(MLevel.WARNING, "An exception occurred.", exc);
// e.printStackTrace();
}
exc = e;
}
try {
this.closeAll();
} catch (Exception e) {
if (Debug.DEBUG) {
if (known_invalid) debugOnlyLog.append(e.toString() + ' ');
else logger.log(MLevel.WARNING, "An exception occurred.", exc);
// e.printStackTrace();
}
exc = e;
}
try {
physicalConnection.close();
} catch (Exception e) {
if (Debug.DEBUG) {
if (known_invalid) debugOnlyLog.append(e.toString() + ' ');
else logger.log(MLevel.WARNING, "An exception occurred.", exc);
e.printStackTrace();
}
exc = e;
}
if (exc != null) {
if (known_invalid) {
debugOnlyLog.append(" ]");
if (Debug.DEBUG) {
// System.err.print("[DEBUG]" + this + ": while closing a PooledConnection known
// to be invalid, ");
// System.err.println(" some exceptions occurred. This is probably not a
// problem:");
// System.err.println( debugOnlyLog.toString() );
logger.fine(
this
+ ": while closing a PooledConnection known to be invalid, "
+ " some exceptions occurred. This is probably not a problem: "
+ debugOnlyLog.toString());
}
} else
throw new SQLException(
"At least one error occurred while attempting "
+ "to close() the PooledConnection: "
+ exc);
}
if (Debug.TRACE == Debug.TRACE_MAX)
logger.fine("C3P0PooledConnection closed. [" + this + ']');
// System.err.println("C3P0PooledConnection closed. [" + this + ']');
} finally {
physicalConnection = null;
}
}
}
