| Methods Summary |
|---|
| private void | addMapping(java.lang.String first, java.lang.String[] lasts, java.lang.reflect.Method getter)
for (int i = 0 ; i < lasts.length ; i++) {
String lc1 = null;
if (first != null) {
lc1 = first.toLowerCase();
}
if ( lasts[i] != null) {
final String lc2 = lasts[i].toLowerCase();
final String full = new StringBuffer(lc1).append(DELIMITER).append(lc2).toString();
methodMap.put(full, getter);
firstParts.put(lc1, first);
secondParts.put(lc2, lasts[i]);
logger.finer("Method: " + getter.getName() + " added for full attribute: " + full);
}
}
|
| private javax.management.MBeanAttributeInfo[] | attributes2Info()
//go through all the attrs and build the MBeanAttributeInfo[]
final Iterator it = methodMap.keySet().iterator();
final ArrayList attrInfo = new ArrayList();
int i = 0;
while (it.hasNext()) {
final String name = (String) it.next();
final String type = getType(name);
final String desc = getDescription(name);
final boolean isReadable = getReadable(name);
final boolean isWritable = false; //change for JTA
final boolean isIs = false;
attrInfo.add(new MBeanAttributeInfo(name, type, desc, isReadable, isWritable, isIs));
logger.finer("Added the attribute to MBeanAttributeInfo: " + name);
}
// also add the dotted name as an attribute of the MBean
MBeanAttributeInfo dottedNameInfo = new MBeanAttributeInfo(StatsHolderMBeanImpl.DOTTED_NAME,
getType(DOTTED_NAME),
getDescription(DOTTED_NAME),
true,
false,
false);
attrInfo.add(dottedNameInfo);
final MBeanAttributeInfo[] ais = new MBeanAttributeInfo[attrInfo.size()];
logger.finer("No of attrs = " + attrInfo.size());
return (MBeanAttributeInfo[])attrInfo.toArray(ais);
|
| public java.lang.Object | getAttribute(java.lang.String name)
if (! methodMap.containsKey(name)) {
logger.finer("The name supplied may be an old-styled name, making one more attempt: " + name);
name = getHyphenedName(name); //this means the name may be old-styled and we still need to support it.
if (! methodMap.containsKey(name)) {
final String msg = sm.getString("smi.no_such_attribute", name);
throw new IllegalArgumentException (msg);
}
}
return ( invokeGetter(name) );
|
| public javax.management.MBeanAttributeInfo[] | getAttributeInfos()
return ( attributes2Info() );
|
| private java.lang.String[] | getAttributeSubs(java.lang.reflect.Method m)
final Class c = m.getReturnType();
assert (javax.management.j2ee.statistics.Statistic.class.isAssignableFrom(c)) : "The method does not return a Statistic: " + m.getName();
//assert (c.isInterface()) : "Has to be an interface: " + c.getName();
final Method[] rets = c.getMethods();
final String[] subs = new String[rets.length];
for (int i = 0 ; i < rets.length ; i++) {
final Method am = rets[i];
final String name = am.getName();
if (name.startsWith("get")) {
subs[i] = name.substring(3); //String length of "get"
logger.fine("return type = " + subs[i]);
}
}
return ( subs );
|
| private java.lang.String | getDescription(java.lang.String name)
return helper.getDescription(name);
|
| private java.lang.String | getHyphenedName(java.lang.String name)Returns a name with hyphens and lower case characters.
This method is there only to support the J2EE 1.4 SDK release which
supported such names as HeapSize_Current. This method will return a String
that is a modified form of the passed String. The call to this method
occurs only when the given attribute is not found in the method map of
this class.
return ( name.toLowerCase().replace(OLD_DELIMITER.charAt(0), DELIMITER.charAt(0)) );
|
| private java.lang.reflect.Method | getMethodFromDelegate(java.lang.String methodName)
final Method[] instanceMethods = delegate.getClass().getMethods();
Method m = null;
boolean matched = false;
for (int i = 0 ; i < instanceMethods.length ; i++) {
m = instanceMethods[i];
if (methodName.equals(m.getName())) {
matched = true;
break;
}
}
assert (matched != false) : "The Stats object: " + delegate.getClass().getName() + " does not implement declared method: " + methodName;
return ( m );
|
| private boolean | getReadable(java.lang.String name)
return ( true ); // will change later
|
| private java.lang.String | getType(java.lang.String name)
return ( "java.lang.String" ); //will change later
|
| public java.lang.Object | invoke(java.lang.String method, java.lang.Object[] params, java.lang.String[] sign)
// for now this will handle the special case of invoking on
// the JTAStats only. Other Stats will be ignored.
// the method name has been verified in the StatsHolderMBean
logger.fine("Invoking Method: "+method);
Object result = null;
if(! opsMap.containsKey(method)) {
final String msg = sm.getString("smi.no_such_method", method);
throw new IllegalArgumentException(msg);
}
else
{
Method m = (Method)opsMap.get(method);
try {
result = m.invoke(this.delegate, params);
} catch(Exception e) {
logger.info(e.getMessage());
}
}
return result;
|
| private java.lang.Object | invokeGetter(java.lang.String ab)
//it is already checked if this is a valid attribute;
String first = ab.substring(0, ab.indexOf(DELIMITER));
first = (String)firstParts.get(first);
final String fName = "get" + first;
String last = ab.substring(ab.indexOf(DELIMITER) + 1);
last = (String)secondParts.get(last);
final String lName = "get" + last;
if(lName.equalsIgnoreCase(DESCRIPTION_GETTER))
return ((Object)getDescription(first));
Method lastMethod = null;
try {
final Method firstMethod = (Method)methodMap.get(ab);
final Object firstResult = firstMethod.invoke(delegate);
lastMethod = firstResult.getClass().getMethod(lName);
final Object value = lastMethod.invoke(firstResult);
logger.finer("Got value for: " + ab + " as: " + value + " class = " + value.getClass().getName());
return ( value );
}
catch(Exception e) {
logger.throwing(StatsMediatorImpl.class.getName(), "invokeGetter", e);
throw new RuntimeException (e);
}
|
| private boolean | isJtaMetaData()Returns true if and only if the metaData is non null and is an instance
of JTAStats interface.
boolean jta = false;
if (metaData != null) {
if (com.sun.enterprise.admin.monitor.stats.JTAStats.class.getName().equals(metaData.getName()))
jta = true;
}
return ( jta );
|
| private boolean | isStatsInterfaceMethod(java.lang.String name)
final Method[] methods = javax.management.j2ee.statistics.Stats.class.getMethods();
boolean isInterfaceMethod = false;
for (int i = 0 ; i < methods.length ; i++) {
if (methods[i].getName().equals(name)) {
isInterfaceMethod = true;
break;
}
}
return ( isInterfaceMethod );
|
| private void | reflectJTAOps()
opsMap = new HashMap();
final Method[] methods = metaData.getMethods();
for(int i = 0; i < methods.length ; i++) {
String methodName = methods[i].getName();
if((StatsHolderMBeanImpl.JTA_FREEZE.equals(methodName)) ||
(StatsHolderMBeanImpl.JTA_UNFREEZE.equals(methodName)) ||
(StatsHolderMBeanImpl.JTA_ACTIVE_TRANSACTIONS.equals(methodName)) ||
(StatsHolderMBeanImpl.JTA_RUNTIME_RECOVERY_REQUIRED.equals(methodName)) ||
(StatsHolderMBeanImpl.JTA_ROLLBACK.equals(methodName))) {
opsMap.put(methodName, methods[i]);
}
}
|
| private void | reflectedAttributes()
if (metaData == null)
return; //this means that this instance does not have any stats
/* Note that only method names come from the class (metaData) and
* actual Method object should come from the Stats Object to which the
* getters will delegate. */
final Method[] methods = metaData.getMethods();
for (int i = 0; i < methods.length ; i++) {
final String method = methods[i].getName();
if (isStatsInterfaceMethod(method))
continue; //ignore the methods from the super interface javax.management.j2ee.statistics.Stats
final int index = method.indexOf("get");
// a non-getXXX method name should not be processed any further
// needed to support the ops in the JTAStats
if(index != -1) {
final String baseAttrName = method.substring(index + 3);
final String[] attrSubs = getAttributeSubs(methods[i]);
final Method actualMethod = getMethodFromDelegate(method);
addMapping(baseAttrName, attrSubs, actualMethod);
}
}
|
