@Override
public int getLocalSize() {
if (nc != null) {
synchronized (this) {
if (mBeanServer == null || jmxCacheName == null) {
int nodeId = CacheFactory.getCluster().getLocalMember().getId();
jmxCacheName = String.format(CACHE_JMX_NAME_TEMPLATE, serviceName, cacheName, nodeId);
mBeanServer = MBeanHelper.findMBeanServer();
}
}
try {
AttributeList list =
mBeanServer.getAttributes(
new ObjectName(jmxCacheName), new String[] {"Units", "UnitFactor"});
return ((Integer) ((Attribute) list.get(0)).getValue())
* ((Integer) ((Attribute) list.get(1)).getValue());
} catch (Exception e) {
log.warn("Failed to retrieve JMX info from object " + jmxCacheName + "\n" + e);
return -1;
}
} else {
log.info("Cache is not available.");
return -1;
}
}
/** @see DynamicMBean#setAttributes */
public AttributeList setAttributes(AttributeList attributes) {
/* Sanity checking. */
if (attributes == null) {
throw new IllegalArgumentException("attribute list can't be null");
}
/* Set each attribute specified. */
AttributeList results = new AttributeList();
for (int i = 0; i < attributes.size(); i++) {
Attribute attr = (Attribute) attributes.get(i);
try {
/* Set new value. */
jeHelper.setAttribute(targetEnv, attr);
/*
* Add the name and new value to the result list. Be sure
* to ask the MBean for the new value, rather than simply
* using attr.getValue(), because the new value may not
* be same if it is modified according to the JE
* implementation.
*/
String name = attr.getName();
Object newValue = jeHelper.getAttribute(targetEnv, name);
results.add(new Attribute(name, newValue));
} catch (Exception e) {
e.printStackTrace();
}
}
return results;
}
private static boolean checkAttrs(String what, AttributeList attrs) {
if (attrs.size() != 1) {
System.out.println(
"TEST FAILS: list returned by " + what + " does not have size 1: " + attrs);
return false;
}
Attribute attr = (Attribute) attrs.get(0);
if (!"Exotic".equals(attr.getName())) {
System.out.println("TEST FAILS: " + what + " returned wrong " + "attribute: " + attr);
return false;
}
return true;
}
public synchronized AttributeList setAttributes(AttributeList list) {
AttributeList results = new AttributeList();
for (int i = 0; i < list.size(); i++) {
Attribute attr = (Attribute) list.get(i);
if (setNamedAttribute(attr)) {
results.add(attr);
} else {
if (log.isWarnEnabled()) {
log.warn(
"Failed to update attribute name "
+ attr.getName()
+ " with value "
+ attr.getValue());
}
}
}
return results;
}
private static Object attrValue(AttributeList attrs) {
return ((Attribute) attrs.get(0)).getValue();
}
