/**
* Returns the object name of the exposed component.
*
* @return the object name of the exposed component.
*/
private String getObjectNameString() {
if (m_completeObjNameElt != null) {
return m_completeObjNameElt;
}
String domain;
if (m_domainElt != null) {
domain = m_domainElt;
} else {
domain = getPackageName(m_instanceManager.getClassName());
}
String name =
"type="
+ m_instanceManager.getClassName()
+ ",instance="
+ m_instanceManager.getInstanceName();
if (m_objNameWODomainElt != null) {
name = "name=" + m_objNameWODomainElt;
}
StringBuffer sb = new StringBuffer();
if ((domain != null) && (domain.length() > 0)) {
sb.append(domain + ":");
}
sb.append(name);
info("Computed Objectname: " + sb.toString());
return sb.toString();
}
/**
* Called when a POJO member is read by the MBean.
*
* @param pojo the read POJO object.
* @param fieldName the name of the modified field
* @param value the old value of the field
* @return the (injected) value of the field
* @see FieldInterceptor#onGet(Object, String, Object)
*/
public Object onGet(Object pojo, String fieldName, Object value) {
// Check if the field is a configurable property
PropertyField propertyField =
(PropertyField) m_jmxConfigFieldMap.getPropertyFromField(fieldName);
if (propertyField != null) {
// Do we have a value to inject ?
Object v = propertyField.getValue();
if (v == null) {
String type = propertyField.getType();
if ("boolean".equals(type)) {
v = Boolean.FALSE;
} else if ("byte".equals(type)) {
v = new Byte((byte) 0);
} else if ("short".equals(type)) {
v = new Short((short) 0);
} else if ("int".equals(type)) {
v = new Integer(0);
} else if ("long".equals(type)) {
v = new Long(0);
} else if ("float".equals(type)) {
v = new Float(0);
} else if ("double".equals(type)) {
v = new Double(0);
} else if ("char".equals(type)) {
v = new Character((char) 0);
}
return v;
}
m_instanceManager.onSet(pojo, fieldName, propertyField.getValue());
return propertyField.getValue();
}
return value;
}
/** Registers the Dynamic Mbean. */
public void start() {
// create the corresponding MBean
if (m_registerCallbacks) {
m_MBean =
new DynamicMBeanWRegisterImpl(
m_jmxConfigFieldMap,
m_instanceManager,
m_preRegisterMeth,
m_postRegisterMeth,
m_preDeregisterMeth,
m_postDeregisterMeth);
} else {
m_MBean = new DynamicMBeanImpl(m_jmxConfigFieldMap, m_instanceManager);
}
if (m_usesMOSGi) {
// use whiteboard pattern to register MBean
if (m_serviceRegistration != null) {
m_serviceRegistration.unregister();
}
// Register the ManagedService
BundleContext bundleContext = m_instanceManager.getContext();
Properties properties = new Properties();
try {
m_objectName = new ObjectName(getObjectNameString());
properties.put("jmxagent.objectName", m_objectName.toString());
m_serviceRegistration =
bundleContext.registerService(
javax.management.DynamicMBean.class.getName(), m_MBean, properties);
m_registered = true;
} catch (Exception e) {
e.printStackTrace();
}
} else {
try {
m_objectName = new ObjectName(getObjectNameString());
ObjectInstance instance =
ManagementFactory.getPlatformMBeanServer().registerMBean(m_MBean, m_objectName);
// we must retrieve object name used to register the MBean.
// It can have been changed by preRegister method of
// MBeanRegistration interface.
if (m_registerCallbacks) {
m_objectName = instance.getObjectName();
}
m_registered = true;
} catch (Exception e) {
error("Registration of MBean failed.", e);
}
}
}
/**
* Returns true if the MOSGi framework is present on the OSGi platform.
*
* @return {@code true} if the MOSGi framework is present on the OSGi platform, false otherwise.
*/
public boolean isMOSGiExists() {
for (Bundle bundle : m_instanceManager.getContext().getBundles()) {
String symbolicName = bundle.getSymbolicName();
if ("org.apache.felix.mosgi.jmx.agent".equals(symbolicName)) {
return true;
}
}
return false;
}
