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*
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package org.glassfish.resourcebase.resources.listener;
import com.sun.enterprise.config.serverbeans.*;
import com.sun.enterprise.util.LocalStringManagerImpl;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.hk2.api.IterableProvider;
import org.glassfish.hk2.api.PostConstruct;
import org.glassfish.hk2.api.PreDestroy;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.runlevel.RunLevel;
import org.glassfish.internal.api.ClassLoaderHierarchy;
import org.glassfish.internal.api.InitRunLevel;
import org.glassfish.internal.api.LogManager;
import org.glassfish.resourcebase.resources.api.*;
import org.glassfish.resourcebase.resources.util.ResourceManagerFactory;
import org.glassfish.resourcebase.resources.util.ResourceUtil;
import org.glassfish.resourcebase.resources.ResourceTypeOrderProcessor;
import org.jvnet.hk2.annotations.Optional;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.config.*;
import org.jvnet.hk2.config.types.Property;
import javax.inject.Inject;
import javax.inject.Provider;
import java.beans.PropertyChangeEvent;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.glassfish.resourcebase.resources.ResourceLoggingConstansts;
import org.glassfish.logging.annotation.LoggerInfo;
import org.glassfish.logging.annotation.LogMessagesResourceBundle;
/**
* Resource manager to bind various resources during start-up, create/update/delete of resource/pool
*
* @author Jagadish Ramu
*/
@RunLevel( value= InitRunLevel.VAL + 1, mode=RunLevel.RUNLEVEL_MODE_NON_VALIDATING)
@Service(name="ResourceManager") // this name is used in ApplicationLoaderService
public class ResourceManager implements PostConstruct, PreDestroy, ConfigListener {
@LogMessagesResourceBundle
public static final String LOGMESSAGE_RESOURCE = "org.glassfish.resourcebase.resources.LogMessages";
@LoggerInfo(subsystem="RESOURCE", description="Nucleus Resource", publish=true)
public static final String LOGGER = "javax.enterprise.resources.listener";
private static final Logger logger = Logger.getLogger(LOGGER, LOGMESSAGE_RESOURCE);
private static LocalStringManagerImpl localStrings =
new LocalStringManagerImpl(ResourceManager.class);
@SuppressWarnings("unused")
@Inject @Optional
private LogManager dependency0; // The LogManager must come up prior to this service
@Inject
private ServiceLocator locator;
@Inject
private ResourcesBinder resourcesBinder;
@Inject
private org.glassfish.resourcebase.resources.util.BindableResourcesHelper bindableResourcesHelper;
@Inject
private IterableProvider<ResourceManagerLifecycleListener> resourceManagerLifecycleListenerProviders;
@Inject
private Provider<ResourceManagerFactory> resourceManagerFactoryProvider;
@Inject
private ServerEnvironment environment;
@Inject
private Domain domain;
@Inject
private ClassLoaderHierarchy clh;
@Inject
private ResourceTypeOrderProcessor resourceTypeOrderProcessor;
public void postConstruct() {
notifyListeners(ResourceManagerLifecycleListener.EVENT.STARTUP);
deployResources(resourceTypeOrderProcessor.getOrderedResources(domain.getResources().getResources()));
addListenerToResources();
addListenerToResourceRefs();
addListenerToServer();
}
private void notifyListeners(ResourceManagerLifecycleListener.EVENT event) {
for (ResourceManagerLifecycleListener listener : resourceManagerLifecycleListenerProviders) {
listener.resourceManagerLifecycleEvent(event);
}
}
private void addListenerToResources() {
Resources resources = domain.getResources();
ObservableBean bean = (ObservableBean) ConfigSupport.getImpl(resources);
bean.addListener(this);
}
private void addListenerToServer() {
Server server = domain.getServerNamed(environment.getInstanceName());
ObservableBean bean = (ObservableBean) ConfigSupport.getImpl(server);
bean.addListener(this);
Config config = server.getConfig();
if (config != null) {
((ObservableBean)ConfigSupport.getImpl(config)).addListener(this);
}
}
private Server getServerBean() {
return domain.getServerNamed(environment.getInstanceName());
}
/**
* deploy resources
*
* @param resources list
*/
public void deployResources(Collection<Resource> resources) {
for (Resource resource : resources) {
if (resource instanceof BindableResource) {
BindableResource bindableResource = (BindableResource) resource;
if (bindableResourcesHelper.isBindableResourceEnabled(bindableResource)) {
ResourceInfo resourceInfo = new ResourceInfo(bindableResource.getJndiName());
resourcesBinder.deployResource(resourceInfo, resource);
}
} else if (resource instanceof ServerResource) {
deployServerResource(resource);
} else if (resource instanceof ResourcePool) {
// ignore, as they are loaded lazily
} else {
// only other resource types left are RAC, CWSM
try {
ResourceDeployer deployer = getResourceDeployer(resource);
if (deployer != null)
deployer.deployResource(resource);
} catch (Exception e) {
Object[] params = {ResourceUtil.getGenericResourceInfo(resource), e};
logger.log(Level.WARNING, ResourceLoggingConstansts.UNABLE_TO_DEPLOY, params);
}
}
}
/* TODO V3
will there be a chance of double listener registration for a resource ?
eg: allresources added during startup, resources of a particular
connector during connector startup / redeploy ?
*/
addListenerToResources(resources);
}
public Resources getAllResources() {
return domain.getResources();
}
/**
* Do cleanup of system-resource-adapter, resources, pools
*/
public void preDestroy() {
removeListenerForAllResources();
removeListenerForResources();
removeListenerForResourceRefs();
removeListenerForServer();
notifyListeners(ResourceManagerLifecycleListener.EVENT.SHUTDOWN);
}
private void removeListenerForServer() {
Server server = domain.getServerNamed(environment.getInstanceName());
ObservableBean bean = (ObservableBean) ConfigSupport.getImpl(server);
bean.removeListener(this);
Config config = server.getConfig();
if (config != null) {
((ObservableBean)ConfigSupport.getImpl(config)).removeListener(this);
}
}
/**
* undeploy the given set of resources<br>
* <b>care has to be taken for the case of dependent resources<br>
* eg : all resources need to be undeployed <br>
* before undeploying the pool that they refer to</b>
*
* @param resources list of resources
*/
public void undeployResources(Collection<Resource> resources) {
for (Resource resource : resources) {
try {
ResourceDeployer deployer = getResourceDeployer(resource);
if (deployer != null)
deployer.undeployResource(resource);
else {
Object[] params = {resource.getIdentity()};
logger.log(Level.WARNING,
ResourceLoggingConstansts.UNABLE_TO_UNDEPLOY,
params);
}
} catch (Exception e) {
Object[] params = {org.glassfish.resourcebase.resources.util.ResourceUtil.getGenericResourceInfo(resource), e};
logger.log(Level.WARNING, ResourceLoggingConstansts.UNABLE_TO_UNDEPLOY_EXCEPTION, params);
} finally {
removeListenerForResource(resource);
}
}
}
/**
* Notification that @Configured objects that were injected have changed
*
* @param events list of changes
*/
public UnprocessedChangeEvents changed(PropertyChangeEvent[] events) {
return ConfigSupport.sortAndDispatch(events, new PropertyChangeHandler(events), logger);
}
class PropertyChangeHandler implements Changed {
PropertyChangeEvent[] events;
private PropertyChangeHandler(PropertyChangeEvent[] events) {
this.events = events;
}
/**
* Notification of a change on a configuration object
*
* @param type type of change : ADD mean the changedInstance was added to the parent
* REMOVE means the changedInstance was removed from the parent, CHANGE means the
* changedInstance has mutated.
* @param changedType type of the configuration object
* @param changedInstance changed instance.
*/
public <T extends ConfigBeanProxy> NotProcessed changed(TYPE type, Class<T> changedType, T changedInstance) {
NotProcessed np = null;
ClassLoader contextCL = Thread.currentThread().getContextClassLoader();
try {
ClassLoader ccl = clh.getConnectorClassLoader(null);
Thread.currentThread().setContextClassLoader(ccl);
switch (type) {
case ADD:
if (logger.isLoggable(Level.FINE)) {
logger.fine("A new " + changedType.getName() + " was added : " + changedInstance);
}
np = handleAddEvent(changedInstance);
break;
case CHANGE:
if (logger.isLoggable(Level.FINE)) {
logger.fine("A " + changedType.getName() + " was changed : " + changedInstance);
}
np = handleChangeEvent(changedInstance);
break;
case REMOVE:
if (logger.isLoggable(Level.FINE)) {
logger.fine("A " + changedType.getName() + " was removed : " + changedInstance);
}
np = handleRemoveEvent(changedInstance);
break;
default:
np = new NotProcessed("Unrecognized type of change: " + type);
break;
}
return np;
} finally {
Thread.currentThread().setContextClassLoader(contextCL);
}
}
private <T extends ConfigBeanProxy> NotProcessed handleChangeEvent(T instance) {
NotProcessed np = null;
//TODO V3 handle enabled / disabled / resource-ref / redeploy ?
try {
if (ResourceUtil.isValidEventType(instance)) {
ResourceDeployer deployer = getResourceDeployer(instance);
boolean enabledAttributeChange = false;
if (instance instanceof BindableResource ||
instance instanceof ServerResource) {
Resource resource = (Resource) instance;
for (PropertyChangeEvent event : events) {
String propertyName = event.getPropertyName();
//Depending on the type of event (disable/enable, invoke the
//method on deployer.
if ("enabled".equalsIgnoreCase(propertyName)) {
enabledAttributeChange = true;
if (deployer != null) {
boolean newValue = Boolean.valueOf(event.getNewValue().toString());
boolean oldValue = Boolean.valueOf(event.getOldValue().toString());
if (!(newValue && oldValue)) {
if (resource instanceof ServerResource) {
if (!isServerResourceEnabled(resource)) {
// if pvs value was enabled AND new config is disabled, disable
deployer.disableResource(resource);
} else {
// if pvs value was disabled, new config is Enabled
deployer.enableResource(resource);
}
} else if (resource instanceof BindableResource){
if (newValue) {
deployer.enableResource(resource);
} else {
deployer.disableResource(resource);
}
}
}
}
}
}
}
if (!enabledAttributeChange && deployer != null) {
if (instance instanceof BindableResource) {
BindableResource bindableResource = (BindableResource) instance;
if (getEnabledResourceRefforResource(bindableResource) && Boolean.valueOf(bindableResource.getEnabled())) {
deployer.redeployResource(instance);
}
} else if (instance instanceof ServerResource){
redeployResource((Resource) instance);
} else {
deployer.redeployResource(instance);
}
}
} else if (ResourceUtil.isValidEventType(instance.getParent())) {
//Added in case of a property change
//check for validity of the property's parent and redeploy
if (instance.getParent() instanceof BindableResource) {
BindableResource bindableResource = (BindableResource) instance.getParent();
if (getEnabledResourceRefforResource(bindableResource) && Boolean.valueOf(bindableResource.getEnabled())) {
ResourceDeployer parentDeployer = getResourceDeployer(instance.getParent());
if (parentDeployer != null)
parentDeployer.redeployResource(instance.getParent());
}
} else if (instance instanceof ServerResource){
redeployResource((Resource) instance);
} else {
ResourceDeployer parentDeployer = getResourceDeployer(instance.getParent());
if (parentDeployer != null)
parentDeployer.redeployResource(instance.getParent());
}
} else if (instance instanceof ResourceRef) {
ResourceRef ref = (ResourceRef) instance;
String refName = ref.getRef();
Resource resource = ResourceUtil.getResourceByName(Resource.class, domain.getResources(), refName);
ResourceDeployer deployer = getResourceDeployer(resource);
if (deployer != null) {
for (PropertyChangeEvent event : events) {
String propertyName = event.getPropertyName();
//Depending on the type of event (disable/enable, invoke the
//method on deployer.
if ("enabled".equalsIgnoreCase(propertyName)) {
if (resource instanceof ServerResource) {
if (!isServerResourceEnabled(resource)) {
// should be no op if already disabled
deployer.disableResource(resource);
} else {
// should be no op if already enabled
deployer.enableResource(resource);
}
} else {
//both cannot be true or false
boolean newValue = Boolean.valueOf(event.getNewValue().toString());
boolean oldValue = Boolean.valueOf(event.getOldValue().toString());
if (!(newValue && oldValue)) {
if (newValue) {
deployer.enableResource(resource);
} else {
deployer.disableResource(resource);
}
}
}
}
}
}
}
} catch (Exception ex) {
logger.log(Level.WARNING, ResourceLoggingConstansts.ERROR_HANDLE_CHANGE_EVENT, ex);
np = new NotProcessed(
localStrings.getLocalString(
"resources.resource-manager.change-event-failed",
"Change event failed"));
}
return np;
}
private <T extends ConfigBeanProxy> NotProcessed handleAddEvent(T instance) {
NotProcessed np = null;
//Add listener to the changed instance object
ResourceManager.this.addListenerToResource(instance);
if (instance instanceof BindableResource) {
//ignore - as bindable-resources are handled during resource-ref creation
} else if (instance instanceof ServerResource) {
//ignore - as bindable-resources are handled during resource-ref creation
} else if (instance instanceof ResourcePool) {
//ignore - as pools are handled lazily
} else if (instance instanceof Resource) {
//only resource type left are RAC and CWSM
try {
ResourceDeployer deployer = getResourceDeployer(instance);
if (deployer != null)
deployer.deployResource(instance);
} catch (Exception e) {
Object params[] = {ResourceUtil.getGenericResourceInfo((Resource) instance), e};
logger.log(Level.WARNING, ResourceLoggingConstansts.UNABLE_TO_DEPLOY, params);
}
} else if (instance instanceof Property) {
//Property is not handled here. It is handled as part of the
//Change event of the resource.
} else if (instance instanceof ResourceRef) {
//create-resource-ref
ResourceRef ref = (ResourceRef) instance;
Resource resource = ResourceUtil.getResourceByIdentity(domain.getResources(), ref.getRef());
if (resource instanceof BindableResource) {
BindableResource br = (BindableResource) resource;
if (Boolean.valueOf(ref.getEnabled()) && Boolean.valueOf(br.getEnabled())) {
ResourceInfo resourceInfo = new ResourceInfo(br.getJndiName());
resourcesBinder.deployResource(resourceInfo, br);
}
} else if (resource instanceof ServerResource) {
try {
deployServerResource(resource);
} catch (Exception e) {
Object params[] = {
ResourceUtil.getGenericResourceInfo(
(Resource) instance), e };
logger.log(
Level.WARNING,
ResourceLoggingConstansts.UNABLE_TO_DEPLOY,
params);
}
}
}
return np;
}
private <T extends ConfigBeanProxy> NotProcessed handleRemoveEvent(final T instance) {
NotProcessed np = null;
try {
//this check ensures that a valid resource is handled
if (instance instanceof BindableResource ||
instance instanceof ServerResource) {
//ignore as bindable-resources will have resource-ref.
ResourceManager.this.removeListenerForResource(instance);
} else if (instance instanceof Resource) {
//Remove listener from the removed instance
ResourceManager.this.removeListenerForResource(instance);
//get appropriate deployer and undeploy resource
ResourceDeployer resourceDeployer = getResourceDeployer(instance);
if (resourceDeployer != null)
resourceDeployer.undeployResource(instance);
} else if (ResourceUtil.isValidEventType(instance.getParent())) {
//Added in case of a property remove
//check for validity of the property's parent and redeploy
if (instance.getParent() instanceof BindableResource) {
BindableResource bindableResource = (BindableResource) instance.getParent();
if (getEnabledResourceRefforResource(bindableResource) && Boolean.valueOf(bindableResource.getEnabled())) {
ResourceDeployer parentDeployer = getResourceDeployer(instance.getParent());
if (parentDeployer != null)
parentDeployer.redeployResource(instance.getParent());
}
} else {
redeployResource((Resource) instance.getParent());
}
} else if (instance instanceof ResourceRef) {
//delete-resource-ref
ResourceRef ref = (ResourceRef) instance;
Resource resource = (Resource) ResourceUtil.getResourceByName(
Resource.class, domain.getResources(), ref.getRef());
//get appropriate deployer and undeploy resource
if (resource instanceof BindableResource) {
boolean resourceEnabled = isResourceEnabled(resource);
if (resourceEnabled && Boolean.valueOf(ref.getEnabled())) {
ResourceDeployer resourceDeployer =
getResourceDeployer(resource);
if (resourceDeployer != null)
resourceDeployer.undeployResource(resource);
}
} else if (resource instanceof ServerResource) {
undeployServerResource(resource);
}
//Remove listener from the removed instance
ResourceManager.this.removeListenerForResource(instance);
}
} catch (Exception ex) {
logger.log(Level.WARNING,ResourceLoggingConstansts.ERROR_HANDLE_REMOVE_EVENT,ex);
np = new NotProcessed(
localStrings.getLocalString(
"resources.resource-manager.remove-event-failed",
"Remove event failed"));
}
return np;
}
private boolean isResourceEnabled(Resource resource) {
boolean resourceEnabled =
resource instanceof BindableResource ?
Boolean.valueOf(((BindableResource) resource).getEnabled())
: isServerResourceEnabled(resource);
return resourceEnabled;
}
}
/**
* Add listener to all resources
* Invoked from postConstruct()
*
* @param resources list of resources for which listeners will be registered.
*/
private void addListenerToResources(Collection<Resource> resources) {
for (Resource configuredResource : resources) {
addListenerToResource(configuredResource);
}
}
private boolean getEnabledResourceRefforResource(BindableResource bindableResource) {
for (ResourceRef ref : getResourceRefs()) {
if (ref.getRef().equals(bindableResource.getJndiName())) {
return Boolean.valueOf(ref.getEnabled());
}
}
return false;
}
private void addListenerToResourceRefs() {
for (ResourceRef ref : getResourceRefs()) {
addListenerToResource(ref);
}
}
private List<ResourceRef> getResourceRefs() {
//Instead of injecting ResourceRef[] config array (which will inject all resource-refs in domain.xml
//including the ones in other server instances), get appropriate instance's resource-refs alone.
Server server = getServerBean();
List<ResourceRef> resourceRefs = new ArrayList<ResourceRef>(server.getResourceRef());
// MAC 10/2012 -- If not in cluster, add config refs
Config config = server.getConfig();
if (config != null) {
resourceRefs.addAll(config.getResourceRef());
}
return resourceRefs;
}
/**
* Add listener to a generic resource
* Used in the case of create asadmin command when listeners have to
* be added to the specific resource
*
* @param instance instance to which listener will be registered
*/
private void addListenerToResource(Object instance) {
ObservableBean bean = null;
//add listener to all types of Resource
if (instance instanceof Resource) {
bean = (ObservableBean) ConfigSupport.getImpl((ConfigBeanProxy) instance);
bean.addListener(this);
} else if (instance instanceof ResourceRef) {
bean = (ObservableBean) ConfigSupport.getImpl((ConfigBeanProxy) instance);
bean.addListener(this);
}
}
/**
* Remove listener from a resource
* Used in the case of delete asadmin command
*
* @param instance remove the resource from listening to resource events
*/
private void removeListenerForResource(Object instance) {
ObservableBean bean = null;
if (instance instanceof Resource) {
bean = (ObservableBean) ConfigSupport.getImpl((ConfigBeanProxy) instance);
bean.removeListener(this);
} else if (instance instanceof ResourceRef) {
bean = (ObservableBean) ConfigSupport.getImpl((ConfigBeanProxy) instance);
bean.removeListener(this);
}
}
/**
* Remove listener from all resource refs.
* Invoked from preDestroy().
*/
private void removeListenerForResourceRefs() {
for (ResourceRef ref : getResourceRefs()) {
removeListenerForResource(ref);
}
}
private void removeListenerForResources() {
ObservableBean bean = (ObservableBean) ConfigSupport.getImpl(domain.getResources());
bean.removeListener(this);
}
/**
* Remove listener from all resources
*/
private void removeListenerForAllResources() {
for (Resource configuredResource : domain.getResources().getResources()) {
removeListenerForResource(configuredResource);
}
}
/**
* Given a <i>resource</i> instance, appropriate deployer will be provided
*
* @param resource resource instance
* @return ResourceDeployer
*/
private ResourceDeployer getResourceDeployer(Object resource) {
return resourceManagerFactoryProvider.get().getResourceDeployer(resource);
}
private boolean isServerResourceEnabled(Resource res) {
ResourceDeployer deployer = getResourceDeployer(res);
return isServerResourceEnabled(res, deployer);
}
private boolean isServerResourceEnabled(Resource res, ResourceDeployer deployer) {
if (res instanceof ServerResource && deployer != null) {
ResourceDeployerValidator deployerValidator = getResourceDeployerValidator(deployer);
if (deployerValidator != null && deployerValidator.isEnabledLocally(res))
return true;
}
return false;
}
private boolean isServerResourceDeployed(Resource resource) {
ResourceDeployer deployer = getResourceDeployer(resource);
if (resource instanceof ServerResource && deployer != null) {
ResourceDeployerValidator deployerValidator = getResourceDeployerValidator(deployer);
if (deployerValidator != null && deployerValidator.isDeployedLocally(resource))
return true;
}
return false;
}
private void deployServerResource(Resource resource) {
ResourceDeployer deployer = getResourceDeployer(resource);
if (deployer == null) {
logger.log(
Level.WARNING,
ResourceLoggingConstansts.UNABLE_TO_FIND_RESOURCEDEPLOYER,
new Object[] { resource.getIdentity() }
);
return;
}
try {
if (isServerResourceEnabled(resource, deployer)) {
deployer.deployResource(resource); // deploy the resource; should be a no-op on the deployer if already deployed
} else if (isServerResourceDeployed(resource)) {
deployer.undeployResource(resource); // resource is not enabled in the config, undeploy it if the resource is already deployed
}
} catch (Exception e) {
Object[] params = {
ResourceUtil.getGenericResourceInfo(resource), e };
logger.log(
Level.WARNING,
ResourceLoggingConstansts.UNABLE_TO_DEPLOY,
params);
}
}
private void undeployServerResource(Resource resource) {
ResourceDeployer deployer = getResourceDeployer(resource);
if (deployer == null) {
logger.log(
Level.WARNING,
ResourceLoggingConstansts.UNABLE_TO_FIND_RESOURCEDEPLOYER,
new Object[] { resource.getIdentity() }
);
return;
}
try {
ResourceDeployerValidator validator = getResourceDeployerValidator(deployer);
if (validator != null) {
boolean enabledLocally = validator.isEnabledLocally(resource);
boolean deployed = validator.isDeployedLocally(resource);
if (deployed && !enabledLocally) {
if (logger.isLoggable(Level.FINE))
logger.fine("Undeploy resource " + resource.getIdentity());
// resource is deployed locally and
// is no longer enabled in the config
deployer.undeployResource(resource);
} else if (enabledLocally) {
if (logger.isLoggable(Level.FINE))
logger.fine("Deploy resource " + resource.getIdentity());
// a Resource or ResourceRef was removed,
// but it's now enabled in the config (e.g., through
// inheritance from a Config bean), so
// deploy the resource
deployer.deployResource(resource);
}
}
} catch (Exception e) {
Object[] params = {
ResourceUtil.getGenericResourceInfo(resource), e };
logger.log(
Level.WARNING,
ResourceLoggingConstansts.UNABLE_TO_DEPLOY,
params);
}
}
private void redeployResource(Resource resource) throws Exception {
ResourceDeployer resourceDeployer = getResourceDeployer(resource);
if (resourceDeployer != null) {
ResourceDeployerValidator validator = getResourceDeployerValidator(resourceDeployer);
if (validator != null) {
if (validator.isEnabledLocally(resource)) {
// Resource is currently enabled in the config,
// call the redeploy op; the ResourceDeployer should
// be able to handle this scenario
resourceDeployer.redeployResource(resource);
} else if (validator.isDeployedLocally(resource)) {
// Resource is disabled in new config, and resource
// is currently active, so undeploy
resourceDeployer.undeployResource(resource);
}
} else {
// No validator, just call deployer
resourceDeployer.redeployResource(resource);
}
}
}
private ResourceDeployerValidator getResourceDeployerValidator(
ResourceDeployer deployer) {
ResourceDeployerInfo annotation = deployer.getClass().
getAnnotation(ResourceDeployerInfo.class);
ResourceDeployerValidator deployerValidator =
locator.getService(annotation.validator());
return deployerValidator;
}
}