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*
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package com.sun.enterprise.resource.pool;
import com.sun.appserv.connectors.internal.api.ConnectorConstants.PoolType;
import com.sun.appserv.connectors.internal.api.ConnectorRuntime;
import com.sun.appserv.connectors.internal.api.PoolingException;
import com.sun.appserv.connectors.internal.spi.MCFLifecycleListener;
import com.sun.enterprise.connectors.ConnectorConnectionPool;
import com.sun.enterprise.connectors.ConnectorRegistry;
import com.sun.enterprise.deployment.ResourceReferenceDescriptor;
import com.sun.enterprise.resource.ClientSecurityInfo;
import com.sun.enterprise.resource.ResourceHandle;
import com.sun.enterprise.resource.ResourceSpec;
import com.sun.enterprise.resource.allocator.ResourceAllocator;
import com.sun.enterprise.resource.listener.PoolLifeCycle;
import com.sun.enterprise.resource.rm.*;
import com.sun.enterprise.transaction.api.JavaEETransaction;
import com.sun.enterprise.transaction.api.JavaEETransactionManager;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.logging.LogDomains;
import org.glassfish.api.invocation.ComponentInvocation;
import org.glassfish.api.invocation.ComponentInvocationHandler;
import org.glassfish.api.invocation.InvocationException;
import org.glassfish.resourcebase.resources.api.PoolInfo;
import org.jvnet.hk2.annotations.Service;
import jakarta.inject.Inject;
import jakarta.inject.Provider;
import jakarta.resource.ResourceException;
import jakarta.resource.spi.ManagedConnection;
import jakarta.resource.spi.ManagedConnectionFactory;
import jakarta.resource.spi.RetryableUnavailableException;
import jakarta.transaction.Synchronization;
import jakarta.transaction.Transaction;
import javax.transaction.xa.XAResource;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author Tony Ng, Aditya Gore
*/
@Service
public class PoolManagerImpl extends AbstractPoolManager implements ComponentInvocationHandler {
private final ConcurrentHashMap poolTable;
protected final static StringManager localStrings =
StringManager.getManager(PoolManagerImpl.class);
private ResourceManager resourceManager;
private ResourceManager sysResourceManager;
private ResourceManager noTxResourceManager;
private LazyEnlistableResourceManagerImpl lazyEnlistableResourceManager;
private static Logger _logger = null;
@Inject
private Provider connectorRuntimeProvider;
private ConnectorRuntime runtime;
static {
_logger = LogDomains.getLogger(PoolManagerImpl.class, LogDomains.RSR_LOGGER);
}
private PoolLifeCycle listener;
public PoolManagerImpl() {
this.poolTable = new ConcurrentHashMap();
resourceManager = new ResourceManagerImpl();
sysResourceManager = new SystemResourceManagerImpl();
noTxResourceManager = new NoTxResourceManagerImpl();
lazyEnlistableResourceManager = new LazyEnlistableResourceManagerImpl();
}
public void createEmptyConnectionPool(PoolInfo poolInfo,
PoolType pt, Hashtable env) throws PoolingException {
//Create and initialise the connection pool
createAndInitPool(poolInfo, pt, env);
if (listener != null) {
try {
listener.poolCreated(poolInfo);
} catch (Exception ex) {
if(_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Exception thrown on pool listener");
}
}
}
//notify mcf-create
ManagedConnectionFactory mcf = ConnectorRegistry.getInstance().getManagedConnectionFactory(poolInfo);
if(mcf != null){
if(mcf instanceof MCFLifecycleListener){
((MCFLifecycleListener)mcf).mcfCreated();
}
}
}
/**
* Create and initialize pool if not created already.
*
* @param poolInfo Name of the pool to be created
* @param pt - PoolType
* @return ResourcePool - newly created pool
* @throws PoolingException when unable to create/initialize pool
*/
private ResourcePool createAndInitPool(final PoolInfo poolInfo, PoolType pt, Hashtable env)
throws PoolingException {
ResourcePool pool = getPool(poolInfo);
if (pool == null) {
pool = ResourcePoolFactoryImpl.newInstance(poolInfo, pt, env);
addPool(pool);
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Created connection pool and added it to PoolManager :" + pool);
}
}
return pool;
}
// invoked by DataSource objects to obtain a connection
public Object getResource(ResourceSpec spec, ResourceAllocator alloc, ClientSecurityInfo info)
throws PoolingException, RetryableUnavailableException {
Transaction tran = null;
boolean transactional = alloc.isTransactional();
if (transactional) {
tran = getResourceManager(spec).getTransaction();
}
ResourceHandle handle =
getResourceFromPool(spec, alloc, info, tran);
if (!handle.supportsLazyAssociation()) {
spec.setLazyAssociatable(false);
}
if (spec.isLazyAssociatable() &&
spec.getConnectionToAssociate() != null) {
//If getConnectionToAssociate returns a connection that means
//we need to associate a new connection with it
try {
Object connection = spec.getConnectionToAssociate();
ManagedConnection dmc
= (ManagedConnection) handle.getResource();
dmc.associateConnection(connection);
} catch (ResourceException e) {
putbackDirectToPool(handle, spec.getPoolInfo());
PoolingException pe = new PoolingException(
e.getMessage());
pe.initCause(e);
throw pe;
}
}
//If the ResourceAdapter does not support lazy enlistment
//we cannot either
if (!handle.supportsLazyEnlistment()) {
spec.setLazyEnlistable(false);
}
handle.setResourceSpec(spec);
try {
if (handle.getResourceState().isUnenlisted()) {
//The spec being used here is the spec with the updated
//lazy enlistment info
//Here's the real place where we care about the correct
//resource manager (which in turn depends upon the ResourceSpec)
//and that's because if lazy enlistment needs to be done
//we need to get the LazyEnlistableResourceManager
getResourceManager(spec).enlistResource(handle);
}
} catch (Exception e) {
//In the rare cases where enlistResource throws exception, we
//should throw the resource away
putbackBadResourceToPool(handle);
_logger.log(Level.WARNING, "poolmgr.err_enlisting_res_in_getconn",
spec.getPoolInfo());
logFine("rm.enlistResource threw Exception. Evicting resource from pool");
//and rethrow the exception
throw new PoolingException(e);
}
return handle.getUserConnection();
}
public void putbackDirectToPool(ResourceHandle h, PoolInfo poolInfo) {
// notify pool
if (poolInfo != null) {
ResourcePool pool = poolTable.get(poolInfo);
if (pool != null) {
pool.resourceClosed(h);
}
}
}
public ResourceHandle getResourceFromPool(ResourceSpec spec, ResourceAllocator alloc, ClientSecurityInfo info,
Transaction tran) throws PoolingException, RetryableUnavailableException {
ResourcePool pool = getPool(spec.getPoolInfo());
// pool.getResource() has been modified to:
// - be able to create new resource if needed
// - block the caller until a resource is acquired or
// the max-wait-time expires
return pool.getResource(spec, alloc, tran);
}
/**
* Switch on matching in the pool.
*
* @param poolInfo Name of the pool
*/
public boolean switchOnMatching(PoolInfo poolInfo) {
ResourcePool pool = getPool(poolInfo);
if (pool != null) {
pool.switchOnMatching();
return true;
} else {
return false;
}
}
/* private ConcurrentHashMap getPoolTable() {
return poolTable;
}
*/
private void addPool(ResourcePool pool) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("Adding pool " + pool.getPoolInfo() + "to pooltable");
}
poolTable.put(pool.getPoolStatus().getPoolInfo(), pool);
}
private ResourceManager getResourceManager(ResourceSpec spec) {
if (spec.isNonTx()) {
logFine("Returning noTxResourceManager");
return noTxResourceManager;
} else if (spec.isPM()) {
logFine("Returning sysResourceManager");
return sysResourceManager;
} else if (spec.isLazyEnlistable()) {
logFine("Returning LazyEnlistableResourceManager");
return lazyEnlistableResourceManager;
} else {
logFine("Returning resourceManager");
return resourceManager;
}
}
private void addSyncListener(Transaction tran) {
Synchronization sync = new SynchronizationListener(tran);
try {
tran.registerSynchronization(sync);
} catch (Exception ex) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("Error adding syncListener : "
+ (ex.getMessage() != null ? ex.getMessage() : " "));
}
}
}
// called by EJB Transaction Manager
public void transactionCompleted(Transaction tran, int status)
throws IllegalStateException {
Iterator iter = ((JavaEETransaction) tran).getAllParticipatingPools().iterator();
while (iter.hasNext()) {
ResourcePool pool = getPool((PoolInfo) iter.next());
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("calling transactionCompleted on " + pool.getPoolInfo());
}
pool.transactionCompleted(tran, status);
}
}
public void resourceEnlisted(Transaction tran, com.sun.appserv.connectors.internal.api.ResourceHandle h)
throws IllegalStateException {
ResourceHandle res = (ResourceHandle) h;
PoolInfo poolInfo = res.getResourceSpec().getPoolInfo();
try {
JavaEETransaction j2eeTran = (JavaEETransaction) tran;
if (poolInfo != null && j2eeTran.getResources(poolInfo) == null) {
addSyncListener(tran);
}
} catch (ClassCastException e) {
addSyncListener(tran);
}
if (poolInfo != null) {
ResourcePool pool = getPool(poolInfo);
if (pool != null) {
pool.resourceEnlisted(tran, res);
}
}
}
/**
* This method gets called by the LazyEnlistableConnectionManagerImpl when
* a connection needs enlistment, i.e on use of a Statement etc.
*/
public void lazyEnlist(ManagedConnection mc) throws ResourceException {
lazyEnlistableResourceManager.lazyEnlist(mc);
}
private ConnectorRuntime getConnectorRuntime() {
if(runtime == null){
runtime = connectorRuntimeProvider.get();
}
return runtime;
}
public void registerResource(com.sun.appserv.connectors.internal.api.ResourceHandle handle) throws PoolingException {
ResourceHandle h = (ResourceHandle)handle;
ResourceManager rm = getResourceManager(h.getResourceSpec());
rm.registerResource(h);
}
public void registerPoolLifeCycleListener(PoolLifeCycle poolListener) {
listener = poolListener;
}
public void unregisterPoolLifeCycleListener() {
listener = null;
}
public void unregisterResource(com.sun.appserv.connectors.internal.api.ResourceHandle resource, int xaresFlag) {
ResourceHandle h = (ResourceHandle)resource;
ResourceManager rm = getResourceManager(h.getResourceSpec());
rm.unregisterResource(h, xaresFlag);
}
public void resourceClosed(ResourceHandle resource) {
ResourceManager rm = getResourceManager(resource.getResourceSpec());
rm.delistResource(resource, XAResource.TMSUCCESS);
putbackResourceToPool(resource, false);
}
public void badResourceClosed(ResourceHandle resource) {
ResourceManager rm = getResourceManager(resource.getResourceSpec());
rm.delistResource(resource, XAResource.TMSUCCESS);
putbackBadResourceToPool(resource);
}
public void resourceErrorOccurred(ResourceHandle resource) {
putbackResourceToPool(resource, true);
}
public void resourceAbortOccurred(ResourceHandle resource) {
ResourceManager rm = getResourceManager(resource.getResourceSpec());
rm.delistResource(resource, XAResource.TMSUCCESS);
putbackResourceToPool(resource, true);
}
public void putbackBadResourceToPool(ResourceHandle h) {
// notify pool
PoolInfo poolInfo = h.getResourceSpec().getPoolInfo();
if (poolInfo != null) {
ResourcePool pool = poolTable.get(poolInfo);
if (pool != null) {
synchronized (pool) {
pool.resourceClosed(h);
h.setConnectionErrorOccurred();
pool.resourceErrorOccurred(h);
}
}
}
}
public void putbackResourceToPool(ResourceHandle h,
boolean errorOccurred) {
// notify pool
PoolInfo poolInfo = h.getResourceSpec().getPoolInfo();
if (poolInfo != null) {
ResourcePool pool = poolTable.get(poolInfo);
if (pool != null) {
if (errorOccurred) {
pool.resourceErrorOccurred(h);
} else {
pool.resourceClosed(h);
}
}
}
}
/**
* Use this method if the string being passed does not
* involve multiple concatenations
* Avoid using this method in exception-catch blocks as they
* are not frequently executed
*
* @param msg String
*/
private void logFine(String msg) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine(msg);
}
}
public ResourcePool getPool(PoolInfo poolInfo) {
if (poolInfo == null) {
return null;
}
return poolTable.get(poolInfo);
}
/**
* Kill the pool with the specified pool name
*
* @param poolInfo - The name of the pool to kill
*/
public void killPool(PoolInfo poolInfo) {
//empty the pool
//and remove from poolTable
ResourcePool pool = poolTable.get(poolInfo);
if (pool != null) {
pool.cancelResizerTask();
pool.emptyPool();
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("Removing pool " + pool + " from pooltable");
}
poolTable.remove(poolInfo);
if (listener != null){
listener.poolDestroyed(poolInfo);
}
//notify mcf-destroy
ManagedConnectionFactory mcf = ConnectorRegistry.getInstance().getManagedConnectionFactory(poolInfo);
if(mcf != null){
if(mcf instanceof MCFLifecycleListener){
((MCFLifecycleListener)mcf).mcfDestroyed();
}
}
}
}
public void killFreeConnectionsInPools() {
Iterator pools = poolTable.values().iterator();
logFine("Killing all free connections in pools");
while (pools.hasNext()) {
ResourcePool pool = (ResourcePool) pools.next();
if (pool != null) {
PoolInfo poolInfo = pool.getPoolStatus().getPoolInfo();
try {
if (poolInfo != null) {
ResourcePool poolToKill = poolTable.get(poolInfo);
if (poolToKill != null) {
pool.emptyFreeConnectionsInPool();
}
if (_logger.isLoggable(Level.FINE)){
_logger.fine("Now killing free connections in pool : " + poolInfo);
}
}
} catch (Exception e) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("Error killing pool : " + poolInfo + " :: "
+ (e.getMessage() != null ? e.getMessage() : " "));
}
}
}
}
}
public ResourceReferenceDescriptor getResourceReference(String jndiName, String logicalName) {
Set descriptors = getConnectorRuntime().getResourceReferenceDescriptor();
List matchingRefs = new ArrayList();
if (descriptors != null) {
for (Object descriptor : descriptors) {
ResourceReferenceDescriptor ref =
(ResourceReferenceDescriptor) descriptor;
String name = ref.getJndiName();
if (jndiName.equals(name)) {
matchingRefs.add(ref);
}
}
}
if(matchingRefs.size()==1){
return (ResourceReferenceDescriptor)matchingRefs.get(0);
}else if(matchingRefs.size() > 1){
Iterator it = matchingRefs.iterator();
while(it.hasNext()){
ResourceReferenceDescriptor rrd = (ResourceReferenceDescriptor)it.next();
String refName = rrd.getName();
if(refName != null && logicalName != null){
refName = getJavaName(refName);
if(refName.equals(getJavaName(logicalName))){
return rrd;
}
}
}
}
return null;
}
private static String getJavaName(String name){
if(name == null || name.startsWith("java:")){
return name;
}else {
//by default, scope is "comp"
return "java:comp/env/" + name;
}
}
public void beforePreInvoke(ComponentInvocation.ComponentInvocationType invType, ComponentInvocation prevInv,
ComponentInvocation newInv) throws InvocationException {
//no-op
}
public void afterPreInvoke(ComponentInvocation.ComponentInvocationType invType, ComponentInvocation prevInv,
ComponentInvocation curInv) throws InvocationException {
//no-op
}
public void beforePostInvoke(ComponentInvocation.ComponentInvocationType invType, ComponentInvocation prevInv,
ComponentInvocation curInv) throws InvocationException {
//no-op
}
/*
* Called by the InvocationManager at methodEnd. This method
* will disassociate ManagedConnection instances from Connection
* handles if the ResourceAdapter supports that.
*/
public void afterPostInvoke(ComponentInvocation.ComponentInvocationType invType, ComponentInvocation prevInv,
ComponentInvocation curInv) throws InvocationException {
postInvoke(curInv);
}
private void postInvoke(ComponentInvocation curInv){
ComponentInvocation invToUse = curInv;
/*
if(invToUse == null){
invToUse = getConnectorRuntime().getInvocationManager().getCurrentInvocation();
}
*/
if (invToUse == null) {
return;
}
Object comp = invToUse.getInstance();
if (comp == null) {
return;
}
handleLazilyAssociatedConnectionPools(comp, invToUse);
}
/**
* If the connections associated with the component are lazily-associatable, dissociate them.
* @param comp Component that acquired connections
* @param invToUse component invocation
*/
private void handleLazilyAssociatedConnectionPools(Object comp, ComponentInvocation invToUse) {
JavaEETransactionManager tm = getConnectorRuntime().getTransactionManager();
List list = tm.getExistingResourceList(comp, invToUse);
if (list == null) {
//For invocations of asadmin the ComponentInvocation does not
//have any resources and hence the existingResourcesList is null
return;
}
if (list.isEmpty()) return;
ResourceHandle[] handles = new ResourceHandle[list.size()];
handles = (ResourceHandle[]) list.toArray(handles);
for (ResourceHandle h : handles) {
if (h == null) {
_logger.log(Level.WARNING, "lazy_association.lazy_association_resource_handle");
continue;
}
ResourceSpec spec = h.getResourceSpec();
if (spec == null) {
_logger.log(Level.WARNING, "lazy_association.lazy_association_resource_spec");
continue;
}
if (spec.isLazyAssociatable()) {
//In this case we are assured that the managedConnection is
//of type DissociatableManagedConnection
if (h.getResource() != null) {
jakarta.resource.spi.DissociatableManagedConnection mc
= (jakarta.resource.spi.DissociatableManagedConnection) h.getResource();
if (h.isEnlisted()) {
getResourceManager(spec).delistResource(
h, XAResource.TMSUCCESS);
}
try {
mc.dissociateConnections();
} catch (ResourceException re) {
InvocationException ie = new InvocationException(
re.getMessage());
ie.initCause(re);
throw ie;
} finally {
if (h.getResourceState().isBusy()) {
putbackDirectToPool(h, spec.getPoolInfo());
}
}
} else {
_logger.log(Level.WARNING, "lazy_association.lazy_association_resource");
}
}
}
}
class SynchronizationListener implements Synchronization {
private Transaction tran;
SynchronizationListener(Transaction tran) {
this.tran = tran;
}
public void afterCompletion(int status) {
try {
transactionCompleted(tran, status);
} catch (Exception ex) {
if(_logger.isLoggable(Level.FINE)) {
_logger.fine("Exception in afterCompletion : " +
(ex.getMessage() != null ? ex.getMessage() : " "));
}
}
}
public void beforeCompletion() {
// do nothing
}
}
public void reconfigPoolProperties(ConnectorConnectionPool ccp) throws PoolingException {
PoolInfo poolInfo = ccp.getPoolInfo();
ResourcePool pool = getPool( poolInfo );
if (pool != null ) {
pool.reconfigurePool( ccp );
}
}
/**
* Flush Connection pool by reinitializing the connections
* established in the pool.
* @param poolInfo
* @throws com.sun.appserv.connectors.internal.api.PoolingException
*/
public boolean flushConnectionPool(PoolInfo poolInfo) throws PoolingException {
boolean result = false;
ResourcePool pool = getPool( poolInfo );
if(pool != null) {
result = pool.flushConnectionPool();
} else {
_logger.log(Level.WARNING, "poolmgr.flush_noop_pool_not_initialized", poolInfo);
String exString = localStrings.getString("poolmgr.flush_noop_pool_not_initialized",
poolInfo.toString());
throw new PoolingException(exString);
}
return result;
}
/**
* Get connection pool status.
* @param poolInfo
* @return
*/
public PoolStatus getPoolStatus(PoolInfo poolInfo) {
ResourcePool pool = poolTable.get(poolInfo);
if(pool != null) {
return pool.getPoolStatus();
} else {
//TODO log exception
return null;
}
}
}
