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/*
* ReplicationWebEventPersistentManager.java
*
* Created on November 18, 2005, 3:38 PM
*
*/
package org.glassfish.web.ha.session.management;
import org.apache.catalina.Session;
import org.glassfish.gms.bootstrap.GMSAdapterService;
import org.glassfish.ha.common.GlassFishHAReplicaPredictor;
import org.glassfish.ha.common.HACookieInfo;
import org.glassfish.ha.common.HACookieManager;
import org.glassfish.ha.common.NoopHAReplicaPredictor;
import org.glassfish.ha.store.api.BackingStoreConfiguration;
import org.glassfish.ha.store.api.BackingStoreException;
import org.glassfish.ha.store.api.BackingStoreFactory;
import org.glassfish.ha.store.api.Storeable;
import org.glassfish.logging.annotation.LogMessageInfo;
import javax.inject.Inject;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.api.PerLookup;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import java.util.Map;
import java.util.logging.Level;
/**
*
* @author Rajiv Mordani
*/
@Service
@PerLookup
public class ReplicationWebEventPersistentManager<T extends Storeable> extends ReplicationManagerBase<T>
implements WebEventPersistentManager {
@Inject
private ServiceLocator services;
@Inject
private GMSAdapterService gmsAdapterService;
private GlassFishHAReplicaPredictor predictor;
private String clusterName = "";
private String instanceName = "";
@LogMessageInfo(
message = "Could not create backing store",
level = "WARNING")
public static final String COULD_NOT_CREATE_BACKING_STORE = "AS-WEB-HA-00008";
/**
* The descriptive information about this implementation.
*/
private static final String info = "ReplicationWebEventPersistentManager/1.0";
/**
* The descriptive name of this Manager implementation (for logging).
*/
private static final String name = "ReplicationWebEventPersistentManager";
// ------------------------------------------------------------- Properties
/**
* Return descriptive information about this Manager implementation and
* the corresponding version number, in the format
* <code><description>/<version></code>.
*/
public String getInfo() {
return (this.info);
}
/** Creates a new instance of ReplicationWebEventPersistentManager */
public ReplicationWebEventPersistentManager() {
super();
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("ReplicationWebEventPersistentManager created");
}
}
@Override
public void add(Session session) {
if(!(session instanceof HANonStorableSession)) {
super.add(session);
}
}
/**
* called from valve; does the save of session
*
* @param session
* The session to store
*/
public void doValveSave(Session session) {
if(session instanceof HANonStorableSession) {
return;
}
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("in doValveSave");
}
try {
ReplicationStore replicationStore = (ReplicationStore) this.getStore();
replicationStore.doValveSave(session);
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("FINISHED repStore.valveSave");
}
} catch (Exception ex) {
ex.printStackTrace();
_logger.log(Level.FINE, "exception occurred in doValveSave id=" + session.getIdInternal(),
ex);
}
}
//START OF 6364900
public void postRequestDispatcherProcess(ServletRequest request, ServletResponse response) {
Session sess = this.getSession(request);
if(sess != null) {
doValveSave(sess);
}
return;
}
private Session getSession(ServletRequest request) {
javax.servlet.http.HttpServletRequest httpReq =
(javax.servlet.http.HttpServletRequest) request;
javax.servlet.http.HttpSession httpSess = httpReq.getSession(false);
if(httpSess == null) {
return null;
}
String id = httpSess.getId();
Session sess = null;
try {
sess = this.findSession(id);
} catch (java.io.IOException ex) {}
return sess;
}
//END OF 6364900
//new code start
//private static int NUMBER_OF_REQUESTS_BEFORE_FLUSH = 1000;
//volatile Map<String, String> removedKeysMap = new ConcurrentHashMap<String, String>();
//private static AtomicInteger requestCounter = new AtomicInteger(0);
private static int _messageIDCounter = 0;
//private AtomicBoolean timeToChange = new AtomicBoolean(false);
// ------------------------------------------------------------- Properties
/**
* Return the descriptive short name of this Manager implementation.
*/
public String getName() {
return this.name;
}
/**
* Back up idle sessions.
* Hercules: modified method we do not want
* background saves when we are using web-event persistence-frequency
*/
protected void processMaxIdleBackups() {
//this is a deliberate no-op for this manager
return;
}
/**
* Swap idle sessions out to Store if too many are active
* Hercules: modified method
*/
protected void processMaxActiveSwaps() {
//this is a deliberate no-op for this manager
return;
}
/**
* Swap idle sessions out to Store if they are idle too long.
*/
protected void processMaxIdleSwaps() {
//this is a deliberate no-op for this manager
return;
}
public String getReplicaFromPredictor(String sessionId, String oldJreplicaValue) {
if (isDisableJreplica()) {
return null;
}
String gmsClusterName = "";
if (gmsAdapterService.isGmsEnabled()) {
gmsClusterName = gmsAdapterService.getGMSAdapter().getClusterName();
}
HACookieInfo cookieInfo = predictor.makeCookie(gmsClusterName, sessionId, oldJreplicaValue);
HACookieManager.setCurrrent(cookieInfo);
return cookieInfo.getNewReplicaCookie();
}
@Override
public void createBackingStore(String persistenceType, String storeName, Class<T> metadataClass, Map<String, Object> vendorMap) {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("Create backing store invoked with persistence type " + persistenceType + " and store name " + storeName);
}
BackingStoreFactory factory = services.getService(BackingStoreFactory.class, persistenceType);
BackingStoreConfiguration<String, T> conf = new BackingStoreConfiguration<String, T>();
if(gmsAdapterService.isGmsEnabled()) {
clusterName = gmsAdapterService.getGMSAdapter().getClusterName();
instanceName = gmsAdapterService.getGMSAdapter().getModule().getInstanceName();
}
conf.setStoreName(storeName)
.setClusterName(clusterName)
.setInstanceName(instanceName)
.setStoreType(persistenceType)
.setKeyClazz(String.class).setValueClazz(metadataClass)
.setClassLoader(this.getClass().getClassLoader());
if (vendorMap != null) {
conf.getVendorSpecificSettings().putAll(vendorMap);
}
try {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("About to create backing store " + conf);
}
this.backingStore = factory.createBackingStore(conf);
} catch (BackingStoreException e) {
_logger.log(Level.WARNING, COULD_NOT_CREATE_BACKING_STORE, e);
}
Object obj = conf.getVendorSpecificSettings().get("key.mapper");
if (obj != null && obj instanceof GlassFishHAReplicaPredictor) {
predictor = (GlassFishHAReplicaPredictor)obj;
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("ReplicatedManager.keymapper is " + predictor);
}
} else {
predictor = new NoopHAReplicaPredictor();
}
}
}