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/*
* EEPersistenceTypeResolver.java
*
* Created on November 15, 2006, 1:04 PM
*
*/
package com.sun.enterprise.ee.web.sessmgmt;
import java.util.*;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.logging.LogDomains;
import com.sun.appserv.ha.spi.*;
import com.sun.enterprise.web.ServerConfigLookup;
import com.sun.appserv.ha.util.PersistenceTypeResolver;
/**
*
* @author lwhite
*/
public class EEPersistenceTypeResolver implements PersistenceTypeResolver {
public static final String FILE_TYPE = "file";
public static final String MEMORY_TYPE = "memory";
public static final String HA_TYPE = "ha";
public static final String REPLICATED_TYPE = "replicated";
private static final List PREDEFINED_PERSISTENCE_TYPES
= Arrays.asList(FILE_TYPE, MEMORY_TYPE, HA_TYPE, REPLICATED_TYPE);
private static final List PREDEFINED_NO_HADB_PERSISTENCE_TYPES
= Arrays.asList(FILE_TYPE, MEMORY_TYPE, REPLICATED_TYPE);
private static final List PREDEFINED_EJB_NO_HADB_PERSISTENCE_TYPES
= Arrays.asList(FILE_TYPE, REPLICATED_TYPE);
private static final List NON_REPLICATED_PREDEFINED_PERSISTENCE_TYPES
= Arrays.asList(FILE_TYPE, MEMORY_TYPE, HA_TYPE);
private static final List NON_REPLICATED_NO_HADB_PREDEFINED_PERSISTENCE_TYPES
= Arrays.asList(FILE_TYPE, MEMORY_TYPE);
private static final List NON_REPLICATED_EJB_PREDEFINED_PERSISTENCE_TYPES
= Arrays.asList(FILE_TYPE, HA_TYPE);
private static final List NON_REPLICATED_NO_HADB_EJB_PREDEFINED_PERSISTENCE_TYPES
= Arrays.asList(FILE_TYPE);
private static final Logger _logger = LogDomains.getLogger(LogDomains.WEB_LOGGER);
/** Creates a new instance of EEPersistenceTypeResolver */
public EEPersistenceTypeResolver() {
}
private boolean isReplicatedType(String type) {
return REPLICATED_TYPE.equals((String)type);
}
private boolean isPredefinedType(String type) {
return PREDEFINED_PERSISTENCE_TYPES.contains((String)type);
}
private boolean isNonReplicatedPredefinedType(String type) {
return NON_REPLICATED_PREDEFINED_PERSISTENCE_TYPES.contains((String)type);
}
private boolean isNonReplicatedEjbPredefinedType(String type) {
return NON_REPLICATED_EJB_PREDEFINED_PERSISTENCE_TYPES.contains((String)type);
}
private boolean checkGMS() {
JxtaStarter jxtaStarter = JxtaStarter.createInstance();
return jxtaStarter.checkGMS();
}
public boolean isRegisteredType(String type) {
Collection<String> registeredTypes = this.getRegisteredTypes();
/*
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("ourType=" + type + " registeredTypes size=" + registeredTypes.size());
int i=0;
Iterator it = registeredTypes.iterator();
while(it.hasNext()) {
_logger.fine("registeredType[i]=" + it.next());
i++;
}
}
*/
return registeredTypes.contains(type);
}
private Collection<String> getRegisteredTypes() {
BackingStoreRegistry backingStoreRegistry
= BackingStoreRegistry.getInstance();
Collection<String> registeredTypes
= backingStoreRegistry.getRegisteredTypes();
//for now have to add REPLICATED_TYPE
String[] regTypesArray = (String[]) registeredTypes.toArray(new String[0]);
ArrayList regTypesList = new ArrayList();
for(int i=0; i<regTypesArray.length; i++) {
regTypesList.add(regTypesArray[i]);
}
regTypesList.add(REPLICATED_TYPE);
/* for testing only */
// if (_logger.isLoggable(Level.FINE)) {
// for (int i = 0; i < regTypesList.size(); i++) {
// _logger.fine("regType[" + i + "]= " + regTypesList.get(i));
// }
// }
return regTypesList;
}
public String resolvePersistenceType(String persistenceType) {
// test begin
// if (_logger.isLoggable(Level.FINE)) {
// List webTypes = getWebDefinedPersistenceTypes();
// for (int i = 0; i < webTypes.size(); i++) {
//
// _logger.fine("webType[" + i + "]= " + webTypes.get(i));
//
// }
// List ejbTypes = this.getEjbDefinedPersistenceTypes();
// for (int i = 0; i < ejbTypes.size(); i++) {
//
// _logger.fine("ejbType[" + i + "]= " + ejbTypes.get(i));
//
// }
// }
//test end
if (_logger.isLoggable(Level.FINEST)) {
_logger.finest("Resolving persistenceType:" + persistenceType);
}
//do not allow "ha" if HADB is not installed
if(HA_TYPE.equalsIgnoreCase(persistenceType)
&& !ServerConfigLookup.isHADBInstalled()) {
return MEMORY_TYPE;
}
//no change for these types
if(isNonReplicatedPredefinedType(persistenceType)) {
return persistenceType;
}
//if GMS not enabled/running default to MEMORY_TYPE
if(!this.isNativeReplicationEnabled()) {
return MEMORY_TYPE;
}
if(this.isReplicatedType(persistenceType)) {
return persistenceType;
}
/* leave this out for now - can add later
if(!checkGMS()) {
return MEMORY_TYPE;
}
*/
if(isRegisteredType(persistenceType)) {
return REPLICATED_TYPE;
} else {
return MEMORY_TYPE;
}
}
public String resolvePersistenceTypeForEjb(String persistenceType) {
//do not allow "ha" if HADB is not installed
if(HA_TYPE.equalsIgnoreCase(persistenceType)
&& !ServerConfigLookup.isHADBInstalled()) {
return FILE_TYPE;
}
//no change for these types
if(isNonReplicatedEjbPredefinedType(persistenceType)) {
return persistenceType;
}
//if GMS not enabled/running default to FILE_TYPE
if(!this.isNativeReplicationEnabled()) {
return FILE_TYPE;
}
if(this.isReplicatedType(persistenceType)) {
return persistenceType;
}
/* leave this out for now - can add later
if(!checkGMS()) {
return FILE_TYPE;
}
*/
if(isRegisteredType(persistenceType)) {
return REPLICATED_TYPE;
} else {
return FILE_TYPE;
}
}
private boolean isNativeReplicationEnabled() {
ServerConfigLookup lookup = new ServerConfigLookup();
if (_logger.isLoggable(Level.FINEST)) {
_logger.finest("GMS ENABLED:" + lookup.isGMSEnabled());
_logger.finest("NATIVE REPLICATION ENABLED:" + lookup.isNativeReplicationEnabledFromConfig());
}
return lookup.isGMSEnabled() && lookup.isNativeReplicationEnabledFromConfig();
}
public List getWebDefinedPersistenceTypes() {
List result = new ArrayList();
result.addAll(getNonReplicatedPredefinedPersistenceTypes());
//result.addAll(NON_REPLICATED_PREDEFINED_PERSISTENCE_TYPES);
result.addAll(this.getRegisteredTypes());
return result;
}
private List getNonReplicatedPredefinedPersistenceTypes() {
if(ServerConfigLookup.isHADBInstalled()) {
return NON_REPLICATED_PREDEFINED_PERSISTENCE_TYPES;
} else {
return NON_REPLICATED_NO_HADB_PREDEFINED_PERSISTENCE_TYPES;
}
}
public List getEjbDefinedPersistenceTypes() {
List result = new ArrayList();
result.addAll(getNonReplicatedEjbPredefinedPersistenceTypes());
//result.addAll(NON_REPLICATED_EJB_PREDEFINED_PERSISTENCE_TYPES);
result.addAll(this.getRegisteredTypes());
return result;
}
private List getNonReplicatedEjbPredefinedPersistenceTypes() {
if(ServerConfigLookup.isHADBInstalled()) {
return NON_REPLICATED_EJB_PREDEFINED_PERSISTENCE_TYPES;
} else {
return NON_REPLICATED_NO_HADB_EJB_PREDEFINED_PERSISTENCE_TYPES;
}
}
}