/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.extension.undertow;
import io.undertow.servlet.UndertowServletLogger;
import io.undertow.servlet.api.SessionPersistenceManager;
import org.jboss.marshalling.ByteBufferInput;
import org.jboss.marshalling.Marshaller;
import org.jboss.marshalling.MarshallerFactory;
import org.jboss.marshalling.MarshallingConfiguration;
import org.jboss.marshalling.ModularClassResolver;
import org.jboss.marshalling.OutputStreamByteOutput;
import org.jboss.marshalling.Unmarshaller;
import org.jboss.marshalling.river.RiverMarshallerFactory;
import org.jboss.modules.ModuleLoader;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.wildfly.extension.undertow.logging.UndertowLogger;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.Serializable;
import java.nio.ByteBuffer;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
/**
* Persistent session manager
*
* @author Stuart Douglas
*/
public abstract class AbstractPersistentSessionManager implements SessionPersistenceManager, Service<SessionPersistenceManager> {
public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("undertow", "persistent-session-manager");
private MarshallerFactory factory;
private MarshallingConfiguration configuration;
private final InjectedValue<ModuleLoader> moduleLoaderInjectedValue = new InjectedValue<>();
@Override
public void persistSessions(String deploymentName, Map<String, PersistentSession> sessionData) {
try {
final Marshaller marshaller = createMarshaller();
try {
final Map<String, SessionEntry> serializedData = new HashMap<String, SessionEntry>();
for (Map.Entry<String, PersistentSession> sessionEntry : sessionData.entrySet()) {
Map<String, byte[]> data = new HashMap<String, byte[]>();
for (Map.Entry<String, Object> sessionAttribute : sessionEntry.getValue().getSessionData().entrySet()) {
try {
final ByteArrayOutputStream out = new ByteArrayOutputStream();
marshaller.start(new OutputStreamByteOutput(out));
marshaller.writeObject(sessionAttribute.getValue());
marshaller.finish();
data.put(sessionAttribute.getKey(), out.toByteArray());
} catch (Exception e) {
UndertowLogger.ROOT_LOGGER.failedToPersistSessionAttribute(sessionAttribute.getKey(), sessionAttribute.getValue(), sessionEntry.getKey(), e);
}
}
serializedData.put(sessionEntry.getKey(), new SessionEntry(sessionEntry.getValue().getExpiration(), data));
}
persistSerializedSessions(deploymentName, serializedData);
} finally {
marshaller.close();
}
} catch (Exception e) {
UndertowServletLogger.ROOT_LOGGER.failedToPersistSessions(e);
}
}
protected abstract void persistSerializedSessions(String deploymentName, Map<String, SessionEntry> serializedData) throws IOException;
protected abstract Map<String, SessionEntry> loadSerializedSessions(final String deploymentName) throws IOException;
@Override
public Map<String, PersistentSession> loadSessionAttributes(String deploymentName, final ClassLoader classLoader) {
try {
Unmarshaller unmarshaller = createUnmarshaller();
try {
long time = System.currentTimeMillis();
Map<String, SessionEntry> data = loadSerializedSessions(deploymentName);
if (data != null) {
Map<String, PersistentSession> ret = new HashMap<String, PersistentSession>();
for (Map.Entry<String, SessionEntry> sessionEntry : data.entrySet()) {
if (sessionEntry.getValue().expiry.getTime() > time) {
Map<String, Object> session = new HashMap<String, Object>();
for (Map.Entry<String, byte[]> sessionAttribute : sessionEntry.getValue().data.entrySet()) {
unmarshaller.start(new ByteBufferInput(ByteBuffer.wrap(sessionAttribute.getValue())));
session.put(sessionAttribute.getKey(), unmarshaller.readObject());
unmarshaller.finish();
}
ret.put(sessionEntry.getKey(), new PersistentSession(sessionEntry.getValue().expiry, session));
}
}
return ret;
}
} finally {
unmarshaller.close();
}
} catch (Exception e) {
UndertowServletLogger.ROOT_LOGGER.failedtoLoadPersistentSessions(e);
}
return null;
}
protected Marshaller createMarshaller() throws IOException {
return factory.createMarshaller(configuration);
}
protected Unmarshaller createUnmarshaller() throws IOException {
return factory.createUnmarshaller(configuration);
}
@Override
public void clear(String deploymentName) {
}
@Override
public synchronized void start(StartContext startContext) throws StartException {
final RiverMarshallerFactory factory = new RiverMarshallerFactory();
final MarshallingConfiguration configuration = new MarshallingConfiguration();
configuration.setClassResolver(ModularClassResolver.getInstance(moduleLoaderInjectedValue.getValue()));
this.configuration = configuration;
this.factory = factory;
}
@Override
public synchronized void stop(StopContext stopContext) {
}
@Override
public synchronized SessionPersistenceManager getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
public InjectedValue<ModuleLoader> getModuleLoaderInjectedValue() {
return moduleLoaderInjectedValue;
}
protected static final class SessionEntry implements Serializable {
private final Date expiry;
private final Map<String, byte[]> data;
private SessionEntry(Date expiry, Map<String, byte[]> data) {
this.expiry = expiry;
this.data = data;
}
public Date getExpiry() {
return expiry;
}
public Map<String, byte[]> getData() {
return data;
}
}
}