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HazelcastSession.java
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HazelcastSession.java
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/*
* Copyright 2015-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.appng.tomcat.session.hazelcast;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.security.Principal;
import org.apache.catalina.Manager;
import org.apache.catalina.Session;
import org.appng.tomcat.session.SessionData;
import org.appng.tomcat.session.Utils;
/**
* A {@link Session} that can be flagged as dirty.
*/
public class HazelcastSession extends org.apache.catalina.session.StandardSession {
private static String DIRTY_FLAG = "__changed__";
private static final long serialVersionUID = -5219705900405324572L;
protected transient boolean dirty = false;
public HazelcastSession(Manager manager) {
super(manager);
}
@Override
public void setAttribute(String key, Object value) {
super.setAttribute(key, value);
markDirty();
}
@Override
public void removeAttribute(String name) {
super.removeAttribute(name);
markDirty();
}
@Override
public void setPrincipal(Principal principal) {
super.setPrincipal(principal);
markDirty();
}
@Override
public void setMaxInactiveInterval(int interval) {
super.setMaxInactiveInterval(interval);
markDirty();
}
private void markDirty() {
dirty = true;
}
public boolean isDirty() {
return dirty;
}
public void setClean() {
removeAttribute(DIRTY_FLAG);
this.dirty = false;
}
public SessionData serialize() throws IOException {
return serialize(null);
}
public SessionData serialize(String alternativeSiteName) throws IOException {
try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos)) {
setClean();
writeObjectData(oos);
oos.flush();
bos.flush();
String siteName = null == alternativeSiteName ? Utils.getSiteName(this) : alternativeSiteName;
return new SessionData(getId(), siteName, bos.toByteArray());
}
}
public static HazelcastSession create(Manager manager, SessionData sessionData)
throws IOException, ClassNotFoundException {
try (ByteArrayInputStream is = new ByteArrayInputStream(sessionData.getData());
ObjectInputStream ois = Utils.getObjectInputStream(is, sessionData.getSite(), manager.getContext())) {
HazelcastSession session = (HazelcastSession) manager.createEmptySession();
session.readObjectData(ois);
session.access();
session.endAccess();
session.setClean();
return session;
}
}
}