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HazelcastSessionTrackerValve.java
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HazelcastSessionTrackerValve.java
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/*
* Copyright 2015-2021 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.v2;
import java.io.IOException;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import javax.servlet.ServletException;
import org.apache.catalina.Session;
import org.apache.catalina.Valve;
import org.apache.catalina.connector.Request;
import org.apache.catalina.connector.Response;
import org.apache.catalina.valves.ValveBase;
import org.apache.juli.logging.Log;
import org.appng.tomcat.session.Utils;
/**
* A {@link Valve} that uses {@link HazelcastManager} to store a {@link Session}
*/
public class HazelcastSessionTrackerValve extends ValveBase {
private final Log log = Utils.getLog(HazelcastSessionTrackerValve.class);
protected Pattern filter = Pattern.compile("^(/template/.*)|((/health)(\\?.*)?)$");
@Override
public void invoke(Request request, Response response) throws IOException, ServletException {
try {
getNext().invoke(request, response);
} finally {
Session session = request.getSessionInternal(false);
if (commitRequired(request.getDecodedRequestURI()) && null != session) {
long start = System.currentTimeMillis();
HazelcastManager manager = (HazelcastManager) request.getContext().getManager();
boolean committed = manager.commit(session);
if (log.isDebugEnabled()) {
log.debug(String.format("handling session %s for %s took %dms (committed: %s)", session.getId(),
request.getServletPath(), System.currentTimeMillis() - start, committed));
}
}
}
}
protected boolean commitRequired(String uri) {
return null == filter || !filter.matcher(uri).matches();
}
public String getFilter() {
return null == filter ? null : filter.toString();
}
public void setFilter(String filter) {
if (filter == null || filter.length() == 0) {
this.filter = null;
} else {
try {
this.filter = Pattern.compile(filter);
} catch (PatternSyntaxException pse) {
log.error("ivalid pattern", pse);
}
}
}
}