/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.isis.applib.services.session;
import org.apache.isis.applib.annotation.Programmatic;
import java.util.Date;
/**
* Similar to the {@link org.apache.isis.applib.services.audit.AuditingService3}, this defines an API to track
* the status of the current sessions ("users logged on") on the system.
*/
public interface SessionLoggingService {
public enum Type {
LOGIN,
LOGOUT
}
public enum CausedBy {
USER,
SESSION_EXPIRATION,
RESTART
}
@Programmatic
void log(Type type, String username, Date date, CausedBy causedBy, String sessionId);
public static class Stderr implements SessionLoggingService {
@Override
public void log(final Type type, final String username, final Date date, final CausedBy causedBy, final String sessionId) {
final StringBuilder logMessage = new StringBuilder();
logMessage.append("User '").append(username);
logMessage.append("' with sessionId '").append(sessionId)
.append("' has logged ");
if (type == Type.LOGIN) {
logMessage.append("in");
} else {
logMessage.append("out");
}
logMessage.append(" at '").append(date).append("'.");
if (causedBy == CausedBy.SESSION_EXPIRATION) {
logMessage.append("Cause: session expiration");
}
System.err.println(logMessage);
}
}
}