spring security SessionInformation 源码
spring security SessionInformation 代码
文件路径：/core/src/main/java/org/springframework/security/core/session/SessionInformation.java
/*
* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
*
* 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
*
* https://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.springframework.security.core.session;
import java.io.Serializable;
import java.util.Date;
import org.springframework.security.core.SpringSecurityCoreVersion;
import org.springframework.util.Assert;
/**
* Represents a record of a session within the Spring Security framework.
* <p>
* This is primarily used for concurrent session support.
* <p>
* Sessions have three states: active, expired, and destroyed. A session can that is
* invalidated by <code>session.invalidate()</code> or via Servlet Container management is
* considered "destroyed". An "expired" session, on the other hand, is a session that
* Spring Security wants to end because it was selected for removal for some reason
* (generally as it was the least recently used session and the maximum sessions for the
* user were reached). An "expired" session is removed as soon as possible by a
* <code>Filter</code>.
*
* @author Ben Alex
*/
public class SessionInformation implements Serializable {
private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
private Date lastRequest;
private final Object principal;
private final String sessionId;
private boolean expired = false;
public SessionInformation(Object principal, String sessionId, Date lastRequest) {
Assert.notNull(principal, "Principal required");
Assert.hasText(sessionId, "SessionId required");
Assert.notNull(lastRequest, "LastRequest required");
this.principal = principal;
this.sessionId = sessionId;
this.lastRequest = lastRequest;
}
public void expireNow() {
this.expired = true;
}
public Date getLastRequest() {
return this.lastRequest;
}
public Object getPrincipal() {
return this.principal;
}
public String getSessionId() {
return this.sessionId;
}
public boolean isExpired() {
return this.expired;
}
/**
* Refreshes the internal lastRequest to the current date and time.
*/
public void refreshLastRequest() {
this.lastRequest = new Date();
}
}
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