UserData.java 文件源码

/**
 * Returns whether the data within this UserData object is expired, and
 * thus must not be used, according to the timestamp returned by
 * getExpires().
 *
 * @return
 *     true if the data within this UserData object is expired and must not
 *     be used, false otherwise.
 */
@JsonIgnore
public boolean isExpired() {

    // Do not bother comparing if this UserData object does not expire
    Long expirationTimestamp = getExpires();
    if (expirationTimestamp == null)
        return false;

    // Otherwise, compare expiration timestamp against system time
    return System.currentTimeMillis() > expirationTimestamp;

}