基于Redis的CAS服务端集群
; import org.jasig.cas.ticket.ServiceTicket;import org.jasig.cas.ticket.Ticket;
import org.jasig.cas.ticket.TicketGrantingTicket;
import org.jasig.cas.ticket.registry.AbstractDistributedTicketRegistry;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.data.redis.core.RedisTemplate;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import java.util.Collection;
import java.util.concurrent.TimeUnit;
public final> /** Memcached client. */
@NotNull
private final RedisTemplate<String, Object> redisTemplate;
/**
* TGT cache entry timeout in seconds.
*/
@Min(0)
private final int tgtTimeout;
/**
* ST cache entry timeout in seconds.
*/
@Min(0)
private final int stTimeout;
public RedisTicketRegistry(RedisTemplate<String, Object> redisTemplate, int tgtTimeout, int stTimeout) {
this.redisTemplate = redisTemplate;
this.tgtTimeout = tgtTimeout;
this.stTimeout = stTimeout;
}
@Override
public void addTicket(Ticket ticket) {
logger.debug("Adding ticket {}", ticket);
try {
this.redisTemplate.opsForValue().set(ticket.getId(),ticket, getTimeout(ticket), TimeUnit.SECONDS);
} catch (Exception e) {
logger.error("Failed adding {}", ticket, e);
}
}
@Override
public Ticket getTicket(String ticketId) {
try {
final Ticket t = (Ticket) this.redisTemplate.opsForValue().get(ticketId);
if (t != null) {
return getProxiedTicketInstance(t);
}
} catch (final Exception e) {
logger.error("Failed fetching {} ", ticketId, e);
}
return null;
}
@Override
public boolean deleteTicket(String ticketId) {
if (ticketId == null) {
return false;
}
final Ticket ticket = getTicket(ticketId);
if (ticket == null) {
return false;
}
logger.debug("Deleting ticket {}", ticketId);
try {
this.redisTemplate.delete(ticketId);
} catch (final Exception e) {
logger.error("Failed deleting {}", ticketId, e);
}
return false;
}
@Override
protected void updateTicket(Ticket ticket) {
logger.debug("Updating ticket {}", ticket);
try {
if(this.redisTemplate.hasKey(ticket.getId())) {
this.redisTemplate.opsForValue().set(ticket.getId(), ticket, getTimeout(ticket), TimeUnit.SECONDS);
}
} catch (final Exception e) {
logger.error("Failed updating {}", ticket, e);
}
}
@Override
public Collection<Ticket> getTickets() {
throw new UnsupportedOperationException("GetTickets not supported.");
}
@Override
protected boolean needsCallback() {
return true;
}
@Override
public void destroy() throws Exception {
}
/**
* Gets the timeout value for the ticket.
*
* @param t the t
* @return the timeout
*/
private int getTimeout(final Ticket t) {
if (t instanceof TicketGrantingTicket) {
return this.tgtTimeout;
} else if (t instanceof ServiceTicket) {
return this.stTimeout;
}
throw new IllegalArgumentException("Invalid ticket type");
}
}
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