CloneableSecurityContext.java

/* vim: set ts=2 et sw=2 cindent fo=qroca: */

package com.globant.katari.core.security;

import org.acegisecurity.context.SecurityContextImpl;

/** SecurityContext implementation to support cloning.
 *
 * This is used in HttpSessionContextIntegrationFilter to clone the
 * SecurityContext instance found in the session. This is used to guarantee
 * that the SecurityContext always contains a valid authority.
 *
 * Without this, two threads hitting the same session object may incur in a
 * race condition, because they will be modifying the same SecurityContext.
 */
public class CloneableSecurityContext extends SecurityContextImpl
  implements Cloneable {

  /** The serial version id.
   */
  private static final long serialVersionUID = 1L;

/** {@inheritDoc}
   */
  @Override
  public CloneableSecurityContext clone()
      throws CloneNotSupportedException {
    return (CloneableSecurityContext) super.clone();
  }
}