UserFilter.java :  » ERP-CRM-Financial » OpenXava-3.0 » org » openxava » filters » Java Open Source

package org.openxava.filters;

import java.util.*;

import org.apache.commons.logging.*;
import org.openxava.util.*;

/**
 * Inserts the name of the current user as first parameter. <p>
 * 
 * @author Javier Paniza
 */

public class UserFilter implements IFilter {
  
  private static Log log = LogFactory.getLog(UserFilter.class);
  
  public Object filter(Object o) throws FilterException {
    if (o == null) {
      return new Object [] { getUser() };
    }    
    if (o instanceof Object []) {      
      List c = new ArrayList(Arrays.asList((Object []) o));
      c.add(0, getUser());
      return c.toArray();      
    } 
    else {
      return new Object [] { getUser(), o  };
    }    
  }

  /**
   * The user name used for filtering. <p>
   */
  protected String getUser() {    
    String user = Users.getCurrent();
    log.debug("Users.getCurrent()=" + user); //  tmp
    return user;
  }

}