cvs commit: cocoon-2.2/src/kernel/org/apache/cocoon/kernel CoreWirings.java

[pier]

pier        2004/05/03 13:42:02

  Added:       src/kernel/org/apache/cocoon/kernel CoreWirings.java
  Log:
  Expose the "Wirings" interface through the deployer to externally access
  resources and components provided by blocks.
  
  Revision  Changes    Path
  1.1                  
cocoon-2.2/src/kernel/org/apache/cocoon/kernel/CoreWirings.java
  
  Index: CoreWirings.java
  ===================================================================
  /* ========================================================================== 
*
   * Copyright (C) 1996-2004 VNU Business Publications LTD. All rights reserved 
*
   * ========================================================================== 
*/
  package org.apache.cocoon.kernel;
  
  import org.apache.cocoon.kernel.composition.Wire;
  import org.apache.cocoon.kernel.composition.WiringException;
  import org.apache.cocoon.kernel.composition.Wirings;
  import org.apache.cocoon.kernel.resolution.Resource;
  
  /**
   * <p></p> 
   *
   * @version CVS $Revision: 1.1 $
   * @author <a href="mailto:[EMAIL PROTECTED]">Pier Fumagalli</a>
   * @author Copyright &copy; 1996-2004 <a href="http://www.vnunet.com/";>VNU
   *         Business Publications LTD.</a> All rights reserved
   */
  public class CoreWirings implements Wirings {
      
        KernelDeployer deployer = null;
  
        /**
         * <p>Create a new [EMAIL PROTECTED] CoreWirings} instance associated 
with a specified
       * [EMAIL PROTECTED] KernelDeployer}.</p>
       * 
       * @param deployer a <b>non null</b> [EMAIL PROTECTED] KernelDeployer} 
instance.
       * @throws NullPointerException if the specified deployer was <b>null</b>.
         */
        public CoreWirings(KernelDeployer deployer) {
                super();
          if (deployer == null) throw new NullPointerException("Null deployer");
          this.deployer = deployer;
        }
  
        public Wire lookup(Class role, String name) throws WiringException {
          /* Fail if either name or role are null */
          if (name == null) throw new WiringException("No name specified");
          if (role == null) throw new WiringException("No role specified");
          
          /* Look in our component wirings for the key matching the name */
          DeployedWirings target = this.deployer.lookup(name);
          if (target != null) return(target.newWire(role, 
target.getResolver()));
  
          /* Wrong wiring name specified */
          throw new WiringException("Unknown wiring \"" + name + "\"");
        }
  
        public Resource resolve(String name) {
                return null;
        }
  }