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The Open Source version of the IBM Toolbox for Java
There is a newer version: 11.1
///////////////////////////////////////////////////////////////////////////////
//                                                                             
// JTOpen (IBM Toolbox for Java - OSS version)                              
//                                                                             
// Filename: PermissionAction.java
//                                                                             
// The source code contained herein is licensed under the IBM Public License   
// Version 1.0, which has been approved by the Open Source Initiative.         
// Copyright (C) 1997-2000 International Business Machines Corporation and     
// others. All rights reserved.                                                
//                                                                             
///////////////////////////////////////////////////////////////////////////////

package com.ibm.as400.vaccess;

import com.ibm.as400.access.IFSFile;
import com.ibm.as400.access.Trace;
import com.ibm.as400.access.Permission;

/**
The PermissionAction class defines a permission change action to be performed on a server resource.

Most errors are reported as ErrorEvents rather than throwing exceptions. Users should listen for ErrorEvents in
order to diagnose and recover from error conditions.

PermissionAction objects generate the following events:

 ErrorEvent
 VObjectEvent
 WorkingEvent

**/
class PermissionAction 
      implements VAction
{
  private static final String copyright = "Copyright (C) 1997-2000 International Business Machines Corporation and others.";

    /**
     *  Private variable representing whether the item is enabled on the popup menu.
     **/
    private boolean enabled_;

    /**
     * Private variable representing object whose permission will be displayed
     * and modified.
     **/
    private IFSFile file_;

    /**
     * Private variable representing event support.
     **/
    private ErrorEventSupport errorEventSupport_= new ErrorEventSupport(this);
    private VObjectEventSupport objectEventSupport_= new VObjectEventSupport(this);
    private WorkingEventSupport workingEventSupport_= new WorkingEventSupport(this);

    // The Permission object for this action.
    // @B1D private Permission permission_ = null;  //@A2C

    /**
     * Constructs a PermissionAction object.
     * @param file  The IFSFile object.
     **/
    public PermissionAction(IFSFile file)
    {
        enabled_= true;
        file_= file;

        // Postpone initializing the Permission object until it's needed.  //@A2C
    }

    /**
     * Adds a listener to be notified when an error occurs.
     * @param  listener    The listener.
    **/
    public void addErrorListener(ErrorListener listener)
    {
        errorEventSupport_.addErrorListener(listener);
    }

    /**
     * Adds a VObjectListener.
     * @param  listener    The listener.
     **/
    public void addVObjectListener(VObjectListener listener)
    {
        objectEventSupport_.addVObjectListener(listener);
    }

    /**
     * Adds a working listener.
     * @param  listener    The listener.
    **/

    public void addWorkingListener(WorkingListener listener)
    {
        workingEventSupport_.addWorkingListener(listener);
    }

    //@A2A
    /**
     * Returns the Permission object.
     * @return The Permission object.
     **/
    Permission getPermission()
    {
      // @B1D if (permission_ == null) {
        try {
          return new Permission (file_); // @B1C
        }
        catch(Exception e)
        {
          Trace.log(Trace.ERROR, "construct Permission : "+e);
          errorEventSupport_.fireError(e);
          return null;                  // @B1A
        }
      // @B1D }
      // @B1D return permission_;
    }

     /**
     * Returns the text.
     * @return The text that displays as an item in the popup menu .
    **/
    public String getText()
    {
        return ResourceLoader.getText("OBJECT_PERMISSION2"); // @C1C
    }

    /**
     * Indicates if the action is enabled.
     * @return True if the action is enabled.
     **/
    public boolean isEnabled()
    {
        return enabled_;
    }

    /**
     * Performs the action.
     * @param  vAction   The action context.
     **/
    public void perform(VActionContext vAction)
    {
        workingEventSupport_.fireStartWorking();
        PermissionMainPanel mainPanel = new PermissionMainPanel(getPermission()); //@A2C
        mainPanel.addErrorListener(errorEventSupport_);
        mainPanel.addWorkingListener(workingEventSupport_);
        mainPanel.addVObjectListener(objectEventSupport_);
        mainPanel.createPermissionMainPanel();
        workingEventSupport_.fireStopWorking();
    }

    /**
     * Removes an error listener.
     * @param  listener    The listener.
    **/
    public void removeErrorListener(ErrorListener listener)
    {
        errorEventSupport_.removeErrorListener(listener);
    }

    /**
     * Removes a VObjectListener.
     * @param  listener    The listener.
     **/
    public void removeVObjectListener(VObjectListener listener)
    {
        objectEventSupport_.removeVObjectListener(listener);
    }

    /**
     * Removes a working listener.
     * @param  listener    The listener.
    **/
    public void removeWorkingListener(WorkingListener listener)
    {
        workingEventSupport_.removeWorkingListener(listener);
    }

    /**
     * Sets the enabled state.
     * @param enable   True if a user can select it.
    **/
    public void setEnabled(boolean enable)
    {
        enabled_ = enable;
    }
}