cedric 01/10/08 06:40:14
Added: contrib/tiles/src/tutorial/org/apache/struts/example/tiles/dynPortal
SetPortalPrefsAction.java RetrievePortalAction.java
PortalPrefsForm.java
Log:
start dynamic portal example
Revision Changes Path
1.1
jakarta-struts/contrib/tiles/src/tutorial/org/apache/struts/example/tiles/dynPortal/SetPortalPrefsAction.java
Index: SetPortalPrefsAction.java
===================================================================
/*
*/
package org.apache.struts.example.tiles.dynPortal;
import org.apache.struts.tiles.*;
import java.io.IOException;
import java.util.Locale;
import java.util.Vector;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionServlet;
import org.apache.struts.util.MessageResources;
import org.apache.struts.util.RequestUtils;
/**
* Implementation of <strong>Action</strong> that populates an instance of
* <code>SubscriptionForm</code> from the currently specified subscription.
*
* @author Craig R. McClanahan
* @version $Revision: 1.1 $ $Date: 2001/10/08 13:40:14 $
*/
public final class SetPortalPrefsAction extends Action {
// --------------------------------------------------------- Public Methods
/**
* Process the specified HTTP request, and create the corresponding HTTP
* response (or forward to another web component that will create it).
* Return an <code>ActionForward</code> instance describing where and how
* control should be forwarded, or <code>null</code> if the response has
* already been completed.
*
* @param servlet The ActionServlet making this request
* @param mapping The ActionMapping used to select this instance
* @param actionForm The optional ActionForm bean for this request (if any)
* @param request The HTTP request we are processing
* @param response The HTTP response we are creating
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet exception occurs
*/
public ActionForward perform(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
System.out.println("Enter action SetPortalPrefsAction");
HttpSession session = request.getSession();
PortalPrefsForm prefsForm = (PortalPrefsForm)form;
// Try to retrieve tile context
ComponentContext context = ComponentContext.getContext( request );
if( context == null )
{
throw new ServletException( "This action must be called by a Tile, not
directly" );
}
// Get user portal list from user context
PortalSettings settings = RetrievePortalAction.getSettings( context, session );
if( prefsForm.isSubmitted() )
{ // read arrays
System.out.println("form submitted");
// Set settings cols according to user choice
for( int i=0;i<prefsForm.getNumCol(); i++)
{
settings.resetListAt( i, prefsForm.getNewCol(i));
} // end loop
//settings.resetListAt( 0, prefsForm.getL0());
//settings.resetListAt( 1, prefsForm.getL1());
prefsForm.reset();
return (mapping.findForward("portal"));
}
// Set lists values to be shown
for( int i=0;i<settings.getNumCols(); i++ )
{
prefsForm.addCol(settings.getListAt(i) );
prefsForm.addColLabels(settings.getListLabelAt(i) );
} // end loop
prefsForm.setChoices(settings.getChoices() );
prefsForm.setChoiceLabels(settings.getChoiceLabels() );
System.out.println("Exit action SetPortalPrefsAction");
return (mapping.findForward("preferences"));
}
}
1.1
jakarta-struts/contrib/tiles/src/tutorial/org/apache/struts/example/tiles/dynPortal/RetrievePortalAction.java
Index: RetrievePortalAction.java
===================================================================
/*
*/
package org.apache.struts.example.tiles.dynPortal;
import org.apache.struts.tiles.*;
import java.io.IOException;
import java.util.Locale;
//import java.util.Vector;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionServlet;
import org.apache.struts.util.MessageResources;
import org.apache.struts.util.RequestUtils;
/**
* Implementation of <strong>Action</strong> that populates an instance of
* <code>SubscriptionForm</code> from the currently specified subscription.
*
* @author Craig R. McClanahan
* @version $Revision: 1.1 $ $Date: 2001/10/08 13:40:14 $
*/
public final class RetrievePortalAction extends Action {
/** Name use to store settings in session context */
public static String USER_PORTAL_SETTINGS = "DynamicPortal.USER_PORTAL_SETTINGS";
/** Tile parameter name */
public static String PARAM_NUMCOLS = "numCols";
/** Tile parameter name */
public static String PARAM_LIST = "list";
/** Tile parameter name */
public static String PARAM_LIST_LABELS = "listLabels";
// --------------------------------------------------------- Public Methods
/**
* Process the specified HTTP request, and create the corresponding HTTP
* response (or forward to another web component that will create it).
* Return an <code>ActionForward</code> instance describing where and how
* control should be forwarded, or <code>null</code> if the response has
* already been completed.
*
* @param servlet The ActionServlet making this request
* @param mapping The ActionMapping used to select this instance
* @param actionForm The optional ActionForm bean for this request (if any)
* @param request The HTTP request we are processing
* @param response The HTTP response we are creating
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet exception occurs
*/
public ActionForward perform(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
System.out.println("Enter action RetrievePortalAction");
// Get current session.
HttpSession session = request.getSession();
// Try to retrieve tile context
ComponentContext context = ComponentContext.getContext( request );
if( context == null )
{
throw new ServletException( "This action must be called by a Tile, not
directly" );
}
// Get user portal list from user context
PortalSettings settings = getSettings( context, session );
// Set parameters for tiles
context.putAttribute( "numCols", Integer.toString(settings.getNumCols()) );
for( int i=0; i<settings.getNumCols(); i++ )
context.putAttribute( "list"+i, settings.getListAt(i) );
System.out.println("Exit action RetrievePortalAction");
return (mapping.findForward("success"));
}
/**
* Retrieve user setting from session.
* If settings are not found, initialized them.
*/
public static PortalSettings getSettings( ComponentContext context, HttpSession
session )
{
// Get user portal list from user context
PortalSettings settings = (PortalSettings)session.getAttribute(
USER_PORTAL_SETTINGS );
if( settings == null )
{ // List doesn't exist, create it and initialize it from Tiles parameters
settings = new PortalSettings();
settings.setNumCols( (String)context.getAttribute( PARAM_NUMCOLS ) );
for( int i=0; i<settings.getNumCols(); i++ )
{
List col = (List)context.getAttribute( ((String)PARAM_LIST+i) );
List labels = (List)context.getAttribute( ((String)PARAM_LIST_LABELS+i) );
settings.addChoices( col, labels );
settings.addList( col );
} // end loop
// Save user settings in session
session.setAttribute( USER_PORTAL_SETTINGS, settings);
} // end if
return settings;
}
}
1.1
jakarta-struts/contrib/tiles/src/tutorial/org/apache/struts/example/tiles/dynPortal/PortalPrefsForm.java
Index: PortalPrefsForm.java
===================================================================
/*
*/
package org.apache.struts.example.tiles.dynPortal;
import java.util.List;
import java.util.ArrayList;
import org.apache.struts.action.ActionForm;
/**
*/
public final class PortalPrefsForm extends ActionForm {
/** Validate value */
protected String validate;
/** empty list used by reset */
protected String[] empty = {};
/** list of "remaining" choices */
protected String[] remaining = empty;
/** list of user columns */
protected List columns = new ArrayList();
/** list of user columns labels */
protected List columnLabels = new ArrayList();
/** list of columns selected by user */
protected List newCols = new ArrayList();
/** Choice list */
protected List choice;
/** Choice list labels */
protected List choiceLabels;
/** Is initialized ? */
protected boolean initialized = false;
/**
* Set col
*/
public void setCol( int index, List col )
{
columns.set( index, col);
}
/**
* Add col
*/
public void addCol( List col )
{
columns.add( col);
}
/**
* Get col Labels
*/
public List getColLabels(int index)
{
return (List)columnLabels.get(index);
}
/**
* Set col Labels
*/
public void setColLabels( int index, List col )
{
columnLabels.set( index, col);
}
/**
* Add col Labels
*/
public void addColLabels( List col )
{
columnLabels.add( col);
}
/**
* Get col
*/
public List getCol(int index)
{
return (List)columns.get(index);
}
/**
* Set col Labels
*/
public void setNewCol( int index, String list[] )
{
// ensure capacity
while( index>=newCols.size())newCols.add(null);
newCols.set( index, list);
}
/**
* Get col
*/
public String[] getNewCol(int index)
{
if(newCols==null || index>=newCols.size())
return null;
return (String[])newCols.get(index);
}
/**
* Get number of columns
*/
public int getNumCol()
{
return newCols.size();
}
/**
* Set list1
*/
public void setL1( String array[] )
{
setNewCol(1, array);
}
/**
* Set list1
*/
public String[] getL1()
{
return getNewCol(1);
}
/**
* Set list1
*/
public void setL0( String array[] )
{
setNewCol(0, array);
}
/**
* Set list1
*/
public String[] getL0()
{
return getNewCol(0);
}
/**
* Set list1
*/
public void setRemaining( String array[] )
{
remaining = array;
}
/**
* Set list1
*/
public String[] getRemaining()
{
return remaining;
}
/**
* Set list1
*/
public void setChoices( List list )
{
choice = list;
}
/**
* Set list1
*/
public void setChoiceLabels( List list )
{
choiceLabels = list;
}
/**
* Set list1
*/
public List getChoices()
{
return choice;
}
/**
* Set list1
*/
public List getChoiceLabels()
{
return choiceLabels;
}
/**
* Is this form submitted ?
*/
public boolean isSubmitted()
{
return validate != null;
}
/**
* Is this form submitted ?
*/
public void setValidate( String value)
{
this.validate = value;
}
/**
* Reset properties
*/
public void reset()
{
remaining = empty;
validate = null;
columns.clear();
columnLabels.clear();
newCols.clear();
}
/**
* Initialized flag
*/
public boolean isInitialized()
{
return initialized;
}
/**
* Initialized flag
*/
public void setInitialized( boolean isInitialized)
{
initialized = isInitialized;
}
}
