/*
* Created on Feb 16, 2004
*
* To change the template for this generated file go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
package org.vfny.geoserver.action.data;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.Globals;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.util.MessageResources;
import org.vfny.geoserver.action.ConfigAction;
import org.vfny.geoserver.action.HTMLEncoder;
import org.vfny.geoserver.config.DataConfig;
import org.vfny.geoserver.config.DataStoreConfig;
import org.vfny.geoserver.config.NameSpaceConfig;
import org.vfny.geoserver.form.data.DataNamespacesSelectForm;
import org.vfny.geoserver.global.UserContainer;
/**
* Select Namespaces for editing.
*
* @author rgould, Refractions Research, Inc.
* @author $Author: dmzwiers $ (last modification)
* @version $Id: DataNamespacesSelectAction.java,v 1.8 2004/03/01 19:47:45 dmzwiers Exp $
*/
public class DataNamespacesSelectAction extends ConfigAction {
public ActionForward execute(ActionMapping mapping, ActionForm form,
UserContainer user, HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
DataNamespacesSelectForm namespacesForm = (DataNamespacesSelectForm) form;
String action = namespacesForm.getAction();
DataConfig dataConfig = (DataConfig) getDataConfig();
NameSpaceConfig config = null;
Locale locale = (Locale) request.getLocale();
MessageResources messages = servlet.getResources();
String edit = HTMLEncoder.decode(messages.getMessage(locale, "label.edit"));
String delete = HTMLEncoder.decode(messages.getMessage(locale, "label.delete"));
String _default = HTMLEncoder.decode(messages.getMessage(locale, "label.default"));
String nsSelected = namespacesForm.getSelectedNamespace();
if(nsSelected.endsWith("*")){
nsSelected = nsSelected.substring(0,nsSelected.lastIndexOf("*"));
}
config = (NameSpaceConfig) dataConfig.getNameSpace(nsSelected);
if(config==null){
throw new NullPointerException();
}
getUserContainer(request).setNamespaceConfig(config);
if (action.equals(delete))
{
if (dataStoresUseNamespace(dataConfig,nsSelected))
{
//dont delete a namespace thats in use!
ActionErrors errors = new ActionErrors();
errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.namespace.namespaceInUse" ));
request.setAttribute(Globals.ERROR_KEY, errors);
return mapping.findForward("config.data.namespace");
}
dataConfig.removeNameSpace(nsSelected);
getApplicationState().notifyConfigChanged();
getUserContainer(request).setNamespaceConfig(null);
namespacesForm.reset(mapping, request);
return mapping.findForward("config.data.namespace");
}
if (action.equals(_default)) {
if(!nsSelected
.equals(dataConfig.getDefaultNameSpace().getPrefix())){
dataConfig.setDefaultNameSpace(dataConfig.getNameSpace(nsSelected));
getApplicationState().notifyConfigChanged();
}
getUserContainer(request).setNamespaceConfig(null);
namespacesForm.reset(mapping, request);
return mapping.findForward("config.data.namespace");
}
if( action.equals(edit)){
getUserContainer(request).setNamespaceConfig(config);
return mapping.findForward("config.data.namespace.editor");
}
ActionErrors errors = new ActionErrors();
errors.add("submit",
new ActionError("error.action.invalid", action ));
request.setAttribute(Globals.ERROR_KEY, errors);
return mapping.findForward("config.data.style");
}
/**
* return true if the namespace is being used by a datastore.
* You dont want to delete a namespace thats actually being used.
*
* @param dataConfig
* @param nsSelected
* @return
*/
private boolean dataStoresUseNamespace(DataConfig dataConfig, String nsSelected)
{
List stores = dataConfig.getDataStoreIds();
Iterator it = stores.iterator();
while (it.hasNext())
{
DataStoreConfig dsc = dataConfig.getDataStore( (String) it.next() );
if (dsc.getNameSpaceId().equals(nsSelected) )
return true;
}
return false;
}
}