datadatastoresselectform.java

电子地图服务器,搭建自己的地图服务

/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org.  All rights reserved.
 * This code is licensed under the GPL 2.0 license, availible at the root
 * application directory.
 */
package org.vfny.geoserver.form.data;

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.ActionMapping;
import org.apache.struts.util.MessageResources;
import org.vfny.geoserver.action.HTMLEncoder;
import org.vfny.geoserver.config.ConfigRequests;

import java.util.Collections;
import java.util.List;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;


/**
 * Select current DataStore for edit or delete Action.
 *
 * @author rgould, Refractions Research, Inc.
 * @author $Author: emperorkefka $ (last modification)
 * @author bowens, TOPP
 * @version $Id: DataDataStoresSelectForm.java 7234 2007-07-12 14:13:07Z aaime $
 */
public class DataDataStoresSelectForm extends ActionForm {
    /** Action that spawned us must be "edit" or "delete" */
    private String buttonAction;

    /** Selection from list - will be a dataStoreId */
    private String selectedDataStoreId;
    private List dataStoreIds;

    /**
     * Reset form
     *
     * @param mapping DOCUMENT ME!
     * @param request DOCUMENT ME!
     */
    public void reset(ActionMapping mapping, HttpServletRequest request) {
        super.reset(mapping, request);

        // Pass data from congif layer to screen
        dataStoreIds = ConfigRequests.getDataConfig(request).listDataStoreIds();
        Collections.sort(dataStoreIds);

        // Usual reset stuff
        selectedDataStoreId = null; // nothing selected yet        
        buttonAction = null; // updated when user submits form        
    }

    /**
     * Validate as required
     *
     * @param mapping DOCUMENT ME!
     * @param request DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
        ActionErrors errors = new ActionErrors();

        Locale locale = (Locale) request.getLocale();

        //MessageResources messages = servlet.getResources();
        //TODO: not sure about this, changed for struts 1.2.8 upgrade
        MessageResources messages = (MessageResources) request.getAttribute(Globals.MESSAGES_KEY);
        String EDIT = HTMLEncoder.decode(messages.getMessage(locale, "label.edit"));
        String DELETE = HTMLEncoder.decode(messages.getMessage(locale, "label.delete"));

        if (getSelectedDataStoreId() == null) {
            return errors; // no data in the list, so return
        }

        if (!getDataStoreIds().contains(getSelectedDataStoreId())) {
            errors.add("selectedDataStoreId",
                new ActionError("errors.factory.invalid", getSelectedDataStoreId()));
        }

        if (!DELETE.equals(getButtonAction()) && !EDIT.equals(getButtonAction())) {
            errors.add("buttonAction",
                new ActionError("errors.buttonAction.invalid", getButtonAction()));
        }

        return errors;
    }

    /**
     * List of current DataStoreIds
     *
     * @return DOCUMENT ME!
     */
    public List getDataStoreIds() {
        return dataStoreIds;
    }

    /**
     * DataStoreID selected by User.
     *
     * <p>
     * If the user has not selected anything (is this possible?) we will return
     * <code>null</code>.
     * </p>
     *
     * @return Selected DataStoreID or <code>null</code> if nothing is selected
     */
    public String getSelectedDataStoreId() {
        return selectedDataStoreId;
    }

    /**
     * The button the user hit to submit this form.
     *
     * <p>
     * We are doubling up and having the Same action process both Edit and
     * Delete.
     * </p>
     *
     * @return Either <code>edit</code> or <code>delete</code>
     */
    public String getButtonAction() {
        return buttonAction;
    }

    public void setButtonAction(String string) {
        buttonAction = string;
    }

    public void setSelectedDataStoreId(String string) {
        selectedDataStoreId = string;
    }
}