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


/**
 * Select current DataFormat for edit or delete Action.
 *
 *
 * @author $Author: Alessio Fabiani ([e-mail]) $ (last
 *         modification)
 * @author $Author: Simone Giannecchini ([e-mail]) $ (last
 *         modification)
 */
public final class CoverageStoresSelectForm extends ActionForm {
    /**
     *
     */
    private static final long serialVersionUID = 950236665044594046L;

    /**
     * Action that spawned us must be "edit" or "delete"
     */
    private String buttonAction;

    /**
     * Selection from list - will be a dataFormatId
     */
    private String selectedDataFormatId;

    /**
     *
     */
    private List dataFormatIds;

    /**
     * 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
        // REVIST: Bad Design JSP should lookup data itself!
        dataFormatIds = ConfigRequests.getDataConfig(request).listDataFormatIds();

        // Usual reset stuff
        selectedDataFormatId = 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 = (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 (!getDataFormatIds().contains(getSelectedDataFormatId())) {
            errors.add("selectedDataFormatId",
                new ActionError("errors.factory.invalid", getSelectedDataFormatId()));
        }

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

        return errors;
    }

    /**
     * List of current DataFormatIds
     *
     * @return DOCUMENT ME!
     */
    public List getDataFormatIds() {
        return dataFormatIds;
    }

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

    /**
     * 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 setSelectedDataFormatId(String string) {
        selectedDataFormatId = string;
    }
}