org.zilverline.web.EditCollectionController.java Source code

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Here is the source code for org.zilverline.web.EditCollectionController.java

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/*
 * Copyright 2003-2004 Michael Franken, Zilverline.
 *
 * The contents of this file, or the files included with this file, are subject to
 * the current version of ZILVERLINE Collaborative Source License for the
 * Zilverline Search Engine (the "License"); You may not use this file except in
 * compliance with the License.
 *
 * You may obtain a copy of the License at
 *
 *     http://www.zilverline.org.
 *
 * See the License for the rights, obligations and
 * limitations governing use of the contents of the file.
 *
 * The Original and Upgraded Code is the Zilverline Search Engine. The developer of
 * the Original and Upgraded Code is Michael Franken. Michael Franken owns the
 * copyrights in the portions it created. All Rights Reserved.
 *
 */
package org.zilverline.web;

import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.validation.BindException;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.RequestUtils;
import org.springframework.web.servlet.ModelAndView;
import org.zilverline.core.DocumentCollection;
import org.zilverline.core.FileSystemCollection;
import org.zilverline.core.IMAPCollection;
import org.zilverline.core.IndexException;

/**
 * JavaBean form controller that is used to edit or delete a
 * <code>Collection</code>.
 * 
 * @author Michael Franken
 */
public class EditCollectionController extends AbstractZilverController {

    /**
     * Adjust the CommandClass based on the implementation used for
     * DocumentCollection.
     * 
     * @see org.springframework.web.servlet.mvc.AbstractFormController#formBackingObject(javax.servlet.http.HttpServletRequest)
     */
    protected Object formBackingObject(HttpServletRequest request) throws ServletException {
        // get the Collection (from the collectionManager) referred to by id in
        // the request
        DocumentCollection collection = collectionManager
                .getCollection(new Long(RequestUtils.getRequiredLongParameter(request, "collectionId")));
        if (collection instanceof IMAPCollection) {
            setFormView("collectionIMAPForm");
            setCommandClass(IMAPCollection.class);
            setValidator(null);
            return (IMAPCollection) collection;
        } else if (collection instanceof FileSystemCollection) {
            setFormView("collectionForm");
            setCommandClass(FileSystemCollection.class);
            setValidator(new CollectionValidator());
            return (FileSystemCollection) collection;
        }

        return (FileSystemCollection) collection;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.springframework.web.servlet.mvc.SimpleFormController#suppressValidation(javax.servlet.http.HttpServletRequest)
     */
    protected boolean suppressValidation(HttpServletRequest request) {
        if (request.getParameter("delete") != null) {
            log.debug(" Suppressing validation for Delete");
            return true;
        }
        return super.suppressValidation(request);
    }

    /** Method updates an existing DocumentCollection. */
    /*
     * (non-Javadoc)
     * 
     * @see org.springframework.web.servlet.mvc.SimpleFormController#onSubmit(javax.servlet.http.HttpServletRequest,
     *      javax.servlet.http.HttpServletResponse, java.lang.Object,
     *      org.springframework.validation.BindException)
     */
    protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object command,
            BindException errors) throws ServletException {
        DocumentCollection collection = (DocumentCollection) command;
        try {
            if (request.getParameter("delete") != null) {
                // delegate the delete to the service layer
                collectionManager.deleteCollection(collection);
            } else {
                // delegate the update to the service layer
                collection.init();
            }
            collectionManager.store();
        } catch (IndexException e) {
            throw new ServletException("Error initializing updated index in EditCollectionForm", e);
        }
        return new ModelAndView(getSuccessView());
    }
}