magoffin.matt.sobriquet.web.ImportController.java Source code

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Here is the source code for magoffin.matt.sobriquet.web.ImportController.java

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/* ===================================================================
 * ImportController.java
 * 
 * Created 9/08/2015 11:17:49 am
 * 
 * Copyright (c) 2015 Matt Magoffin.
 * 
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation; either version 2 of 
 * the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
 * 02111-1307 USA
 * ===================================================================
 */

package magoffin.matt.sobriquet.web;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpSession;
import magoffin.matt.sobriquet.api.AliasDao;
import magoffin.matt.sobriquet.api.IOService;
import magoffin.matt.sobriquet.domain.Alias;
import magoffin.matt.util.TemporaryFile;
import magoffin.matt.util.TemporaryFileMultipartFileEditor;
import magoffin.matt.web.Response;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.SessionAttributes;

/**
 * Import alaises.
 *
 * @author matt
 * @version 1.0
 */
@Controller
@SessionAttributes("importForm")
@RequestMapping("/import")
public class ImportController {

    @Autowired
    public IOService ioService;

    @Autowired
    public AliasDao aliasDao;

    @ModelAttribute("importForm")
    public ImportForm getFormBean() {
        return new ImportForm();
    }

    @InitBinder
    protected void initBinderAll(WebDataBinder binder) {
        // register our Multipart TemporaryFile binder and validator
        binder.registerCustomEditor(TemporaryFile.class, new TemporaryFileMultipartFileEditor(true));
    }

    /**
     * Begin the import process.
     * 
     * @param form
     *        The import data.
     * @param session
     *        The HTTP session. This is required so we can store the parsed data
     *        in memory to verify.
     * @return The response.
     * @throws IOException
     *         If any IO error occurs.
     */
    @RequestMapping(method = RequestMethod.POST, params = "_to=verify")
    @ResponseBody
    public Response<List<Alias>> verify(@ModelAttribute("importForm") ImportForm form, HttpSession session)
            throws IOException {
        Reader reader = null;
        if (form.getFile() != null && form.getFile().getSize() > 0) {
            reader = new InputStreamReader(form.getFile().getInputStream(), "UTF-8");
        } else {
            reader = new StringReader(form.getAliasData());
        }
        List<Alias> results = new ArrayList<Alias>();
        try {
            for (Alias alias : ioService.parseAliasRecords(reader)) {
                results.add(alias);
            }
            form.setAliases(results);
        } finally {
            try {
                reader.close();
            } catch (IOException e) {
                // ignore
            }
        }

        //form.setFile(null);
        return Response.response(results);
    }

    /**
     * Confirm the data previously imported via
     * {@link #verify(ImportForm, HttpSession)}.
     * 
     * @param form
     *        The imported data.
     * @return The response.
     */
    @RequestMapping(method = RequestMethod.POST, params = "_to=save")
    @ResponseBody
    public Response<Object> save(@ModelAttribute("importForm") ImportForm form) {
        if (form.getAliases() != null) {
            for (Alias alias : form.getAliases()) {
                aliasDao.store(alias);
            }
        }
        return Response.response(null);
    }

}