com.webpagebytes.cms.controllers.ExportImportController.java Source code

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Here is the source code for com.webpagebytes.cms.controllers.ExportImportController.java

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/*
 *   Copyright 2014 Webpagebytes
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

package com.webpagebytes.cms.controllers;

import java.io.File;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

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

import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.IOUtils;
import com.webpagebytes.cms.exception.WPBException;

public class ExportImportController extends Controller {
    private FlatStorageImporterExporter storageExporter;

    public ExportImportController() {
        storageExporter = new FlatStorageImporterExporter();
    }

    public void importContent(HttpServletRequest request, HttpServletResponse response, String requestUri)
            throws WPBException {
        File tempFile = null;
        try {
            ServletFileUpload upload = new ServletFileUpload();

            FileItemIterator iterator = upload.getItemIterator(request);
            while (iterator.hasNext()) {
                FileItemStream item = iterator.next();
                if (!item.isFormField() && item.getFieldName().equals("file")) {
                    InputStream is = item.openStream();
                    tempFile = File.createTempFile("wpbImport", null);
                    FileOutputStream fos = new FileOutputStream(tempFile);
                    IOUtils.copy(is, fos);
                    fos.close();

                    adminStorage.stopNotifications();
                    deleteAll();

                    // because the zip file entries cannot be predicted we needto import in two step1
                    // step 1 when we create the resource records
                    // step 2 when we import the files, pages, modules and articles content
                    InputStream is1 = new FileInputStream(tempFile);
                    storageExporter.importFromZipStep1(is1);
                    is1.close();

                    InputStream is2 = new FileInputStream(tempFile);
                    storageExporter.importFromZipStep2(is2);
                    is2.close();

                    org.json.JSONObject returnJson = new org.json.JSONObject();
                    returnJson.put(DATA, "");
                    httpServletToolbox.writeBodyResponseAsJson(response, returnJson, null);
                }
            }
        } catch (Exception e) {
            Map<String, String> errors = new HashMap<String, String>();
            errors.put("", WPBErrors.WB_CANNOT_IMPORT_PROJECT);
            httpServletToolbox.writeBodyResponseAsJson(response, jsonObjectConverter.JSONObjectFromMap(null),
                    errors);
        } finally {
            if (tempFile != null) {
                if (!tempFile.delete()) {
                    tempFile.deleteOnExit();
                }
            }

            adminStorage.startNotifications();
        }
    }

    public void exportContent(HttpServletRequest request, HttpServletResponse response, String requestUri)
            throws WPBException {

        try {
            response.setContentType("application/zip");

            storageExporter.exportToZip(response.getOutputStream());

        } catch (IOException e) {
            Map<String, String> errors = new HashMap<String, String>();
            errors.put("", WPBErrors.WB_CANNOT_EXPORT_PROJECT);
            httpServletToolbox.writeBodyResponseAsJson(response, jsonObjectConverter.JSONObjectFromMap(null),
                    errors);
        }
    }

}