com.liferay.image.editor.hook.action.EditFileEntryAction.java Source code

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Here is the source code for com.liferay.image.editor.hook.action.EditFileEntryAction.java

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/**
 * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.image.editor.hook.action;

import com.liferay.portal.NoSuchImageException;
import com.liferay.portal.kernel.repository.model.FileEntry;
import com.liferay.portal.kernel.repository.model.FileVersion;
import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.struts.BaseStrutsPortletAction;
import com.liferay.portal.kernel.struts.StrutsPortletAction;
import com.liferay.portal.kernel.util.Constants;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.TempFileUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.service.ServiceContext;
import com.liferay.portal.service.ServiceContextFactory;
import com.liferay.portlet.assetpublisher.util.AssetPublisherUtil;
import com.liferay.portlet.documentlibrary.NoSuchFileEntryException;
import com.liferay.portlet.documentlibrary.model.DLFileEntry;
import com.liferay.portlet.documentlibrary.service.DLAppServiceUtil;

import java.io.File;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletConfig;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

/**
 * @author Roberto Daz
 */
public class EditFileEntryAction extends BaseStrutsPortletAction {

    @Override
    public void processAction(StrutsPortletAction originalStrutsPortletAction, PortletConfig portletConfig,
            ActionRequest actionRequest, ActionResponse actionResponse) throws Exception {

        String cmd = ParamUtil.getString(actionRequest, Constants.CMD);

        try {
            if (cmd.equals(Constants.EDIT)) {
                updateImage(actionRequest);
            } else {
                originalStrutsPortletAction.processAction(originalStrutsPortletAction, portletConfig, actionRequest,
                        actionResponse);
            }
        } catch (Exception e) {
            SessionErrors.add(actionRequest, e.getClass());
        } finally {
            String redirect = ParamUtil.getString(actionRequest, "redirect");

            actionResponse.sendRedirect(redirect);
        }
    }

    @Override
    public String render(StrutsPortletAction originalStrutsPortletAction, PortletConfig portletConfig,
            RenderRequest renderRequest, RenderResponse renderResponse) throws Exception {

        return originalStrutsPortletAction.render(portletConfig, renderRequest, renderResponse);
    }

    protected void updateImage(ActionRequest actionRequest) throws Exception {
        long fileEntryId = ParamUtil.getLong(actionRequest, "fileEntryId");

        if (fileEntryId == 0) {
            throw new NoSuchFileEntryException();
        }

        FileEntry fileEntry = DLAppServiceUtil.getFileEntry(fileEntryId);

        String blob = ParamUtil.getString(actionRequest, "blob");

        if (Validator.isNull(blob)) {
            throw new NoSuchImageException();
        }

        String mimeType = fileEntry.getMimeType();

        FileVersion latestFileVersion = fileEntry.getLatestFileVersion();

        String extension = latestFileVersion.getExtension();

        File imageFile = ActionUtil.getImageFromBlob(blob, extension);

        FileEntry tempFileEntry = TempFileUtil.addTempFile(fileEntry.getGroupId(), fileEntry.getUserId(),
                fileEntry.getTitle() + fileEntry.getVersion(), _TEMP_FOLDER_NAME, imageFile, mimeType);

        try {
            ServiceContext serviceContext = ServiceContextFactory.getInstance(actionRequest);

            String sourceFileName = fileEntry.getTitle();

            if (!sourceFileName.endsWith(extension)) {
                sourceFileName.concat(extension);
            }

            fileEntry = DLAppServiceUtil.updateFileEntry(fileEntryId, sourceFileName, mimeType,
                    fileEntry.getTitle(), fileEntry.getDescription(), ActionUtil.getChangeLog(actionRequest), false,
                    imageFile, serviceContext);

            AssetPublisherUtil.addAndStoreSelection(actionRequest, DLFileEntry.class.getName(),
                    fileEntry.getFileEntryId(), -1);

            AssetPublisherUtil.addRecentFolderId(actionRequest, DLFileEntry.class.getName(),
                    fileEntry.getFolderId());

            return;
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (tempFileEntry != null) {
                TempFileUtil.deleteTempFile(tempFileEntry.getFileEntryId());
            }
        }
    }

    private static final String _TEMP_FOLDER_NAME = EditFileEntryAction.class.getName();

}