DownloadFileEntryPortletConfigurationIcon.java

/**
 * Copyright (c) 2000-present 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.document.library.web.internal.portlet.configuration.icon;

import com.liferay.document.library.kernel.util.DLUtil;
import com.liferay.document.library.web.constants.DLPortletKeys;
import com.liferay.document.library.web.internal.display.context.logic.FileEntryDisplayContextHelper;
import com.liferay.document.library.web.internal.portlet.action.ActionUtil;
import com.liferay.portal.kernel.language.LanguageUtil;
import com.liferay.portal.kernel.portlet.configuration.icon.BasePortletConfigurationIcon;
import com.liferay.portal.kernel.portlet.configuration.icon.PortletConfigurationIcon;
import com.liferay.portal.kernel.repository.model.FileEntry;
import com.liferay.portal.kernel.repository.model.FileVersion;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.WebKeys;

import javax.portlet.PortletRequest;
import javax.portlet.PortletResponse;

import org.osgi.service.component.annotations.Component;

/**
 * @author Roberto Díaz
 */
@Component(
	immediate = true,
	property = {
		"javax.portlet.name=" + DLPortletKeys.DOCUMENT_LIBRARY_ADMIN,
		"path=/document_library/view_file_entry"
	},
	service = PortletConfigurationIcon.class
)
public class DownloadFileEntryPortletConfigurationIcon
	extends BasePortletConfigurationIcon {

	@Override
	public String getMessage(PortletRequest portletRequest) {
		return LanguageUtil.get(
			getResourceBundle(getLocale(portletRequest)), "download");
	}

	@Override
	public String getMethod() {
		return "get";
	}

	@Override
	public String getURL(
		PortletRequest portletRequest, PortletResponse portletResponse) {

		ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
			WebKeys.THEME_DISPLAY);

		FileEntry fileEntry = null;
		FileVersion fileVersion = null;

		try {
			fileEntry = ActionUtil.getFileEntry(portletRequest);

			fileVersion = ActionUtil.getFileVersion(portletRequest, fileEntry);
		}
		catch (Exception e) {
			return null;
		}

		return DLUtil.getDownloadURL(
			fileEntry, fileVersion, themeDisplay, StringPool.BLANK);
	}

	@Override
	public double getWeight() {
		return 108;
	}

	@Override
	public boolean isShow(PortletRequest portletRequest) {
		ThemeDisplay themeDisplay = (ThemeDisplay)portletRequest.getAttribute(
			WebKeys.THEME_DISPLAY);

		try {
			FileEntry fileEntry = ActionUtil.getFileEntry(portletRequest);

			FileEntryDisplayContextHelper fileEntryDisplayContextHelper =
				new FileEntryDisplayContextHelper(
					themeDisplay.getPermissionChecker(), fileEntry);

			return fileEntryDisplayContextHelper.isDownloadActionAvailable();
		}
		catch (Exception e) {
		}

		return false;
	}

	@Override
	public boolean isToolTip() {
		return false;
	}

}