com.liferay.document.library.web.internal.portlet.action.GetFileEntryMVCRenderCommand.java Source code

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Here is the source code for com.liferay.document.library.web.internal.portlet.action.GetFileEntryMVCRenderCommand.java

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/**
 * 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.action;

import com.liferay.document.library.kernel.exception.NoSuchFileEntryException;
import com.liferay.document.library.kernel.exception.NoSuchFileVersionException;
import com.liferay.portal.kernel.exception.NoSuchRepositoryEntryException;
import com.liferay.portal.kernel.portlet.bridges.mvc.MVCRenderCommand;
import com.liferay.portal.kernel.repository.model.FileEntry;
import com.liferay.portal.kernel.repository.model.FileVersion;
import com.liferay.portal.kernel.security.auth.PrincipalException;
import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.util.WebKeys;

import javax.portlet.PortletException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

/**
 * @author Sergio Gonzlez
 */
public abstract class GetFileEntryMVCRenderCommand implements MVCRenderCommand {

    @Override
    public String render(RenderRequest renderRequest, RenderResponse renderResponse) throws PortletException {

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

            renderRequest.setAttribute(WebKeys.DOCUMENT_LIBRARY_FILE_ENTRY, fileEntry);

            FileVersion fileVersion = ActionUtil.getFileVersion(renderRequest, fileEntry);

            String version = ParamUtil.getString(renderRequest, "version");

            if (Validator.isNotNull(version)) {
                renderRequest.setAttribute(WebKeys.DOCUMENT_LIBRARY_FILE_VERSION, fileVersion);
            }
        } catch (Exception e) {
            if (e instanceof NoSuchFileEntryException || e instanceof NoSuchFileVersionException
                    || e instanceof NoSuchRepositoryEntryException || e instanceof PrincipalException) {

                SessionErrors.add(renderRequest, e.getClass());

                return "/document_library/error.jsp";
            } else {
                throw new PortletException(e);
            }
        }

        return getPath();
    }

    protected abstract String getPath();

}