com.liferay.portlet.wiki.engines.jspwiki.LiferayAttachmentProvider.java Source code

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Here is the source code for com.liferay.portlet.wiki.engines.jspwiki.LiferayAttachmentProvider.java

Source

/**
 * Copyright (c) 2000-2012 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.portlet.wiki.engines.jspwiki;

import com.ecyrd.jspwiki.QueryItem;
import com.ecyrd.jspwiki.WikiEngine;
import com.ecyrd.jspwiki.WikiPage;
import com.ecyrd.jspwiki.attachment.Attachment;
import com.ecyrd.jspwiki.providers.ProviderException;
import com.ecyrd.jspwiki.providers.WikiAttachmentProvider;

import com.liferay.portal.kernel.io.unsync.UnsyncByteArrayInputStream;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portlet.wiki.service.WikiPageLocalServiceUtil;

import java.io.InputStream;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Properties;

/**
 * @author Jorge Ferrer
 */
public class LiferayAttachmentProvider implements WikiAttachmentProvider {

    public void deleteAttachment(Attachment attachment) {
    }

    public void deleteVersion(Attachment attachment) {
    }

    public Collection<Attachment> findAttachments(QueryItem[] query) {
        return Collections.emptyList();
    }

    public InputStream getAttachmentData(Attachment attachment) {
        return _EMPTY_STREAM;
    }

    public Attachment getAttachmentInfo(WikiPage page, String name, int version) throws ProviderException {

        com.liferay.portlet.wiki.model.WikiPage wikiPage = null;

        try {
            wikiPage = WikiPageLocalServiceUtil.getPage(_nodeId, page.getName());

            String[] attachments = wikiPage.getAttachmentsFiles();

            for (int i = 0; i < attachments.length; i++) {
                String fileName = FileUtil.getShortFileName(attachments[i]);

                if (fileName.equals(name)) {
                    return new Attachment(_engine, page.getName(), name);
                }
            }

            return null;
        } catch (Exception e) {
            throw new ProviderException(e.toString());
        }
    }

    public String getProviderInfo() {
        return LiferayAttachmentProvider.class.getName();
    }

    public List<Attachment> getVersionHistory(Attachment attachment) {
        List<Attachment> history = new ArrayList<Attachment>();

        history.add(attachment);

        return history;
    }

    public void initialize(WikiEngine engine, Properties props) {
        _engine = engine;
        _nodeId = GetterUtil.getLong(props.getProperty("nodeId"));
    }

    public List<Attachment> listAllChanged(Date timestamp) {
        return Collections.emptyList();
    }

    public Collection<Attachment> listAttachments(WikiPage page) {
        return Collections.emptyList();
    }

    public void moveAttachmentsForPage(String oldParent, String newParent) {
    }

    public void putAttachmentData(Attachment attachment, InputStream data) {
    }

    private static final InputStream _EMPTY_STREAM = new UnsyncByteArrayInputStream(new byte[0]);

    private WikiEngine _engine;
    private long _nodeId;

}