com.liferay.tich.util.EventsWebCacheItem.java Source code

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Here is the source code for com.liferay.tich.util.EventsWebCacheItem.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.tich.util;

import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.HtmlUtil;
import com.liferay.portal.kernel.util.HttpUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Time;
import com.liferay.portal.kernel.webcache.WebCacheException;
import com.liferay.portal.kernel.webcache.WebCacheItem;
import com.liferay.tich.model.Event;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Brian Wing Shun Chan
 */
public class EventsWebCacheItem implements WebCacheItem {

    @Override
    public Object convert(String key) throws WebCacheException {
        List<Event> events = new ArrayList<Event>();

        try {
            String text = HttpUtil.URLtoString("http://www.studylight.org/his/tich");

            int x = text.indexOf("<div class=\"border_bottom_medium\"");
            int y = text.indexOf("<p class=\"small\">", x);

            text = HtmlUtil.stripHtml(text.substring(x, y));

            String[] entries = StringUtil.split(text, "\n" + StringPool.DOUBLE_SPACE + "\n\t");

            for (String entry : entries) {
                String[] entryArray = StringUtil.split(entry, "\n\t");

                if (entryArray.length > 1) {
                    Event event = new Event(GetterUtil.getInteger(entryArray[0]), entryArray[1]);

                    events.add(event);
                }
            }
        } catch (Exception e) {
            throw new WebCacheException(e);
        }

        return events;
    }

    @Override
    public long getRefreshTime() {
        return _REFRESH_TIME;
    }

    private static final long _REFRESH_TIME = Time.HOUR;

}