com.liferay.portlet.amazonrankings.util.AmazonRankingsUtil.java Source code

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Here is the source code for com.liferay.portlet.amazonrankings.util.AmazonRankingsUtil.java

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/**
 * 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.amazonrankings.util;

import com.liferay.portal.kernel.util.DateFormatFactoryUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.TimeZoneUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.webcache.WebCacheItem;
import com.liferay.portal.kernel.webcache.WebCachePoolUtil;
import com.liferay.portal.util.PropsValues;
import com.liferay.portlet.amazonrankings.model.AmazonRankings;

import java.text.DateFormat;

import java.util.Calendar;

/**
 * @author Brian Wing Shun Chan
 */
public class AmazonRankingsUtil {

    public static String getAmazonAccessKeyId() {
        return PropsValues.AMAZON_ACCESS_KEY_ID;
    }

    public static String getAmazonAssociateTag() {
        return PropsValues.AMAZON_ASSOCIATE_TAG;
    }

    public static AmazonRankings getAmazonRankings(String isbn) {
        if (!Validator.isDigit(isbn)) {
            return null;
        }

        WebCacheItem wci = new AmazonRankingsWebCacheItem(isbn);

        return (AmazonRankings) WebCachePoolUtil.get(AmazonRankingsUtil.class.getName() + StringPool.PERIOD + isbn,
                wci);
    }

    public static String getAmazonSecretAccessKey() {
        return PropsValues.AMAZON_SECRET_ACCESS_KEY;
    }

    public static String getTimestamp() {
        DateFormat dateFormat = DateFormatFactoryUtil.getSimpleDateFormat(_TIMESTAMP);

        dateFormat.setTimeZone(TimeZoneUtil.getDefault());

        Calendar calendar = Calendar.getInstance();

        return dateFormat.format(calendar.getTime());
    }

    public static boolean isEnabled() {
        if (Validator.isNull(PropsValues.AMAZON_ACCESS_KEY_ID) || Validator.isNull(PropsValues.AMAZON_ASSOCIATE_TAG)
                || Validator.isNull(PropsValues.AMAZON_SECRET_ACCESS_KEY)) {

            return false;
        } else {
            return true;
        }
    }

    private static final String _TIMESTAMP = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

}