FeedEntryDaoImpl.java

/*
 *  Copyright 2012 Eric F. Savage, code@efsavage.com
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package com.ajah.syndicate.data;

import java.util.List;

import org.springframework.stereotype.Repository;

import com.ajah.spring.jdbc.AbstractAjahDao;
import com.ajah.spring.jdbc.criteria.Criteria;
import com.ajah.spring.jdbc.criteria.SubCriteria;
import com.ajah.spring.jdbc.err.DataOperationException;
import com.ajah.syndicate.FeedEntry;
import com.ajah.syndicate.FeedEntryId;
import com.ajah.syndicate.FeedSourceId;

/**
 * Dao for {@link FeedEntry}s.
 * 
 * @author <a href="http://efsavage.com">Eric F. Savage</a>, <a
 *         href="mailto:code@efsavage.com">code@efsavage.com</a>.
 * 
 */
@Repository
public class FeedEntryDaoImpl extends AbstractAjahDao<FeedEntryId, FeedEntry, FeedEntry> implements FeedEntryDao {

	/**
	 * {@inheritDoc}
	 */
	@Override
	public FeedEntry findByHtmlUrlSha1(final FeedSourceId feedSourceId, final String htmlUrlSha1) throws DataOperationException {
		return find(new Criteria().eq("feed_source_id", feedSourceId).eq("html_url_sha_1", htmlUrlSha1));
	}

	/**
	 * {@inheritDoc}
	 * 
	 * @throws DataOperationException
	 */
	@Override
	public FeedEntry findMatch(final FeedSourceId feedSourceId, final String htmlUrlSha1, final String contentSha1) throws DataOperationException {
		return find(new Criteria().eq(feedSourceId).eq("html_url_sha_1", htmlUrlSha1).eq("content_sha_1", contentSha1));
	}

	/**
	 * @see com.ajah.syndicate.data.FeedEntryDao#list(FeedSourceId, String[],
	 *      boolean)
	 */
	@Override
	public List<FeedEntry> list(final FeedSourceId feedSourceId, final String[] categories, final boolean orCategories) throws DataOperationException {
		final Criteria criteria = new Criteria().eq(feedSourceId);
		if (categories != null && categories.length > 0) {
			if (orCategories) {
				final SubCriteria subCriteria = new SubCriteria();
				for (final String category : categories) {
					final String pattern = "%" + category + "%";
					subCriteria.orLike("categories", pattern);
				}
				criteria.and(subCriteria);
			} else {
				for (final String category : categories) {
					final String pattern = "%" + category + "%";
					criteria.like("categories", pattern);
				}
			}
		}
		return super.list(criteria);
	}

}