org.businessmanager.dao.StorageFileDaoImpl.java Source code

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Here is the source code for org.businessmanager.dao.StorageFileDaoImpl.java

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/*******************************************************************************
 * Copyright 2012 Christian Ternes and Thorsten Volland
 * 
 * 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 org.businessmanager.dao;

import java.util.List;

import javax.persistence.TypedQuery;

import org.businessmanager.domain.StorageFile;
import org.businessmanager.domain.StorageFile_;
import org.businessmanager.domain.security.User;
import org.businessmanager.service.filestorage.FileContentType;
import org.springframework.stereotype.Repository;

@Repository
public class StorageFileDaoImpl extends GenericDaoImpl<StorageFile> implements StorageFileDao {

    @Override
    public List<StorageFile> findAll() {
        return findAll(StorageFile_.id, true);
    }

    @Override
    public Class<StorageFile> getPersistenceClass() {
        return StorageFile.class;
    }

    @Override
    public StorageFile getLatestStorageFile(User user, String fileId) {
        TypedQuery<StorageFile> query = getEntityManager().createQuery(
                "FROM StorageFile s WHERE s.fileId = :fileId AND s.user = :user ORDER BY s.version DESC",
                StorageFile.class).setParameter("fileId", fileId).setParameter("user", user);

        List<StorageFile> resultList = query.getResultList();

        if (resultList.size() > 0) {
            return resultList.get(0);
        }

        return null;
    }

    @Override
    public StorageFile getStorageFile(User user, String fileId, Integer version) {
        TypedQuery<StorageFile> query = getEntityManager()
                .createQuery(
                        "FROM StorageFile s WHERE s.fileId = :fileId AND s.version = :version AND s.user = :user",
                        StorageFile.class)
                .setParameter("fileId", fileId).setParameter("version", version).setParameter("user", user);

        return query.getSingleResult();
    }

    @Override
    public List<StorageFile> getStorageFilesOfContentType(User user, FileContentType contentType) {

        TypedQuery<StorageFile> query = getEntityManager()
                .createQuery("FROM StorageFile s WHERE s.contentType = :contentType AND s.user = :user",
                        StorageFile.class)
                .setParameter("contentType", contentType).setParameter("user", user);

        return query.getResultList();
    }
}