com.nec.harvest.service.impl.InventoryCategoryServiceImpl.java Source code

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Here is the source code for com.nec.harvest.service.impl.InventoryCategoryServiceImpl.java

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/**
 * Copyright(C) 2014
 * NEC Corporation All rights reserved.
 * 
 * No permission to use, copy, modify and distribute this software
 * and its documentation for any purpose is granted.
 * This software is provided under applicable license agreement only.
 */
package com.nec.harvest.service.impl;

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

import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.StringUtils;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.nec.crud.hibernate.HibernateSessionManager;
import com.nec.harvest.exception.ServiceException;
import com.nec.harvest.model.InventoryCategory;
import com.nec.harvest.repository.InventoryCategoryRepository;
import com.nec.harvest.service.InventoryCategoryService;

/**
 * {@link InventoryCategoryService}
 * 
 * @author sondn
 *
 */
public class InventoryCategoryServiceImpl implements InventoryCategoryService {

    private InventoryCategoryRepository categoryRepository;

    public InventoryCategoryServiceImpl(InventoryCategoryRepository categoryRepository) {
        this.categoryRepository = categoryRepository;
    }

    /** {@inheritDoc} */
    @Override
    public InventoryCategory findByCategoryCode(String categoryId) throws ServiceException {
        if (StringUtils.isEmpty(categoryId)) {
            throw new ServiceException("Id must not be null");
        }

        final Session session = HibernateSessionManager.getSession();
        Transaction tx = null;

        InventoryCategory category = null;
        try {
            tx = session.beginTransaction();
            category = categoryRepository.get(session, categoryId);
            tx.commit();
        } catch (HibernateException ex) {
            if (tx != null) {
                tx.rollback();
            }
            throw new ServiceException("Could not find any inventory category maches with " + categoryId, ex);
        } finally {
            HibernateSessionManager.closeSession(session);
        }
        return category;
    }

    /** {@inheritDoc} */
    @Override
    public List<InventoryCategory> findByCategoryCodes(String... categories) throws ServiceException {
        if (ArrayUtils.isEmpty(categories)) {
            throw new ServiceException("Ids must not be null");
        }
        List<InventoryCategory> results = new ArrayList<>();
        for (String categoryCode : categories) {
            InventoryCategory category = findByCategoryCode(categoryCode);
            if (category != null) {
                results.add(category);
            }
        }
        return results;
    }

}