Example usage for javax.persistence EntityTransaction setRollbackOnly

List of usage examples for javax.persistence EntityTransaction setRollbackOnly

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Introduction

In this page you can find the example usage for javax.persistence EntityTransaction setRollbackOnly.

Prototype

public void setRollbackOnly();

Source Link

Document

Mark the current resource transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

Usage

From source file:com.pocketgorilla.stripesem.TransactionFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    if (log.isDebugEnabled())
        log.debug("filtering " + ((HttpServletRequest) request).getRequestURI());

    try {/*  www .  j a  v a  2 s  .c  o m*/
        chain.doFilter(request, response);
    } catch (Exception ex) {
        try {
            EntityManager em = provider.getEntityManager(false);
            if (em != null) {
                EntityTransaction tx = em.getTransaction();
                if (tx.isActive()) {
                    tx.setRollbackOnly();
                }
            }
        } finally {
            throw new ServletException(ex);
        }
    } finally {
        doAfter();
    }
}

From source file:name.livitski.tools.persista.TransactionalWork.java

/**
 * Performs the {@link #code database operations} provided by
 * the subclass in JPA transactional brackets. If there is currently
 * no active transaction at the entity manager, a new transaction
 * is started./*from   w w  w  . j a v  a2s  . co  m*/
 * If the code finishes normally and does not request the rollback,
 * the transaction is committed if it was started by this method
 * (local transaction).
 * If the implementor's code throws an exception or requests the
 * rollback, the local transaction is rolled back and any ongoing
 * transaction is marked
 * {@link EntityTransaction#setRollbackOnly() rollback-only}.
 * @param db the entity manager the operation will be performed with
 * @return <code>true</code> if the transaction has or may still
 * be committed
 * @throws AbstractStorageException indicates an error during
 * the operation
 * @throws RuntimeException any unchecked implementor's exceptions
 * will be rethrown
 * @see EntityManager#getTransaction()
 */
public boolean exec(final EntityManager db) throws AbstractStorageException {
    final EntityTransaction transaction = db.getTransaction();
    boolean commit = false;
    Exception status = null;
    boolean localTransaction;
    if (transaction.isActive())
        localTransaction = false;
    else {
        transaction.begin();
        localTransaction = true;
    }
    try {
        commit = code(db);
        return commit;
    } catch (AbstractStorageException fault) {
        status = fault;
        throw fault;
    } catch (RuntimeException fault) {
        status = fault;
        throw fault;
    } finally {
        if (!localTransaction) {
            if (commit)
                db.flush();
            else
                transaction.setRollbackOnly();
        } else if (!commit || transaction.getRollbackOnly()) {
            try {
                transaction.rollback();
            } catch (RuntimeException fault) {
                if (null != status)
                    log().error("Transaction rollback failed", fault);
                else
                    throw fault;
            }
        } else // commit local transaction
        {
            try {
                transaction.commit();
            } catch (RuntimeException fault) {
                throw fault;
            }
        }
    }
}

From source file:com.espirit.moddev.examples.uxbridge.newswidget.jpa.ArticleHandler.java

/**
 * Deletes every article older than the creationTime of the UXBEntity
 *
 * @param entity Entity containing the expireDate (= createTime of the entity)
 *///from   w  w w .  j  a v  a  2  s  . co  m
public void cleanup(UXBEntity entity) throws Exception {

    EntityManager em = null;
    EntityTransaction tx = null;
    try {

        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();

        Query query = em.createQuery(new StringBuilder()
                .append("SELECT x FROM article x WHERE x.lastmodified<:expiredate ").toString());
        query.setParameter("expiredate", entity.getCreateTime());

        if (!query.getResultList().isEmpty()) {
            for (Object obj : query.getResultList()) {
                Article art = (Article) obj;
                em.remove(art);
            }
        }
        tx.commit();
    } catch (Exception e) {
        if (tx != null) {
            tx.setRollbackOnly();
            throw e;
        }
        logger.error("Failure while deleting from the database", e);
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }

}

From source file:com.eucalyptus.blockstorage.BlockStorageController.java

private static boolean isSnapshotMarkedFailed(String snapshotId) {
    EntityTransaction db = Entities.get(SnapshotInfo.class);
    db.setRollbackOnly();
    try {/* w w w.  j a va  2 s  . c om*/
        SnapshotInfo snap = Entities.uniqueResult(new SnapshotInfo(snapshotId));
        if (snap != null && StorageProperties.Status.failed.toString().equals(snap.getStatus())) {
            return true;
        }
    } catch (Exception e) {
        LOG.error("Error determining status of snapshot " + snapshotId);
    } finally {
        db.rollback();
    }
    return false;
}

From source file:com.espirit.moddev.examples.uxbridge.newswidget.jpa.ArticleHandler.java

/**
 * Deletes a news article from the db//from   w  ww. jav a  2s  .  c  o m
 *
 * @param entity The article to delete
 */
public void delete(UXBEntity entity) throws Exception {

    EntityManager em = null;
    EntityTransaction tx = null;
    try {

        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();

        //         Query query = em.createQuery(new StringBuilder().append("SELECT x FROM Article x WHERE x.aid = ").append(entity.getUuid()).append(" AND x.language='").append(entity.getLanguage()).append("'").toString());
        Query query = em.createQuery(new StringBuilder()
                .append("SELECT x FROM article x WHERE x.aid = :fsid AND x.language=:language").toString());
        query.setParameter("fsid", Long.parseLong(entity.getUuid()));
        query.setParameter("language", entity.getLanguage());

        if (!query.getResultList().isEmpty()) {
            Article art = (Article) query.getSingleResult();
            em.remove(art);
        }
        tx.commit();
    } catch (Exception e) {
        if (tx != null) {
            tx.setRollbackOnly();
            throw e;
        }
        logger.error("Failure while deleting from the database", e);
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }
}

From source file:com.espirit.moddev.examples.uxbridge.newswidget.jpa.ArticleHandler.java

/**
 * Add or update a news article in the db
 *
 * @param entity The NewsItem/*from ww  w . j a va  2  s .  c o m*/
 */
public void add(UXBEntity entity) throws Exception {

    Article art = buildArticle(entity);

    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();

        Query query = em.createQuery(new StringBuilder()
                .append("SELECT x FROM article x WHERE x.aid = :fsid AND x.language=:language").toString());
        query.setParameter("fsid", art.getAid());
        query.setParameter("language", art.getLanguage());

        /*
        * If the item exists in the db, we update the content and the title of the existing item
        */
        if (query.getResultList().size() > 0) {
            Article db = (Article) query.getSingleResult();
            db.setContent(art.getContent());
            db.setTitle(art.getTitle());
            db.setUrl(art.getUrl());
            db.setCreated(art.getCreated());
            db.setAid(art.getAid());
            db.setLanguage(art.getLanguage());
            db.setVersion(art.getVersion());
            db.setLastmodified(art.getLastmodified());

            art = db;
        }
        // save to db
        em.persist(art);
        em.flush();

        tx.commit();
    } catch (Exception e) {
        if (tx != null) {
            tx.setRollbackOnly();
            throw e;
        }
        logger.error("Failure while writing to the database", e);
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }
}

From source file:com.espirit.moddev.examples.uxbridge.newsdrilldown.jpa.NewsHandler.java

/**
 * handle the update and save process.//w  w w .  j a v  a  2s .c o  m
 *
 * @param entity the newsdrilldown entity
 * @throws Exception the exception
 */
private void handle(UXBEntity entity) throws Exception {
    /**
     * Due to a hibernate problem when updating or saving a newsdrilldown with
     * related categories we have to perform these step for saving the newsdrilldown
     *
     * 1. save/update all categories and remove them from the newsdrilldown
     *    1.1 save/update all metaCategories and remove them from the categories
     *    1.2 save the categories
     *    1.3 read all metaCategories to the categories
     *    1.4 save the categories again to create the relations
     * 2. save the newsdrilldown
     * 3. read all categories to the newsdrilldown
     */

    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        News news = buildNews(entity);
        List<Long> categories = new ArrayList<Long>();

        /*
        * 1. update or save all categories
        * Steps 1.1 - 1.4
        */
        if (news.getCategories() != null && !news.getCategories().isEmpty()) {
            for (NewsCategory cat : news.getCategories()) {
                cat = saveNewsCategory(cat);
                if (!categories.contains(cat.getFs_id())) {
                    categories.add(cat.getFs_id());
                }
            }
            news.setCategories(new ArrayList<NewsCategory>());
        }

        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();

        // 2. save the newsdrilldown
        news = saveNews(news, em);

        // 3. read all categories to the newsdrilldown
        if (!categories.isEmpty()) {
            for (Long cat : categories) {
                NewsCategory ncat = getNewsCategory(cat, news.getLanguage(), em);
                news.getCategories().add(ncat);
            }
        }

        tx.commit();

    } catch (Exception e) {
        if (tx != null && tx.isActive()) {
            tx.setRollbackOnly();
        }
        throw e;
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }

}

From source file:com.espirit.moddev.examples.uxbridge.newsdrilldown.jpa.NewsHandler.java

/**
 * Deletes every item older than the creationTime of the UXBEntity.
 *
 * @param entity Entity containing the expireDate (= createTime of the entity)
 *//*w ww.  ja v a 2  s .co m*/
public void cleanup(UXBEntity entity) throws Exception {

    EntityManager em = null;
    EntityTransaction tx = null;
    try {

        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();

        // Remove old newsdrilldown
        Query query = em.createQuery(new StringBuilder()
                .append("SELECT x FROM news x WHERE x.lastmodified<:expiredate ").toString());
        query.setParameter("expiredate", entity.getCreateTime());

        if (!query.getResultList().isEmpty()) {
            for (Object obj : query.getResultList()) {
                News art = (News) obj;
                em.remove(art);
            }
        }

        // Remove old newsCategories
        query = em.createQuery(new StringBuilder()
                .append("SELECT x FROM category x WHERE x.lastmodified<:expiredate ").toString());
        query.setParameter("expiredate", entity.getCreateTime());

        if (!query.getResultList().isEmpty()) {
            for (Object obj : query.getResultList()) {
                NewsCategory art = (NewsCategory) obj;
                em.remove(art);
            }
        }

        // Remove old newsMetaCategories
        query = em.createQuery(new StringBuilder()
                .append("SELECT x FROM metaCategory x WHERE x.lastmodified<:expiredate ").toString());
        query.setParameter("expiredate", entity.getCreateTime());

        if (!query.getResultList().isEmpty()) {
            for (Object obj : query.getResultList()) {
                NewsMetaCategory art = (NewsMetaCategory) obj;
                em.remove(art);
            }
        }

        tx.commit();
    } catch (Exception e) {
        if (tx != null && tx.isActive()) {
            tx.setRollbackOnly();
        }
        logger.error("Failure while deleting from the database", e);
        throw e;
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }
}

From source file:com.espirit.moddev.examples.uxbridge.newsdrilldown.jpa.NewsHandler.java

/**
 * saves or updates a newscategory.//from   www.  j  av  a  2s  .  c  o m
 *
 * @param category the category
 * @return the category with the new id
 * @throws Exception the exception
 */
private NewsCategory saveNewsCategory(NewsCategory category) throws Exception {

    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        // try loading the category for the firstspirit id
        NewsCategory cat = getNewsCategory(category.getFs_id(), category.getLanguage(), em);

        if (cat != null) {

            List<NewsMetaCategory> metaCats = category.getMetaCategories();

            // the already persistent categories
            List<NewsMetaCategory> original_metaCats = cat.getMetaCategories();

            // update existing category
            cat.setMetaCategories(new ArrayList<NewsMetaCategory>());

            for (NewsMetaCategory metaCat : metaCats) {
                metaCat = saveNewsMetaCategory(metaCat, em);
                cat.getMetaCategories().add(metaCat);

                original_metaCats.remove(metaCat);
            }
            for (NewsMetaCategory mc : original_metaCats) {
                mc.setLastmodified(category.getLastmodified());
            }
            cat.getMetaCategories().addAll(original_metaCats);

            cat.setFs_id(category.getFs_id());
            cat.setLanguage(category.getLanguage());
            cat.setName(category.getName());
            cat.setVersion(category.getVersion());
            cat.setLastmodified(category.getLastmodified());

            // update
            category = em.merge(cat);
        } else {
            updateMetaCategories(category, em);
            // save to db
            em.persist(category);
        }

        tx.commit();

        return category;

    } catch (Exception e) {
        if (tx != null && tx.isActive()) {
            tx.setRollbackOnly();
        }
        logger.error("", e);
        throw e;
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }
}

From source file:com.espirit.moddev.examples.uxbridge.newsdrilldown.jpa.NewsHandler.java

/**
 * Deletes a newsdrilldown from the db.//  w ww.  ja v a2s  .  c om
 *
 * @param entity The newsdrilldown to delete
 */
public void delete(UXBEntity entity) throws Exception {

    EntityManager em = null;
    EntityTransaction tx = null;
    try {

        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();

        Query query = em.createQuery(new StringBuilder()
                .append("FROM news x WHERE x.fs_id = :fs_id AND x.language = :language").toString());
        query.setParameter("fs_id", Long.parseLong(entity.getUuid()));
        query.setParameter("language", entity.getLanguage());

        if (!query.getResultList().isEmpty()) {
            News art = (News) query.getSingleResult();
            // delete file from filesystem
            URL url = new URL(art.getUrl());
            File file = new File(webpath + url.getPath());
            if (file.exists()) {
                // Try acquiring the lock without blocking. This method returns
                // null or throws an exception if the file is already locked.
                try {
                    FileChannel channel = new RandomAccessFile(file, "rw").getChannel();
                    // Try to lock the file
                    FileLock lock = channel.tryLock();
                    // Delete the file
                    file.delete();
                    // Release the lock
                    lock.release();
                    lock.channel().close();
                } catch (OverlappingFileLockException e) {
                    logger.info("File is already locked in this thread or virtual machine");
                } catch (MalformedURLException e) {
                    logger.info("wrong url", e);
                }
            }
            // remove article from content repository

            em.remove(art);
        }
        tx.commit();
    } catch (Exception e) {
        if (tx != null) {
            tx.setRollbackOnly();
        }
        throw e;
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }
}