Example usage for javax.persistence EntityManager isOpen

Introduction

In this page you can find the example usage for javax.persistence EntityManager isOpen.

Prototype

public boolean isOpen();

Source Link

Document

Determine whether the entity manager is open.

Usage

From source file:org.apache.airavata.persistance.registry.jpa.ResourceUtils.java

/**
 * @param configkey/*from  w ww  . j a v  a2 s  .c  om*/
 */
public static void removeConfiguration(String configkey) throws RegistryException {
    QueryGenerator queryGenerator = new QueryGenerator(AbstractResource.CONFIGURATION);
    queryGenerator.setParameter(AbstractResource.ConfigurationConstants.CONFIG_KEY, configkey);
    EntityManager em = null;
    try {
        if (isConfigurationExist(configkey)) {
            em = getEntityManager();
            em.getTransaction().begin();
            Query q = queryGenerator.deleteQuery(em);
            q.executeUpdate();
            em.getTransaction().commit();
            em.close();
        }
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
}

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From source file:org.apache.airavata.persistance.registry.jpa.ResourceUtils.java

public static boolean isConfigurationExists(String configKey, String configVal) throws RegistryException {
    EntityManager em = null;
    try {//from   www.  j a va  2s .c  o m
        //Currently categoryID is hardcoded value
        em = ResourceUtils.getEntityManager();
        Configuration existing = em.find(Configuration.class, new Configuration_PK(configKey, configVal,
                AbstractResource.ConfigurationConstants.CATEGORY_ID_DEFAULT_VALUE));
        em.close();
        return existing != null;
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

public static ExperimentCatResource getGateway(String gatewayId) throws RegistryException {
    EntityManager em = null;
    try {//from w  w w .java2  s .c o  m
        if (isGatewayExist(gatewayId)) {
            em = getEntityManager();
            Gateway gateway = em.find(Gateway.class, gatewayId);
            GatewayResource gatewayResource = (GatewayResource) Utils.getResource(ResourceType.GATEWAY,
                    gateway);
            em.close();
            return gatewayResource;
        }
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
    return null;
}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

public static boolean isUserExist(String username, String gatewayId) throws RegistryException {
    EntityManager em = null;
    try {//  ww  w  .ja va  2  s.co  m
        em = getEntityManager();
        em.getTransaction().begin();
        QueryGenerator generator = new QueryGenerator(AbstractExpCatResource.USERS);
        generator.setParameter(AbstractExpCatResource.UserConstants.USERNAME, username);
        generator.setParameter(AbstractExpCatResource.UserConstants.GATEWAY_ID, gatewayId);
        Query q = generator.selectQuery(em);
        int size = q.getResultList().size();
        em.getTransaction().commit();
        em.close();
        return size > 0;
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

public static ExperimentCatResource getUser(String userName, String gatewayId) throws RegistryException {
    EntityManager em = null;
    try {// ww w. j a v  a  2  s . c o  m
        if (isUserExist(userName, gatewayId)) {
            em = getEntityManager();
            UserPK userPK = new UserPK();
            userPK.setUserName(userName);
            userPK.setGatewayId(gatewayId);
            Users user = em.find(Users.class, userPK);
            UserResource userResource = (UserResource) Utils.getResource(ResourceType.USER, user);
            em.close();
            return userResource;
        }
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
    return null;

}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

public static ExperimentCatResource getWorker(String gatewayId, String userName) throws RegistryException {
    EntityManager em = null;
    try {//ww  w  . j av  a 2 s  . c  om
        em = getEntityManager();
        GatewayWorkerPK gatewayWorkerPK = new GatewayWorkerPK();
        gatewayWorkerPK.setGatewayId(gatewayId);
        gatewayWorkerPK.setUserName(userName);
        GatewayWorker gatewayWorker = em.find(GatewayWorker.class, gatewayWorkerPK);
        WorkerResource workerResource = (WorkerResource) Utils.getResource(ResourceType.GATEWAY_WORKER,
                gatewayWorker);
        em.close();
        return workerResource;
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }

}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

/**
 * @param gatewayId//from  www.  j a va 2s  .com
 * @return
 */
public static boolean isGatewayExist(String gatewayId) throws RegistryException {
    EntityManager em = null;
    try {
        em = getEntityManager();
        em.getTransaction().begin();
        QueryGenerator generator = new QueryGenerator(AbstractExpCatResource.GATEWAY);
        generator.setParameter(AbstractExpCatResource.GatewayConstants.GATEWAY_ID, gatewayId);
        Query q = generator.selectQuery(em);
        int size = q.getResultList().size();
        em.getTransaction().commit();
        em.close();
        return size > 0;
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }

}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

public static List<ExperimentCatResource> getAllGateways() throws RegistryException {
    List<ExperimentCatResource> resourceList = new ArrayList<ExperimentCatResource>();
    EntityManager em = null;
    try {//from w  w w .ja  v  a2s  .  com
        em = getEntityManager();
        em.getTransaction().begin();
        QueryGenerator generator = new QueryGenerator(AbstractExpCatResource.GATEWAY);
        Query q = generator.selectQuery(em);
        List results = q.getResultList();
        if (results.size() != 0) {
            for (Object result : results) {
                Gateway gateway = (Gateway) result;
                GatewayResource gatewayResource = (GatewayResource) Utils.getResource(ResourceType.GATEWAY,
                        gateway);
                resourceList.add(gatewayResource);
            }
        }
        em.getTransaction().commit();
        em.close();
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
    return resourceList;
}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

/**
 * @param gatewayId/*from   w  w w.  j  a v  a 2 s.  c  o m*/
 * @return
 */
public static boolean removeGateway(String gatewayId) {
    EntityManager em = null;
    try {
        em = getEntityManager();
        em.getTransaction().begin();
        QueryGenerator generator = new QueryGenerator(AbstractExpCatResource.GATEWAY);
        generator.setParameter(AbstractExpCatResource.GatewayConstants.GATEWAY_ID, gatewayId);
        Query q = generator.deleteQuery(em);
        q.executeUpdate();
        em.getTransaction().commit();
        em.close();
        return true;
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        return false;
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
}

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From source file:org.apache.airavata.registry.core.experiment.catalog.ExpCatResourceUtils.java

/**
 * @param gatewayResource/*www .j  ava2s.  co  m*/
 * @param userResource
 */
public static WorkerResource addGatewayWorker(GatewayResource gatewayResource, UserResource userResource)
        throws RegistryException {
    EntityManager em = null;
    try {
        em = getEntityManager();
        em.getTransaction().begin();
        if (!isGatewayExist(gatewayResource.getGatewayName())) {
            gatewayResource.save();
        }
        if (!isUserExist(userResource.getUserName(), gatewayResource.getGatewayId())) {
            userResource.save();
        }
        Gateway gateway = em.find(Gateway.class, gatewayResource.getGatewayId());
        GatewayWorker gatewayWorker = new GatewayWorker();
        gatewayWorker.setGateway(gateway);
        gatewayWorker.setUserName(userResource.getUserName());
        em.persist(gatewayWorker);
        em.getTransaction().commit();
        em.close();
        return (WorkerResource) Utils.getResource(ResourceType.GATEWAY_WORKER, gatewayWorker);
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RegistryException(e);
    } finally {
        if (em != null && em.isOpen()) {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }
    }
}

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