Examples with PersistenceManager javax.jdo.PersistenceManager used on opensource projects

Example 1 with PersistenceManager

use of javax.jdo.PersistenceManager in project OpenRefine by OpenRefine.

the class AppEngineRefineBrokerImpl method expireLocks.

protected void expireLocks(HttpServletResponse response) throws Exception {
    PersistenceManager pm = pmfInstance.getPersistenceManager();
    try {
        Extent<Lock> extent = pm.getExtent(Lock.class, false);
        try {
            for (Lock lock : extent) {
                if (lock.timestamp + LOCK_DURATION < System.currentTimeMillis()) {
                    Transaction tx = pm.currentTransaction();
                    try {
                        tx.begin();
                        pm.deletePersistent(lock);
                        tx.commit();
                    } finally {
                        if (tx.isActive()) {
                            tx.rollback();
                        }
                    }
                }
            }
        } finally {
            extent.closeAll();
        }
        respond(response, OK);
    } finally {
        pm.close();
    }
}

Example 2 with PersistenceManager

use of javax.jdo.PersistenceManager in project OpenRefine by OpenRefine.

the class AppEngineRefineBrokerImpl method getHistory.

protected void getHistory(HttpServletResponse response, String pid, int tindex) throws Exception {
    PersistenceManager pm = pmfInstance.getPersistenceManager();
    try {
        Project project = getProject(pm, pid);
        Writer w = response.getWriter();
        JSONWriter writer = new JSONWriter(w);
        writer.object();
        writer.key("transformations");
        writer.array();
        int size = project.transformations.size();
        for (int i = tindex; i < size; i++) {
            writer.value(project.transformations.get(i).toString());
        }
        writer.endArray();
        writer.endObject();
        w.flush();
        w.close();
    } finally {
        pm.close();
    }
}

Example 3 with PersistenceManager

use of javax.jdo.PersistenceManager in project OpenRefine by OpenRefine.

the class AppEngineRefineBrokerImpl method obtainLock.

protected void obtainLock(HttpServletResponse response, String pid, String uid, int locktype, String lockvalue) throws Exception {
    PersistenceManager pm = pmfInstance.getPersistenceManager();
    try {
        Lock lock = getLock(pm, pid);
        if (lock == null) {
            Transaction tx = pm.currentTransaction();
            try {
                tx.begin();
                lock = new Lock(Long.toHexString(tx.hashCode()), pid, uid);
                pm.makePersistent(lock);
                tx.commit();
            } finally {
                if (tx.isActive()) {
                    tx.rollback();
                }
            }
        }
        respond(response, lockToJSON(lock));
    } finally {
        pm.close();
    }
}

Example 4 with PersistenceManager

use of javax.jdo.PersistenceManager in project OpenRefine by OpenRefine.

the class AppEngineRefineBrokerImpl method startProject.

// ----------------------------------------------------------------------------------------------------
protected void startProject(HttpServletResponse response, String pid, String uid, String lid, String data) throws Exception {
    PersistenceManager pm = pmfInstance.getPersistenceManager();
    try {
        checkLock(pm, pid, uid, lid);
        Project project = getProject(pm, pid);
        if (project != null) {
            throw new RuntimeException("Project '" + pid + "' already exists");
        }
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            project = new Project(pid, data);
            pm.makePersistent(project);
            tx.commit();
        } finally {
            if (tx.isActive()) {
                tx.rollback();
            }
        }
        respond(response, OK);
    } finally {
        pm.close();
    }
}

Example 5 with PersistenceManager

use of javax.jdo.PersistenceManager in project estatio by estatio.

the class IncomingInvoiceItemRepository method findDistinctReportDates.

@Programmatic
public List<LocalDate> findDistinctReportDates() {
    final PersistenceManager pm = isisJdoSupport.getJdoPersistenceManager();
    final Query query = pm.newQuery(IncomingInvoiceItem.class);
    query.setResultClass(LocalDate.class);
    query.setResult("distinct reportedDate");
    query.setOrdering("reportedDate descending");
    return executeListAndClose(query);
}