Examples with DatabaseEntry com.sleepycat.je.DatabaseEntry used on opensource projects

Example 16 with DatabaseEntry

use of com.sleepycat.je.DatabaseEntry in project GeoGig by boundlessgeo.

the class JEObjectDatabase method deleteAll.

@Override
public long deleteAll(Iterator<ObjectId> ids, final BulkOpListener listener) {
    checkWritable();
    long count = 0;
    UnmodifiableIterator<List<ObjectId>> partition = partition(ids, getBulkPartitionSize());
    final DatabaseEntry data = new DatabaseEntry();
    // do not retrieve data
    data.setPartial(0, 0, true);
    while (partition.hasNext()) {
        List<ObjectId> nextIds = Lists.newArrayList(partition.next());
        Collections.sort(nextIds);
        final Transaction transaction = newTransaction();
        CursorConfig cconfig = new CursorConfig();
        final Cursor cursor = objectDb.openCursor(transaction, cconfig);
        try {
            DatabaseEntry key = new DatabaseEntry(new byte[ObjectId.NUM_BYTES]);
            for (ObjectId id : nextIds) {
                // copy id to key object without allocating new byte[]
                id.getRawValue(key.getData());
                OperationStatus status = cursor.getSearchKey(key, data, LockMode.DEFAULT);
                if (OperationStatus.SUCCESS.equals(status)) {
                    OperationStatus delete = cursor.delete();
                    if (OperationStatus.SUCCESS.equals(delete)) {
                        listener.deleted(id);
                        count++;
                    } else {
                        listener.notFound(id);
                    }
                } else {
                    listener.notFound(id);
                }
            }
            cursor.close();
        } catch (Exception e) {
            cursor.close();
            abort(transaction);
            Throwables.propagate(e);
        }
        commit(transaction);
    }
    return count;
}

Example 17 with DatabaseEntry

use of com.sleepycat.je.DatabaseEntry in project leopard by tanhaichao.

the class BdbDatabaseImpl method putNoDupData.

@Override
public boolean putNoDupData(String key, String value) throws DatabaseException {
    OperationStatus status = database.putNoDupData(transaction, new DatabaseEntry(key.getBytes()), new DatabaseEntry(value.getBytes()));
    String result = status.toString();
    if (result.endsWith(".KEYEXIST")) {
        throw new DuplicateEntryException("key[" + key + "]已存在.");
    }
    // System.err.println(status);
    return true;
}

Example 18 with DatabaseEntry

use of com.sleepycat.je.DatabaseEntry in project leopard by tanhaichao.

the class BdbDatabaseImpl method getString.

@Override
public String getString(String key) throws DatabaseException {
    DatabaseEntry data = new DatabaseEntry();
    database.get(transaction, new DatabaseEntry(key.getBytes()), data, LockMode.DEFAULT);
    byte[] bytes = data.getData();
    if (bytes == null) {
        return null;
    }
    return new String(bytes);
}

Example 19 with DatabaseEntry

use of com.sleepycat.je.DatabaseEntry in project voldemort by voldemort.

the class BdbStorageEngine method put.

@Override
public void put(ByteArray key, Versioned<byte[]> value, byte[] transforms) throws PersistenceFailureException {
    long startTimeNs = -1;
    if (logger.isTraceEnabled())
        startTimeNs = System.nanoTime();
    StoreUtils.assertValidKey(key);
    DatabaseEntry keyEntry = new DatabaseEntry(key.get());
    DatabaseEntry valueEntry = new DatabaseEntry();
    boolean succeeded = false;
    Transaction transaction = null;
    List<Versioned<byte[]>> vals = null;
    try {
        transaction = environment.beginTransaction(null, null);
        // do a get for the existing values
        OperationStatus status = getBdbDatabase().get(transaction, keyEntry, valueEntry, LockMode.RMW);
        if (OperationStatus.SUCCESS == status) {
            // update
            vals = StoreBinaryFormat.fromByteArray(valueEntry.getData());
            // compare vector clocks and throw out old ones, for updates
            Iterator<Versioned<byte[]>> iter = vals.iterator();
            while (iter.hasNext()) {
                Versioned<byte[]> curr = iter.next();
                Occurred occurred = value.getVersion().compare(curr.getVersion());
                if (occurred == Occurred.BEFORE)
                    throw new ObsoleteVersionException("Key " + new String(hexCodec.encode(key.get())) + " " + value.getVersion().toString() + " is obsolete, it is no greater than the current version of " + curr.getVersion().toString() + ".");
                else if (occurred == Occurred.AFTER)
                    iter.remove();
            }
        } else {
            // insert
            vals = new ArrayList<Versioned<byte[]>>(1);
        }
        // update the new value
        vals.add(value);
        valueEntry.setData(StoreBinaryFormat.toByteArray(vals));
        status = getBdbDatabase().put(transaction, keyEntry, valueEntry);
        if (status != OperationStatus.SUCCESS)
            throw new PersistenceFailureException("Put operation failed with status: " + status);
        succeeded = true;
    } catch (DatabaseException e) {
        this.bdbEnvironmentStats.reportException(e);
        logger.error("Error in put for store " + this.getName(), e);
        throw new PersistenceFailureException(e);
    } finally {
        if (succeeded)
            attemptCommit(transaction);
        else
            attemptAbort(transaction);
        if (logger.isTraceEnabled()) {
            logger.trace("Completed PUT (" + getName() + ") to key " + key + " (keyRef: " + System.identityHashCode(key) + " value " + value + " in " + (System.nanoTime() - startTimeNs) + " ns at " + System.currentTimeMillis());
        }
    }
}

Example 20 with DatabaseEntry

use of com.sleepycat.je.DatabaseEntry in project voldemort by voldemort.

the class BdbStorageEngine method delete.

@Override
public boolean delete(ByteArray key, Version version) throws PersistenceFailureException {
    StoreUtils.assertValidKey(key);
    long startTimeNs = -1;
    if (logger.isTraceEnabled())
        startTimeNs = System.nanoTime();
    Transaction transaction = null;
    try {
        transaction = this.environment.beginTransaction(null, null);
        DatabaseEntry keyEntry = new DatabaseEntry(key.get());
        if (version == null) {
            // unversioned delete. Just blow away the whole thing
            OperationStatus status = getBdbDatabase().delete(transaction, keyEntry);
            if (OperationStatus.SUCCESS == status)
                return true;
            else
                return false;
        } else {
            // versioned deletes; need to determine what to delete
            DatabaseEntry valueEntry = new DatabaseEntry();
            // do a get for the existing values
            OperationStatus status = getBdbDatabase().get(transaction, keyEntry, valueEntry, LockMode.RMW);
            // key does not exist to begin with.
            if (OperationStatus.NOTFOUND == status)
                return false;
            List<Versioned<byte[]>> vals = StoreBinaryFormat.fromByteArray(valueEntry.getData());
            Iterator<Versioned<byte[]>> iter = vals.iterator();
            int numVersions = vals.size();
            int numDeletedVersions = 0;
            // supplied version
            while (iter.hasNext()) {
                Versioned<byte[]> curr = iter.next();
                Version currentVersion = curr.getVersion();
                if (currentVersion.compare(version) == Occurred.BEFORE) {
                    iter.remove();
                    numDeletedVersions++;
                }
            }
            if (numDeletedVersions < numVersions) {
                // we still have some valid versions
                valueEntry.setData(StoreBinaryFormat.toByteArray(vals));
                getBdbDatabase().put(transaction, keyEntry, valueEntry);
            } else {
                // we have deleted all the versions; so get rid of the entry
                // in the database
                getBdbDatabase().delete(transaction, keyEntry);
            }
            return numDeletedVersions > 0;
        }
    } catch (DatabaseException e) {
        this.bdbEnvironmentStats.reportException(e);
        logger.error(e);
        throw new PersistenceFailureException(e);
    } finally {
        attemptCommit(transaction);
        if (logger.isTraceEnabled()) {
            logger.trace("Completed DELETE (" + getName() + ") of key " + ByteUtils.toHexString(key.get()) + " (keyRef: " + System.identityHashCode(key) + ") in " + (System.nanoTime() - startTimeNs) + " ns at " + System.currentTimeMillis());
        }
    }
}