Examples with ConnectionException com.netflix.astyanax.connectionpool.exceptions.ConnectionException used on opensource projects

Example 6 with ConnectionException

use of com.netflix.astyanax.connectionpool.exceptions.ConnectionException in project titan by thinkaurelius.

the class AstyanaxStoreManager method ensureColumnFamilyExists.

private void ensureColumnFamilyExists(String name, String comparator) throws BackendException {
    Cluster cl = clusterContext.getClient();
    try {
        KeyspaceDefinition ksDef = cl.describeKeyspace(keySpaceName);
        boolean found = false;
        if (null != ksDef) {
            for (ColumnFamilyDefinition cfDef : ksDef.getColumnFamilyList()) {
                found |= cfDef.getName().equals(name);
            }
        }
        if (!found) {
            ColumnFamilyDefinition cfDef = cl.makeColumnFamilyDefinition().setName(name).setKeyspace(keySpaceName).setComparatorType(comparator);
            ImmutableMap.Builder<String, String> compressionOptions = new ImmutableMap.Builder<String, String>();
            if (compressionEnabled) {
                compressionOptions.put("sstable_compression", compressionClass).put("chunk_length_kb", Integer.toString(compressionChunkSizeKB));
            }
            cl.addColumnFamily(cfDef.setCompressionOptions(compressionOptions.build()));
        }
    } catch (ConnectionException e) {
        throw new TemporaryBackendException(e);
    }
}

Example 7 with ConnectionException

use of com.netflix.astyanax.connectionpool.exceptions.ConnectionException in project titan by thinkaurelius.

the class AstyanaxStoreManager method mutateMany.

@Override
public void mutateMany(Map<String, Map<StaticBuffer, KCVMutation>> batch, StoreTransaction txh) throws BackendException {
    MutationBatch m = keyspaceContext.getClient().prepareMutationBatch().withAtomicBatch(atomicBatch).setConsistencyLevel(getTx(txh).getWriteConsistencyLevel().getAstyanax()).withRetryPolicy(retryPolicy.duplicate());
    final MaskedTimestamp commitTime = new MaskedTimestamp(txh);
    for (Map.Entry<String, Map<StaticBuffer, KCVMutation>> batchentry : batch.entrySet()) {
        String storeName = batchentry.getKey();
        Preconditions.checkArgument(openStores.containsKey(storeName), "Store cannot be found: " + storeName);
        ColumnFamily<ByteBuffer, ByteBuffer> columnFamily = openStores.get(storeName).getColumnFamily();
        Map<StaticBuffer, KCVMutation> mutations = batchentry.getValue();
        for (Map.Entry<StaticBuffer, KCVMutation> ent : mutations.entrySet()) {
            // The CLMs for additions and deletions are separated because
            // Astyanax's operation timestamp cannot be set on a per-delete
            // or per-addition basis.
            KCVMutation titanMutation = ent.getValue();
            ByteBuffer key = ent.getKey().asByteBuffer();
            if (titanMutation.hasDeletions()) {
                ColumnListMutation<ByteBuffer> dels = m.withRow(columnFamily, key);
                dels.setTimestamp(commitTime.getDeletionTime(times));
                for (StaticBuffer b : titanMutation.getDeletions()) dels.deleteColumn(b.as(StaticBuffer.BB_FACTORY));
            }
            if (titanMutation.hasAdditions()) {
                ColumnListMutation<ByteBuffer> upds = m.withRow(columnFamily, key);
                upds.setTimestamp(commitTime.getAdditionTime(times));
                for (Entry e : titanMutation.getAdditions()) {
                    Integer ttl = (Integer) e.getMetaData().get(EntryMetaData.TTL);
                    if (null != ttl && ttl > 0) {
                        upds.putColumn(e.getColumnAs(StaticBuffer.BB_FACTORY), e.getValueAs(StaticBuffer.BB_FACTORY), ttl);
                    } else {
                        upds.putColumn(e.getColumnAs(StaticBuffer.BB_FACTORY), e.getValueAs(StaticBuffer.BB_FACTORY));
                    }
                }
            }
        }
    }
    try {
        m.execute();
    } catch (ConnectionException e) {
        throw new TemporaryBackendException(e);
    }
    sleepAfterWrite(txh, commitTime);
}

Example 8 with ConnectionException

use of com.netflix.astyanax.connectionpool.exceptions.ConnectionException in project titan by thinkaurelius.

the class AstyanaxStoreManager method clearStorage.

@Override
public void clearStorage() throws BackendException {
    try {
        Cluster cluster = clusterContext.getClient();
        Keyspace ks = cluster.getKeyspace(keySpaceName);
        // everything up, so first invocation would always fail as Keyspace doesn't yet exist.
        if (ks == null)
            return;
        for (ColumnFamilyDefinition cf : cluster.describeKeyspace(keySpaceName).getColumnFamilyList()) {
            ks.truncateColumnFamily(new ColumnFamily<Object, Object>(cf.getName(), null, null));
        }
    } catch (ConnectionException e) {
        throw new PermanentBackendException(e);
    }
}

Example 9 with ConnectionException

use of com.netflix.astyanax.connectionpool.exceptions.ConnectionException in project titan by thinkaurelius.

the class AstyanaxKeyColumnValueStore method getNamesSlice.

public Map<StaticBuffer, EntryList> getNamesSlice(List<StaticBuffer> keys, SliceQuery query, StoreTransaction txh) throws BackendException {
    /*
         * RowQuery<K,C> should be parameterized as
         * RowQuery<ByteBuffer,ByteBuffer>. However, this causes the following
         * compilation error when attempting to call withColumnRange on a
         * RowQuery<ByteBuffer,ByteBuffer> instance:
         *
         * java.lang.Error: Unresolved compilation problem: The method
         * withColumnRange(ByteBuffer, ByteBuffer, boolean, int) is ambiguous
         * for the type RowQuery<ByteBuffer,ByteBuffer>
         *
         * The compiler substitutes ByteBuffer=C for both startColumn and
         * endColumn, compares it to its identical twin with that type
         * hard-coded, and dies.
         *
         */
    RowSliceQuery rq = keyspace.prepareQuery(columnFamily).setConsistencyLevel(getTx(txh).getReadConsistencyLevel().getAstyanax()).withRetryPolicy(retryPolicy.duplicate()).getKeySlice(CassandraHelper.convert(keys));
    // Thank you, Astyanax, for making builder pattern useful :(
    rq.withColumnRange(query.getSliceStart().asByteBuffer(), query.getSliceEnd().asByteBuffer(), false, //Add one for potentially removed last column
    query.getLimit() + (query.hasLimit() ? 1 : 0));
    OperationResult<Rows<ByteBuffer, ByteBuffer>> r;
    try {
        r = (OperationResult<Rows<ByteBuffer, ByteBuffer>>) rq.execute();
    } catch (ConnectionException e) {
        throw new TemporaryBackendException(e);
    }
    Rows<ByteBuffer, ByteBuffer> rows = r.getResult();
    Map<StaticBuffer, EntryList> result = new HashMap<StaticBuffer, EntryList>(rows.size());
    for (Row<ByteBuffer, ByteBuffer> row : rows) {
        assert !result.containsKey(row.getKey());
        result.put(StaticArrayBuffer.of(row.getKey()), CassandraHelper.makeEntryList(row.getColumns(), entryGetter, query.getSliceEnd(), query.getLimit()));
    }
    return result;
}