Java Code Examples for com.netflix.astyanax.ColumnListMutation#putColumn()

public void createInstanceEntry(RaigadInstance instance) throws Exception {
    logger.info("Creating new instance entry");

    String key = getRowKey(instance);
    // If the key exists throw exception
    if (getInstance(instance.getApp(), instance.getDC(), instance.getId()) != null) {
        logger.info(String.format("Key already exists: %s", key));
        return;
    }

    // Grab the lock
    getLock(instance);

    MutationBatch mutationBatch = bootKeyspace.prepareMutationBatch();
    ColumnListMutation<String> columnListMutation = mutationBatch.withRow(CF_INSTANCES, key);
    columnListMutation.putColumn(CN_CLUSTER, instance.getApp(), null);
    columnListMutation.putColumn(CN_AZ, instance.getAvailabilityZone(), null);
    columnListMutation.putColumn(CN_INSTANCEID, instance.getInstanceId(), null);
    columnListMutation.putColumn(CN_HOSTNAME, instance.getHostName(), null);
    columnListMutation.putColumn(CN_IP, instance.getHostIP(), null);
    columnListMutation.putColumn(CN_LOCATION, instance.getDC(), null);
    columnListMutation.putColumn(CN_ASGNAME, instance.getAsg(), null);
    columnListMutation.putColumn(CN_UPDATETIME, TimeUUIDUtils.getUniqueTimeUUIDinMicros(), null);

    mutationBatch.execute();
}
 

public void updateRow(String key, RowData rowData) throws PaasException {
    LOG.info("Update row: " + rowData.toString());
    invariant();
    
    MutationBatch mb = keyspace.prepareMutationBatch();
    if (rowData.hasSchemalessRows()) {
        ColumnListMutation<ByteBuffer> mbRow = mb.withRow(this.columnFamily, serializers.keyAsByteBuffer(key));
        for (Entry<String, Map<String, String>> row : rowData.getSrows().getRows().entrySet()) {
            for (Entry<String, String> column : row.getValue().entrySet()) {
                mbRow.putColumn(serializers.columnAsByteBuffer(column.getKey()),  
                                serializers.valueAsByteBuffer(column.getKey(), column.getValue()));
            }
        }
    }
    
    try {
        mb.execute();
    } catch (ConnectionException e) {
        throw new PaasException(
                String.format("Failed to update row '%s' in column family '%s.%s'" , 
                              key, this.keyspace.getKeyspaceName(), this.columnFamily.getName()),
                e);
    }
}
 

@Override
public void updateColumn(String key, String column, String value) throws NotFoundException, PaasException {
    LOG.info("Update row");
    invariant();
    
    MutationBatch mb = keyspace.prepareMutationBatch();
    ColumnListMutation<ByteBuffer> mbRow = mb.withRow(this.columnFamily, serializers.keyAsByteBuffer(key));
    mbRow.putColumn(serializers.columnAsByteBuffer(column),  
                    serializers.valueAsByteBuffer(column, value));
    
    try {
        mb.execute();
    } catch (ConnectionException e) {
        throw new PaasException(
                String.format("Failed to update row '%s' in column family '%s.%s'" , 
                              key, this.keyspace.getKeyspaceName(), this.columnFamily.getName()),
                e);
    }
}
 

public void writeMetadata(Table<Locator, String, String> metaTable) throws ConnectionException {
    ColumnFamily cf = CassandraModel.CF_METRICS_METADATA;
    Timer.Context ctx = Instrumentation.getBatchWriteTimerContext(CassandraModel.CF_METRICS_METADATA_NAME);
    MutationBatch batch = keyspace.prepareMutationBatch();

    try {
        for (Locator locator : metaTable.rowKeySet()) {
            Map<String, String> metaRow = metaTable.row(locator);
            ColumnListMutation<String> mutation = batch.withRow(cf, locator);

            for (Map.Entry<String, String> meta : metaRow.entrySet()) {
                mutation.putColumn(meta.getKey(), meta.getValue(), StringMetadataSerializer.get(), null);
            }
        }
        try {
            batch.execute();
        } catch (ConnectionException e) {
            Instrumentation.markWriteError(e);
            log.error("Connection exception persisting metadata", e);
            throw e;
        }
    } finally {
        ctx.stop();
    }
}
 

@Timed (name = "bv.emodb.sorAstyanaxDataWriterDAO.storeCompactedDeltas", absolute = true)
@Override
public void storeCompactedDeltas(Table tbl, String key, List<History> histories, WriteConsistency consistency) {
    checkNotNull(tbl, "table");
    checkNotNull(key, "key");
    checkNotNull(histories, "histories");
    checkNotNull(consistency, "consistency");

    AstyanaxTable table = (AstyanaxTable) tbl;
    for (AstyanaxStorage storage : table.getWriteStorage()) {
        DeltaPlacement placement = (DeltaPlacement) storage.getPlacement();
        CassandraKeyspace keyspace = placement.getKeyspace();

        ByteBuffer rowKey = storage.getRowKey(key);

        MutationBatch mutation = keyspace.prepareMutationBatch(SorConsistencies.toAstyanax(consistency));
        ColumnListMutation<UUID> rowMutation = mutation.withRow(placement.getDeltaHistoryColumnFamily(), rowKey);

        for (History history : histories) {
            rowMutation.putColumn(history.getChangeId(),
                    _changeEncoder.encodeHistory(history),
                    Ttls.toSeconds(_historyStore.getHistoryTtl(), 1, null));
        }
        execute(mutation, "store %d compacted deltas for placement %s, table %s, key %s",
                histories.size(), placement.getName(), table.getName(), key);
    }
}
 

@Override
public void commit(List<History> historyList, Object rowKey) {
    if (historyList != null && !historyList.isEmpty()) {
        ColumnListMutation<UUID> historyMutation = _mutation.withRow(_columnFamily, (ByteBuffer)rowKey);
        for (History history : historyList) {
            historyMutation.putColumn(history.getChangeId(),
                    _changeEncoder.encodeHistory(history),
                    Ttls.toSeconds(_historyStore.getHistoryTtl(), 1, null));
        }
    }
}
 

private void getLock(RaigadInstance instance) throws Exception {
    String choosingkey = getChoosingKey(instance);
    MutationBatch m = bootKeyspace.prepareMutationBatch();
    ColumnListMutation<String> clm = m.withRow(CF_LOCKS, choosingkey);

    // Expire in 6 sec
    clm.putColumn(instance.getInstanceId(), instance.getInstanceId(), new Integer(6));
    m.execute();
    int count = bootKeyspace.prepareQuery(CF_LOCKS).getKey(choosingkey).getCount().execute().getResult();
    if (count > 1) {
        // Need to delete my entry
        m.withRow(CF_LOCKS, choosingkey).deleteColumn(instance.getInstanceId());
        m.execute();
        throw new Exception(String.format("More than 1 contender for lock %s %d", choosingkey, count));
    }

    String lockKey = getLockingKey(instance);
    OperationResult<ColumnList<String>> result = bootKeyspace.prepareQuery(CF_LOCKS).getKey(lockKey).execute();
    if (result.getResult().size() > 0 && !result.getResult().getColumnByIndex(0).getName().equals(instance.getInstanceId())) {
        throw new Exception(String.format("Lock already taken %s", lockKey));
    }

    clm = m.withRow(CF_LOCKS, lockKey);
    clm.putColumn(instance.getInstanceId(), instance.getInstanceId(), new Integer(600));
    m.execute();
    Thread.sleep(100);
    result = bootKeyspace.prepareQuery(CF_LOCKS).getKey(lockKey).execute();
    if (result.getResult().size() == 1 && result.getResult().getColumnByIndex(0).getName().equals(instance.getInstanceId())) {
        logger.info("Got lock " + lockKey);
        return;
    }
    else {
        throw new Exception(String.format("Cannot insert lock %s", lockKey));
    }
}
 

@Override
public void putShardState(int shard, Map<Granularity, Map<Integer, UpdateStamp>> slotTimes) throws IOException {
    AstyanaxIO astyanaxIO = AstyanaxIO.singleton();
    Timer.Context ctx = Instrumentation.getWriteTimerContext(CassandraModel.CF_METRICS_STATE_NAME);
    try {
        MutationBatch mutationBatch = astyanaxIO.getKeyspace().prepareMutationBatch();
        ColumnListMutation<SlotState> mutation = mutationBatch.withRow(CassandraModel.CF_METRICS_STATE, (long)shard);
        for (Map.Entry<Granularity, Map<Integer, UpdateStamp>> granEntry : slotTimes.entrySet()) {
            Granularity g = granEntry.getKey();
            for (Map.Entry<Integer, UpdateStamp> entry : granEntry.getValue().entrySet()) {
                // granularity,slot,state
                SlotState slotState = new SlotState(g, entry.getKey(), entry.getValue().getState());
                mutation.putColumn(slotState, entry.getValue().getTimestamp());
                /*
                  Note: this method used to set the timestamp of the Cassandra column to entry.getValue().getTimestamp() * 1000, i.e. the collection time.
                  That implementation was changed because it could cause delayed metrics not to rollup.
                  Consider you are getting out of order metrics M1 and M2, with collection times T1 and T2 with T2>T1, belonging to same slot
                  Assume M2 arrives first. The slot gets marked active and rolled up and the state is set as Rolled. Now, assume M1 arrives. We update the slot state to active,
                  set the slot timestamp to T1, and while persisting we set it, we set the column timestamp to be T1*1000, but because the T1 < T2, Cassandra wasn't updating it.
                 */
            }
        }
        if (!mutationBatch.isEmpty())
            try {
                mutationBatch.execute();
            } catch (ConnectionException e) {
                Instrumentation.markWriteError(e);
                LOG.error("Error persisting shard state", e);
                throw new IOException(e);
            }
    } finally {
        ctx.stop();
    }
}
 

@Override
protected Void run() throws Exception {
    MutationBatch m = keyspace.prepareMutationBatch().setConsistencyLevel(ConsistencyLevel.CL_QUORUM);

    // Setting columns in a standard column
    ColumnListMutation<String> cm = m.withRow(columnFamily, rowKey);
    for (String key : attributes.keySet()) {
        Object o = attributes.get(key);
        if (o != null) {
            // unfortunately the 'putColumn' method does not nicely figure
            // out what type the Object is so we need to do it manually
            if (o instanceof String) {
                cm.putColumn(key, (String) o, ttlSeconds);
            } else if (o instanceof Boolean) {
                cm.putColumn(key, (Boolean) o, ttlSeconds);
            } else if (o instanceof Integer) {
                cm.putColumn(key, (Integer) o, ttlSeconds);
            } else if (o instanceof Long) {
                cm.putColumn(key, (Long) o, ttlSeconds);
            } else if (o instanceof Double) {
                cm.putColumn(key, (Double) o, ttlSeconds);
            } else if (o instanceof Date) {
                cm.putColumn(key, (Date) o, ttlSeconds);
            } else if (o instanceof byte[]) {
                cm.putColumn(key, (byte[]) o, ttlSeconds);
            } else if (o instanceof ByteBuffer) {
                cm.putColumn(key, (ByteBuffer) o, ttlSeconds);
            } else {
                throw new IllegalArgumentException("Unsupported object instance type: "
                        + o.getClass().getSimpleName());
            }
        }
    }
    m.execute();
    return null;
}
 

private void putBlockedDeltaColumn(ColumnListMutation mutation, UUID changeId, ByteBuffer encodedDelta) {
    List<ByteBuffer> blocks = _daoUtils.getDeltaBlocks(encodedDelta);
    for (int i = 0; i < blocks.size(); i++) {
        mutation.putColumn(new DeltaKey(changeId, i), blocks.get(i));
    }
}
 

public void insertMetrics(Collection<IMetric> metrics, ColumnFamily cf, boolean isRecordingDelayedMetrics, Clock clock) throws ConnectionException {
    Timer.Context ctx = Instrumentation.getWriteTimerContext(cf.getName());
    Multimap<Locator, IMetric> map = asMultimap(metrics);
    MutationBatch batch = keyspace.prepareMutationBatch();
    try {
        for (Locator locator : map.keySet()) {
            ColumnListMutation<Long> mutation = batch.withRow(cf, locator);
            
            for (IMetric metric : map.get(locator)) {

                mutation.putColumn(
                            metric.getCollectionTime(),
                            metric.getMetricValue(),
                            (AbstractSerializer) (Serializers.serializerFor(metric.getMetricValue().getClass())),
                            metric.getTtlInSeconds());
                if (cf.getName().equals(CassandraModel.CF_METRICS_PREAGGREGATED_FULL_NAME)) {
                        Instrumentation.markFullResPreaggregatedMetricWritten();
                }

                if (isRecordingDelayedMetrics) {
                    //retaining the same conditional logic that was used to perform insertLocator(locator, batch).
                    insertLocatorIfDelayed(metric, batch, clock);
                }
            }
            
            if (!LocatorCache.getInstance().isLocatorCurrentInBatchLayer(locator)) {
                insertLocator(locator, batch);
                LocatorCache.getInstance().setLocatorCurrentInBatchLayer(locator);
            }
        }
        try {
            batch.execute();
        } catch (ConnectionException e) {
            Instrumentation.markWriteError(e);
            log.error("Connection exception persisting data", e);
            throw e;
        }
    } finally {
        ctx.stop();
    }
}