Examples with Mutation org.apache.cassandra.thrift.Mutation used on opensource projects

Example 1 with Mutation

use of org.apache.cassandra.thrift.Mutation in project logprocessing by cloudian.

the class CassandraClient method insert.

/** Inserts columns into a column family in a given row. */
public void insert(byte[] key, String columnFamily, Column[] columns, ConsistencyLevel consistencyLevel) throws IOException {
    List<Mutation> mutationList = new ArrayList<Mutation>();
    for (int i = 0; i < columns.length; i++) {
        Mutation mutation = new Mutation();
        ColumnOrSuperColumn cosc = new ColumnOrSuperColumn();
        cosc.column = columns[i];
        mutation.setColumn_or_supercolumn(cosc);
        mutationList.add(mutation);
    }
    Map<String, List<Mutation>> innerMutationMap = new HashMap<String, List<Mutation>>();
    innerMutationMap.put(columnFamily, mutationList);
    //Map<byte[], Map<String, List<Mutation>>> mutationMap = new HashMap<byte[], Map<String, List<Mutation>>>();
    //balaji
    Map<ByteBuffer, Map<String, List<Mutation>>> mutationMap = new HashMap<ByteBuffer, Map<String, List<Mutation>>>();
    mutationMap.put(ByteBuffer.wrap(key), innerMutationMap);
    batchMutate(mutationMap, consistencyLevel);
}

Example 2 with Mutation

use of org.apache.cassandra.thrift.Mutation in project brisk by riptano.

the class HistoricalPriceInserter method run.

public void run(Client client) throws IOException {
    //Create a stock price per day
    Map<ByteBuffer, Map<String, List<Mutation>>> record = new HashMap<ByteBuffer, Map<String, List<Mutation>>>(tickers.length);
    LocalDate histDate = today.minusDays(index);
    ByteBuffer histDateBuf = ByteBufferUtil.bytes(histDate.toString("yyyy-MM-dd"));
    for (String stock : tickers) {
        record.put(ByteBufferUtil.bytes(stock), genDaysPrices(histDateBuf));
    }
    long start = System.currentTimeMillis();
    boolean success = false;
    String exceptionMessage = null;
    for (int t = 0; t < session.getRetryTimes(); t++) {
        if (success)
            break;
        try {
            client.batch_mutate(record, session.getConsistencyLevel());
            success = true;
        } catch (Exception e) {
            exceptionMessage = getExceptionMessage(e);
            success = false;
        }
    }
    if (!success) {
        error(String.format("Operation [%d] retried %d times - error inserting key %s %s%n", index, session.getRetryTimes(), histDate, (exceptionMessage == null) ? "" : "(" + exceptionMessage + ")"));
    }
    session.operations.getAndIncrement();
    session.keys.addAndGet(tickers.length);
    session.latency.getAndAdd(System.currentTimeMillis() - start);
}

Example 3 with Mutation

use of org.apache.cassandra.thrift.Mutation in project brisk by riptano.

the class CassandraStorage method putNext.

public void putNext(Tuple t) throws ExecException, IOException {
    ByteBuffer key = objToBB(t.get(0));
    DefaultDataBag pairs = (DefaultDataBag) t.get(1);
    ArrayList<Mutation> mutationList = new ArrayList<Mutation>();
    CfDef cfDef = getCfDef();
    List<AbstractType> marshallers = getDefaultMarshallers(cfDef);
    Map<ByteBuffer, AbstractType> validators = getValidatorMap(cfDef);
    try {
        for (Tuple pair : pairs) {
            Mutation mutation = new Mutation();
            if (// supercolumn
            DataType.findType(pair.get(1)) == DataType.BAG) {
                org.apache.cassandra.thrift.SuperColumn sc = new org.apache.cassandra.thrift.SuperColumn();
                sc.name = objToBB(pair.get(0));
                ArrayList<org.apache.cassandra.thrift.Column> columns = new ArrayList<org.apache.cassandra.thrift.Column>();
                for (Tuple subcol : (DefaultDataBag) pair.get(1)) {
                    org.apache.cassandra.thrift.Column column = new org.apache.cassandra.thrift.Column();
                    column.name = objToBB(subcol.get(0));
                    column.value = objToBB(subcol.get(1));
                    column.setTimestamp(System.currentTimeMillis() * 1000);
                    columns.add(column);
                }
                if (// a deletion
                columns.isEmpty()) {
                    mutation.deletion = new Deletion();
                    mutation.deletion.super_column = objToBB(pair.get(0));
                    mutation.deletion.setTimestamp(System.currentTimeMillis() * 1000);
                } else {
                    sc.columns = columns;
                    mutation.column_or_supercolumn = new ColumnOrSuperColumn();
                    mutation.column_or_supercolumn.super_column = sc;
                }
            } else // assume column since it couldn't be anything else
            {
                if (pair.get(1) == null) {
                    mutation.deletion = new Deletion();
                    mutation.deletion.predicate = new org.apache.cassandra.thrift.SlicePredicate();
                    mutation.deletion.predicate.column_names = Arrays.asList(objToBB(pair.get(0)));
                    mutation.deletion.setTimestamp(System.currentTimeMillis() * 1000);
                } else {
                    org.apache.cassandra.thrift.Column column = new org.apache.cassandra.thrift.Column();
                    column.name = marshallers.get(0).decompose((pair.get(0)));
                    if (validators.get(column.name) == null)
                        // Have to special case BytesType to convert DataByteArray into ByteBuffer
                        if (marshallers.get(1) instanceof BytesType)
                            column.value = objToBB(pair.get(1));
                        else
                            column.value = marshallers.get(1).decompose(pair.get(1));
                    else
                        column.value = validators.get(column.name).decompose(pair.get(1));
                    column.setTimestamp(System.currentTimeMillis() * 1000);
                    mutation.column_or_supercolumn = new ColumnOrSuperColumn();
                    mutation.column_or_supercolumn.column = column;
                }
            }
            mutationList.add(mutation);
        }
    } catch (ClassCastException e) {
        throw new IOException(e + " Output must be (key, {(column,value)...}) for ColumnFamily or (key, {supercolumn:{(column,value)...}...}) for SuperColumnFamily");
    }
    try {
        writer.write(key, mutationList);
    } catch (InterruptedException e) {
        throw new IOException(e);
    }
}

Example 4 with Mutation

use of org.apache.cassandra.thrift.Mutation in project scale7-pelops by s7.

the class Mutator method writeColumnInternal.

private void writeColumnInternal(String colFamily, Bytes rowKey, Column column) {
    safeGetRowKey(rowKey);
    validateColumn(column);
    ColumnOrSuperColumn cosc = new ColumnOrSuperColumn();
    cosc.setColumn(column);
    Mutation mutation = new Mutation();
    mutation.setColumn_or_supercolumn(cosc);
    getMutationList(colFamily, rowKey).add(mutation);
}

Example 5 with Mutation

use of org.apache.cassandra.thrift.Mutation in project scale7-pelops by s7.

the class Mutator method writeSubColumnsInternal.

/**
     * Writes multiple sub-column values to a super column.
     *
     * @param colFamily        The column family
     * @param rowKey           The key of the row to modify
     * @param colName          The name of the super column
     * @param subColumns       A list of the sub-columns to write
     */
private void writeSubColumnsInternal(String colFamily, Bytes rowKey, Bytes colName, List<Column> subColumns) {
    safeGetRowKey(rowKey);
    validateColumnName(colName);
    validateColumns(subColumns);
    SuperColumn scol = new SuperColumn(nullSafeGet(colName), subColumns);
    ColumnOrSuperColumn cosc = new ColumnOrSuperColumn();
    cosc.setSuper_column(scol);
    Mutation mutation = new Mutation();
    mutation.setColumn_or_supercolumn(cosc);
    getMutationList(colFamily, rowKey).add(mutation);
}