Java Code Examples for org.apache.cassandra.config.CFMetaData#isCounter()

public void validate(ClientState state) throws RequestValidationException
{
    CFMetaData cfm = ThriftValidation.validateColumnFamily(keyspace(), columnFamily());
    if (cfm.isCounter())
        throw new InvalidRequestException("Secondary indexes are not supported on counter tables");

    IndexTarget target = rawTarget.prepare(cfm);
    ColumnDefinition cd = cfm.getColumnDefinition(target.column);

    if (cd == null)
        throw new InvalidRequestException("No column definition found for column " + target.column);

    boolean isMap = cd.type instanceof MapType;
    boolean isFrozenCollection = cd.type.isCollection() && !cd.type.isMultiCell();
    if (target.isCollectionKeys)
    {
        if (!isMap)
            throw new InvalidRequestException("Cannot create index on keys of column " + target + " with non-map type");
        if (!cd.type.isMultiCell())
            throw new InvalidRequestException("Cannot create index on keys of frozen<map> column " + target);
    }
    else if (target.isFullCollection)
    {
        if (!isFrozenCollection)
            throw new InvalidRequestException("full() indexes can only be created on frozen collections");
    }
    else if (isFrozenCollection)
    {
        throw new InvalidRequestException("Frozen collections currently only support full-collection indexes. " +
                                          "For example, 'CREATE INDEX ON <table>(full(<columnName>))'.");
    }

    if (cd.getIndexType() != null)
    {
        boolean previousIsKeys = cd.hasIndexOption(SecondaryIndex.INDEX_KEYS_OPTION_NAME);
        if (isMap && target.isCollectionKeys != previousIsKeys)
        {
            String msg = "Cannot create index on %s %s, an index on %s %s already exists and indexing "
                    + "a map on both keys and values at the same time is not currently supported";
            throw new InvalidRequestException(String.format(msg,
                                                            target.column, target.isCollectionKeys ? "keys" : "values",
                                                            target.column, previousIsKeys ? "keys" : "values"));
        }

        if (ifNotExists)
            return;
        else
            throw new InvalidRequestException("Index already exists");
    }

    properties.validate(cfm);

    // TODO: we could lift that limitation
    if ((cfm.comparator.isDense() || !cfm.comparator.isCompound()) && cd.kind != ColumnDefinition.Kind.REGULAR)
        throw new InvalidRequestException("Secondary indexes are not supported on PRIMARY KEY columns in COMPACT STORAGE tables");

    // It would be possible to support 2ndary index on static columns (but not without modifications of at least ExtendedFilter and
    // CompositesIndex) and maybe we should, but that means a query like:
    //     SELECT * FROM foo WHERE static_column = 'bar'
    // would pull the full partition every time the static column of partition is 'bar', which sounds like offering a
    // fair potential for foot-shooting, so I prefer leaving that to a follow up ticket once we have identified cases where
    // such indexing is actually useful.
    if (cd.isStatic())
        throw new InvalidRequestException("Secondary indexes are not allowed on static columns");

    if (cd.kind == ColumnDefinition.Kind.PARTITION_KEY && cd.isOnAllComponents())
        throw new InvalidRequestException(String.format("Cannot create secondary index on partition key column %s", target.column));
}
 

private List<IMutation> createMutationList(ConsistencyLevel consistency_level,
                                           Map<ByteBuffer,Map<String,List<Mutation>>> mutation_map,
                                           boolean allowCounterMutations)
throws RequestValidationException
{
    List<IMutation> mutations = new ArrayList<>();
    ThriftClientState cState = state();
    String keyspace = cState.getKeyspace();

    for (Map.Entry<ByteBuffer, Map<String, List<Mutation>>> mutationEntry: mutation_map.entrySet())
    {
        ByteBuffer key = mutationEntry.getKey();

        // We need to separate mutation for standard cf and counter cf (that will be encapsulated in a
        // CounterMutation) because it doesn't follow the same code path
        org.apache.cassandra.db.Mutation standardMutation = null;
        org.apache.cassandra.db.Mutation counterMutation = null;

        Map<String, List<Mutation>> columnFamilyToMutations = mutationEntry.getValue();
        for (Map.Entry<String, List<Mutation>> columnFamilyMutations : columnFamilyToMutations.entrySet())
        {
            String cfName = columnFamilyMutations.getKey();

            cState.hasColumnFamilyAccess(keyspace, cfName, Permission.MODIFY);

            CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, cfName);
            ThriftValidation.validateKey(metadata, key);

            org.apache.cassandra.db.Mutation mutation;
            if (metadata.isCounter())
            {
                ThriftConversion.fromThrift(consistency_level).validateCounterForWrite(metadata);
                counterMutation = counterMutation == null ? new org.apache.cassandra.db.Mutation(keyspace, key) : counterMutation;
                mutation = counterMutation;
            }
            else
            {
                standardMutation = standardMutation == null ? new org.apache.cassandra.db.Mutation(keyspace, key) : standardMutation;
                mutation = standardMutation;
            }

            for (Mutation m : columnFamilyMutations.getValue())
            {
                ThriftValidation.validateMutation(metadata, m);

                if (m.deletion != null)
                {
                    deleteColumnOrSuperColumn(mutation, metadata, m.deletion);
                }
                if (m.column_or_supercolumn != null)
                {
                    addColumnOrSuperColumn(mutation, metadata, m.column_or_supercolumn);
                }
            }
        }
        if (standardMutation != null && !standardMutation.isEmpty())
            mutations.add(standardMutation);

        if (counterMutation != null && !counterMutation.isEmpty())
        {
            if (allowCounterMutations)
                mutations.add(new CounterMutation(counterMutation, ThriftConversion.fromThrift(consistency_level)));
            else
                throw new org.apache.cassandra.exceptions.InvalidRequestException("Counter mutations are not allowed in atomic batches");
        }
    }

    return mutations;
}