Examples with Indexes org.apache.cassandra.schema.Indexes used on opensource projects

Example 1 with Indexes

use of org.apache.cassandra.schema.Indexes in project cassandra by apache.

the class AlterTableStatement method announceMigration.

public Event.SchemaChange announceMigration(QueryState queryState, boolean isLocalOnly) throws RequestValidationException {
    TableMetadata current = Schema.instance.validateTable(keyspace(), columnFamily());
    if (current.isView())
        throw new InvalidRequestException("Cannot use ALTER TABLE on Materialized View");
    TableMetadata.Builder builder = current.unbuild();
    ColumnIdentifier columnName = null;
    ColumnMetadata def = null;
    CQL3Type.Raw dataType = null;
    boolean isStatic = false;
    CQL3Type validator = null;
    List<ViewMetadata> viewUpdates = new ArrayList<>();
    Iterable<ViewMetadata> views = View.findAll(keyspace(), columnFamily());
    switch(oType) {
        case ALTER:
            throw new InvalidRequestException("Altering of types is not allowed");
        case ADD:
            if (current.isDense())
                throw new InvalidRequestException("Cannot add new column to a COMPACT STORAGE table");
            for (AlterTableStatementColumn colData : colNameList) {
                columnName = colData.getColumnName().getIdentifier(current);
                def = builder.getColumn(columnName);
                dataType = colData.getColumnType();
                assert dataType != null;
                isStatic = colData.getStaticType();
                validator = dataType.prepare(keyspace());
                if (isStatic) {
                    if (!current.isCompound())
                        throw new InvalidRequestException("Static columns are not allowed in COMPACT STORAGE tables");
                    if (current.clusteringColumns().isEmpty())
                        throw new InvalidRequestException("Static columns are only useful (and thus allowed) if the table has at least one clustering column");
                }
                if (def != null) {
                    switch(def.kind) {
                        case PARTITION_KEY:
                        case CLUSTERING:
                            throw new InvalidRequestException(String.format("Invalid column name %s because it conflicts with a PRIMARY KEY part", columnName));
                        default:
                            throw new InvalidRequestException(String.format("Invalid column name %s because it conflicts with an existing column", columnName));
                    }
                }
                // Cannot re-add a dropped counter column. See #7831.
                if (current.isCounter() && current.getDroppedColumn(columnName.bytes) != null)
                    throw new InvalidRequestException(String.format("Cannot re-add previously dropped counter column %s", columnName));
                AbstractType<?> type = validator.getType();
                if (type.isCollection() && type.isMultiCell()) {
                    if (!current.isCompound())
                        throw new InvalidRequestException("Cannot use non-frozen collections in COMPACT STORAGE tables");
                    if (current.isSuper())
                        throw new InvalidRequestException("Cannot use non-frozen collections with super column families");
                    // If there used to be a non-frozen collection column with the same name (that has been dropped),
                    // we could still have some data using the old type, and so we can't allow adding a collection
                    // with the same name unless the types are compatible (see #6276).
                    DroppedColumn dropped = current.droppedColumns.get(columnName.bytes);
                    if (dropped != null && dropped.column.type instanceof CollectionType && dropped.column.type.isMultiCell() && !type.isCompatibleWith(dropped.column.type)) {
                        String message = String.format("Cannot add a collection with the name %s because a collection with the same name" + " and a different type (%s) has already been used in the past", columnName, dropped.column.type.asCQL3Type());
                        throw new InvalidRequestException(message);
                    }
                }
                builder.addColumn(isStatic ? ColumnMetadata.staticColumn(current, columnName.bytes, type) : ColumnMetadata.regularColumn(current, columnName.bytes, type));
                // as well
                if (!isStatic)
                    for (ViewMetadata view : views) if (view.includeAllColumns)
                        viewUpdates.add(view.withAddedRegularColumn(ColumnMetadata.regularColumn(view.metadata, columnName.bytes, type)));
            }
            break;
        case DROP:
            if (!current.isCQLTable())
                throw new InvalidRequestException("Cannot drop columns from a non-CQL3 table");
            for (AlterTableStatementColumn colData : colNameList) {
                columnName = colData.getColumnName().getIdentifier(current);
                def = builder.getColumn(columnName);
                if (def == null)
                    throw new InvalidRequestException(String.format("Column %s was not found in table %s", columnName, columnFamily()));
                switch(def.kind) {
                    case PARTITION_KEY:
                    case CLUSTERING:
                        throw new InvalidRequestException(String.format("Cannot drop PRIMARY KEY part %s", columnName));
                    case REGULAR:
                    case STATIC:
                        builder.removeRegularOrStaticColumn(def.name);
                        builder.recordColumnDrop(def, deleteTimestamp == null ? queryState.getTimestamp() : deleteTimestamp);
                        break;
                }
                // If the dropped column is required by any secondary indexes
                // we reject the operation, as the indexes must be dropped first
                Indexes allIndexes = current.indexes;
                if (!allIndexes.isEmpty()) {
                    ColumnFamilyStore store = Keyspace.openAndGetStore(current);
                    Set<IndexMetadata> dependentIndexes = store.indexManager.getDependentIndexes(def);
                    if (!dependentIndexes.isEmpty()) {
                        throw new InvalidRequestException(String.format("Cannot drop column %s because it has " + "dependent secondary indexes (%s)", def, dependentIndexes.stream().map(i -> i.name).collect(Collectors.joining(","))));
                    }
                }
                // If a column is dropped which is included in a view, we don't allow the drop to take place.
                boolean rejectAlter = false;
                StringBuilder viewNames = new StringBuilder();
                for (ViewMetadata view : views) {
                    if (!view.includes(columnName))
                        continue;
                    if (rejectAlter)
                        viewNames.append(',');
                    rejectAlter = true;
                    viewNames.append(view.name);
                }
                if (rejectAlter)
                    throw new InvalidRequestException(String.format("Cannot drop column %s, depended on by materialized views (%s.{%s})", columnName.toString(), keyspace(), viewNames.toString()));
            }
            break;
        case OPTS:
            if (attrs == null)
                throw new InvalidRequestException("ALTER TABLE WITH invoked, but no parameters found");
            attrs.validate();
            TableParams params = attrs.asAlteredTableParams(current.params);
            if (!Iterables.isEmpty(views) && params.gcGraceSeconds == 0) {
                throw new InvalidRequestException("Cannot alter gc_grace_seconds of the base table of a " + "materialized view to 0, since this value is used to TTL " + "undelivered updates. Setting gc_grace_seconds too low might " + "cause undelivered updates to expire " + "before being replayed.");
            }
            if (current.isCounter() && params.defaultTimeToLive > 0)
                throw new InvalidRequestException("Cannot set default_time_to_live on a table with counters");
            builder.params(params);
            break;
        case RENAME:
            for (Map.Entry<ColumnMetadata.Raw, ColumnMetadata.Raw> entry : renames.entrySet()) {
                ColumnIdentifier from = entry.getKey().getIdentifier(current);
                ColumnIdentifier to = entry.getValue().getIdentifier(current);
                def = current.getColumn(from);
                if (def == null)
                    throw new InvalidRequestException(String.format("Cannot rename unknown column %s in table %s", from, current.name));
                if (current.getColumn(to) != null)
                    throw new InvalidRequestException(String.format("Cannot rename column %s to %s in table %s; another column of that name already exist", from, to, current.name));
                if (!def.isPrimaryKeyColumn())
                    throw new InvalidRequestException(String.format("Cannot rename non PRIMARY KEY part %s", from));
                if (!current.indexes.isEmpty()) {
                    ColumnFamilyStore store = Keyspace.openAndGetStore(current);
                    Set<IndexMetadata> dependentIndexes = store.indexManager.getDependentIndexes(def);
                    if (!dependentIndexes.isEmpty())
                        throw new InvalidRequestException(String.format("Cannot rename column %s because it has " + "dependent secondary indexes (%s)", from, dependentIndexes.stream().map(i -> i.name).collect(Collectors.joining(","))));
                }
                builder.renamePrimaryKeyColumn(from, to);
                // If the view includes a renamed column, it must be renamed in the view table and the definition.
                for (ViewMetadata view : views) {
                    if (!view.includes(from))
                        continue;
                    ColumnIdentifier viewFrom = entry.getKey().getIdentifier(view.metadata);
                    ColumnIdentifier viewTo = entry.getValue().getIdentifier(view.metadata);
                    viewUpdates.add(view.renamePrimaryKeyColumn(viewFrom, viewTo));
                }
            }
            break;
    }
    // FIXME: Should really be a single announce for the table and views.
    MigrationManager.announceTableUpdate(builder.build(), isLocalOnly);
    for (ViewMetadata viewUpdate : viewUpdates) MigrationManager.announceViewUpdate(viewUpdate, isLocalOnly);
    return new Event.SchemaChange(Event.SchemaChange.Change.UPDATED, Event.SchemaChange.Target.TABLE, keyspace(), columnFamily());
}

Example 2 with Indexes

use of org.apache.cassandra.schema.Indexes in project cassandra by apache.

the class CustomIndexTest method assertIndexCreated.

private void assertIndexCreated(String name, Map<String, String> options, List<IndexTarget> targets) {
    // all tests here use StubIndex as the custom index class,
    // so add that to the map of options
    options.put(CUSTOM_INDEX_OPTION_NAME, StubIndex.class.getName());
    IndexMetadata expected = IndexMetadata.fromIndexTargets(targets, name, IndexMetadata.Kind.CUSTOM, options);
    Indexes indexes = getCurrentColumnFamilyStore().metadata().indexes;
    for (IndexMetadata actual : indexes) if (actual.equals(expected))
        return;
    fail(String.format("Index %s not found", expected));
}

Example 3 with Indexes

use of org.apache.cassandra.schema.Indexes in project cassandra by apache.

the class SecondaryIndexManager method reload.

/**
     * Drops and adds new indexes associated with the underlying CF
     */
public void reload() {
    // figure out what needs to be added and dropped.
    Indexes tableIndexes = baseCfs.metadata().indexes;
    indexes.keySet().stream().filter(indexName -> !tableIndexes.has(indexName)).forEach(this::removeIndex);
    // some may not have been created here yet, only added to schema
    for (IndexMetadata tableIndex : tableIndexes) addIndex(tableIndex);
}

Example 4 with Indexes

use of org.apache.cassandra.schema.Indexes in project cassandra by apache.

the class SecondaryIndexManager method indexPartition.

/**
     * When building an index against existing data in sstables, add the given partition to the index
     */
public void indexPartition(DecoratedKey key, Set<Index> indexes, int pageSize) {
    if (logger.isTraceEnabled())
        logger.trace("Indexing partition {}", baseCfs.metadata().partitionKeyType.getString(key.getKey()));
    if (!indexes.isEmpty()) {
        SinglePartitionReadCommand cmd = SinglePartitionReadCommand.fullPartitionRead(baseCfs.metadata(), FBUtilities.nowInSeconds(), key);
        int nowInSec = cmd.nowInSec();
        boolean readStatic = false;
        SinglePartitionPager pager = new SinglePartitionPager(cmd, null, ProtocolVersion.CURRENT);
        while (!pager.isExhausted()) {
            try (ReadExecutionController controller = cmd.executionController();
                OpOrder.Group writeGroup = Keyspace.writeOrder.start();
                UnfilteredPartitionIterator page = pager.fetchPageUnfiltered(baseCfs.metadata(), pageSize, controller)) {
                if (!page.hasNext())
                    break;
                try (UnfilteredRowIterator partition = page.next()) {
                    Set<Index.Indexer> indexers = indexes.stream().map(index -> index.indexerFor(key, partition.columns(), nowInSec, writeGroup, IndexTransaction.Type.UPDATE)).filter(Objects::nonNull).collect(Collectors.toSet());
                    // Short-circuit empty partitions if static row is processed or isn't read
                    if (!readStatic && partition.isEmpty() && partition.staticRow().isEmpty())
                        break;
                    indexers.forEach(Index.Indexer::begin);
                    if (!readStatic) {
                        if (!partition.staticRow().isEmpty())
                            indexers.forEach(indexer -> indexer.insertRow(partition.staticRow()));
                        indexers.forEach((Index.Indexer i) -> i.partitionDelete(partition.partitionLevelDeletion()));
                        readStatic = true;
                    }
                    MutableDeletionInfo.Builder deletionBuilder = MutableDeletionInfo.builder(partition.partitionLevelDeletion(), baseCfs.getComparator(), false);
                    while (partition.hasNext()) {
                        Unfiltered unfilteredRow = partition.next();
                        if (unfilteredRow.isRow()) {
                            Row row = (Row) unfilteredRow;
                            indexers.forEach(indexer -> indexer.insertRow(row));
                        } else {
                            assert unfilteredRow.isRangeTombstoneMarker();
                            RangeTombstoneMarker marker = (RangeTombstoneMarker) unfilteredRow;
                            deletionBuilder.add(marker);
                        }
                    }
                    MutableDeletionInfo deletionInfo = deletionBuilder.build();
                    if (deletionInfo.hasRanges()) {
                        Iterator<RangeTombstone> iter = deletionInfo.rangeIterator(false);
                        while (iter.hasNext()) indexers.forEach(indexer -> indexer.rangeTombstone(iter.next()));
                    }
                    indexers.forEach(Index.Indexer::finish);
                }
            }
        }
    }
}