Package org.apache.cassandra.db.filter

Examples of org.apache.cassandra.db.filter.QueryFilter

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    public static synchronized Collection<KSMetaData> loadFromStorage(UUID version) throws IOException
    {
        DecoratedKey vkey = StorageService.getPartitioner().decorateKey(Migration.toUTF8Bytes(version));
        Table defs = Table.open(Table.SYSTEM_TABLE);
        ColumnFamilyStore cfStore = defs.getColumnFamilyStore(Migration.SCHEMA_CF);
        QueryFilter filter = QueryFilter.getIdentityFilter(vkey, new QueryPath(Migration.SCHEMA_CF));
        ColumnFamily cf = cfStore.getColumnFamily(filter);
        IColumn avroschema = cf.getColumn(DEFINITION_SCHEMA_COLUMN_NAME);
        if (avroschema == null)
            // TODO: more polite way to handle this?
            throw new RuntimeException("Cannot read system table! Are you upgrading a pre-release version?");
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                // First check if this row is in the rowCache. If it is we can skip the rest
                ColumnFamily cached = cfs.getRawCachedRow(key);
                if (cached != null)
                {
                    QueryFilter keyFilter = new QueryFilter(key, filter.path, filter.filter);
                    returnCF = cfs.filterColumnFamily(cached, keyFilter, gcBefore);
                }
                else if (colCollated.hasNext())
                {
                    filter.collectCollatedColumns(returnCF, colCollated, gcBefore);
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    public static UUID getLastMigrationId()
    {
        DecoratedKey dkey = StorageService.getPartitioner().decorateKey(LAST_MIGRATION_KEY);
        Table defs = Table.open(Table.SYSTEM_TABLE);
        ColumnFamilyStore cfStore = defs.getColumnFamilyStore(SCHEMA_CF);
        QueryFilter filter = QueryFilter.getNamesFilter(dkey, new QueryPath(SCHEMA_CF), LAST_MIGRATION_KEY);
        ColumnFamily cf = cfStore.getColumnFamily(filter);
        if (cf == null || cf.getColumnNames().size() == 0)
            return null;
        else
            return UUIDGen.getUUID(cf.getColumn(LAST_MIGRATION_KEY).value());
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    public static Collection<IColumn> getLocalMigrations(UUID start, UUID end)
    {
        DecoratedKey dkey = StorageService.getPartitioner().decorateKey(MIGRATIONS_KEY);
        Table defs = Table.open(Table.SYSTEM_TABLE);
        ColumnFamilyStore cfStore = defs.getColumnFamilyStore(Migration.MIGRATIONS_CF);
        QueryFilter filter = QueryFilter.getSliceFilter(dkey,
                                                        new QueryPath(MIGRATIONS_CF),
                                                        ByteBuffer.wrap(UUIDGen.decompose(start)),
                                                        ByteBuffer.wrap(UUIDGen.decompose(end)),
                                                        false,
                                                        100);
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        DecoratedKey dkey = StorageService.getPartitioner().decorateKey(key);
        ByteBuffer startColumn = ByteBufferUtil.EMPTY_BYTE_BUFFER;
        while (true)
        {
            QueryFilter filter = QueryFilter.getSliceFilter(dkey, new QueryPath(cfs.getColumnFamilyName()), startColumn, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, pageSize);
            ColumnFamily cf = cfs.getColumnFamily(filter);
            if (pagingFinished(cf, startColumn))
                break;
            if (cf.getColumnNames().isEmpty())
            {
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        ByteBuffer startColumn = ByteBufferUtil.EMPTY_BYTE_BUFFER;

        delivery:
        while (true)
        {
            QueryFilter filter = QueryFilter.getSliceFilter(epkey, new QueryPath(HINTS_CF), startColumn, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, PAGE_SIZE);
            ColumnFamily hintColumnFamily = ColumnFamilyStore.removeDeleted(hintStore.getColumnFamily(filter), Integer.MAX_VALUE);
            if (pagingFinished(hintColumnFamily, startColumn))
                break;
            for (IColumn keyColumn : hintColumnFamily.getSortedColumns())
            {
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    public static void purgeIncompatibleHints() throws IOException
    {
        // 0.6->0.7
        final ByteBuffer hintsPurged6to7 = ByteBufferUtil.bytes("Hints purged as part of upgrading from 0.6.x to 0.7");
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter dotSeven = QueryFilter.getNamesFilter(decorate(COOKIE_KEY), new QueryPath(STATUS_CF), hintsPurged6to7);
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(dotSeven);
        if (cf == null)
        {
            // upgrading from 0.6 to 0.7.
            logger.info("Upgrading to 0.7. Purging hints if there are any. Old hints will be snapshotted.");
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    public static HashMap<Token, InetAddress> loadTokens()
    {
        HashMap<Token, InetAddress> tokenMap = new HashMap<Token, InetAddress>();
        IPartitioner p = StorageService.getPartitioner();
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getIdentityFilter(decorate(RING_KEY), new QueryPath(STATUS_CF));
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);
        if (cf != null)
        {
            for (IColumn column : cf.getSortedColumns())
            {
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        }
       
        SortedSet<ByteBuffer> cols = new TreeSet<ByteBuffer>(BytesType.instance);
        cols.add(PARTITIONER);
        cols.add(CLUSTERNAME);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(LOCATION_KEY), new QueryPath(STATUS_CF), cols);
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);
       
        if (cf == null)
        {
            // this is either a brand new node (there will be no files), or the partitioner was changed from RP to OPP.
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    }

    public static Token getSavedToken()
    {
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(LOCATION_KEY), new QueryPath(STATUS_CF), TOKEN);
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);
        return cf == null ? null : StorageService.getPartitioner().getTokenFactory().fromByteArray(cf.getColumn(TOKEN).value());
    }
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Related Classes of org.apache.cassandra.db.filter.QueryFilter

  • com.stratio.cassandra.index.RowServiceSkinny
  • com.stratio.cassandra.index.RowServiceWide
  • org.apache.cassandra.db.BatchlogManager
  • org.apache.cassandra.db.Cell
  • org.apache.cassandra.db.CollationController
  • org.apache.cassandra.db.CollationControllerTest
  • org.apache.cassandra.db.ColumnFamily
  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.ColumnFamilyStoreTest
  • org.apache.cassandra.db.columniterator.IdentityQueryFilter
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