Package org.apache.cassandra.db.filter

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

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        ByteBuffer cacheKey = CassandraUtils.hashKeyBytes((core).getBytes("UTF-8"), CassandraUtils.delimeterBytes,
                "cache".getBytes("UTF-8"));

        RowMutation rm = new RowMutation(CassandraUtils.keySpace, cacheKey);
        rm.add(new QueryPath(CassandraUtils.schemaInfoColumnFamily, CassandraUtils.cachedColBytes,
                CassandraUtils.cachedColBytes), ByteBufferUtil.EMPTY_BYTE_BUFFER, System.currentTimeMillis());

        CassandraUtils.robustInsert(ConsistencyLevel.QUORUM, rm);

        // also directly notify the local readers
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        ByteBuffer keyKey = CassandraUtils.hashKeyBytes((indexName + "~" + term.text()).getBytes("UTF-8"),
                CassandraUtils.delimeterBytes, "keys".getBytes("UTF-8"));
        ByteBuffer keyCol = ByteBuffer.wrap(term.text().getBytes("UTF-8"));

        List<Row> rows = CassandraUtils.robustRead(keyKey, new QueryPath(CassandraUtils.schemaInfoColumnFamily),
                Arrays.asList(keyCol), ConsistencyLevel.QUORUM);

        if (rows.size() == 1)
        {
            Row row = rows.get(0);

            if (row.cf != null)
            {
                IColumn col = row.cf.getColumn(keyCol);

                if (col != null)
                {
                    ByteBuffer idCol = col.getSubColumns().iterator().next().name();
                    Long id = Long.valueOf(ByteBufferUtil.string(idCol));
                    int shard = CassandraIndexManager.getShardFromDocId(id);
                    int sid = CassandraIndexManager.getShardedDocId(id);

                    ByteBuffer sidName = ByteBuffer.wrap(String.valueOf(sid).getBytes("UTF-8"));

                    String subIndex = indexName + "~" + shard;

                    // Delete all terms/fields/etc
                    writer.deleteDocuments(subIndex, term, false);

                    // Delete key -> docId lookup
                    RowMutation rm = new RowMutation(CassandraUtils.keySpace, keyKey);
                    rm.delete(new QueryPath(CassandraUtils.schemaInfoColumnFamily, keyCol), System.currentTimeMillis());

                    // Delete docId so it can be reused
                    // TODO: update shard info with this docid
                    ByteBuffer idKey = CassandraUtils.hashKeyBytes(subIndex.getBytes("UTF-8"),
                            CassandraUtils.delimeterBytes, "ids".getBytes("UTF-8"));
                    RowMutation rm2 = new RowMutation(CassandraUtils.keySpace, idKey);
                    rm2.delete(new QueryPath(CassandraUtils.schemaInfoColumnFamily, sidName),
                            System.currentTimeMillis());

                    CassandraUtils.robustInsert(ConsistencyLevel.QUORUM, rm, rm2);

                    // Notify readers
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        if(lastCheck == null || lastCheck <= (System.currentTimeMillis() - CassandraUtils.cacheInvalidationInterval))
        {
       
            ByteBuffer keyKey = CassandraUtils.hashKeyBytes(indexName.getBytes("UTF-8"), CassandraUtils.delimeterBytes, "cache".getBytes("UTF-8"));

            List<Row> rows = CassandraUtils.robustRead(keyKey, new QueryPath(CassandraUtils.schemaInfoColumnFamily, CassandraUtils.cachedColBytes), Arrays
                    .asList(CassandraUtils.cachedColBytes), ConsistencyLevel.QUORUM);
           
           
            SolandraComponent.cacheCheck.put(indexName, System.currentTimeMillis());
           
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        RowMutation rm = new RowMutation(Table.SYSTEM_TABLE, versionKey);
        long now = System.currentTimeMillis();
        for (String ksname : ksnames)
        {
            KSMetaData ksm = DatabaseDescriptor.getTableDefinition(ksname);
            rm.add(new QueryPath(Migration.SCHEMA_CF, null, ByteBufferUtil.bytes(ksm.name)), SerDeUtils.serialize(ksm.deflate()), now);
        }
        // add the schema
        rm.add(new QueryPath(Migration.SCHEMA_CF,
                             null,
                             DEFINITION_SCHEMA_COLUMN_NAME),
                             ByteBufferUtil.bytes(org.apache.cassandra.avro.KsDef.SCHEMA$.toString()),
                             now);
        rm.apply();

        // apply new version
        rm = new RowMutation(Table.SYSTEM_TABLE, Migration.LAST_MIGRATION_KEY);
        rm.add(new QueryPath(Migration.SCHEMA_CF, null, Migration.LAST_MIGRATION_KEY),
               ByteBuffer.wrap(UUIDGen.decompose(version)),
               now);
        rm.apply();
    }
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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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        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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        if (!clientMode)
        {
            long now = System.currentTimeMillis();
            ByteBuffer buf = serialize();
            RowMutation migration = new RowMutation(Table.SYSTEM_TABLE, MIGRATIONS_KEY);
            migration.add(new QueryPath(MIGRATIONS_CF, null, ByteBuffer.wrap(UUIDGen.decompose(newVersion))), buf, now);
            migration.apply();
           
            // note that we're storing this in the system table, which is not replicated
            logger.info("Applying migration {} {}", newVersion.toString(), toString());
            migration = new RowMutation(Table.SYSTEM_TABLE, LAST_MIGRATION_KEY);
            migration.add(new QueryPath(SCHEMA_CF, null, LAST_MIGRATION_KEY), ByteBuffer.wrap(UUIDGen.decompose(newVersion)), now);
            migration.apply();

            // if we fail here, there will be schema changes in the CL that will get replayed *AFTER* the schema is loaded.
            // CassandraDaemon checks for this condition (the stored version will be greater than the loaded version)
            // and calls MigrationManager.applyMigrations(loaded version, stored version).
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    }

    private static void deleteHintKey(ByteBuffer endpointAddress, ByteBuffer key, ByteBuffer tableCF, long timestamp) throws IOException
    {
        RowMutation rm = new RowMutation(Table.SYSTEM_TABLE, endpointAddress);
        rm.delete(new QueryPath(HINTS_CF, key, tableCF), timestamp);
        rm.apply();
    }
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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 void deleteHintsForEndpoint(final InetAddress endpoint)
    {
        final String ipaddr = endpoint.getHostAddress();
        final ColumnFamilyStore hintStore = Table.open(Table.SYSTEM_TABLE).getColumnFamilyStore(HINTS_CF);
        final RowMutation rm = new RowMutation(Table.SYSTEM_TABLE, ByteBufferUtil.bytes(ipaddr));
        rm.delete(new QueryPath(HINTS_CF), System.currentTimeMillis());

        // execute asynchronously to avoid blocking caller (which may be processing gossip)
        Runnable runnable = new Runnable()
        {
            public void run()
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