Examples with PFunction org.apache.phoenix.parse.PFunction used on opensource projects

Example 6 with PFunction

use of org.apache.phoenix.parse.PFunction in project phoenix by apache.

the class PostDDLCompiler method compile.

public MutationPlan compile(final List<TableRef> tableRefs, final byte[] emptyCF, final List<byte[]> projectCFs, final List<PColumn> deleteList, final long timestamp) throws SQLException {
    PhoenixStatement statement = new PhoenixStatement(connection);
    final StatementContext context = new StatementContext(statement, new ColumnResolver() {

        @Override
        public List<TableRef> getTables() {
            return tableRefs;
        }

        @Override
        public TableRef resolveTable(String schemaName, String tableName) throws SQLException {
            throw new UnsupportedOperationException();
        }

        @Override
        public ColumnRef resolveColumn(String schemaName, String tableName, String colName) throws SQLException {
            throw new UnsupportedOperationException();
        }

        @Override
        public List<PFunction> getFunctions() {
            return Collections.<PFunction>emptyList();
        }

        @Override
        public PFunction resolveFunction(String functionName) throws SQLException {
            throw new FunctionNotFoundException(functionName);
        }

        @Override
        public boolean hasUDFs() {
            return false;
        }

        @Override
        public PSchema resolveSchema(String schemaName) throws SQLException {
            throw new SchemaNotFoundException(schemaName);
        }

        @Override
        public List<PSchema> getSchemas() {
            throw new UnsupportedOperationException();
        }
    }, scan, new SequenceManager(statement));
    return new BaseMutationPlan(context, Operation.UPSERT) {

        /* FIXME */
        @Override
        public MutationState execute() throws SQLException {
            if (tableRefs.isEmpty()) {
                return new MutationState(0, 1000, connection);
            }
            boolean wasAutoCommit = connection.getAutoCommit();
            try {
                connection.setAutoCommit(true);
                SQLException sqlE = null;
                /*
                     * Handles:
                     * 1) deletion of all rows for a DROP TABLE and subsequently deletion of all rows for a DROP INDEX;
                     * 2) deletion of all column values for a ALTER TABLE DROP COLUMN
                     * 3) updating the necessary rows to have an empty KV
                     * 4) updating table stats
                     */
                long totalMutationCount = 0;
                for (final TableRef tableRef : tableRefs) {
                    Scan scan = ScanUtil.newScan(context.getScan());
                    SelectStatement select = SelectStatement.COUNT_ONE;
                    // We need to use this tableRef
                    ColumnResolver resolver = new ColumnResolver() {

                        @Override
                        public List<TableRef> getTables() {
                            return Collections.singletonList(tableRef);
                        }

                        @Override
                        public java.util.List<PFunction> getFunctions() {
                            return Collections.emptyList();
                        }

                        ;

                        @Override
                        public TableRef resolveTable(String schemaName, String tableName) throws SQLException {
                            throw new UnsupportedOperationException();
                        }

                        @Override
                        public ColumnRef resolveColumn(String schemaName, String tableName, String colName) throws SQLException {
                            PColumn column = tableName != null ? tableRef.getTable().getColumnFamily(tableName).getPColumnForColumnName(colName) : tableRef.getTable().getColumnForColumnName(colName);
                            return new ColumnRef(tableRef, column.getPosition());
                        }

                        @Override
                        public PFunction resolveFunction(String functionName) throws SQLException {
                            throw new UnsupportedOperationException();
                        }

                        ;

                        @Override
                        public boolean hasUDFs() {
                            return false;
                        }

                        @Override
                        public List<PSchema> getSchemas() {
                            throw new UnsupportedOperationException();
                        }

                        @Override
                        public PSchema resolveSchema(String schemaName) throws SQLException {
                            throw new SchemaNotFoundException(schemaName);
                        }
                    };
                    PhoenixStatement statement = new PhoenixStatement(connection);
                    StatementContext context = new StatementContext(statement, resolver, scan, new SequenceManager(statement));
                    long ts = timestamp;
                    // in this case, so maybe this is ok.
                    if (ts != HConstants.LATEST_TIMESTAMP && tableRef.getTable().isTransactional()) {
                        ts = TransactionUtil.convertToNanoseconds(ts);
                    }
                    ScanUtil.setTimeRange(scan, scan.getTimeRange().getMin(), ts);
                    if (emptyCF != null) {
                        scan.setAttribute(BaseScannerRegionObserver.EMPTY_CF, emptyCF);
                        scan.setAttribute(BaseScannerRegionObserver.EMPTY_COLUMN_QUALIFIER, EncodedColumnsUtil.getEmptyKeyValueInfo(tableRef.getTable()).getFirst());
                    }
                    ServerCache cache = null;
                    try {
                        if (deleteList != null) {
                            if (deleteList.isEmpty()) {
                                scan.setAttribute(BaseScannerRegionObserver.DELETE_AGG, QueryConstants.TRUE);
                            // In the case of a row deletion, add index metadata so mutable secondary indexing works
                            /* TODO: we currently manually run a scan to delete the index data here
                                    ImmutableBytesWritable ptr = context.getTempPtr();
                                    tableRef.getTable().getIndexMaintainers(ptr);
                                    if (ptr.getLength() > 0) {
                                        IndexMetaDataCacheClient client = new IndexMetaDataCacheClient(connection, tableRef);
                                        cache = client.addIndexMetadataCache(context.getScanRanges(), ptr);
                                        byte[] uuidValue = cache.getId();
                                        scan.setAttribute(PhoenixIndexCodec.INDEX_UUID, uuidValue);
                                    }
                                    */
                            } else {
                                // In the case of the empty key value column family changing, do not send the index
                                // metadata, as we're currently managing this from the client. It's possible for the
                                // data empty column family to stay the same, while the index empty column family
                                // changes.
                                PColumn column = deleteList.get(0);
                                byte[] cq = column.getColumnQualifierBytes();
                                if (emptyCF == null) {
                                    scan.addColumn(column.getFamilyName().getBytes(), cq);
                                }
                                scan.setAttribute(BaseScannerRegionObserver.DELETE_CF, column.getFamilyName().getBytes());
                                scan.setAttribute(BaseScannerRegionObserver.DELETE_CQ, cq);
                            }
                        }
                        List<byte[]> columnFamilies = Lists.newArrayListWithExpectedSize(tableRef.getTable().getColumnFamilies().size());
                        if (projectCFs == null) {
                            for (PColumnFamily family : tableRef.getTable().getColumnFamilies()) {
                                columnFamilies.add(family.getName().getBytes());
                            }
                        } else {
                            for (byte[] projectCF : projectCFs) {
                                columnFamilies.add(projectCF);
                            }
                        }
                        // Need to project all column families into the scan, since we haven't yet created our empty key value
                        RowProjector projector = ProjectionCompiler.compile(context, SelectStatement.COUNT_ONE, GroupBy.EMPTY_GROUP_BY);
                        context.getAggregationManager().compile(context, GroupBy.EMPTY_GROUP_BY);
                        // since at this point we haven't added the empty key value everywhere.
                        if (columnFamilies != null) {
                            scan.getFamilyMap().clear();
                            for (byte[] family : columnFamilies) {
                                scan.addFamily(family);
                            }
                            projector = new RowProjector(projector, false);
                        }
                        // any other Post DDL operations.
                        try {
                            // Since dropping a VIEW does not affect the underlying data, we do
                            // not need to pass through the view statement here.
                            // Push where clause into scan
                            WhereCompiler.compile(context, select);
                        } catch (ColumnFamilyNotFoundException e) {
                            continue;
                        } catch (ColumnNotFoundException e) {
                            continue;
                        } catch (AmbiguousColumnException e) {
                            continue;
                        }
                        QueryPlan plan = new AggregatePlan(context, select, tableRef, projector, null, null, OrderBy.EMPTY_ORDER_BY, null, GroupBy.EMPTY_GROUP_BY, null);
                        try {
                            ResultIterator iterator = plan.iterator();
                            try {
                                Tuple row = iterator.next();
                                ImmutableBytesWritable ptr = context.getTempPtr();
                                totalMutationCount += (Long) projector.getColumnProjector(0).getValue(row, PLong.INSTANCE, ptr);
                            } catch (SQLException e) {
                                sqlE = e;
                            } finally {
                                try {
                                    iterator.close();
                                } catch (SQLException e) {
                                    if (sqlE == null) {
                                        sqlE = e;
                                    } else {
                                        sqlE.setNextException(e);
                                    }
                                } finally {
                                    if (sqlE != null) {
                                        throw sqlE;
                                    }
                                }
                            }
                        } catch (TableNotFoundException e) {
                        // Ignore and continue, as HBase throws when table hasn't been written to
                        // FIXME: Remove if this is fixed in 0.96
                        }
                    } finally {
                        if (cache != null) {
                            // Remove server cache if there is one
                            cache.close();
                        }
                    }
                }
                final long count = totalMutationCount;
                return new MutationState(1, 1000, connection) {

                    @Override
                    public long getUpdateCount() {
                        return count;
                    }
                };
            } finally {
                if (!wasAutoCommit)
                    connection.setAutoCommit(wasAutoCommit);
            }
        }
    };
}

Example 7 with PFunction

use of org.apache.phoenix.parse.PFunction in project phoenix by apache.

the class ConnectionQueryServicesImpl method addFunction.

@Override
public void addFunction(PFunction function) throws SQLException {
    synchronized (latestMetaDataLock) {
        try {
            throwConnectionClosedIfNullMetaData();
            // If existing table isn't older than new table, don't replace
            // If a client opens a connection at an earlier timestamp, this can happen
            PFunction existingFunction = latestMetaData.getFunction(new PTableKey(function.getTenantId(), function.getFunctionName()));
            if (existingFunction.getTimeStamp() >= function.getTimeStamp()) {
                return;
            }
        } catch (FunctionNotFoundException e) {
        }
        latestMetaData.addFunction(function);
        latestMetaDataLock.notifyAll();
    }
}

Example 8 with PFunction

use of org.apache.phoenix.parse.PFunction in project phoenix by apache.

the class ConnectionlessQueryServicesImpl method getFunctions.

@Override
public MetaDataMutationResult getFunctions(PName tenantId, List<Pair<byte[], Long>> functionNameAndTimeStampPairs, long clientTimestamp) throws SQLException {
    List<PFunction> functions = new ArrayList<PFunction>(functionNameAndTimeStampPairs.size());
    for (Pair<byte[], Long> functionInfo : functionNameAndTimeStampPairs) {
        try {
            PFunction function2 = metaData.getFunction(new PTableKey(tenantId, Bytes.toString(functionInfo.getFirst())));
            functions.add(function2);
        } catch (FunctionNotFoundException e) {
            return new MetaDataMutationResult(MutationCode.FUNCTION_NOT_FOUND, 0, null);
        }
    }
    if (functions.isEmpty()) {
        return null;
    }
    return new MetaDataMutationResult(MutationCode.FUNCTION_ALREADY_EXISTS, 0, functions, true);
}

Example 9 with PFunction

use of org.apache.phoenix.parse.PFunction in project phoenix by apache.

the class MetaDataClient method dropFunction.

private MutationState dropFunction(String functionName, boolean ifExists) throws SQLException {
    connection.rollback();
    boolean wasAutoCommit = connection.getAutoCommit();
    try {
        PName tenantId = connection.getTenantId();
        byte[] key = SchemaUtil.getFunctionKey(tenantId == null ? ByteUtil.EMPTY_BYTE_ARRAY : tenantId.getBytes(), Bytes.toBytes(functionName));
        Long scn = connection.getSCN();
        long clientTimeStamp = scn == null ? HConstants.LATEST_TIMESTAMP : scn;
        try {
            PFunction function = connection.getMetaDataCache().getFunction(new PTableKey(tenantId, functionName));
            if (function.isTemporaryFunction()) {
                connection.removeFunction(tenantId, functionName, clientTimeStamp);
                return new MutationState(0, 0, connection);
            }
        } catch (FunctionNotFoundException e) {
        }
        List<Mutation> functionMetaData = Lists.newArrayListWithExpectedSize(2);
        Delete functionDelete = new Delete(key, clientTimeStamp);
        functionMetaData.add(functionDelete);
        MetaDataMutationResult result = connection.getQueryServices().dropFunction(functionMetaData, ifExists);
        MutationCode code = result.getMutationCode();
        switch(code) {
            case FUNCTION_NOT_FOUND:
                if (!ifExists) {
                    throw new FunctionNotFoundException(functionName);
                }
                break;
            default:
                connection.removeFunction(tenantId, functionName, result.getMutationTime());
                break;
        }
        return new MutationState(0, 0, connection);
    } finally {
        connection.setAutoCommit(wasAutoCommit);
    }
}

Example 10 with PFunction

use of org.apache.phoenix.parse.PFunction in project phoenix by apache.

the class MetaDataClient method updateCache.

public MetaDataMutationResult updateCache(PName tenantId, List<String> functionNames, boolean alwaysHitServer) throws SQLException {
    // TODO: pass byte[] herez
    long clientTimeStamp = getClientTimeStamp();
    List<PFunction> functions = new ArrayList<PFunction>(functionNames.size());
    List<Long> functionTimeStamps = new ArrayList<Long>(functionNames.size());
    Iterator<String> iterator = functionNames.iterator();
    while (iterator.hasNext()) {
        PFunction function = null;
        try {
            String functionName = iterator.next();
            function = connection.getMetaDataCache().getFunction(new PTableKey(tenantId, functionName));
            if (function != null && !alwaysHitServer && function.getTimeStamp() == clientTimeStamp - 1) {
                functions.add(function);
                iterator.remove();
                continue;
            }
            if (function != null && function.getTimeStamp() != clientTimeStamp - 1) {
                functionTimeStamps.add(function.getTimeStamp());
            } else {
                functionTimeStamps.add(HConstants.LATEST_TIMESTAMP);
            }
        } catch (FunctionNotFoundException e) {
            functionTimeStamps.add(HConstants.LATEST_TIMESTAMP);
        }
    }
    // Don't bother with server call: we can't possibly find a newer function
    if (functionNames.isEmpty()) {
        return new MetaDataMutationResult(MutationCode.FUNCTION_ALREADY_EXISTS, QueryConstants.UNSET_TIMESTAMP, functions, true);
    }
    int maxTryCount = tenantId == null ? 1 : 2;
    int tryCount = 0;
    MetaDataMutationResult result;
    do {
        List<Pair<byte[], Long>> functionsToFecth = new ArrayList<Pair<byte[], Long>>(functionNames.size());
        for (int i = 0; i < functionNames.size(); i++) {
            functionsToFecth.add(new Pair<byte[], Long>(PVarchar.INSTANCE.toBytes(functionNames.get(i)), functionTimeStamps.get(i)));
        }
        result = connection.getQueryServices().getFunctions(tenantId, functionsToFecth, clientTimeStamp);
        MutationCode code = result.getMutationCode();
        // We found an updated table, so update our cache
        if (result.getFunctions() != null && !result.getFunctions().isEmpty()) {
            result.getFunctions().addAll(functions);
            addFunctionToCache(result);
            return result;
        } else {
            if (code == MutationCode.FUNCTION_ALREADY_EXISTS) {
                result.getFunctions().addAll(functions);
                addFunctionToCache(result);
                return result;
            }
            if (code == MutationCode.FUNCTION_NOT_FOUND && tryCount + 1 == maxTryCount) {
                for (Pair<byte[], Long> f : functionsToFecth) {
                    connection.removeFunction(tenantId, Bytes.toString(f.getFirst()), f.getSecond());
                }
                // TODO removeFunctions all together from cache when
                throw new FunctionNotFoundException(functionNames.toString() + " not found");
            }
        }
        // Try again with global tenantId
        tenantId = null;
    } while (++tryCount < maxTryCount);
    return result;
}