Examples with ThriftUdfPage com.facebook.presto.thrift.api.udf.ThriftUdfPage used on opensource projects

Example 1 with ThriftUdfPage

use of com.facebook.presto.thrift.api.udf.ThriftUdfPage in project presto by prestodb.

the class ThriftSqlFunctionExecutor method toSqlFunctionResult.

private SqlFunctionResult toSqlFunctionResult(ThriftUdfResult result, Type returnType) {
    ThriftUdfPage page = result.getResult();
    switch(page.getPageFormat()) {
        case PRESTO_THRIFT:
            return new SqlFunctionResult(getOnlyElement(page.getThriftPage().getThriftBlocks()).toBlock(returnType), result.getUdfStats().getTotalCpuTimeMs());
        case PRESTO_SERIALIZED:
            checkState(blockEncodingSerde != null, "blockEncodingSerde not set");
            PagesSerde pagesSerde = new PagesSerde(blockEncodingSerde, Optional.empty(), Optional.empty(), Optional.empty());
            return new SqlFunctionResult(pagesSerde.deserialize(page.getPrestoPage().toSerializedPage()).getBlock(0), result.getUdfStats().getTotalCpuTimeMs());
        default:
            throw new IllegalArgumentException(format("Unknown page format: %s", page.getPageFormat()));
    }
}

Example 2 with ThriftUdfPage

use of com.facebook.presto.thrift.api.udf.ThriftUdfPage in project presto by prestodb.

the class ThriftSqlFunctionExecutor method executeFunction.

@Override
public CompletableFuture<SqlFunctionResult> executeFunction(String source, RemoteScalarFunctionImplementation functionImplementation, Page input, List<Integer> channels, List<Type> argumentTypes, Type returnType) {
    ThriftUdfPage page = buildThriftPage(functionImplementation, input, channels, argumentTypes);
    SqlFunctionHandle functionHandle = functionImplementation.getFunctionHandle();
    SqlFunctionId functionId = functionHandle.getFunctionId();
    ThriftFunctionHandle thriftFunctionHandle = new ThriftFunctionHandle(functionId.getFunctionName().toString(), functionId.getArgumentTypes().stream().map(TypeSignature::toString).collect(toImmutableList()), returnType.toString(), functionHandle.getVersion());
    ThriftUdfService thriftUdfService = thriftUdfClient.get(Optional.of(functionImplementation.getLanguage().getLanguage()));
    return invokeUdfWithRetry(thriftUdfService, new ThriftUdfRequest(source, thriftFunctionHandle, page)).thenApply(thriftResult -> toSqlFunctionResult(thriftResult, returnType));
}

Example 3 with ThriftUdfPage

use of com.facebook.presto.thrift.api.udf.ThriftUdfPage in project presto by prestodb.

the class EchoFirstInputThriftUdfService method invokeUdf.

@Override
public ListenableFuture<ThriftUdfResult> invokeUdf(ThriftUdfRequest request) throws ThriftUdfServiceException {
    ThriftUdfPage inputs = request.getInputs();
    ThriftUdfPage result;
    switch(inputs.getPageFormat()) {
        case PRESTO_THRIFT:
            PrestoThriftPage thriftPage = inputs.getThriftPage();
            if (thriftPage.getThriftBlocks().isEmpty()) {
                throw toThriftUdfServiceException(false, EchoFirstInputErrorCode.GENERIC_INTERNAL_ERROR.toErrorCode(), new UnsupportedOperationException("No input to echo"));
            }
            result = thriftPage(new PrestoThriftPage(ImmutableList.of(thriftPage.getThriftBlocks().get(0)), inputs.getThriftPage().getPositionCount()));
            break;
        case PRESTO_SERIALIZED:
            PagesSerde pagesSerde = new PagesSerde(blockEncodingSerde, Optional.empty(), Optional.empty(), Optional.empty());
            Page page = pagesSerde.deserialize(inputs.getPrestoPage().toSerializedPage());
            if (page.getChannelCount() == 0) {
                throw toThriftUdfServiceException(false, EchoFirstInputErrorCode.GENERIC_INTERNAL_ERROR.toErrorCode(), new UnsupportedOperationException("No input to echo"));
            }
            result = prestoPage(pagesSerde.serialize(new Page(page.getBlock(0))));
            break;
        default:
            throw new UnsupportedOperationException();
    }
    return immediateFuture(new ThriftUdfResult(result, new ThriftUdfStats(100)));
}