Examples with IHyracksDataset org.apache.hyracks.api.dataset.IHyracksDataset used on opensource projects

Example 1 with IHyracksDataset

use of org.apache.hyracks.api.dataset.IHyracksDataset in project asterixdb by apache.

the class RestApiServlet method doHandle.

private void doHandle(IServletResponse response, String query, SessionOutput sessionOutput, ResultDelivery resultDelivery) throws JsonProcessingException {
    try {
        response.setStatus(HttpResponseStatus.OK);
        IHyracksClientConnection hcc = (IHyracksClientConnection) ctx.get(HYRACKS_CONNECTION_ATTR);
        IHyracksDataset hds = (IHyracksDataset) ctx.get(HYRACKS_DATASET_ATTR);
        if (hds == null) {
            synchronized (ctx) {
                hds = (IHyracksDataset) ctx.get(HYRACKS_DATASET_ATTR);
                if (hds == null) {
                    hds = new HyracksDataset(hcc, appCtx.getCompilerProperties().getFrameSize(), ResultReader.NUM_READERS);
                    ctx.put(HYRACKS_DATASET_ATTR, hds);
                }
            }
        }
        IParser parser = parserFactory.createParser(query);
        List<Statement> aqlStatements = parser.parse();
        validate(aqlStatements);
        MetadataManager.INSTANCE.init();
        IStatementExecutor translator = statementExecutorFactory.create(appCtx, aqlStatements, sessionOutput, compilationProvider, componentProvider);
        translator.compileAndExecute(hcc, hds, resultDelivery, null, new IStatementExecutor.Stats());
    } catch (AsterixException | TokenMgrError | org.apache.asterix.aqlplus.parser.TokenMgrError pe) {
        response.setStatus(HttpResponseStatus.INTERNAL_SERVER_ERROR);
        GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, pe.getMessage(), pe);
        String errorMessage = ResultUtil.buildParseExceptionMessage(pe, query);
        ObjectNode errorResp = ResultUtil.getErrorResponse(2, errorMessage, "", ResultUtil.extractFullStackTrace(pe));
        sessionOutput.out().write(new ObjectMapper().writeValueAsString(errorResp));
    } catch (Exception e) {
        GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, e.getMessage(), e);
        response.setStatus(HttpResponseStatus.INTERNAL_SERVER_ERROR);
        ResultUtil.apiErrorHandler(sessionOutput.out(), e);
    }
}

Example 2 with IHyracksDataset

use of org.apache.hyracks.api.dataset.IHyracksDataset in project asterixdb by apache.

the class QueryStatusApiServlet method get.

@Override
protected void get(IServletRequest request, IServletResponse response) throws Exception {
    final String strHandle = localPath(request);
    final ResultHandle handle = ResultHandle.parse(strHandle);
    if (handle == null) {
        response.setStatus(HttpResponseStatus.BAD_REQUEST);
        return;
    }
    IHyracksDataset hds = getHyracksDataset();
    ResultReader resultReader = new ResultReader(hds, handle.getJobId(), handle.getResultSetId());
    final DatasetJobRecord.Status resultReaderStatus = resultReader.getStatus();
    if (resultReaderStatus == null) {
        LOGGER.log(Level.INFO, "No results for: \"" + strHandle + "\"");
        response.setStatus(HttpResponseStatus.NOT_FOUND);
        return;
    }
    ResultStatus resultStatus = resultStatus(resultReaderStatus);
    Exception ex = extractException(resultReaderStatus);
    final StringWriter stringWriter = new StringWriter();
    final PrintWriter resultWriter = new PrintWriter(stringWriter);
    HttpUtil.setContentType(response, HttpUtil.ContentType.APPLICATION_JSON, HttpUtil.Encoding.UTF8);
    HttpResponseStatus httpStatus = HttpResponseStatus.OK;
    resultWriter.print("{\n");
    ResultUtil.printStatus(resultWriter, resultStatus, (ex != null) || ResultStatus.SUCCESS == resultStatus);
    if (ResultStatus.SUCCESS == resultStatus) {
        String servletPath = servletPath(request).replace("status", "result");
        String resHandle = "http://" + host(request) + servletPath + strHandle;
        printHandle(resultWriter, resHandle, false);
    } else if (ex != null) {
        ResultUtil.printError(resultWriter, ex, false);
    }
    resultWriter.print("}\n");
    resultWriter.flush();
    String result = stringWriter.toString();
    response.setStatus(httpStatus);
    response.writer().print(result);
    if (response.writer().checkError()) {
        LOGGER.warning("Error flushing output writer");
    }
}

Example 3 with IHyracksDataset

use of org.apache.hyracks.api.dataset.IHyracksDataset in project asterixdb by apache.

the class AbstractIntegrationTest method readResults.

protected List<String> readResults(JobSpecification spec, JobId jobId, ResultSetId resultSetId) throws Exception {
    int nReaders = 1;
    IFrameTupleAccessor frameTupleAccessor = new ResultFrameTupleAccessor();
    IHyracksDataset hyracksDataset = new HyracksDataset(hcc, spec.getFrameSize(), nReaders);
    IHyracksDatasetReader reader = hyracksDataset.createReader(jobId, resultSetId);
    List<String> resultRecords = new ArrayList<>();
    ByteBufferInputStream bbis = new ByteBufferInputStream();
    FrameManager resultDisplayFrameMgr = new FrameManager(spec.getFrameSize());
    VSizeFrame frame = new VSizeFrame(resultDisplayFrameMgr);
    int readSize = reader.read(frame);
    while (readSize > 0) {
        try {
            frameTupleAccessor.reset(frame.getBuffer());
            for (int tIndex = 0; tIndex < frameTupleAccessor.getTupleCount(); tIndex++) {
                int start = frameTupleAccessor.getTupleStartOffset(tIndex);
                int length = frameTupleAccessor.getTupleEndOffset(tIndex) - start;
                bbis.setByteBuffer(frame.getBuffer(), start);
                byte[] recordBytes = new byte[length];
                bbis.read(recordBytes, 0, length);
                resultRecords.add(new String(recordBytes, 0, length));
            }
        } finally {
            bbis.close();
        }
        readSize = reader.read(frame);
    }
    return resultRecords;
}

Example 4 with IHyracksDataset

use of org.apache.hyracks.api.dataset.IHyracksDataset in project asterixdb by apache.

the class AbstractQueryApiServlet method getHyracksDataset.

protected IHyracksDataset getHyracksDataset() throws Exception {
    // NOSONAR
    synchronized (ctx) {
        IHyracksDataset hds = (IHyracksDataset) ctx.get(HYRACKS_DATASET_ATTR);
        if (hds == null) {
            hds = (IHyracksDataset) ctx.get(HYRACKS_DATASET_ATTR);
            if (hds == null) {
                hds = new HyracksDataset(getHyracksClientConnection(), appCtx.getCompilerProperties().getFrameSize(), ResultReader.NUM_READERS);
                ctx.put(HYRACKS_DATASET_ATTR, hds);
            }
        }
        return hds;
    }
}

Example 5 with IHyracksDataset

use of org.apache.hyracks.api.dataset.IHyracksDataset in project asterixdb by apache.

the class ApiServlet method post.

@Override
protected void post(IServletRequest request, IServletResponse response) {
    // Query language
    ILangCompilationProvider compilationProvider = "AQL".equals(request.getParameter("query-language")) ? aqlCompilationProvider : sqlppCompilationProvider;
    IParserFactory parserFactory = compilationProvider.getParserFactory();
    // Output format.
    PrintWriter out = response.writer();
    OutputFormat format;
    boolean csvAndHeader = false;
    String output = request.getParameter("output-format");
    try {
        format = OutputFormat.valueOf(output);
    } catch (IllegalArgumentException e) {
        LOGGER.log(Level.INFO, output + ": unsupported output-format, using " + OutputFormat.CLEAN_JSON + " instead", e);
        // Default output format
        format = OutputFormat.CLEAN_JSON;
    }
    String query = request.getParameter("query");
    String wrapperArray = request.getParameter("wrapper-array");
    String printExprParam = request.getParameter("print-expr-tree");
    String printRewrittenExprParam = request.getParameter("print-rewritten-expr-tree");
    String printLogicalPlanParam = request.getParameter("print-logical-plan");
    String printOptimizedLogicalPlanParam = request.getParameter("print-optimized-logical-plan");
    String printJob = request.getParameter("print-job");
    String executeQuery = request.getParameter("execute-query");
    try {
        response.setStatus(HttpResponseStatus.OK);
        HttpUtil.setContentType(response, ContentType.TEXT_HTML, Encoding.UTF8);
    } catch (IOException e) {
        LOGGER.log(Level.WARNING, "Failure setting content type", e);
        response.setStatus(HttpResponseStatus.INTERNAL_SERVER_ERROR);
        return;
    }
    try {
        IHyracksClientConnection hcc = (IHyracksClientConnection) ctx.get(HYRACKS_CONNECTION_ATTR);
        IHyracksDataset hds = (IHyracksDataset) ctx.get(HYRACKS_DATASET_ATTR);
        if (hds == null) {
            synchronized (ctx) {
                hds = (IHyracksDataset) ctx.get(HYRACKS_DATASET_ATTR);
                if (hds == null) {
                    hds = new HyracksDataset(hcc, appCtx.getCompilerProperties().getFrameSize(), ResultReader.NUM_READERS);
                    ctx.put(HYRACKS_DATASET_ATTR, hds);
                }
            }
        }
        IParser parser = parserFactory.createParser(query);
        List<Statement> aqlStatements = parser.parse();
        SessionConfig sessionConfig = new SessionConfig(format, true, isSet(executeQuery), true);
        sessionConfig.set(SessionConfig.FORMAT_HTML, true);
        sessionConfig.set(SessionConfig.FORMAT_CSV_HEADER, csvAndHeader);
        sessionConfig.set(SessionConfig.FORMAT_WRAPPER_ARRAY, isSet(wrapperArray));
        sessionConfig.setOOBData(isSet(printExprParam), isSet(printRewrittenExprParam), isSet(printLogicalPlanParam), isSet(printOptimizedLogicalPlanParam), isSet(printJob));
        SessionOutput sessionOutput = new SessionOutput(sessionConfig, out);
        MetadataManager.INSTANCE.init();
        IStatementExecutor translator = statementExectorFactory.create(appCtx, aqlStatements, sessionOutput, compilationProvider, componentProvider);
        double duration;
        long startTime = System.currentTimeMillis();
        translator.compileAndExecute(hcc, hds, IStatementExecutor.ResultDelivery.IMMEDIATE, null, new IStatementExecutor.Stats());
        long endTime = System.currentTimeMillis();
        duration = (endTime - startTime) / 1000.00;
        out.println(HTML_STATEMENT_SEPARATOR);
        out.println("<PRE>Duration of all jobs: " + duration + " sec</PRE>");
    } catch (AsterixException | TokenMgrError | org.apache.asterix.aqlplus.parser.TokenMgrError pe) {
        GlobalConfig.ASTERIX_LOGGER.log(Level.INFO, pe.toString(), pe);
        ResultUtil.webUIParseExceptionHandler(out, pe, query);
    } catch (Exception e) {
        GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, e.getMessage(), e);
        ResultUtil.webUIErrorHandler(out, e);
    }
}