Examples with ObjectWriter com.fasterxml.jackson.databind.ObjectWriter used on opensource projects

Example 51 with ObjectWriter

use of com.fasterxml.jackson.databind.ObjectWriter in project series-rest-api by 52North.

the class BaseController method writeExceptionResponse.

private void writeExceptionResponse(WebException e, HttpServletResponse response, HttpStatus status) {
    final String logMessage = "An exception occured: \n {}";
    if (status == HttpStatus.INTERNAL_SERVER_ERROR) {
        LOGGER.error(logMessage, e);
    } else {
        LOGGER.debug(logMessage, e);
    }
    // TODO consider using a 'suppress_response_codes=true' parameter and always return 200 OK
    response.setStatus(status.value());
    response.setContentType(Constants.MimeType.APPLICATION_JSON.getMimeType());
    ObjectMapper objectMapper = createObjectMapper();
    ObjectWriter writer = objectMapper.writerFor(ExceptionResponse.class);
    ExceptionResponse exceptionResponse = ExceptionResponse.createExceptionResponse(e, status);
    try (OutputStream outputStream = response.getOutputStream()) {
        writer.writeValue(outputStream, exceptionResponse);
    } catch (IOException ioe) {
        LOGGER.error("Could not process error message.", ioe);
    }
}

Example 52 with ObjectWriter

use of com.fasterxml.jackson.databind.ObjectWriter in project dhis2-core by dhis2.

the class V2_33_5__Update_job_parameters_with_system_setting_values method migrate.

@Override
public void migrate(final Context context) throws Exception {
    // 1. Fetch data from SystemSettings if present
    int trackerPageSize = 0;
    int eventPageSize = 0;
    int dataValuesPageSize = 0;
    String sql = "SELECT value FROM systemsetting WHERE name = '" + TRACKER_PROGRAM_SYNC_PAGE_SIZE + "';";
    try (Statement stmt = context.getConnection().createStatement();
        ResultSet rs = stmt.executeQuery(sql)) {
        if (rs.next()) {
            trackerPageSize = (Integer) SerializationUtils.deserialize(rs.getBytes("value"));
        }
    }
    sql = "SELECT value FROM systemsetting WHERE name = '" + EVENT_PROGRAM_SYNC_PAGE_SIZE + "';";
    try (Statement stmt = context.getConnection().createStatement();
        ResultSet rs = stmt.executeQuery(sql)) {
        if (rs.next()) {
            eventPageSize = (Integer) SerializationUtils.deserialize(rs.getBytes("value"));
        }
    }
    sql = "SELECT value FROM systemsetting WHERE name = '" + DATA_VALUES_SYNC_PAGE_SIZE + "';";
    try (Statement stmt = context.getConnection().createStatement();
        ResultSet rs = stmt.executeQuery(sql)) {
        if (rs.next()) {
            dataValuesPageSize = (Integer) SerializationUtils.deserialize(rs.getBytes("value"));
        }
    }
    log.info("Following values were found in SystemSettings: trackerPageSize: " + trackerPageSize + ", eventPageSize: " + eventPageSize + ", dataValuePageSize: " + dataValuesPageSize);
    // 2. Update jobParameters with data from SystemSettings
    if (trackerPageSize > 0 || eventPageSize > 0 || dataValuesPageSize > 0) {
        Map<Integer, JobParameters> updatedJobParameters = new HashMap<>();
        ObjectMapper mapper = new ObjectMapper();
        mapper.activateDefaultTyping(BasicPolymorphicTypeValidator.builder().allowIfBaseType(JobParameters.class).build());
        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        JavaType resultingJavaType = mapper.getTypeFactory().constructType(JobParameters.class);
        ObjectReader reader = mapper.readerFor(resultingJavaType);
        ObjectWriter writer = mapper.writerFor(resultingJavaType);
        if (trackerPageSize > 0) {
            sql = "SELECT jobconfigurationid, jsonbjobparameters FROM jobconfiguration " + "WHERE jobtype = '" + JobType.TRACKER_PROGRAMS_DATA_SYNC.name() + "';";
            try (Statement stmt = context.getConnection().createStatement();
                ResultSet rs = stmt.executeQuery(sql)) {
                while (rs.next()) {
                    TrackerProgramsDataSynchronizationJobParameters jobparams = reader.readValue(rs.getString("jsonbjobparameters"));
                    jobparams.setPageSize(trackerPageSize);
                    updatedJobParameters.put(rs.getInt("jobconfigurationid"), jobparams);
                }
            }
        }
        if (eventPageSize > 0) {
            sql = "SELECT jobconfigurationid, jsonbjobparameters FROM jobconfiguration " + "WHERE jobtype = '" + JobType.EVENT_PROGRAMS_DATA_SYNC.name() + "';";
            try (Statement stmt = context.getConnection().createStatement();
                ResultSet rs = stmt.executeQuery(sql)) {
                while (rs.next()) {
                    EventProgramsDataSynchronizationJobParameters jobparams = reader.readValue(rs.getString("jsonbjobparameters"));
                    jobparams.setPageSize(eventPageSize);
                    updatedJobParameters.put(rs.getInt("jobconfigurationid"), jobparams);
                }
            }
        }
        sql = "SELECT jobconfigurationid, jsonbjobparameters FROM jobconfiguration " + "WHERE jobtype = '" + JobType.META_DATA_SYNC.name() + "';";
        try (Statement stmt = context.getConnection().createStatement();
            ResultSet rs = stmt.executeQuery(sql)) {
            while (rs.next()) {
                MetadataSyncJobParameters jobparams = reader.readValue(rs.getString("jsonbjobparameters"));
                if (trackerPageSize > 0) {
                    jobparams.setTrackerProgramPageSize(trackerPageSize);
                }
                if (eventPageSize > 0) {
                    jobparams.setEventProgramPageSize(eventPageSize);
                }
                if (dataValuesPageSize > 0) {
                    jobparams.setDataValuesPageSize(dataValuesPageSize);
                }
                updatedJobParameters.put(rs.getInt("jobconfigurationid"), jobparams);
            }
        }
        for (Map.Entry<Integer, JobParameters> jobParams : updatedJobParameters.entrySet()) {
            try (PreparedStatement ps = context.getConnection().prepareStatement("UPDATE jobconfiguration SET jsonbjobparameters = ? where  jobconfigurationid = ?;")) {
                PGobject pg = new PGobject();
                pg.setType("jsonb");
                pg.setValue(writer.writeValueAsString(jobParams.getValue()));
                ps.setObject(1, pg);
                ps.setInt(2, jobParams.getKey());
                ps.execute();
            }
        }
    }
    // 3. Remove entries from systemsetting table
    try (Statement stmt = context.getConnection().createStatement()) {
        stmt.executeUpdate("DELETE FROM systemsetting WHERE name IN ('" + TRACKER_PROGRAM_SYNC_PAGE_SIZE + "', '" + EVENT_PROGRAM_SYNC_PAGE_SIZE + "', '" + DATA_VALUES_SYNC_PAGE_SIZE + "');");
    }
}

Example 53 with ObjectWriter

use of com.fasterxml.jackson.databind.ObjectWriter in project xm-ms-entity by xm-online.

the class EntityToCsvConverterUtils method toCsv.

/**
 * Writes entities to csv file.
 * @param o the object which serialize to csv
 * @param schema the csv schema
 * @return byte array of csv file
 */
public static byte[] toCsv(Object o, CsvSchema schema) {
    if (o == null) {
        log.warn("Passed empty object for serialize, therefore return empty byte array which represents csv file");
        return new byte[0];
    }
    CsvMapper mapper = createDefaultCsvMapper();
    ObjectWriter csvWriter = mapper.writer(schema);
    try {
        return csvWriter.writeValueAsBytes(o);
    } catch (JsonProcessingException e) {
        throw new IllegalStateException("Exception while writing data to csv file", e);
    }
}

Example 54 with ObjectWriter

use of com.fasterxml.jackson.databind.ObjectWriter in project hive by apache.

the class HiveJsonWriter method write.

/**
 * Given an Object and an ObjectInspector, convert the structure into a JSON
 * text string.
 *
 * @param o The object to convert
 * @param objInspector The ObjectInspector describing the object
 * @return A String containing the JSON text
 * @throws SerDeException The object cannot be transformed
 */
public String write(final Object o, final ObjectInspector objInspector) throws SerDeException {
    final JsonNode rootNode = walkObjectGraph(objInspector, o, rootStructFieldNames);
    LOG.debug("Create JSON tree from Object tree: {}", rootNode);
    try {
        final ObjectWriter ow = isEnabled(Feature.PRETTY_PRINT) ? this.mapper.writerWithDefaultPrettyPrinter() : this.mapper.writer();
        return ow.writeValueAsString(rootNode);
    } catch (JsonProcessingException e) {
        throw new SerDeException(e);
    }
}

Example 55 with ObjectWriter

use of com.fasterxml.jackson.databind.ObjectWriter in project uPortal by Jasig.

the class JpaStatisticalSummaryTest method testStorelessUnivariateStatistic.

public void testStorelessUnivariateStatistic(StorelessUnivariateStatistic sus, double expected) throws Exception {
    assertEquals(expected, sus.getResult(), 0.1);
    final ObjectMapper mapper = new ObjectMapper();
    mapper.findAndRegisterModules();
    // Configure Jackson to just use fields
    mapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
    mapper.setVisibility(PropertyAccessor.GETTER, Visibility.NONE);
    mapper.setVisibility(PropertyAccessor.IS_GETTER, Visibility.NONE);
    mapper.setVisibility(PropertyAccessor.SETTER, Visibility.NONE);
    mapper.setVisibility(PropertyAccessor.CREATOR, Visibility.NONE);
    mapper.addMixInAnnotations(Object.class, IgnoreTypeMixIn.class);
    final FilterProvider filters = new SimpleFilterProvider().addFilter("storedDataFilter", SimpleBeanPropertyFilter.serializeAllExcept("storedData"));
    final ObjectWriter ssWriter = mapper.writer(filters);
    final ObjectReader ssReader = mapper.reader(sus.getClass());
    final String susString = ssWriter.writeValueAsString(sus);
    System.out.println(susString);
    final StorelessUnivariateStatistic newSus = ssReader.readValue(susString);
    assertEquals(expected, newSus.getResult(), 0.1);
}