List of usage examples for com.fasterxml.jackson.core JsonGenerator writeStartArray
public abstract void writeStartArray() throws IOException, JsonGenerationException;
From source file:org.apache.olingo.client.core.serialization.JsonSerializer.java
private void collection(final JsonGenerator jgen, final EdmTypeInfo typeInfo, final ValueType valueType, final List<?> value) throws IOException, EdmPrimitiveTypeException { jgen.writeStartArray(); for (Object item : value) { final EdmTypeInfo itemTypeInfo = typeInfo == null ? null : new EdmTypeInfo.Builder().setTypeExpression(typeInfo.getFullQualifiedName().toString()) .build();//w ww . j a va2 s. c om switch (valueType) { case COLLECTION_PRIMITIVE: primitiveValue(jgen, itemTypeInfo, item); break; case COLLECTION_GEOSPATIAL: jgen.writeStartObject(); geoSerializer.serialize(jgen, (Geospatial) item); jgen.writeEndObject(); break; case COLLECTION_ENUM: jgen.writeString(item.toString()); break; case COLLECTION_COMPLEX: final ComplexValue complexItem2 = (ComplexValue) item; complexValue(jgen, itemTypeInfo, complexItem2.getValue(), complexItem2); break; default: } } jgen.writeEndArray(); }
From source file:com.streamsets.datacollector.bundles.content.SdcInfoContentGenerator.java
private void writeObject(JsonGenerator jg, Object value) throws IOException { if (value == null) { jg.writeNull();//from w w w . j a va 2 s.c o m } else { Class<?> c = value.getClass(); if (c.isArray()) { jg.writeStartArray(); int len = Array.getLength(value); for (int j = 0; j < len; j++) { Object item = Array.get(value, j); writeObject(jg, item); } jg.writeEndArray(); } else if (value instanceof Number) { Number n = (Number) value; if (value instanceof Double && (((Double) value).isInfinite() || ((Double) value).isNaN())) { jg.writeString(n.toString()); } else { jg.writeNumber(n.toString()); } } else if (value instanceof Boolean) { Boolean b = (Boolean) value; jg.writeBoolean(b); } else if (value instanceof CompositeData) { CompositeData cds = (CompositeData) value; CompositeType comp = cds.getCompositeType(); Set<String> keys = comp.keySet(); jg.writeStartObject(); for (String key : keys) { writeAttribute(jg, key, cds.get(key)); } jg.writeEndObject(); } else if (value instanceof TabularData) { TabularData tds = (TabularData) value; jg.writeStartArray(); for (Object entry : tds.values()) { writeObject(jg, entry); } jg.writeEndArray(); } else if (value instanceof GaugeValue) { ((GaugeValue) value).serialize(jg); } else { jg.writeString(value.toString()); } } }
From source file:org.sfs.nodes.compute.container.GetContainer.java
@Override public void handle(final SfsRequest httpServerRequest) { VertxContext<Server> vertxContext = httpServerRequest.vertxContext(); aVoid().flatMap(new Authenticate(httpServerRequest)) .flatMap(new ValidateActionAuthenticated(httpServerRequest)) .map(aVoid -> fromSfsRequest(httpServerRequest)).map(new ValidateContainerPath()) .flatMap(new LoadAccountAndContainer(vertxContext)) .flatMap(new ValidateActionContainerListObjects(httpServerRequest)).flatMap(persistentContainer -> { HttpServerResponse httpServerResponse = httpServerRequest.response(); MultiMap queryParams = httpServerRequest.params(); MultiMap headerParams = httpServerRequest.headers(); String format = queryParams.get(FORMAT); String accept = headerParams.get(ACCEPT); MediaType parsedAccept = null; if (equalsIgnoreCase("xml", format)) { parsedAccept = APPLICATION_XML_UTF_8; } else if (equalsIgnoreCase("json", format)) { parsedAccept = JSON_UTF_8; }//from ww w . j a v a 2 s. com if (parsedAccept == null) { if (!isNullOrEmpty(accept)) { parsedAccept = parse(accept); } } if (parsedAccept == null || (!PLAIN_TEXT_UTF_8.is(parsedAccept) && !APPLICATION_XML_UTF_8.is(parsedAccept) && !JSON_UTF_8.equals(parsedAccept))) { parsedAccept = PLAIN_TEXT_UTF_8; } Observable<Optional<ContainerStats>> oContainerStats; boolean hasPrefix = !Strings.isNullOrEmpty(queryParams.get(SfsHttpQueryParams.PREFIX)); if (hasPrefix) { oContainerStats = just(persistentContainer) .flatMap(new LoadContainerStats(httpServerRequest.vertxContext())) .map(Optional::of); } else { oContainerStats = Defer.just(Optional.<ContainerStats>absent()); } Observable<ObjectList> oObjectListing = just(persistentContainer) .flatMap(new ListObjects(httpServerRequest)); MediaType finalParsedAccept = parsedAccept; return combineSinglesDelayError(oContainerStats, oObjectListing, (containerStats, objectList) -> { if (containerStats.isPresent()) { Metadata metadata = persistentContainer.getMetadata(); for (String key : metadata.keySet()) { SortedSet<String> values = metadata.get(key); if (values != null && !values.isEmpty()) { httpServerResponse.putHeader( format("%s%s", X_ADD_CONTAINER_META_PREFIX, key), values); } } httpServerResponse.putHeader(X_CONTAINER_OBJECT_COUNT, valueOf(containerStats.get().getObjectCount())); httpServerResponse.putHeader(X_CONTAINER_BYTES_USED, BigDecimal.valueOf(containerStats.get().getBytesUsed()) .setScale(0, ROUND_HALF_UP).toString()); } BufferOutputStream bufferOutputStream = new BufferOutputStream(); if (JSON_UTF_8.is(finalParsedAccept)) { try { JsonFactory jsonFactory = vertxContext.verticle().jsonFactory(); JsonGenerator jg = jsonFactory.createGenerator(bufferOutputStream, UTF8); jg.writeStartArray(); for (ListedObject listedObject : ordered(objectList.getObjects())) { jg.writeStartObject(); jg.writeStringField("hash", base16().lowerCase().encode(listedObject.getEtag())); jg.writeStringField("last_modified", toDateTimeString(listedObject.getLastModified())); jg.writeNumberField("bytes", listedObject.getLength()); jg.writeStringField("content_type", listedObject.getContentType()); jg.writeStringField("name", listedObject.getName()); jg.writeEndObject(); } jg.writeEndArray(); jg.close(); } catch (IOException e) { throw new RuntimeException(e); } } else if (APPLICATION_XML_UTF_8.is(finalParsedAccept)) { String charset = UTF_8.toString(); XMLStreamWriter writer = null; try { writer = newFactory().createXMLStreamWriter(bufferOutputStream, charset); writer.writeStartDocument(charset, "1.0"); writer.writeStartElement("container"); writer.writeAttribute("name", fromPaths(persistentContainer.getId()).containerName().get()); for (ListedObject listedObject : ordered(objectList.getObjects())) { writer.writeStartElement("object"); writer.writeStartElement("name"); writer.writeCharacters(listedObject.getName()); writer.writeEndElement(); writer.writeStartElement("hash"); writer.writeCharacters( base16().lowerCase().encode(listedObject.getEtag())); writer.writeEndElement(); writer.writeStartElement("bytes"); writer.writeCharacters(valueOf(listedObject.getLength())); writer.writeEndElement(); writer.writeStartElement("content_type"); writer.writeCharacters(listedObject.getContentType()); writer.writeEndElement(); writer.writeStartElement("last_modified"); writer.writeCharacters( toDateTimeString(listedObject.getLastModified())); writer.writeEndElement(); writer.writeEndElement(); } writer.writeEndElement(); writer.writeEndDocument(); } catch (XMLStreamException e) { throw new RuntimeException(e); } finally { try { if (writer != null) { writer.close(); } } catch (XMLStreamException e) { LOGGER.warn(e.getLocalizedMessage(), e); } } } else { String charset = UTF_8.toString(); try (OutputStreamWriter outputStreamWriter = new OutputStreamWriter( bufferOutputStream, charset)) { for (ListedObject listedObject : ordered(objectList.getObjects())) { outputStreamWriter.write(listedObject.getName()); outputStreamWriter.write("\n"); } } catch (IOException e) { throw new RuntimeException(e); } } objectList.clear(); return bufferOutputStream; }).flatMap(bufferOutputStream -> { Buffer buffer = bufferOutputStream.toBuffer(); httpServerResponse.putHeader(HttpHeaders.CONTENT_TYPE, finalParsedAccept.toString()) .putHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(buffer.length())); return AsyncIO.append(buffer, httpServerRequest.response()); }); }).single().subscribe(new ConnectionCloseTerminus<Void>(httpServerRequest) { @Override public void onNext(Void aVoid) { } } ); }
From source file:com.streamsets.datacollector.http.JMXJsonServlet.java
private void writeObject(JsonGenerator jg, Object value) throws IOException { if (value == null) { jg.writeNull();/*from w ww . j av a 2 s.c o m*/ } else { Class<?> c = value.getClass(); if (c.isArray()) { jg.writeStartArray(); int len = Array.getLength(value); for (int j = 0; j < len; j++) { Object item = Array.get(value, j); writeObject(jg, item); } jg.writeEndArray(); } else if (value instanceof Number) { Number n = (Number) value; jg.writeNumber(n.toString()); } else if (value instanceof Boolean) { Boolean b = (Boolean) value; jg.writeBoolean(b); } else if (value instanceof CompositeData) { CompositeData cds = (CompositeData) value; CompositeType comp = cds.getCompositeType(); Set<String> keys = comp.keySet(); jg.writeStartObject(); for (String key : keys) { writeAttribute(jg, key, cds.get(key)); } jg.writeEndObject(); } else if (value instanceof TabularData) { TabularData tds = (TabularData) value; jg.writeStartArray(); for (Object entry : tds.values()) { writeObject(jg, entry); } jg.writeEndArray(); } else if (value instanceof GaugeValue) { ((GaugeValue) value).serialize(jg); } else { jg.writeString(value.toString()); } } }
From source file:org.seedstack.seed.core.internal.data.DataManagerImpl.java
private void dumpAll(List<DataSetMarker<Object>> dataSetMarker, OutputStream outputStream) { try {/* w w w . ja v a 2 s . c o m*/ JsonGenerator jsonGenerator = this.jsonFactory .createGenerator(new OutputStreamWriter(outputStream, Charset.forName(UTF_8))); ObjectWriter objectWriter = objectMapper.writer(); jsonGenerator.writeStartArray(); for (DataSetMarker<Object> objectDataSetMarker : dataSetMarker) { // start jsonGenerator.writeStartObject(); // metadata jsonGenerator.writeStringField(GROUP, objectDataSetMarker.getGroup()); jsonGenerator.writeStringField(NAME, objectDataSetMarker.getName()); // items jsonGenerator.writeArrayFieldStart(ITEMS); while (objectDataSetMarker.getItems().hasNext()) { objectWriter.writeValue(jsonGenerator, objectDataSetMarker.getItems().next()); } jsonGenerator.writeEndArray(); // end jsonGenerator.writeEndObject(); } jsonGenerator.writeEndArray(); jsonGenerator.flush(); } catch (Exception e) { throw SeedException.wrap(e, DataErrorCode.EXPORT_FAILED); } }
From source file:io.swagger.inflector.processors.JsonNodeExampleSerializer.java
@Override public void serialize(Example value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException { if (value instanceof ObjectExample) { ObjectExample obj = (ObjectExample) value; jgen.writeStartObject();/* ww w. ja v a2s . c o m*/ writeTo(jgen, obj); jgen.writeEndObject(); } else if (value instanceof ArrayExample) { ArrayExample obj = (ArrayExample) value; jgen.writeStartArray(); for (Example item : obj.getItems()) { if (item instanceof ObjectExample) { jgen.writeStartObject(); } writeTo(jgen, item); if (item instanceof ObjectExample) { jgen.writeEndObject(); } } jgen.writeEndArray(); } else { writeTo(jgen, value); } }
From source file:TDS.Shared.Messages.MessageJson.java
public String create() throws ReturnStatusException { StringWriter sw = new StringWriter(); JsonFactory jsonFactory = new JsonFactory(); JsonGenerator jsonWriter; try {//from w ww. java2 s . com if (_messageSystem == null) return "{}"; jsonWriter = jsonFactory.createGenerator(sw); jsonWriter.writeStartObject(); jsonWriter.writeStringField("c_l", _language); // "c_l": _language jsonWriter.writeFieldName("c_a"); // "c_a" : jsonWriter.writeStartArray(); // [ // get all the message contexts across all the context types List<MessageContext> messageContexts = new ArrayList<MessageContext>(); for (MessageContextType contextType : _messageSystem.getContextTypes()) { messageContexts.addAll(contextType.getContexts()); } for (MessageContext messageContext : messageContexts) { writeContextElement(messageContext, jsonWriter); } jsonWriter.writeEndArray(); // ] jsonWriter.writeEndObject(); // } jsonWriter.close(); sw.close(); } catch (IOException e) { ReturnStatus rs = new ReturnStatus("failed", "Serialization failed: " + e.getMessage()); throw new ReturnStatusException(rs); } return sw.getBuffer().toString(); }
From source file:models.ProcessSerializer.java
@Override public void serialize(Process process, JsonGenerator jgen, SerializerProvider provider) throws IOException { jgen.writeStartObject();//w ww .java 2 s.co m jgen.writeStringField("id", process.getId()); jgen.writeFieldName("unit"); jgen.writeObject(process.getUnit()); jgen.writeFieldName("keywords"); jgen.writeObject(process.getKeywords()); jgen.writeFieldName("groups"); jgen.writeStartArray(); for (Group group : process.getGroups()) { jgen.writeStartObject(); jgen.writeStringField("id", group.getId()); jgen.writeStringField("label", group.getLabel()); jgen.writeEndObject(); } jgen.writeEndArray(); jgen.writeFieldName("relations"); jgen.writeStartArray(); for (DerivedRelation relation : process.getUpstreamDerivedRelations()) { jgen.writeObject(relation); } for (DerivedRelation relation : process.getDownstreamDerivedRelations()) { jgen.writeObject(relation); } jgen.writeEndArray(); jgen.writeFieldName("impacts"); jgen.writeStartObject(); for (Impact impact : process.getImpacts().values()) { jgen.writeFieldName(impact.getType().getId()); jgen.writeStartObject(); jgen.writeFieldName("value"); jgen.writeObject(impact.getValue()); jgen.writeFieldName("upstream"); jgen.writeObject(getUpstreamImpacts(process, impact)); jgen.writeFieldName("composition"); jgen.writeObject(getImpactComposition(process, impact)); jgen.writeEndObject(); } jgen.writeEndObject(); jgen.writeFieldName("flows"); jgen.writeStartObject(); for (ElementaryFlow flow : process.getCalculatedFlows().values()) { jgen.writeFieldName(flow.getType().getId()); jgen.writeStartObject(); jgen.writeFieldName("value"); jgen.writeObject(flow.getValue()); jgen.writeFieldName("upstream"); jgen.writeObject(getUpstreamFlows(process, flow)); jgen.writeEndObject(); } jgen.writeEndObject(); jgen.writeEndObject(); }
From source file:org.talend.dataprep.schema.xls.serialization.XlsxStreamRunnable.java
/** * @see Runnable#run()/*w w w . jav a2 s . c om*/ */ @Override public void run() { try { JsonGenerator generator = jsonFactory.createGenerator(jsonOutput); Workbook workbook = StreamingReader.builder() // .bufferSize(4096) // .rowCacheSize(1) // .open(rawContent); try { Sheet sheet = StringUtils.isEmpty(metadata.getSheetName()) ? // workbook.getSheetAt(0) : workbook.getSheet(metadata.getSheetName()); generator.writeStartArray(); for (Row row : sheet) { if (limit > 0 && row.getRowNum() > limit) { break; } if (!XlsSerializer.isHeaderLine(row.getRowNum(), metadata.getRowMetadata().getColumns())) { generator.writeStartObject(); // data quality Analyzer doesn't like to not have all columns even if we don't have any values // so create so field with empty value otherwise we get exceptions int i = 0; for (ColumnMetadata columnMetadata : metadata.getRowMetadata().getColumns()) { Cell cell = row.getCell(i); String cellValue = cell == null ? null : cell.getStringCellValue(); // StringUtils.EMPTY generator.writeFieldName(columnMetadata.getId()); if (cellValue != null) { generator.writeString(cellValue); } else { generator.writeNull(); } i++; } generator.writeEndObject(); } } generator.writeEndArray(); generator.flush(); } finally { workbook.close(); } } catch (Exception e) { // Consumer may very well interrupt consumption of stream (in case of limit(n) use for sampling). // This is not an issue as consumer is allowed to partially consumes results, it's up to the // consumer to ensure data it consumed is consistent. LOG.debug("Unable to continue serialization for {}. Skipping remaining content.", metadata.getId(), e); } finally { try { jsonOutput.close(); } catch (IOException e) { LOG.error("Unable to close output", e); } } }
From source file:org.h2gis.drivers.geojson.GeoJsonWriteDriver.java
/** * Coordinates of a Polygon are an array of LinearRing coordinate arrays. * The first element in the array represents the exterior ring. Any * subsequent elements represent interior rings (or holes). * * No holes://from w w w .j a v a2 s . co m * * { "type": "Polygon", "coordinates": [ [ [100.0, 0.0], [101.0, 0.0], * [101.0, 1.0], [100.0, 1.0], [100.0, 0.0] ] ] } * * With holes: * * { "type": "Polygon", "coordinates": [ [ [100.0, 0.0], [101.0, 0.0], * [101.0, 1.0], [100.0, 1.0], [100.0, 0.0] ], [ [100.2, 0.2], [100.8, 0.2], * [100.8, 0.8], [100.2, 0.8], [100.2, 0.2] ] ] } * * @param geom * @param gen * @throws IOException */ private void write(Polygon geom, JsonGenerator gen) throws IOException { gen.writeStringField("type", "Polygon"); gen.writeFieldName("coordinates"); gen.writeStartArray(); writeCoordinates(geom.getExteriorRing().getCoordinates(), gen); for (int i = 0; i < geom.getNumInteriorRing(); ++i) { writeCoordinates(geom.getInteriorRingN(i).getCoordinates(), gen); } gen.writeEndArray(); }