List of usage examples for com.fasterxml.jackson.core JsonFactory createGenerator
public JsonGenerator createGenerator(File f, JsonEncoding enc) throws IOException
From source file:com.cedarsoft.serialization.jackson.AbstractJacksonSerializer.java
@Override public void serialize(@Nonnull T object, @WillNotClose @Nonnull OutputStream out) throws IOException { JsonFactory jsonFactory = JacksonSupport.getJsonFactory(); JsonGenerator generator = jsonFactory.createGenerator(out, JsonEncoding.UTF8); serialize(object, generator);/* w w w. j ava 2 s . c om*/ generator.flush(); }
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 av a2s . c om 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:org.h2gis.drivers.geojson.GeoJsonWriteDriver.java
/** * Write the spatial table to GeoJSON format. * * @param progress/*from w w w . j ava 2s .co m*/ * @throws SQLException */ private void writeGeoJson(ProgressVisitor progress) throws SQLException, IOException { FileOutputStream fos = null; try { fos = new FileOutputStream(fileName); // Read Geometry Index and type final TableLocation parse = TableLocation.parse(tableName, JDBCUtilities.isH2DataBase(connection.getMetaData())); List<String> spatialFieldNames = SFSUtilities.getGeometryFields(connection, parse); if (spatialFieldNames.isEmpty()) { throw new SQLException(String.format("The table %s does not contain a geometry field", tableName)); } // Read table content Statement st = connection.createStatement(); try { JsonFactory jsonFactory = new JsonFactory(); JsonGenerator jsonGenerator = jsonFactory.createGenerator(new BufferedOutputStream(fos), JsonEncoding.UTF8); // header of the GeoJSON file jsonGenerator.writeStartObject(); jsonGenerator.writeStringField("type", "FeatureCollection"); writeCRS(jsonGenerator, SFSUtilities.getAuthorityAndSRID(connection, parse, spatialFieldNames.get(0))); jsonGenerator.writeArrayFieldStart("features"); ResultSet rs = st.executeQuery(String.format("select * from `%s`", tableName)); try { ResultSetMetaData resultSetMetaData = rs.getMetaData(); int geoFieldIndex = JDBCUtilities.getFieldIndex(resultSetMetaData, spatialFieldNames.get(0)); cacheMetadata(resultSetMetaData); while (rs.next()) { writeFeature(jsonGenerator, rs, geoFieldIndex); } progress.endStep(); // footer jsonGenerator.writeEndArray(); jsonGenerator.writeEndObject(); jsonGenerator.flush(); jsonGenerator.close(); } finally { rs.close(); } } finally { st.close(); } } catch (FileNotFoundException ex) { throw new SQLException(ex); } finally { try { if (fos != null) { fos.close(); } } catch (IOException ex) { throw new SQLException(ex); } } }
From source file:ru.histone.HistoneOptimizeAstMojo.java
public void execute() throws MojoExecutionException { try {// ww w. j a v a 2s. c om getLog().info(MessageFormat.format("Running DirectoryScanner with params: baseDir={0}, includes=[{1}]", baseDir, StringUtils.join(includes, ", "))); DirectoryScanner scanner = new DirectoryScanner(); scanner.setBasedir(baseDir); scanner.setIncludes(includes); scanner.scan(); List<OptimizationTypes> optimizationTypeses = new ArrayList<OptimizationTypes>(); for (String optimizationType : optimizationTypes) { optimizationTypeses.add(OptimizationTypes.valueOf(optimizationType)); } OptimizationTypes[] array = optimizationTypeses .toArray(new OptimizationTypes[optimizationTypeses.size()]); getLog().info(MessageFormat.format("Optimizations to be run: [{0}]", "" + StringUtils.join(optimizationTypes, ", "))); String[] includedFiles = scanner.getIncludedFiles(); getLog().info(MessageFormat.format("Files found:\n{0}", StringUtils.join(includedFiles, "\n"))); HistoneBuilder builder = new HistoneBuilder(); Histone histone = builder.build(); ObjectMapper jackson = new ObjectMapper(); JsonFactory jsonFactory = new JsonFactory(); for (String includedFile : includedFiles) { ArrayNode ast = histone.parseTemplateToAST(new FileReader(new File(baseDir, includedFile))); ObjectNode context = builder.getNodeFactory().jsonObject(); int astCount1 = ASTTreeElementsCounter.count(ast); ArrayNode optimizedAst = histone.optimizeAST(ast, context, array); int astCount2 = ASTTreeElementsCounter.count(ast); getLog().info(MessageFormat.format("Processing {0}, before: {1}, after: {2}", includedFile, astCount1, astCount2)); JsonGenerator jsonGenerator = jsonFactory.createGenerator(new File(baseDir, includedFile + ".ast"), JsonEncoding.UTF8); jackson.writeTree(jsonGenerator, optimizedAst); } } catch (Exception e) { throw new MojoExecutionException("Error parsing templates to AST", e); } }
From source file:org.ojai.json.impl.JsonDocumentBuilder.java
private void initJsonGenerator(OutputStream out) { try {/*from w ww . j av a2s .c o m*/ JsonFactory jFactory = new JsonFactory(); jsonGenerator = jFactory.createGenerator(out, JsonEncoding.UTF8); ctxStack = new Stack<ContainerContext>(); currentContext = ContainerContext.NULL; checkContext = true; setJsonOptions(JsonOptions.WITH_TAGS); } catch (IOException ie) { throw transformIOException(ie); } }
From source file:com.bazaarvoice.jsonpps.PrettyPrintJson.java
public void prettyPrint(List<File> inputFiles, File outputFile) throws IOException { JsonFactory factory = new JsonFactory(); factory.disable(JsonFactory.Feature.INTERN_FIELD_NAMES); if (!strict) { factory.enable(JsonParser.Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER); factory.enable(JsonParser.Feature.ALLOW_COMMENTS); factory.enable(JsonParser.Feature.ALLOW_NON_NUMERIC_NUMBERS); factory.enable(JsonParser.Feature.ALLOW_NUMERIC_LEADING_ZEROS); factory.enable(JsonParser.Feature.ALLOW_SINGLE_QUOTES); factory.enable(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS); factory.enable(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES); }//from w w w . j a v a 2 s .c om ObjectMapper mapper = null; if (sortKeys) { mapper = new ObjectMapper(factory); mapper.enable(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS); mapper.disable(SerializationFeature.FLUSH_AFTER_WRITE_VALUE); } // Open the output stream and create the Json emitter. JsonGenerator generator; File tempOutputFile = null; if (STDINOUT.equals(outputFile)) { generator = factory.createGenerator(stdout, JsonEncoding.UTF8); } else if (!caseInsensitiveContains(inputFiles, outputFile)) { generator = factory.createGenerator(outputFile, JsonEncoding.UTF8); } else { // Writing to an input file.. use a temp file to stage the output until we're done. tempOutputFile = getTemporaryFileFor(outputFile); generator = factory.createGenerator(tempOutputFile, JsonEncoding.UTF8); } try { // Separate top-level objects by a newline in the output. String newline = System.getProperty("line.separator"); generator.setPrettyPrinter(new DefaultPrettyPrinter(newline)); if (wrap) { generator.writeStartArray(); } for (File inputFile : inputFiles) { JsonParser parser; if (STDINOUT.equals(inputFile)) { parser = factory.createParser(stdin); } else { parser = factory.createParser(inputFile); } try { while (parser.nextToken() != null) { copyCurrentStructure(parser, mapper, 0, generator); } } finally { parser.close(); } } if (wrap) { generator.writeEndArray(); } generator.writeRaw(newline); } finally { generator.close(); } if (tempOutputFile != null && !tempOutputFile.renameTo(outputFile)) { System.err.println("error: unable to rename temporary file to output: " + outputFile); System.exit(1); } }