Example usage for com.fasterxml.jackson.core JsonGenerator setPrettyPrinter

List of usage examples for com.fasterxml.jackson.core JsonGenerator setPrettyPrinter

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Introduction

In this page you can find the example usage for com.fasterxml.jackson.core JsonGenerator setPrettyPrinter.

Prototype

public JsonGenerator setPrettyPrinter(PrettyPrinter pp)

Source Link

Document

Method for setting a custom pretty printer, which is usually used to add indentation for improved human readability.

Usage

From source file:org.apache.infra.reviewboard.ReviewBoard.java

public static void main(String... args) throws IOException {

    URL url = new URL(REVIEW_BOARD_URL);
    HttpHost host = new HttpHost(url.getHost(), url.getPort(), url.getProtocol());

    Executor executor = Executor.newInstance().auth(host, REVIEW_BOARD_USERNAME, REVIEW_BOARD_PASSWORD)
            .authPreemptive(host);/*from ww  w.  ja va  2s  . c o m*/

    Request request = Request.Get(REVIEW_BOARD_URL + "/api/review-requests/");
    Response response = executor.execute(request);

    request = Request.Get(REVIEW_BOARD_URL + "/api/review-requests/");
    response = executor.execute(request);

    ObjectMapper mapper = new ObjectMapper();
    JsonNode json = mapper.readTree(response.returnResponse().getEntity().getContent());

    JsonFactory factory = new JsonFactory();
    JsonGenerator generator = factory.createGenerator(new PrintWriter(System.out));
    generator.setPrettyPrinter(new DefaultPrettyPrinter());
    mapper.writeTree(generator, json);
}

From source file:org.datagator.tools.importer.Main.java

public static void main(String[] args) throws IOException {

    int columnHeaders = 0; // cli input
    int rowHeaders = 0; // cli input

    try {/*from w w w . j  av a  2  s. c  om*/
        CommandLine cmds = parser.parse(opts, args);
        if (cmds.hasOption("filter")) {
            throw new UnsupportedOperationException("Not supported yet.");
        }
        if (cmds.hasOption("layout")) {
            String[] layout = cmds.getOptionValues("layout");
            if ((layout == null) || (layout.length != 2)) {
                throw new IllegalArgumentException("Bad layout.");
            }
            try {
                columnHeaders = Integer.valueOf(layout[0]);
                rowHeaders = Integer.valueOf(layout[1]);
                if ((columnHeaders < 0) || (rowHeaders < 0)) {
                    throw new IllegalArgumentException("Bad layout.");
                }
            } catch (NumberFormatException ex) {
                throw new IllegalArgumentException(ex);
            }
        }
        if (cmds.hasOption("help")) {
            help.printHelp("importer", opts, true);
            System.exit(EX_OK);
        }
        // positional arguments, i.e., input file name(s)
        args = cmds.getArgs();
    } catch (ParseException ex) {
        throw new IllegalArgumentException(ex);
    } catch (IllegalArgumentException ex) {
        help.printHelp("importer", opts, true);
        throw ex;
    }

    JsonGenerator jg = json.createGenerator(System.out, JsonEncoding.UTF8);
    jg.setPrettyPrinter(new StandardPrinter());

    final Extractor extractor;

    if (args.length == 1) {
        extractor = new FileExtractor(new File(args[0]));
    } else if (args.length > 1) {
        throw new UnsupportedOperationException("Not supported yet.");
    } else {
        throw new IllegalArgumentException("Missing input.");
    }

    int columnsCount = -1;
    int matrixCount = 0;

    ArrayDeque<String> stack = new ArrayDeque<String>();

    AtomType token = extractor.nextAtom();
    while (token != null) {
        switch (token) {
        case FLOAT:
        case INTEGER:
        case STRING:
        case NULL:
            jg.writeObject(extractor.getCurrentAtomData());
            break;
        case START_RECORD:
            jg.writeStartArray();
            break;
        case END_RECORD:
            int _numFields = (Integer) extractor.getCurrentAtomData();
            if (columnsCount < 0) {
                columnsCount = _numFields;
            } else if (columnsCount != _numFields) {
                throw new RuntimeException(String.format("row %s has different length than previous rows",
                        String.valueOf(_numFields - 1)));
            }
            jg.writeEndArray();
            break;
        case START_GROUP:
            stack.push(String.valueOf(extractor.getCurrentAtomData()));
            jg.writeStartObject();
            jg.writeStringField("kind", "datagator#Matrix");
            jg.writeNumberField("columnHeaders", columnHeaders);
            jg.writeNumberField("rowHeaders", rowHeaders);
            jg.writeFieldName("rows");
            jg.writeStartArray();
            break;
        case END_GROUP:
            int rowsCount = (Integer) extractor.getCurrentAtomData();
            if (rowsCount == 0) {
                jg.writeStartArray();
                jg.writeEndArray();
                rowsCount = 1;
                columnsCount = 0;
            }
            jg.writeEndArray();
            jg.writeNumberField("rowsCount", rowsCount);
            jg.writeNumberField("columnsCount", columnsCount);
            jg.writeEndObject();
            matrixCount += 1;
            stack.pop();
            break;
        default:
            break;
        }
        token = extractor.nextAtom();
    }

    jg.close();

    System.exit(EX_OK);
}

From source file:com.vmware.bdd.cli.commands.CommandsUtils.java

public static void prettyJsonOutput(Object object, String fileName) throws Exception {
    OutputStream out = null;/*from  ww w.  ja va 2 s.co m*/
    try {
        if (fileName != null) {
            out = new FileOutputStream(fileName);
        } else {
            out = System.out;
        }
        JsonFactory factory = new JsonFactory();
        JsonGenerator generator = factory.createJsonGenerator(out);
        ObjectMapper mapper = getMapper();
        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        generator.setCodec(mapper);
        DefaultPrettyPrinter prettyPrinter = new DefaultPrettyPrinter();
        DefaultPrettyPrinter.Indenter indenter = new DefaultPrettyPrinter.Lf2SpacesIndenter();
        prettyPrinter.indentArraysWith(indenter);
        generator.setPrettyPrinter(prettyPrinter);
        generator.writeObject(object);
        writeEndingMsgToScreen(fileName);
    } finally {
        if (out != null && !(out instanceof PrintStream)) {
            out.close();
        }
    }
}

From source file:javasnack.snacks.json.PojoEncodeJackson.java

@Override
public void run() {
    ObjectMapper objectMapper = new ObjectMapper();
    try {/*from   w  ww. j  a v  a  2s.c  o m*/
        String jsonout = objectMapper.writeValueAsString(new EncodePojo());
        System.out.println("--- simple jackson encode ---");
        System.out.println(jsonout);
        String jsonout2 = objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(new EncodePojo());
        System.out.println("--- default pretty-print jackson encode ---");
        System.out.println(jsonout2);
        System.out.println("--- streaming jackson encode ---");
        JsonFactory jsonFactory = objectMapper.getFactory();
        Writer out = new OutputStreamWriter(System.out);
        JsonGenerator jg = jsonFactory.createGenerator(out);
        jg.setPrettyPrinter(new DefaultPrettyPrinter());
        jg.writeStartObject();
        jg.writeStringField("message", "success");
        jg.writeNumberField("count", 10);
        jg.writeArrayFieldStart("records");
        for (int i = 0; i < 10; i++) {
            jg.writeObject(new EncodePojo());
            Thread.sleep(100);
            jg.flush();
        }
        jg.writeEndArray();
        jg.writeEndObject();
        jg.close();
    } catch (JsonProcessingException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.ibm.ws.lars.rest.ErrorHandler.java

@Override
protected void service(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    response.setStatus(500);//from w ww . j a v a2 s . co  m
    response.setContentType(MediaType.APPLICATION_JSON);
    PrintWriter printWriter = response.getWriter();
    JsonGenerator frontPageJsonGenerator = new JsonFactory().createGenerator(printWriter);
    frontPageJsonGenerator.setPrettyPrinter(new DefaultPrettyPrinter());

    frontPageJsonGenerator.writeStartObject();
    frontPageJsonGenerator.writeStringField("message",
            "Internal server error, please contact the server administrator");
    frontPageJsonGenerator.writeNumberField("statusCode", response.getStatus());
    frontPageJsonGenerator.writeEndObject();

    frontPageJsonGenerator.flush();
    frontPageJsonGenerator.close();
}

From source file:com.ibm.ws.lars.rest.FrontPage.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    resp.setContentType(MediaType.APPLICATION_JSON);
    resp.setCharacterEncoding(StandardCharsets.UTF_8.name());
    PrintWriter printWriter = resp.getWriter();

    List<AssetFilter> filters = new ArrayList<>();
    filters.add(new AssetFilter("state",
            Arrays.asList(new Condition[] { new Condition(Operation.EQUALS, "published") })));
    int assetCount = serviceLayer.countAllAssets(filters, null);

    JsonGenerator frontPageJsonGenerator = new JsonFactory().createGenerator(printWriter);
    frontPageJsonGenerator.setPrettyPrinter(new DefaultPrettyPrinter());

    frontPageJsonGenerator.writeStartObject();
    frontPageJsonGenerator.writeStringField("serverName", "LARS");
    frontPageJsonGenerator.writeNumberField("assetCount", assetCount);
    frontPageJsonGenerator.writeEndObject();

    frontPageJsonGenerator.flush();//from   w w w .jav a2s  . c om
    frontPageJsonGenerator.close();
}

From source file:org.dswarm.xsd2jsonschema.model.JSRoot.java

public String render() throws IOException {
    final JsonFactory jsonFactory = new JsonFactory();
    final StringWriter writer = new StringWriter();

    final JsonGenerator generator = jsonFactory.createGenerator(writer);
    generator.setPrettyPrinter(new DefaultPrettyPrinter());

    render(generator);//from w ww. ja v a  2s.c  o m

    return writer.getBuffer().toString();
}

From source file:com.chenchengzhi.windtalkers.server.WindMessageFactory.java

protected HttpResponse throwError(Issue issue) throws IOException {
    HttpResponse errorResponse = new DefaultHttpResponse(HttpVersion.HTTP_1_1,
            HttpResponseStatus.valueOf(issue.getStatusCode().getCode()));

    ObjectNode errorNode = issue.translate();
    StringWriter writer = new StringWriter();
    JsonGenerator generator = jsonFactory.createJsonGenerator(writer);
    generator.setPrettyPrinter(new DefaultPrettyPrinter());
    errorNode.serialize(generator, new DefaultSerializerProvider.Impl());
    generator.flush();//w  ww  . jav  a 2 s  .c  o  m

    errorResponse.setContent(ChannelBuffers.copiedBuffer(writer.getBuffer(), Charsets.UTF_8));
    errorResponse.setHeader(HttpHeaders.Names.CONTENT_TYPE, "application/json");
    errorResponse.setHeader(HttpHeaders.Names.CONTENT_LENGTH, errorResponse.getContent().readableBytes());
    return errorResponse;
}

From source file:com.chenchengzhi.windtalkers.server.WindMessageFactory.java

@Override
public HttpResponse serialize(Message message) throws IOException {
    Issue issue = message.get(Issue.class);

    if (issue != null) {
        return throwError(issue);
    }/*from  w ww. j  a  v  a2 s. c om*/

    HttpResponse httpResponse = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
    ObjectNode response = message.getResponseBody();

    if (response != null) {
        httpResponse.setHeader(HttpHeaders.Names.CONTENT_TYPE, "application/json");
        StringWriter writer = new StringWriter();
        JsonGenerator generator = jsonFactory.createJsonGenerator(writer);
        generator.setPrettyPrinter(new DefaultPrettyPrinter());

        response.serialize(generator, new DefaultSerializerProvider.Impl());
        generator.flush();
        httpResponse.setContent(ChannelBuffers.copiedBuffer(writer.getBuffer(), Charsets.UTF_8));
    }

    httpResponse.setHeader(HttpHeaders.Names.CONTENT_LENGTH, httpResponse.getContent().readableBytes());
    return httpResponse;
}

From source file:com.effektif.workflow.impl.json.JsonStreamMapper.java

public <T> void write(T bean, Writer writer) {
    try {/*ww w. ja v  a 2s  .  c o  m*/
        JsonGenerator jgen = new JsonFactory().createGenerator(writer);
        if (pretty) {
            jgen.setPrettyPrinter(new DefaultPrettyPrinter());
        }
        JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(mappings, jgen);
        jsonStreamWriter.writeObject(bean);
        jgen.flush();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}