Package com.fasterxml.jackson.core

Examples of com.fasterxml.jackson.core.JsonGenerator

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    {
        // regular factory can't do it, without a call to setCodec()
        JsonFactory jf = new JsonFactory();
        try {
            StringWriter sw = new StringWriter();
            JsonGenerator gen = jf.createGenerator(sw);
            gen.writeObject(new Pojo());
            gen.close();
            fail("Expected an exception: got sw '"+sw.toString()+"'");
        } catch (IllegalStateException e) {
            verifyException(e, "No ObjectCodec defined");
        }
    }
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        final ObjectWriter indentWriter = MAPPER.writer().with(SerializationFeature.INDENT_OUTPUT);
        assertEquals(INDENTED, indentWriter.writeValueAsString(input));

        // [Issue#12]
        StringWriter sw = new StringWriter();
        JsonGenerator jgen = MAPPER.getFactory().createGenerator(sw);
        indentWriter.writeValue(jgen, input);
        jgen.close();
        assertEquals(INDENTED, sw.toString());

        // and also with ObjectMapper itself
        sw = new StringWriter();
        ObjectMapper m2 = new ObjectMapper();
        m2.enable(SerializationFeature.INDENT_OUTPUT);
        jgen = m2.getFactory().createGenerator(sw);
        m2.writeValue(jgen, input);
        jgen.close();
        assertEquals(INDENTED, sw.toString());
    }
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    public static final JsonFactory JSON_FACTORY = new JsonFactory();

    public static String domToJson(Node in) throws IOException {
        final StringWriter sw = new StringWriter(512);
        final JsonGenerator gen = JSON_FACTORY.createGenerator(sw);
        gen.useDefaultPrettyPrinter();
        gen.writeStartObject();
        domToJson(in, gen);
        gen.writeEndObject();
        gen.flush();
        sw.flush();
        return sw.toString();
    }
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   */
  void writeFormattedException(final String message,
                               final Level level,
                               final Writer out)
      throws IOException {
    JsonGenerator generator = new JsonFactory().createJsonGenerator(out);

    String backtrace = GecLogbackAppender.getStackTrace(new Throwable());
    String[] lines = backtrace.split("\n");
    StringBuilder builder = new StringBuilder();
    for (String line : lines) {
      if (!line.contains("com.greplin.gec.GecLogbackAppender.")) {
        builder.append(line);
        builder.append("\n");
      }
    }
    backtrace = builder.toString();

    generator.writeStartObject();
    generator.writeStringField("project", this.project);
    generator.writeStringField("environment", this.environment);
    generator.writeStringField("serverName", this.serverName);
    generator.writeStringField("backtrace", backtrace);
    generator.writeStringField("message", message);
    generator.writeStringField("logMessage", message);
    generator.writeStringField("type", "N/A");
    if (level != Level.ERROR) {
      generator.writeStringField("errorLevel", level.toString());
    }
    writeContext(generator);
    generator.writeEndObject();
    generator.close();
  }
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   */
  void writeFormattedException(final String message,
                               final Level level,
                               final Writer out)
      throws IOException {
    JsonGenerator generator = new JsonFactory().createJsonGenerator(out);

    String backtrace = ExceptionUtils.getFullStackTrace(new Exception());
    String[] lines = backtrace.split("\n");
    StringBuilder builder = new StringBuilder();
    for (String line : lines) {
      if (!line.contains("com.greplin.gec.GecLog4jAppender.")) {
        builder.append(line);
        builder.append("\n");
      }
    }
    backtrace = builder.toString();

    generator.writeStartObject();
    generator.writeStringField("project", this.project);
    generator.writeStringField("environment", this.environment);
    generator.writeStringField("serverName", this.serverName);
    generator.writeStringField("backtrace", backtrace);
    generator.writeStringField("message", message);
    generator.writeStringField("logMessage", message);
    generator.writeStringField("type", "N/A");
    if (level != Level.ERROR) {
      generator.writeStringField("errorLevel", level.toString());
    }
    writeContext(generator);
    generator.writeEndObject();
    generator.close();
  }
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  private void writeFormattedException(final String message,
                                       final IThrowableProxy throwableProxy,
                                       final Level level,
                                       final Writer out)
      throws IOException {
    JsonGenerator generator = new JsonFactory().createJsonGenerator(out);

    IThrowableProxy rootThrowable = throwableProxy;
    while (this.passthroughExceptions.contains(rootThrowable.getClassName())
        && rootThrowable.getCause() != null) {
      rootThrowable = rootThrowable.getCause();
    }

    generator.writeStartObject();
    generator.writeStringField("project", this.project);
    generator.writeStringField("environment", this.environment);
    generator.writeStringField("serverName", this.serverName);
    // FIXME this was 'throwable'
    generator.writeStringField("backtrace", getStackTrace(rootThrowable));
    generator.writeStringField("message", rootThrowable.getMessage());
    generator.writeStringField("logMessage", message);
    generator.writeStringField("type", rootThrowable.getClassName());
    if (level != Level.ERROR) {
      generator.writeStringField("errorLevel", level.toString());
    }
    writeContext(generator);
    generator.writeEndObject();
    generator.close();
  }
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  void writeFormattedException(final String message,
                               final Throwable throwable,
                               final Level level,
                               final Writer out)
      throws IOException {
    JsonGenerator generator = new JsonFactory().createJsonGenerator(out);

    Throwable rootThrowable = throwable;
    while (this.passthroughExceptions.contains(rootThrowable.getClass())
        && rootThrowable.getCause() != null) {
      rootThrowable = rootThrowable.getCause();
    }

    generator.writeStartObject();
    generator.writeStringField("project", this.project);
    generator.writeStringField("environment", this.environment);
    generator.writeStringField("serverName", this.serverName);
    generator.writeStringField("backtrace",
        ExceptionUtils.getStackTrace(throwable));
    generator.writeStringField("message", rootThrowable.getMessage());
    generator.writeStringField("logMessage", message);
    generator.writeStringField("type", rootThrowable.getClass().getName());
    if (level != Level.ERROR) {
      generator.writeStringField("errorLevel", level.toString());
    }
    writeContext(generator);
    generator.writeEndObject();
    generator.close();
  }
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        // TODO configure a minimum size for the writer
        StringWriter stringWriter = new StringWriter();

        try
        {
            JsonGenerator g = this.jsonFactory.createJsonGenerator( stringWriter );

            g.writeStartObject();

            g.writeStringField( DirectMemoryConstants.KEY_FIELD_NAME, request.getKey() );

            g.writeBooleanField( DirectMemoryConstants.PUT_FIELD_NAME, request.isUpdate() );

            g.writeNumberField( DirectMemoryConstants.EXPIRES_IN_FIELD_NAME, request.getExpiresIn() );

            // FIXME take care of NPE
            // cache content generation
            Serializer serializer = request.getSerializer();
            // if no Object users are able to pass a string content
            byte[] bytes = request.getObject() != null
                ? request.getSerializer().serialize( request.getObject() )
                : request.getCacheContent();

            g.writeFieldName( DirectMemoryConstants.CACHE_CONTENT_FIELD_NAME );
            g.writeBinary( bytes );

            if ( serializer != null )
            {
                g.writeStringField( DirectMemoryConstants.SERIALIZER_FIELD_NAME, serializer.getClass().getName() );
            }

            g.writeEndObject();
            g.close();
        }
        catch ( IOException e )
        {
            throw new DirectMemoryException( e.getMessage(), e );
        }
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        StringWriter stringWriter = new StringWriter();

        try
        {

            JsonGenerator g = this.jsonFactory.createJsonGenerator( stringWriter );

            g.writeStartObject();

            g.writeBooleanField( DirectMemoryConstants.FOUND_FIELD_NAME, response.isFound() );

            g.writeStringField( DirectMemoryConstants.KEY_FIELD_NAME, response.getKey() );

            if ( response.getCacheContent() != null && response.getCacheContent().length > 0 )
            {
                g.writeFieldName( DirectMemoryConstants.CACHE_CONTENT_FIELD_NAME );
                g.writeBinary( response.getCacheContent() );
            }

            g.writeEndObject();
            g.close();

        }
        catch ( IOException e )
        {
            throw new DirectMemoryException( e.getMessage(), e );
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        return type;
    }

    public void render(Tree tree, HttpServletResponse response)
            throws IOException {
        JsonGenerator generator = startResponse(response);
        render(tree, generator);
        generator.close();
    }
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