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

Introduction

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

Prototype

public abstract JsonGenerator useDefaultPrettyPrinter();

Source Link

Document

Convenience method for enabling pretty-printing using the default pretty printer ( com.fasterxml.jackson.core.util.DefaultPrettyPrinter ).

Usage

From source file:io.pdef.json.JsonJacksonFormat.java

/** Writes an object to a writer as a JSON string, does not close the writer. */
public <T> void write(final PrintWriter writer, final T object, final DataTypeDescriptor<T> descriptor,
        final boolean indent) throws IOException {
    if (writer == null)
        throw new NullPointerException("writer");
    if (descriptor == null)
        throw new NullPointerException("descriptor");

    JsonGenerator generator = factory.createGenerator(writer);
    if (indent) {
        generator.useDefaultPrettyPrinter();
    }/*from  w  w w. j  a v a2s.  com*/

    write(object, descriptor, generator);
    generator.flush();
}

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From source file:com.iflytek.edu.cloud.frame.spring.MappingJackson2HttpMessageConverterExt.java

@Override
protected void writeInternal(Object object, HttpOutputMessage outputMessage)
        throws IOException, HttpMessageNotWritableException {
    outputMessage.getHeaders().setContentType(MediaType.parseMediaType("application/json"));
    JsonEncoding encoding = getJsonEncoding(outputMessage.getHeaders().getContentType());
    JsonGenerator jsonGenerator = this.getObjectMapper().getFactory().createGenerator(outputMessage.getBody(),
            encoding);/*from   w w w . j  a v  a2  s  .c o m*/

    // A workaround for JsonGenerators not applying serialization features
    // https://github.com/FasterXML/jackson-databind/issues/12
    if (this.getObjectMapper().isEnabled(SerializationFeature.INDENT_OUTPUT)) {
        jsonGenerator.useDefaultPrettyPrinter();
    }

    String callBack = (String) RestContextHolder.getContext().getParam(Constants.SYS_PARAM_KEY_CALLBACK);
    try {
        if (StringUtils.hasText(callBack)) {
            String json = this.getObjectMapper().writeValueAsString(object);
            json = callBack + "( " + json + " )";
            outputMessage.getBody().write(json.getBytes(Charset.forName("UTF-8")));
            outputMessage.getBody().flush();
        } else {
            this.getObjectMapper().writeValue(jsonGenerator, object);
        }
    } catch (JsonProcessingException ex) {
        throw new HttpMessageNotWritableException("Could not write JSON: " + ex.getMessage(), ex);
    }
}

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From source file:com.github.hateoas.forms.spring.uber.UberJackson2HttpMessageConverter.java

@Override
protected void writeInternal(Object t, HttpOutputMessage outputMessage)
        throws IOException, HttpMessageNotWritableException {

    UberMessageModel uberModel = new UberMessageModel(t);
    JsonEncoding encoding = getJsonEncoding(outputMessage.getHeaders().getContentType());
    JsonGenerator jsonGenerator = this.objectMapper.getFactory().createGenerator(outputMessage.getBody(),
            encoding);//from w  w  w  .  j a  v a 2s  .  c  o  m

    // A workaround for JsonGenerators not applying serialization features
    // https://github.com/FasterXML/jackson-databind/issues/12
    if (this.objectMapper.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
        jsonGenerator.useDefaultPrettyPrinter();
    }

    try {
        this.objectMapper.writeValue(jsonGenerator, uberModel);
    } catch (JsonProcessingException ex) {
        throw new HttpMessageNotWritableException("Could not write JSON: " + ex.getMessage(), ex);
    }
}

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From source file:de.escalon.hypermedia.spring.uber.UberJackson2HttpMessageConverter.java

@Override
protected void writeInternal(Object t, HttpOutputMessage outputMessage)
        throws IOException, HttpMessageNotWritableException {

    UberMessageModel uberModel = new UberMessageModel(t);
    JsonEncoding encoding = getJsonEncoding(outputMessage.getHeaders().getContentType());
    JsonGenerator jsonGenerator = this.objectMapper.getFactory().createGenerator(outputMessage.getBody(),
            encoding);// w w  w .j a v a 2 s  .c  o m

    // A workaround for JsonGenerators not applying serialization features
    // https://github.com/FasterXML/jackson-databind/issues/12
    if (this.objectMapper.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
        jsonGenerator.useDefaultPrettyPrinter();
    }

    try {
        this.objectMapper.writeValue(jsonGenerator, uberModel);
    } catch (JsonProcessingException ex) {
        throw new HttpMessageNotWritableException("Could not write JSON: " + ex.getMessage(), ex);
    }

}

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From source file:tuwien.aic.crowdsourcing.util.MappingJackson2HttpMessageConverter.java

@Override
protected void writeInternal(Object object, HttpOutputMessage outputMessage)
        throws IOException, HttpMessageNotWritableException {

    JsonEncoding encoding = getJsonEncoding(outputMessage.getHeaders().getContentType());
    JsonGenerator jsonGenerator = this.objectMapper.getFactory().createJsonGenerator(outputMessage.getBody(),
            encoding);/* w w w  .  ja  v  a2 s . com*/
    try {
        if (this.prefixJson) {
            jsonGenerator.writeRaw("{} && ");
        }
        if (this.prettyPrint) {
            jsonGenerator.useDefaultPrettyPrinter();
        }
        this.objectMapper.writeValue(jsonGenerator, object);
    } catch (JsonProcessingException ex) {
        throw new HttpMessageNotWritableException("Could not write JSON: " + ex.getMessage(), ex);
    }
}

---

From source file:de.ii.ogc.wfs.proxy.AbstractWfsProxyService.java

public JsonGenerator createJsonGenerator(OutputStream output) throws IOException {
    JsonGenerator json = jsonFactory.createGenerator(output);
    json.setCodec(jsonMapper);//  w  w  w. j ava2s.  c o m
    //if (useFormattedJsonOutput) {
    json.useDefaultPrettyPrinter();
    //}
    // Zum JSON debuggen hier einschalten.
    //JsonGenerator jsond = new JsonGeneratorDebug(json);
    return json;
}

---

From source file:net.solarnetwork.web.support.JSONView.java

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    PropertyEditorRegistrar registrar = this.propertyEditorRegistrar;
    Enumeration<String> attrEnum = request.getAttributeNames();
    while (attrEnum.hasMoreElements()) {
        String key = attrEnum.nextElement();
        Object val = request.getAttribute(key);
        if (val instanceof PropertyEditorRegistrar) {
            registrar = (PropertyEditorRegistrar) val;
            break;
        }/*from ww  w .j a  v  a 2 s .c  o m*/
    }

    response.setCharacterEncoding(UTF8_CHAR_ENCODING);
    response.setContentType(getContentType());
    Writer writer = response.getWriter();
    if (this.includeParentheses) {
        writer.write('(');
    }
    JsonGenerator json = new JsonFactory().createGenerator(writer);
    json.configure(JsonGenerator.Feature.AUTO_CLOSE_TARGET, false);
    if (indentAmount > 0) {
        json.useDefaultPrettyPrinter();
    }
    json.writeStartObject();
    for (String key : model.keySet()) {
        Object val = model.get(key);
        writeJsonValue(json, key, val, registrar);
    }
    json.writeEndObject();
    json.close();
    if (this.includeParentheses) {
        writer.write(')');
    }
}

---

From source file:org.usrz.libs.webtools.resources.ServeResource.java

private Response produce(String path) throws Exception {

    /* Basic check for null/empty path */
    if ((path == null) || (path.length() == 0))
        return NOT_FOUND;

    /* Get our resource file, potentially a ".less" file for CSS */
    Resource resource = manager.getResource(path);
    if ((resource == null) && path.endsWith(".css")) {
        path = path.substring(0, path.length() - 4) + ".less";
        resource = manager.getResource(path);
    }/*  w ww  . ja  va2 s  .c  om*/

    /* If the root is incorrect, log this, if not found, 404 it! */
    if (resource == null)
        return NOT_FOUND;

    /* Ok, we have a resource on disk, this can be potentially long ... */
    final String fileName = resource.getFile().getName();

    /* Check and validated our cache */
    Entry cached = cache.computeIfPresent(resource, (r, entry) -> entry.resource.hasChanged() ? null : entry);

    /* If we have no cache, we *might* want to cache something */
    if (cached == null) {

        /* What to do, what to do? */
        if ((fileName.endsWith(".css") && minify) || fileName.endsWith(".less")) {

            /* Lessify CSS and cache */
            xlog.debug("Lessifying resource \"%s\"", fileName);
            cached = new Entry(resource, lxess.convert(resource, minify), styleMediaType);

        } else if (fileName.endsWith(".js") && minify) {

            /* Uglify JavaScript and cache */
            xlog.debug("Uglifying resource \"%s\"", fileName);
            cached = new Entry(resource, uglify.convert(resource.readString(), minify, minify),
                    scriptMediaType);

        } else if (fileName.endsWith(".json")) {

            /* Strip comments and normalize JSON */
            xlog.debug("Normalizing JSON resource \"%s\"", fileName);

            /* All to do with Jackson */
            final Reader reader = resource.read();
            final StringWriter writer = new StringWriter();
            final JsonParser parser = json.createParser(reader);
            final JsonGenerator generator = json.createGenerator(writer);

            /* Not minifying? Means pretty printing! */
            if (!minify)
                generator.useDefaultPrettyPrinter();

            /* Get our schtuff through the pipeline */
            parser.nextToken();
            generator.copyCurrentStructure(parser);
            generator.flush();
            generator.close();
            reader.close();
            parser.close();

            /* Cached results... */
            cached = new Entry(resource, writer.toString(), jsonMediaType);

        }

        /* Do we have anything to cache? */
        if (cached != null) {
            xlog.debug("Caching resource \"%s\"", fileName);
            cache.put(resource, cached);
        }
    }

    /* Prepare our basic response from either cache or file */
    final ResponseBuilder response = Response.ok();
    if (cached != null) {

        /* Response from cache */
        xlog.trace("Serving cached resource \"%s\"", fileName);
        response.entity(cached.contents).lastModified(new Date(resource.lastModifiedAt())).type(cached.type);
    } else {

        /* Response from a file */
        xlog.trace("Serving file-based resource \"%s\"", fileName);

        /* If text/* or application/javascript, append encoding */
        MediaType type = MediaTypes.get(fileName);
        if (type.getType().equals("text") || scriptMediaType.isCompatible(type)) {
            type = type.withCharset(charsetName);
        }

        /* Our file is served! */
        response.entity(resource.getFile()).lastModified(new Date(resource.lastModifiedAt())).type(type);
    }

    /* Caching headers and build response */
    final Date expires = Date.from(Instant.now().plus(cacheDuration));
    return response.cacheControl(cacheControl).expires(expires).build();

}

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From source file:org.resthub.web.converter.MappingJackson2XmlHttpMessageConverter.java

@Override
protected void writeInternal(Object object, HttpOutputMessage outputMessage)
        throws IOException, HttpMessageNotWritableException {

    JsonEncoding encoding = getJsonEncoding(outputMessage.getHeaders().getContentType());
    JsonGenerator jsonGenerator = this.objectMapper.getJsonFactory()
            .createJsonGenerator(outputMessage.getBody(), encoding);

    // A workaround for JsonGenerators not applying serialization features
    // https://github.com/FasterXML/jackson-databind/issues/12
    if (this.objectMapper.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
        jsonGenerator.useDefaultPrettyPrinter();
    }//from  w ww .  java2 s  .  co m

    try {
        this.objectMapper.writeValue(jsonGenerator, object);
    } catch (JsonProcessingException ex) {
        throw new HttpMessageNotWritableException("Could not write XML: " + ex.getMessage(), ex);
    }
}

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From source file:org.resthub.web.converter.MappingJackson2JsonHttpMessageConverter.java

@Override
protected void writeInternal(Object object, HttpOutputMessage outputMessage)
        throws IOException, HttpMessageNotWritableException {

    JsonEncoding encoding = getJsonEncoding(outputMessage.getHeaders().getContentType());
    JsonGenerator jsonGenerator = this.objectMapper.getJsonFactory()
            .createJsonGenerator(outputMessage.getBody(), encoding);

    // A workaround for JsonGenerators not applying serialization features
    // https://github.com/FasterXML/jackson-databind/issues/12
    if (this.objectMapper.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
        jsonGenerator.useDefaultPrettyPrinter();
    }//from   w  w w  .  j  ava  2s  . c o  m

    try {
        if (this.prefixJson) {
            jsonGenerator.writeRaw("{} && ");
        }
        this.objectMapper.writeValue(jsonGenerator, object);
    } catch (JsonProcessingException ex) {
        throw new HttpMessageNotWritableException("Could not write JSON: " + ex.getMessage(), ex);
    }
}

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