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

Introduction

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

Prototype

public abstract void writeStartObject() throws IOException, JsonGenerationException;

Source Link

Document

Method for writing starting marker of a JSON Object value (character '{'; plus possible white space decoration if pretty-printing is enabled).

Usage

From source file:io.swagger.inflector.processors.JsonNodeExampleSerializer.java

public void writeValue(JsonGenerator jgen, String field, Example o) throws IOException {
    if (o instanceof ArrayExample) {
        ArrayExample obj = (ArrayExample) o;
        jgen.writeArrayFieldStart(field);
        for (Example item : obj.getItems()) {
            if (item.getName() != null) {
                jgen.writeStartObject();
                writeTo(jgen, item);/*  w  w w .j  a v  a  2 s  .com*/
                jgen.writeEndObject();
            } else {
                writeTo(jgen, item);
            }
        }
        jgen.writeEndArray();
    } else if (o instanceof BooleanExample) {
        BooleanExample obj = (BooleanExample) o;
        if (field != null) {
            jgen.writeBooleanField(field, obj.getValue());
        } else {
            jgen.writeBoolean(obj.getValue());
        }
    } else if (o instanceof DecimalExample) {
        DecimalExample obj = (DecimalExample) o;
        if (field != null) {
            jgen.writeNumberField(field, obj.getValue());
        } else {
            jgen.writeNumber(obj.getValue());
        }
    } else if (o instanceof DoubleExample) {
        DoubleExample obj = (DoubleExample) o;
        if (field != null) {
            jgen.writeNumberField(field, obj.getValue());
        } else {
            jgen.writeNumber(obj.getValue());
        }
    } else if (o instanceof FloatExample) {
        FloatExample obj = (FloatExample) o;
        if (field != null) {
            jgen.writeNumberField(field, obj.getValue());
        } else {
            jgen.writeNumber(obj.getValue());
        }
    } else if (o instanceof IntegerExample) {
        IntegerExample obj = (IntegerExample) o;
        if (field != null) {
            jgen.writeNumberField(field, obj.getValue());
        } else {
            jgen.writeNumber(obj.getValue());
        }
    } else if (o instanceof LongExample) {
        LongExample obj = (LongExample) o;
        if (field != null) {
            jgen.writeNumberField(field, obj.getValue());
        } else {
            jgen.writeNumber(obj.getValue());
        }
    } else if (o instanceof ObjectExample) {
        ObjectExample obj = (ObjectExample) o;
        if (field != null) {
            jgen.writeObjectField(field, obj);
        }
    } else if (o instanceof StringExample) {
        StringExample obj = (StringExample) o;
        if (field != null) {
            jgen.writeStringField(field, obj.getValue());
        } else {
            jgen.writeString(obj.getValue());
        }
    }
}

---

From source file:org.bndtools.rt.repository.server.RepositoryResourceComponent.java

@GET
@Path("bundles")
@Produces(MediaType.APPLICATION_JSON)/*  w  ww .  ja v a2  s.c  o m*/
public Response listBundles(@Context UriInfo uriInfo) throws Exception {
    MultivaluedMap<String, String> queryParams = uriInfo.getQueryParameters();
    List<String> patterns = queryParams.get("pattern");
    if (patterns == null || patterns.isEmpty())
        return Response.status(Status.BAD_REQUEST).entity("Bundle listing requires 'pattern' query parameter.")
                .build();

    UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder().path("{bsn}");
    StringWriter writer = new StringWriter();
    JsonGenerator generator = jsonFactory.createJsonGenerator(writer);
    generator.writeStartArray();

    for (String pattern : patterns) {
        List<String> list = repo.list(pattern);
        for (String bsn : list) {
            generator.writeStartObject();
            generator.writeStringField("bsn", bsn);
            generator.writeStringField("href", uriBuilder.build(bsn).toString());
            generator.writeEndObject();
        }
    }
    generator.writeEndArray();
    generator.close();

    return Response.ok(writer.toString(), MediaType.APPLICATION_JSON).build();
}

---

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

private <K, V> void writeMap(@Nonnull final Map<K, V> object, final MapDescriptor<K, V> descriptor,
        final JsonGenerator generator) throws IOException {
    DataTypeDescriptor<K> keyd = descriptor.getKey();
    DataTypeDescriptor<V> valued = descriptor.getValue();

    generator.writeStartObject();
    for (Map.Entry<K, V> entry : object.entrySet()) {
        K key = entry.getKey();//ww w  .ja v  a  2 s  .c o  m
        V value = entry.getValue();
        if (key == null) {
            throw new JsonFormatException("Null map key");
        }

        String k = objectFormat.writeMapKey(key, keyd);
        generator.writeFieldName(k);
        write(value, valued, generator);
    }
    generator.writeEndObject();
}

---

From source file:DAO.BestellingDAOJson.java

public void createBestelling(Bestelling bestelling, int klant_id) throws SQLException {
    try {/*from   w  w  w  .  j a v a  2 s.c  o m*/

        JsonFactory jfactory = new JsonFactory();

        /*** write to file ***/

        JsonGenerator jGenerator = jfactory.createJsonGenerator(
                new FileOutputStream("C:\\Users\\maurice\\Desktop\\Workshoptest.json"), JsonEncoding.UTF8);

        jGenerator.writeStartObject();
        jGenerator.writeNumberField("klantID", bestelling.getKlant_id());
        jGenerator.writeNumberField("bestelID", bestelling.getBestelling_id());
        jGenerator.writeFieldName("ArtikelBestellingArray");
        jGenerator.writeStartArray();
        for (ArtikelBestelling artikel : (ArrayList<ArtikelBestelling>) bestelling.getArtikelBestellingList()) {

            jGenerator.writeStartObject();
            jGenerator.writeNumberField("artikelID", artikel.getArtikelPojo().getArtikelID());
            jGenerator.writeNumberField("artikelAantal", artikel.getAantal_artikelen());
            jGenerator.writeEndObject();
        }
        jGenerator.writeEndArray();
        jGenerator.writeEndObject();
        jGenerator.close();
    } catch (JsonGenerationException e) {

        e.printStackTrace();

    } catch (IOException e) {

        e.printStackTrace();

    }

}

---

From source file:com.basho.riak.client.query.MapReduce.java

/**
 * Creates the JSON string of the M/R job for submitting to the
 * {@link RawClient}/*w  ww.j a  v  a  2  s . c o  m*/
 * 
 * Uses Jackson to write out the JSON string. I'm not very happy with this
 * method, it is a candidate for change.
 * 
 * TODO re-evaluate this method, look for something smaller and more elegant.
 * 
 * @return a String of JSON
 * @throws RiakException
 *             if, for some reason, we can't create a JSON string.
 */
private String writeSpec() throws RiakException {

    final ByteArrayOutputStream out = new ByteArrayOutputStream();

    try {
        JsonGenerator jg = new JsonFactory().createJsonGenerator(out, JsonEncoding.UTF8);
        jg.setCodec(new ObjectMapper());

        jg.writeStartObject();

        jg.writeFieldName("inputs");
        writeInput(jg);

        jg.writeFieldName("query");
        jg.writeStartArray();

        writePhases(jg);

        jg.writeEndArray();
        if (timeout != null) {
            jg.writeNumberField("timeout", timeout);
        }

        jg.writeEndObject();
        jg.flush();

        return out.toString("UTF8");
    } catch (IOException e) {
        throw new RiakException(e);
    }
}

---

From source file:com.github.lynxdb.server.api.http.handlers.EpQuery.java

private void saveResponse(OutputStream _output, List<Query> _queries) throws IOException {
    JsonFactory jFactory = new JsonFactory();
    JsonGenerator jGenerator;

    jGenerator = jFactory.createGenerator(_output, JsonEncoding.UTF8);
    jGenerator.writeStartArray();/*from  w  ww .j a v a 2  s .com*/

    for (Query q : _queries) {
        TimeSerie ts;

        ts = engine.query(q);

        jGenerator.writeStartObject();

        jGenerator.writeStringField("metric", q.getName());

        //tags
        jGenerator.writeObjectFieldStart("tags");
        if (q.getTags() != null) {
            for (String tagk : q.getTags().keySet()) {
                jGenerator.writeStringField(tagk, q.getTags().get(tagk));
            }
        }
        jGenerator.writeEndObject();

        //dps
        jGenerator.writeObjectFieldStart("dps");
        while (ts.hasNext()) {
            Entry e = ts.next();
            jGenerator.writeNumberField(String.valueOf(e.getTime()), e.getValue());
        }
        jGenerator.writeEndObject();

        //endQuery
        jGenerator.writeEndObject();
    }
    jGenerator.writeEndArray();
    jGenerator.close();
    _output.flush();
    _output.close();

}

---

From source file:net.opentsdb.tree.Leaf.java

/**
 * Writes the leaf to a JSON object for storage. This is necessary for the CAS
 * calls and to reduce storage costs since we don't need to store UID names
 * (particularly as someone may rename a UID)
 * @return The byte array to store// w w w  .  ja v a2s.co m
 */
private byte[] toStorageJson() {
    final ByteArrayOutputStream output = new ByteArrayOutputStream(display_name.length() + tsuid.length() + 30);
    try {
        final JsonGenerator json = JSON.getFactory().createGenerator(output);

        json.writeStartObject();

        // we only need to write a small amount of information
        json.writeObjectField("displayName", display_name);
        json.writeObjectField("tsuid", tsuid);

        json.writeEndObject();
        json.close();

        // TODO zero copy?
        return output.toByteArray();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:com.ning.metrics.serialization.event.SmileEnvelopeEvent.java

public void writeToJsonGenerator(final JsonGenerator gen) throws IOException {
    // writes '{eventName:<name>,payload:{<data>}}' --it's kind of silly but ultimately inconsequential to nest them like this.
    gen.writeStartObject();
    gen.writeStringField("eventName", eventName);
    gen.writeFieldName("payload");
    /* Note: output format used depends completely on generator we are being passed
     * and NOT on which mapper we use -- mappers are format independent and rely
     * on underlying JsonParser/JsonGenerator for low-level handling.
     *///from  ww w . ja v a 2s . c  o m
    getObjectMapper().writeTree(gen, root);
    gen.writeEndObject();
}

---

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