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

Introduction

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

Prototype

public abstract void writeStartArray() throws IOException, JsonGenerationException;

Source Link

Document

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

Usage

From source file:com.ning.billing.recurly.model.jackson.RecurlyObjectsSerializer.java

@Override
public void serialize(final T values, final JsonGenerator jgen, final SerializerProvider provider)
        throws IOException {
    if (values.isEmpty()) {
        jgen.writeStartArray();
        jgen.writeEndArray();//from   ww  w .  jav  a2  s . c  o m
        return;
    }

    final ToXmlGenerator xmlgen = (ToXmlGenerator) jgen;
    // Nested RecurlyObjects
    final boolean shouldSkipWritingFieldName = xmlgen.getOutputContext()
            .writeFieldName(elementName) == JsonWriteContext.STATUS_EXPECT_VALUE;
    boolean firstValue = true;
    for (final U value : values) {
        if (!shouldSkipWritingFieldName && firstValue) {
            xmlgen.setNextName(new QName(null, elementName));
        } else if (!shouldSkipWritingFieldName) {
            xmlgen.writeFieldName(elementName);
        }
        firstValue = false;

        xmlgen.writeObject(value);
    }
}

From source file:org.tanrabad.survey.service.json.MultiPolygonTypeConverter.java

private void writePolygonArray(JsonGenerator jsonGenerator, List<Location> subPolygon) throws IOException {
    jsonGenerator.writeStartArray();
    for (Location eachLocation : subPolygon) {
        if (eachLocation != null) {
            jsonGenerator.writeStartArray();
            jsonGenerator.writeNumber(eachLocation.getLongitude());
            jsonGenerator.writeNumber(eachLocation.getLatitude());
            jsonGenerator.writeEndArray();
        }//from  w  ww.j a v a 2  s  . c  om
    }
    jsonGenerator.writeEndArray();
}

From source file:de.rallye.mapper.GroupPositionsSerializer.java

@Override
public void serialize(Map<Integer, Node> value, JsonGenerator jgen, SerializerProvider provider)
        throws IOException/*,
                          JsonProcessingException*/ {

    jgen.writeStartArray();

    for (Integer groupId : value.keySet()) {
        int nodeId = value.get(groupId).nodeID;

        jgen.writeStartObject();/*from w ww .  j  a  va2 s.c o m*/

        jgen.writeFieldName(Group.GROUP_ID);
        jgen.writeNumber(groupId);

        jgen.writeFieldName(Node.NODE_ID);
        jgen.writeNumber(nodeId);

        jgen.writeEndObject();

    }

    jgen.writeEndArray();

}

From source file:com.messagehub.samples.servlet.MessageList.java

/**
 * Build message list dependent on the format Message Hub requires. The
 * message list is in the form: [{ "value": base_64_string }, ...]
 *
 * @return {String} String representation of a JSON object.
 * @throws IOException/*from  w w w .j ava2  s  . c  o m*/
 */
public String build() throws IOException {
    final JsonFactory jsonFactory = new JsonFactory();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    JsonGenerator jsonGenerator = null;

    jsonGenerator = jsonFactory.createGenerator(outputStream);

    jsonGenerator.writeStartArray();

    // Write each message as a JSON object in
    // the form:
    // { "value": base_64_string }
    for (int i = 0; i < this.messages.size(); i++) {
        jsonGenerator.writeStartObject();
        jsonGenerator.writeFieldName("value");
        jsonGenerator.writeObject(this.messages.get(i));
        jsonGenerator.writeEndObject();
    }

    jsonGenerator.writeEndArray();

    // Close underlying streams and return string representation.
    jsonGenerator.close();
    outputStream.close();

    return new String(outputStream.toByteArray());
}

From source file:com.netflix.spectator.tdigest.TDigestWriter.java

/**
 * Write a list of measurements to some underlying storage.
 *///from  ww  w  .j a  v a 2s . c  o  m
void write(List<TDigestMeasurement> measurements) throws IOException {
    JsonGenerator gen = json.newGenerator(out);
    gen.writeStartArray();
    gen.flush();
    int pos = buf.position();
    for (TDigestMeasurement m : measurements) {
        json.encode(commonTags, m, gen);
        gen.flush();

        if (out.overflow()) {
            // Ignore the last entry written to the buffer
            out.setPosition(pos);
            gen.writeEndArray();
            gen.close();
            write(buf);

            // Reuse the buffer and write the current entry
            out.reset();
            gen = json.newGenerator(out);
            gen.writeStartArray();
            json.encode(commonTags, m, gen);
            gen.flush();

            // If a single entry is too big, then drop it
            if (out.overflow()) {
                LOGGER.warn("dropping measurement {}, serialized size exceeds the buffer cap", m.id());
                out.reset();
                gen = json.newGenerator(out);
                gen.writeStartArray();
                gen.flush();
            }

            pos = buf.position();
        } else if (buf.remaining() < MIN_FREE) {
            // Not enough free-space, go ahead and write
            gen.writeEndArray();
            gen.close();
            write(buf);

            // Reuse the buffer
            out.reset();
            gen = json.newGenerator(out);
            gen.writeStartArray();
            gen.flush();
            pos = buf.position();
        } else {
            pos = buf.position();
        }
    }

    // Write any data that is still in the buffer
    if (buf.position() > 1) {
        gen.writeEndArray();
        gen.close();
        write(buf);
    }
}

From source file:com.proofpoint.event.client.JsonEventWriter.java

public <T> void writeEvents(EventGenerator<T> events, @Nullable final String token, OutputStream out)
        throws IOException {
    checkNotNull(events, "events is null");
    checkNotNull(out, "out is null");

    final JsonGenerator jsonGenerator = jsonFactory.createGenerator(out, JsonEncoding.UTF8);

    jsonGenerator.writeStartArray();

    events.generate(new EventClient.EventPoster<T>() {
        @Override/*from   w ww.  ja  v  a 2s. c  o m*/
        public void post(T event) throws IOException {
            JsonSerializer<T> serializer = getSerializer(event, token);
            if (serializer == null) {
                throw new InvalidEventException("Event class [%s] has not been registered as an event",
                        event.getClass().getName());
            }

            serializer.serialize(event, jsonGenerator, null);
        }
    });

    jsonGenerator.writeEndArray();
    jsonGenerator.flush();
}

From source file:org.mongojack.internal.ObjectIdSerializer.java

@Override
public void serialize(Object value, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {
    if (value instanceof Iterable) {
        jgen.writeStartArray();
        for (Object item : (Iterable) value) {
            jgen.writeObject(serialiseObject(item));
        }/*from w ww . j a v  a  2 s  .  c o  m*/
        jgen.writeEndArray();
    } else {
        jgen.writeObject(serialiseObject(value));
    }
}

From source file:com.proofpoint.event.client.JsonEventWriter.java

public <T> Writer createEventWriter(final Iterator<T> eventIterator, final String token, final OutputStream out)
        throws IOException {
    checkNotNull(eventIterator, "eventIterator is null");
    checkNotNull(out, "out is null");

    final JsonGenerator jsonGenerator = jsonFactory.createGenerator(out, JsonEncoding.UTF8);

    jsonGenerator.writeStartArray();

    return new Writer() {
        @Override/*from w  ww.  ja v a2s  .c  om*/
        public void write() throws Exception {
            if (eventIterator.hasNext()) {
                T event = eventIterator.next();
                JsonSerializer<T> serializer = getSerializer(event, token);
                if (serializer == null) {
                    throw new InvalidEventException("Event class [%s] has not been registered as an event",
                            event.getClass().getName());
                }

                serializer.serialize(event, jsonGenerator, null);
            } else {
                jsonGenerator.writeEndArray();
                jsonGenerator.flush();
                out.close();
            }
        }
    };
}

From source file:org.emfjson.jackson.streaming.Values.java

public void serializeMany(JsonGenerator generator, String key, EDataType type, Collection<?> values) {
    try {/* ww w  .  ja  va 2s .com*/
        generator.writeFieldName(key);
        generator.writeStartArray();
        for (Object value : values) {
            writeValue(generator, type, value);
        }
        generator.writeEndArray();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:org.emfjson.jackson.streaming.References.java

public void serializeMany(JsonGenerator generator, String key, Collection<?> values) {
    try {//  w  ww .j ava  2 s .  c  o m
        generator.writeFieldName(key);
        generator.writeStartArray();
        for (Object current : values) {
            if (current instanceof EObject) {
                writeRef(generator, (EObject) current);
            }
        }
        generator.writeEndArray();
    } catch (IOException e) {
        e.printStackTrace();
    }

}