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

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

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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:org.teiid.olingo.TeiidODataJsonSerializer.java

public SerializerResult complexCollection(final ServiceMetadata metadata, final EdmComplexType type,
        final Property result, final ContextURL contextURL, final URI nextLink) throws SerializerException {
    CircleStreamBuffer buffer = new CircleStreamBuffer();
    try {// w  w  w  .j  a v  a 2 s.  c  om
        JsonGenerator json = new JsonFactory().createGenerator(buffer.getOutputStream());
        json.writeStartObject();

        if (contextURL != null && (isODataMetadataFull || !isODataMetadataNone)) {
            json.writeStringField(Constants.JSON_CONTEXT, ContextURLBuilder.create(contextURL).toASCIIString());
        }
        json.writeFieldName(Constants.VALUE);
        json.writeStartArray();
        for (Object value : result.asCollection()) {
            json.writeStartObject();
            writeComplexValue(metadata, type, ((ComplexValue) value).getValue(), null, json, null,
                    (ComplexValue) value, null, result.getName());
            json.writeEndObject();
        }
        json.writeEndArray();

        if (nextLink != null) {
            json.writeStringField(Constants.JSON_NEXT_LINK, nextLink.toASCIIString());
        }

        json.close();
    } catch (final IOException e) {
        throw new SerializerException("An I/O exception occurred.", e,
                SerializerException.MessageKeys.IO_EXCEPTION);
    }
    return SerializerResultImpl.with().content(buffer.getInputStream()).build();
}

From source file:org.teiid.olingo.TeiidODataJsonSerializer.java

public SerializerResult complexCollection(final ServiceMetadata metadata,
        final List<List<ComplexReturnType>> result, final ContextURL contextURL, final URI nextLink)
        throws SerializerException {
    CircleStreamBuffer buffer = new CircleStreamBuffer();
    try {//from   ww  w .jav a 2s  .  com
        JsonGenerator json = new JsonFactory().createGenerator(buffer.getOutputStream());
        json.writeStartObject();

        if (contextURL != null && (isODataMetadataFull || !isODataMetadataNone)) {
            json.writeStringField(Constants.JSON_CONTEXT, ContextURLBuilder.create(contextURL).toASCIIString());
        }
        json.writeFieldName(Constants.VALUE);
        json.writeStartArray();
        for (List<ComplexReturnType> ct : result) {
            json.writeStartObject();
            for (final ComplexReturnType type : ct) {
                if (!type.isExpand()) {
                    json.writeStringField(type.getName() + Constants.JSON_NAVIGATION_LINK,
                            type.getEntity().getId().toASCIIString());
                } else {
                    json.writeFieldName(type.getName());
                    writeEntity(metadata, type.getEdmEntityType(), type.getEntity(), null, null, null, null,
                            false, null, type.getName(), json);
                }
            }
            json.writeEndObject();
        }
        json.writeEndArray();

        if (nextLink != null) {
            json.writeStringField(Constants.JSON_NEXT_LINK, nextLink.toASCIIString());
        }

        json.close();
    } catch (final IOException | DecoderException e) {
        throw new SerializerException("An I/O exception occurred.", e,
                SerializerException.MessageKeys.IO_EXCEPTION);
    }
    return SerializerResultImpl.with().content(buffer.getInputStream()).build();
}

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

private void serializeContainment(JsonGenerator generator, String key, EReference containment, EObject owner,
        Object value) throws IOException {

    if (containment.isMany()) {
        final Collection<?> values = (Collection<?>) value;

        generator.writeFieldName(key);//from  ww  w  .ja va 2  s  . c  o  m
        generator.writeStartArray();
        for (Object current : values) {
            EObject target = (EObject) current;

            if (isContainmentProxy(owner, target)) {
                referenceWriter.writeRef(generator, target);
            } else {
                generate(generator, target);
            }

        }
        generator.writeEndArray();

    } else {

        generator.writeFieldName(key);
        if (isContainmentProxy(owner, (EObject) value)) {
            referenceWriter.writeRef(generator, (EObject) value);
        } else {
            generate(generator, (EObject) value);
        }

    }
}

From source file:data.DefaultExchanger.java

public void exportData(String dbName, String catalogName, final JsonGenerator generator,
        JdbcTemplate jdbcTemplate) throws IOException {
    generator.writeFieldName(getTable());
    generator.writeStartArray();
    final int[] rowCount = { 0 };
    jdbcTemplate.query(getSelectSql(), new RowCallbackHandler() {
        @Override//from   w  w w  . j a v  a 2 s.  c  om
        public void processRow(ResultSet rs) throws SQLException {
            try {
                generator.writeStartObject();
                setNode(generator, rs);
                generator.writeEndObject();
                rowCount[0]++;
            } catch (Exception e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            }
        }
    });
    generator.writeEndArray();
    play.Logger.info("exported {{}} {}", rowCount[0], getTable());

    if (hasSequence()) {
        String sequenceName = sequenceName();
        long sequenceValue = 0;
        if (dbName.equalsIgnoreCase("MySQL")) {
            String sql = String.format("SELECT `AUTO_INCREMENT` FROM INFORMATION_SCHEMA.TABLES "
                    + "WHERE TABLE_SCHEMA = '%s' AND TABLE_NAME = '%s'", catalogName, getTable());
            sequenceValue = jdbcTemplate.queryForObject(sql, Long.class);
        } else if (dbName.equalsIgnoreCase("H2")) {
            sequenceValue = jdbcTemplate.queryForObject("CALL NEXT VALUE FOR " + sequenceName, Long.class);
        }
        generator.writeFieldName(sequenceName);
        generator.writeNumber(sequenceValue);
        play.Logger.info("exported sequence {{}}", sequenceName());
    }
}

From source file:org.h2gis.drivers.geojson.GeoJsonWriteDriver.java

/**
 * Write coordinate array./*from   ww w .  ja v a 2  s.  c  o m*/
 *
 * @param coordinates
 * @param gen
 * @throws IOException
 */
private void writeCoordinates(Coordinate[] coordinates, JsonGenerator gen) throws IOException {
    gen.writeStartArray();
    for (Coordinate coord : coordinates) {
        writeCoordinate(coord, gen);
    }
    gen.writeEndArray();
}

From source file:org.h2gis.drivers.geojson.GeoJsonWriteDriver.java

/**
 * Write coordinate positions.//from w w  w . ja v a2  s  .  c o m
 *
 * @param coordinate
 * @param gen
 * @throws IOException
 */
private void writeCoordinate(Coordinate coordinate, JsonGenerator gen) throws IOException {
    gen.writeStartArray();
    gen.writeNumber(coordinate.x);
    gen.writeNumber(coordinate.y);
    if (!Double.isNaN(coordinate.z)) {
        gen.writeNumber(coordinate.z);
    }
    gen.writeEndArray();
}

From source file:org.eclipse.winery.repository.resources.AbstractComponentsResource.java

/**
 * Used by org.eclipse.winery.repository.repository.client and by the
 * artifactcreationdialog.tag. Especially the "name" field is used there at
 * the UI//from w  w w  . j  a  va2  s.  c  o  m
 * 
 * @return A list of all ids of all instances of this component type. If the
 *         "name" attribute is required, that name is used as id <br />
 *         Format:
 *         <code>[({"namespace": "<namespace>", "id": "<id>"},)* ]</code>. A
 *         <code>name<code> field is added if the model allows an additional name attribute
 */
@GET
@Produces(MediaType.APPLICATION_JSON)
public String getListOfAllIds() {
    Class<? extends TOSCAComponentId> idClass = Utils.getComponentIdClassForComponentContainer(this.getClass());
    boolean supportsNameAttribute = Util.instanceSupportsNameAttribute(idClass);
    SortedSet<? extends TOSCAComponentId> allTOSCAcomponentIds = Repository.INSTANCE
            .getAllTOSCAComponentIds(idClass);
    JsonFactory jsonFactory = new JsonFactory();
    StringWriter sw = new StringWriter();

    try {
        JsonGenerator jg = jsonFactory.createGenerator(sw);
        // We produce org.eclipse.winery.repository.client.WineryRepositoryClient.NamespaceAndId by hand here
        // Refactoring could move this class to common and fill it here
        jg.writeStartArray();
        for (TOSCAComponentId id : allTOSCAcomponentIds) {
            jg.writeStartObject();
            jg.writeStringField("namespace", id.getNamespace().getDecoded());
            jg.writeStringField("id", id.getXmlId().getDecoded());
            if (supportsNameAttribute) {
                AbstractComponentInstanceResource componentInstaceResource = AbstractComponentsResource
                        .getComponentInstaceResource(id);
                String name = ((IHasName) componentInstaceResource).getName();
                jg.writeStringField("name", name);
            }
            jg.writeEndObject();
        }
        jg.writeEndArray();
        jg.close();
    } catch (Exception e) {
        AbstractComponentsResource.logger.error(e.getMessage(), e);
        return "[]";
    }
    return sw.toString();
}

From source file:org.apache.olingo.commons.core.serialization.JsonSerializer.java

private void collection(final JsonGenerator jgen, final EdmTypeInfo typeInfo, final ValueType valueType,
        final List<?> value) throws IOException, EdmPrimitiveTypeException {

    jgen.writeStartArray();

    for (Object item : value) {
        final EdmTypeInfo itemTypeInfo = typeInfo == null ? null
                : new EdmTypeInfo.Builder().setTypeExpression(typeInfo.getFullQualifiedName().toString())
                        .build();// w  w  w  . ja v  a 2 s.c o  m
        switch (valueType) {
        case COLLECTION_PRIMITIVE:
            primitiveValue(jgen, itemTypeInfo, item);
            break;

        case COLLECTION_GEOSPATIAL:
            jgen.writeStartObject();
            geoSerializer.serialize(jgen, (Geospatial) item);
            jgen.writeEndObject();
            break;

        case COLLECTION_ENUM:
            jgen.writeString(item.toString());
            break;

        case COLLECTION_COMPLEX:
            @SuppressWarnings("unchecked")
            final List<Property> complexItem = (List<Property>) item;
            complexValue(jgen, itemTypeInfo, complexItem, null);
            break;

        case COLLECTION_LINKED_COMPLEX:
            final LinkedComplexValue complexItem2 = (LinkedComplexValue) item;
            complexValue(jgen, itemTypeInfo, complexItem2.getValue(), complexItem2);
            break;

        default:
        }
    }

    jgen.writeEndArray();
}

From source file:models.CoefficientSerializer.java

@Override
public void serialize(Coefficient coefficient, JsonGenerator jgen, SerializerProvider provider)
        throws IOException {
    jgen.writeStartObject();//  w w  w.  j ava 2 s .  co  m
    jgen.writeStringField("id", coefficient.getId());
    jgen.writeFieldName("unit");
    jgen.writeObject(coefficient.getUnit());
    jgen.writeFieldName("keywords");
    jgen.writeObject(coefficient.getKeywords());
    jgen.writeFieldName("value");
    jgen.writeObject(coefficient.getValue());

    jgen.writeFieldName("groups");
    jgen.writeStartArray();
    for (Group group : coefficient.getGroups()) {
        jgen.writeStartObject();
        jgen.writeStringField("id", group.getId());
        jgen.writeStringField("label", group.getLabel());
        jgen.writeEndObject();
    }
    jgen.writeEndArray();

    jgen.writeFieldName("relations");
    jgen.writeStartArray();
    for (DerivedRelation relation : coefficient.getDerivedRelations()) {
        jgen.writeObject(relation);
    }
    jgen.writeEndArray();
    jgen.writeEndObject();
}