@Override
protected void renderMergedOutputModel(
Map<String, Object> model, HttpServletRequest request, HttpServletResponse response)
throws Exception {
OutputStream stream =
this.updateContentLength ? createTemporaryOutputStream() : response.getOutputStream();
Object value = filterModel(model);
JsonGenerator generator =
this.objectMapper.getJsonFactory().createJsonGenerator(stream, this.encoding);
// A workaround for JsonGenerators not applying serialization features
// https://github.com/FasterXML/jackson-databind/issues/12
if (this.objectMapper.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
generator.useDefaultPrettyPrinter();
}
if (this.prefixJson) {
generator.writeRaw("{} && ");
}
this.objectMapper.writeValue(generator, value);
if (this.updateContentLength) {
writeToResponse(response, (ByteArrayOutputStream) stream);
}
}
@Test
public void test1() throws IOException {
MapData ld0 = new MapData();
ld0.put("Copyright", "\u00A9 2014, David R. Smith. All Rights Reserved");
ld0.put("License", "http://www.apache.org/licenses/LICENSE-2.0.txt");
MapData ld1 = new MapData();
ld1.put("some key", "some data");
ld1.put("another key", "more data");
MapDataFormatter format = new MapDataFormatter();
format.add(ld0);
format.add(ld1);
StringWriter writer = new StringWriter();
JsonFactory f = new JsonFactory();
JsonGenerator g = null;
try {
g = f.createGenerator(writer);
g.useDefaultPrettyPrinter();
g.writeStartObject();
format.format(g, writer);
g.writeEndObject();
} finally {
g.close();
}
System.err.println(writer.toString());
MapIterator iter3 = new MapDataContentsIterator(ld0);
while (iter3.hasNext()) {
String label = iter3.next();
Assert.assertNotNull(iter3.get(label));
}
}
public byte[] toJSONBytes() {
try {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
JsonFactory jsonFactory = new JsonFactory();
JsonGenerator jsonGenerator =
jsonFactory.createJsonGenerator(outputStream, JsonEncoding.UTF8);
jsonGenerator.useDefaultPrettyPrinter();
jsonGenerator.writeStartObject();
jsonGenerator.writeStringField("type", ContentType);
jsonGenerator.writeStringField("version", Version);
jsonGenerator.writeStringField("uuid", workspaceUUID);
jsonGenerator.writeStringField("name", workspaceName);
jsonGenerator.writeStringField("description", workspaceDescription);
// TODO: More details about who is making the change when and from what previous version?
// jsonGenerator.writeStringField("timestamp", timestamp);
// jsonGenerator.writeStringField("user", user);
// jsonGenerator.writeStringField("previous", previous);
jsonGenerator.writeEndObject();
jsonGenerator.close();
return outputStream.toByteArray();
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public static void toJson(Object pojo, FileWriter fw, boolean prettyPrint)
throws JsonMappingException, JsonGenerationException, IOException {
JsonGenerator jg = jf.createGenerator(fw);
if (prettyPrint) {
jg.useDefaultPrettyPrinter();
}
m.writeValue(jg, pojo);
}
static {
try {
WRITER = JSON_MAPPER.getFactory().createGenerator(System.out);
} catch (final IOException e) {
throw new RuntimeException(e);
}
WRITER.configure(Feature.AUTO_CLOSE_TARGET, false);
WRITER.useDefaultPrettyPrinter();
}
public static String toJson(Object pojo, boolean prettyPrint)
throws JsonMappingException, JsonGenerationException, IOException {
StringWriter sw = new StringWriter();
JsonGenerator jg = jf.createGenerator(sw);
if (prettyPrint) {
jg.useDefaultPrettyPrinter();
}
m.writeValue(jg, pojo);
return sw.toString();
}
public JsonWriter(OutputStream out, boolean pretty, boolean useExtendedOutput)
throws IOException {
JsonGenerator writer = factory.createJsonGenerator(out);
if (pretty) {
writer = writer.useDefaultPrettyPrinter();
}
if (useExtendedOutput) {
gen = new ExtendedJsonOutput(writer);
} else {
gen = new BasicJsonOutput(writer);
}
}
/**
* Helper method called to set or override settings of passed-in {@link JsonGenerator}
*
* @since 2.1
*/
private final void _configureJsonGenerator(JsonGenerator jgen) {
if (_prettyPrinter != null) {
PrettyPrinter pp = _prettyPrinter;
if (pp == NULL_PRETTY_PRINTER) {
jgen.setPrettyPrinter(null);
} else {
/* [JACKSON-851]: Better take care of stateful PrettyPrinters...
* like the DefaultPrettyPrinter.
*/
if (pp instanceof Instantiatable<?>) {
pp = (PrettyPrinter) ((Instantiatable<?>) pp).createInstance();
}
jgen.setPrettyPrinter(pp);
}
} else if (_config.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
jgen.useDefaultPrettyPrinter();
}
// [JACKSON-520]: add support for pass-through schema:
if (_schema != null) {
jgen.setSchema(_schema);
}
}
@Override
public void serialize(CyNetworkView networkView, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonProcessingException {
jgen.useDefaultPrettyPrinter();
jgen.writeStartObject();
jgen.writeStringField(
CytoscapeJsNetworkModule.FORMAT_VERSION_TAG, CytoscapeJsNetworkModule.FORMAT_VERSION);
jgen.writeStringField(CytoscapeJsNetworkModule.GENERATED_BY_TAG, "cytoscape-" + version);
jgen.writeStringField(
CytoscapeJsNetworkModule.TARGET_CYJS_VERSION_TAG,
CytoscapeJsNetworkModule.CYTOSCAPEJS_VERSION);
final CyNetwork network = networkView.getModel();
// Serialize network data table
jgen.writeObjectFieldStart(DATA.getTag());
jgen.writeObject(network.getRow(network));
jgen.writeEndObject();
jgen.writeObjectFieldStart(ELEMENTS.getTag());
// Write array
final List<CyNode> nodes = network.getNodeList();
final List<CyEdge> edges = network.getEdgeList();
jgen.writeArrayFieldStart(NODES.getTag());
for (final CyNode node : nodes) {
jgen.writeStartObject();
// Data field
jgen.writeObjectFieldStart(DATA.getTag());
jgen.writeStringField(ID.getTag(), node.getSUID().toString());
// Write CyRow in "data" field
jgen.writeObject(network.getRow(node));
jgen.writeEndObject();
// Position and other visual props
jgen.writeObject(networkView.getNodeView(node));
// Special case for cytoscape.js format:
// - Selected
jgen.writeBooleanField(
CyNetwork.SELECTED, network.getRow(node).get(CyNetwork.SELECTED, Boolean.class));
jgen.writeEndObject();
}
jgen.writeEndArray();
jgen.writeArrayFieldStart(EDGES.getTag());
for (final CyEdge edge : edges) {
jgen.writeStartObject();
jgen.writeObjectFieldStart(DATA.getTag());
jgen.writeStringField(ID.getTag(), edge.getSUID().toString());
jgen.writeStringField(SOURCE.getTag(), edge.getSource().getSUID().toString());
jgen.writeStringField(TARGET.getTag(), edge.getTarget().getSUID().toString());
// Write CyRow in "data" field
jgen.writeObject(network.getRow(edge));
jgen.writeEndObject();
// Special case for cytoscape.js format:
// - Selected
jgen.writeBooleanField(
CyNetwork.SELECTED, network.getRow(edge).get(CyNetwork.SELECTED, Boolean.class));
jgen.writeEndObject();
}
jgen.writeEndArray();
jgen.writeEndObject();
}
