public void testJsonFactoryLinkage() {
// first, implicit factory, giving implicit linkage
assertSame(MAPPER, MAPPER.getFactory().getCodec());
// and then explicit factory, which should also be implicitly linked
JsonFactory f = new JsonFactory();
ObjectMapper m = new ObjectMapper(f);
assertSame(f, m.getFactory());
assertSame(m, f.getCodec());
}
// [Issue#28]: ObjectMapper.copy()
public void testCopy() throws Exception {
ObjectMapper m = new ObjectMapper();
assertTrue(m.isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
m.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
assertFalse(m.isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
InjectableValues inj = new InjectableValues.Std();
m.setInjectableValues(inj);
assertFalse(m.isEnabled(JsonParser.Feature.ALLOW_COMMENTS));
m.enable(JsonParser.Feature.ALLOW_COMMENTS);
assertTrue(m.isEnabled(JsonParser.Feature.ALLOW_COMMENTS));
// // First: verify that handling of features is decoupled:
ObjectMapper m2 = m.copy();
assertFalse(m2.isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
m2.enable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
assertTrue(m2.isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
assertSame(inj, m2.getInjectableValues());
// but should NOT change the original
assertFalse(m.isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
// nor vice versa:
assertFalse(m.isEnabled(DeserializationFeature.UNWRAP_ROOT_VALUE));
assertFalse(m2.isEnabled(DeserializationFeature.UNWRAP_ROOT_VALUE));
m.enable(DeserializationFeature.UNWRAP_ROOT_VALUE);
assertTrue(m.isEnabled(DeserializationFeature.UNWRAP_ROOT_VALUE));
assertFalse(m2.isEnabled(DeserializationFeature.UNWRAP_ROOT_VALUE));
// // Also, underlying JsonFactory instances should be distinct
assertNotSame(m.getFactory(), m2.getFactory());
// [Issue#122]: Need to ensure mix-ins are not shared
assertEquals(0, m.getSerializationConfig().mixInCount());
assertEquals(0, m2.getSerializationConfig().mixInCount());
assertEquals(0, m.getDeserializationConfig().mixInCount());
assertEquals(0, m2.getDeserializationConfig().mixInCount());
m.addMixIn(String.class, Integer.class);
assertEquals(1, m.getSerializationConfig().mixInCount());
assertEquals(0, m2.getSerializationConfig().mixInCount());
assertEquals(1, m.getDeserializationConfig().mixInCount());
assertEquals(0, m2.getDeserializationConfig().mixInCount());
// [Issue#913]: Ensure JsonFactory Features copied
assertTrue(m2.isEnabled(JsonParser.Feature.ALLOW_COMMENTS));
}
@GET("/backend/aggregate/points")
String getPoints(String content) throws IOException {
logger.debug("getPoints(): content={}", content);
PointsRequest request = ObjectMappers.readRequiredValue(mapper, content, PointsRequest.class);
List<AggregatePoint> points = aggregateDao.readAggregates(request.getFrom(), request.getTo());
StringBuilder sb = new StringBuilder();
JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
jg.writeStartObject();
jg.writeArrayFieldStart("points");
for (AggregatePoint point : points) {
jg.writeStartArray();
jg.writeNumber(point.getCaptureTime());
long durationAverage;
if (point.getTraceCount() == 0) {
durationAverage = 0;
} else {
durationAverage = point.getDurationTotal() / point.getTraceCount();
}
jg.writeNumber(durationAverage / 1000000000.0);
jg.writeNumber(point.getTraceCount());
jg.writeEndArray();
}
jg.writeEndArray();
jg.writeNumberField("fixedAggregateIntervalSeconds", fixedAggregateIntervalSeconds);
jg.writeEndObject();
jg.close();
return sb.toString();
}
public static String objectToJson(Object object) {
JsonGenerator jsonGenerator = null;
ObjectMapper objectMapper = new ObjectMapper();
ByteArrayOutputStream out = null;
String json = null;
try {
try {
String jsonStr = "";
out = new ByteArrayOutputStream();
jsonGenerator = objectMapper.getFactory().createGenerator(out, JsonEncoding.UTF8);
jsonGenerator.writeObject(object);
json = new String(out.toByteArray(), Charset.forName("UTF-8"));
out.toString();
System.out.println(json);
} finally {
if (jsonGenerator != null) {
jsonGenerator.flush();
}
if (!jsonGenerator.isClosed()) {
jsonGenerator.close();
}
if (out != null) {
out.close();
}
jsonGenerator = null;
objectMapper = null;
}
} catch (Exception e) {
}
return json;
}
@RequestMapping(value = "/contacts/email/{email}", method = GET)
public String getContactByEmail(@PathVariable String email) throws JsonProcessingException {
ObjectMapper mapper = new ObjectMapper();
mapper.getFactory().configure(JsonGenerator.Feature.ESCAPE_NON_ASCII, true);
ContactDto contact = contactService.getByEmail(email);
return mapper.writeValueAsString(contact);
}
/**
* @param json A valid JSON stream, may be <code>null</code>.
* @return The {@link DataSetMetadata} instance parsed from stream or <code>null</code> if
* parameter is null. If stream is empty, also returns <code>null</code>.
*/
public DataSet from(InputStream json) {
try {
final ObjectMapper mapper = builder.build();
JsonParser parser = mapper.getFactory().createParser(json);
return mapper.readerFor(DataSet.class).readValue(parser);
} catch (Exception e) {
throw new TDPException(CommonErrorCodes.UNABLE_TO_PARSE_JSON, e);
}
}
public void writeToWriter(Writer writer, Object input) {
final ObjectMapper objectMapper = dataFormat.getObjectMapper();
final JsonFactory factory = objectMapper.getFactory();
try {
JsonGenerator generator = factory.createGenerator(writer);
objectMapper.writeTree(generator, (JsonNode) input);
} catch (IOException e) {
throw LOG.unableToWriteJsonNode(e);
}
}
@SuppressWarnings("unchecked")
public static Lexer getByFullName(String pack, String sub, String name)
throws ResolutionException {
String fullname = name;
if (!pack.isEmpty()) {
if (!sub.isEmpty()) {
fullname = pack + "." + sub + "." + fullname;
} else {
fullname = pack + "." + fullname;
}
}
// Try cache
Lexer lexer = lexers.get(fullname);
if (lexer != null) return lexer;
try {
return (Lexer) Jygments.class.getClassLoader().loadClass(fullname).newInstance();
} catch (InstantiationException x) {
} catch (IllegalAccessException x) {
} catch (ClassNotFoundException x) {
}
InputStream stream = Util.getJsonFile(pack, sub, name, fullname);
if (stream != null) {
try {
String converted = Util.rejsonToJson(stream);
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.getFactory().configure(JsonParser.Feature.ALLOW_COMMENTS, true);
Map<String, Object> json = objectMapper.readValue(converted, HashMap.class);
Object className = json.get("class");
if (className == null) className = "";
lexer = getByName(className.toString());
lexer.addJson(json);
lexer.resolve();
if (lexer != null) {
// Cache it
Lexer existing = lexers.putIfAbsent(fullname, lexer);
if (existing != null) lexer = existing;
}
return lexer;
} catch (JsonParseException x) {
throw new ResolutionException(x);
} catch (JsonMappingException x) {
throw new ResolutionException(x);
} catch (IOException x) {
throw new ResolutionException(x);
}
}
return null;
}
@Override
public void initInputStream(InputStream is) throws InputParserException {
try {
inputStream = is;
parser = mapper.getFactory().createParser(is);
} catch (JsonParseException e) {
throw new InputParserException("Can't initialize the stream to read activities.", e);
} catch (IOException e) {
throw new InputParserException("I/O Exception while initializing the parser", e);
}
}
public static String toPrettyString(byte[] bytes) {
StringWriter w = new StringWriter();
try {
JSON_MAPPER
.getFactory()
.createGenerator(w)
.useDefaultPrettyPrinter()
.writeTree(JSON_MAPPER.readTree(bytes));
return w.toString();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Test
public void writeJSONViaLowerlevelLibs() throws IOException {
final StringWriter writer = new StringWriter();
final ObjectMapper mapper = new ObjectMapper();
final JsonGenerator jgen = mapper.getFactory().createGenerator(writer);
jgen.writeStartObject();
jgen.writeStringField(
"odata.type", "Microsoft.Test.OData.Services.AstoriaDefaultService.Customer");
jgen.writeStringField("*****@*****.**", "Edm.String");
jgen.writeStringField("Name", "A name");
jgen.writeStringField("*****@*****.**", "Edm.Int32");
jgen.writeNumberField("CustomerId", 0);
jgen.writeArrayFieldStart("BackupContactInfo");
jgen.writeStartObject();
jgen.writeArrayFieldStart("AlternativeNames");
jgen.writeString("myname");
jgen.writeEndArray();
jgen.writeArrayFieldStart("EmailBag");
jgen.writeString("*****@*****.**");
jgen.writeEndArray();
jgen.writeObjectFieldStart("ContactAlias");
jgen.writeStringField(
"odata.type", "Microsoft.Test.OData.Services.AstoriaDefaultService.Aliases");
jgen.writeArrayFieldStart("AlternativeNames");
jgen.writeString("myAlternativeName");
jgen.writeEndArray();
jgen.writeEndObject();
jgen.writeEndObject();
jgen.writeEndArray();
jgen.writeEndObject();
jgen.flush();
assertFalse(writer.toString().isEmpty());
}
public static String Object2Json(Object o) {
try {
ObjectMapper mapper = new ObjectMapper();
StringWriter writer = new StringWriter();
JsonFactory factory = mapper.getFactory();
JsonGenerator gen = factory.createGenerator(writer);
mapper.writeValue(gen, o);
gen.close();
String json = writer.toString();
writer.close();
return json;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
@Test
public void should_iterate_row_with_metadata() throws IOException {
// given
String[] columnNames =
new String[] {
"id",
"firstname",
"lastname",
"state",
"registration",
"city",
"birth",
"nbCommands",
"avgAmount"
};
final InputStream input = this.getClass().getResourceAsStream("dataSetRowMetadata.json");
final ObjectMapper mapper = builder.build();
try (JsonParser parser = mapper.getFactory().createParser(input)) {
final DataSet dataSet = mapper.readerFor(DataSet.class).readValue(parser);
final Iterator<DataSetRow> iterator = dataSet.getRecords().iterator();
List<ColumnMetadata> actualColumns = new ArrayList<>();
int recordCount = 0;
while (iterator.hasNext()) {
final DataSetRow next = iterator.next();
actualColumns = next.getRowMetadata().getColumns();
assertThat(actualColumns, not(empty()));
recordCount++;
}
// then
assertEquals(10, recordCount);
for (int i = 0; i < actualColumns.size(); i++) {
final ColumnMetadata column = actualColumns.get(i);
assertEquals(columnNames[i], column.getId());
}
} catch (Exception e) {
throw new TDPException(CommonErrorCodes.UNABLE_TO_PARSE_JSON, e);
}
}
protected void writeJson(ResponseWrapper response, HttpOutputMessage outputMessage)
throws IOException, HttpMessageNotWritableException {
JsonEncoding encoding = getJsonEncoding(outputMessage.getHeaders().getContentType());
ObjectMapper mapper = new ObjectMapper();
// Add support for jackson mixins
JsonMixin[] jsonMixins = response.getJsonResponse().mixins();
for (JsonMixin jsonMixin : jsonMixins) {
mapper.addMixIn(jsonMixin.target(), jsonMixin.mixin());
}
JsonGenerator jsonGenerator =
mapper.getFactory().createGenerator(outputMessage.getBody(), encoding);
try {
mapper.writeValue(jsonGenerator, response.getOriginalResponse());
} catch (IOException ex) {
throw new HttpMessageNotWritableException("Could not write JSON: " + ex.getMessage(), ex);
}
}
/**
* Serializes this processing result as JSON to the provided <code>writer</code>. Documents,
* clusters and other attributes can be included or skipped in the output as requested.
*
* @param writer the writer to serialize this processing result to. The writer will
* <strong>not</strong> be closed.
* @param callback JavaScript function name in which to wrap the JSON response or <code>null
* </code>.
* @param indent if <code>true</code>, the output JSON will be pretty-printed
* @param saveDocuments if <code>false</code>, documents will not be serialized.
* @param saveClusters if <code>false</code>, clusters will not be serialized
* @param saveOtherAttributes if <code>false</code>, other attributes will not be serialized
* @throws IOException in case of any problems with serialization
*/
public void serializeJson(
Writer writer,
String callback,
boolean indent,
boolean saveDocuments,
boolean saveClusters,
boolean saveOtherAttributes)
throws IOException {
final ObjectMapper mapper = new ObjectMapper();
mapper.getFactory().disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
mapper.enable(SerializationFeature.INDENT_OUTPUT);
if (StringUtils.isNotBlank(callback)) {
writer.write(callback + "(");
}
final Map<String, Object> attrs =
prepareAttributesForSerialization(saveDocuments, saveClusters, saveOtherAttributes);
mapper.writeValue(writer, attrs);
if (StringUtils.isNotBlank(callback)) {
writer.write(");");
}
}
public static <T> T readObject(final String in, final Class<T> type) throws IOException {
final JsonParser parser =
mapper
.getFactory()
.createJsonParser(
new StringReader(in) {
@Override
public String toString() {
return "message";
} // overridden for better source in error message
});
final T result = mapper.readValue(parser, type);
boolean trailingContent;
try {
trailingContent = parser.nextToken() != null;
} catch (IOException e) {
trailingContent = true;
}
if (trailingContent) {
throw new IOException("Unexpected trailing content at " + parser.getCurrentLocation());
}
return result;
}
@Test
public void testCompleteSetup() {
NopAnnotationIntrospector annotationIntrospector = NopAnnotationIntrospector.instance;
ObjectMapper objectMapper = new ObjectMapper();
assertTrue(this.factory.isSingleton());
assertEquals(ObjectMapper.class, this.factory.getObjectType());
Map<Class<?>, JsonDeserializer<?>> deserializers = new HashMap<Class<?>, JsonDeserializer<?>>();
deserializers.put(Date.class, new DateDeserializer());
factory.setObjectMapper(objectMapper);
JsonSerializer serializer1 = new ClassSerializer();
JsonSerializer serializer2 = new NumberSerializer();
factory.setSerializers(serializer1);
factory.setSerializersByType(
Collections.<Class<?>, JsonSerializer<?>>singletonMap(Boolean.class, serializer2));
factory.setDeserializersByType(deserializers);
factory.setAnnotationIntrospector(annotationIntrospector);
this.factory.setFeaturesToEnable(
SerializationFeature.FAIL_ON_EMPTY_BEANS,
DeserializationFeature.UNWRAP_ROOT_VALUE,
JsonParser.Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER,
JsonGenerator.Feature.WRITE_NUMBERS_AS_STRINGS);
this.factory.setFeaturesToDisable(
MapperFeature.AUTO_DETECT_GETTERS,
MapperFeature.AUTO_DETECT_FIELDS,
JsonParser.Feature.AUTO_CLOSE_SOURCE,
JsonGenerator.Feature.QUOTE_FIELD_NAMES);
assertFalse(getSerializerFactoryConfig(objectMapper).hasSerializers());
assertFalse(getDeserializerFactoryConfig(objectMapper).hasDeserializers());
this.factory.setSerializationInclusion(JsonInclude.Include.NON_NULL);
this.factory.afterPropertiesSet();
assertTrue(objectMapper == this.factory.getObject());
assertTrue(getSerializerFactoryConfig(objectMapper).hasSerializers());
assertTrue(getDeserializerFactoryConfig(objectMapper).hasDeserializers());
Serializers serializers =
getSerializerFactoryConfig(objectMapper).serializers().iterator().next();
assertTrue(
serializers.findSerializer(null, SimpleType.construct(Class.class), null) == serializer1);
assertTrue(
serializers.findSerializer(null, SimpleType.construct(Boolean.class), null) == serializer2);
assertNull(serializers.findSerializer(null, SimpleType.construct(Number.class), null));
assertTrue(
annotationIntrospector
== objectMapper.getSerializationConfig().getAnnotationIntrospector());
assertTrue(
annotationIntrospector
== objectMapper.getDeserializationConfig().getAnnotationIntrospector());
assertTrue(
objectMapper.getSerializationConfig().isEnabled(SerializationFeature.FAIL_ON_EMPTY_BEANS));
assertTrue(
objectMapper
.getDeserializationConfig()
.isEnabled(DeserializationFeature.UNWRAP_ROOT_VALUE));
assertTrue(
objectMapper
.getFactory()
.isEnabled(JsonParser.Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER));
assertTrue(objectMapper.getFactory().isEnabled(JsonGenerator.Feature.WRITE_NUMBERS_AS_STRINGS));
assertFalse(objectMapper.getSerializationConfig().isEnabled(MapperFeature.AUTO_DETECT_GETTERS));
assertFalse(
objectMapper.getDeserializationConfig().isEnabled(MapperFeature.AUTO_DETECT_FIELDS));
assertFalse(objectMapper.getFactory().isEnabled(JsonParser.Feature.AUTO_CLOSE_SOURCE));
assertFalse(objectMapper.getFactory().isEnabled(JsonGenerator.Feature.QUOTE_FIELD_NAMES));
assertTrue(
objectMapper.getSerializationConfig().getSerializationInclusion()
== JsonInclude.Include.NON_NULL);
}
@SuppressWarnings("resource")
public void writeJsonResponse(
HttpServletResponse response,
Object responseObject,
Class<?> jsonView,
boolean streamResponse,
boolean isMultipart)
throws IOException, JsonGenerationException, JsonMappingException {
ObjectMapper objectMapper = configurationService.getJsonHandler().getMapper();
if (isMultipart) {
response.setContentType(RouterController.TEXT_HTML.toString());
response.setCharacterEncoding(RouterController.TEXT_HTML.getCharSet().name());
ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
bos.write("<html><body><textarea>".getBytes(ExtDirectSpringUtil.UTF8_CHARSET));
String responseJson;
if (jsonView == null) {
responseJson = objectMapper.writeValueAsString(responseObject);
} else {
responseJson = objectMapper.writerWithView(jsonView).writeValueAsString(responseObject);
}
responseJson = responseJson.replace(""", "\\"");
bos.write(responseJson.getBytes(ExtDirectSpringUtil.UTF8_CHARSET));
bos.write("</textarea></body></html>".getBytes(ExtDirectSpringUtil.UTF8_CHARSET));
response.setContentLength(bos.size());
FileCopyUtils.copy(bos.toByteArray(), response.getOutputStream());
} else {
response.setContentType(APPLICATION_JSON.toString());
response.setCharacterEncoding(APPLICATION_JSON.getCharSet().name());
ServletOutputStream outputStream = response.getOutputStream();
if (!streamResponse) {
ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
JsonGenerator jsonGenerator =
objectMapper.getFactory().createJsonGenerator(bos, JsonEncoding.UTF8);
if (jsonView == null) {
objectMapper.writeValue(jsonGenerator, responseObject);
} else {
objectMapper.writerWithView(jsonView).writeValue(jsonGenerator, responseObject);
}
response.setContentLength(bos.size());
outputStream.write(bos.toByteArray());
jsonGenerator.close();
} else {
JsonGenerator jsonGenerator =
objectMapper.getFactory().createJsonGenerator(outputStream, JsonEncoding.UTF8);
if (jsonView == null) {
objectMapper.writeValue(jsonGenerator, responseObject);
} else {
objectMapper.writerWithView(jsonView).writeValue(jsonGenerator, responseObject);
}
jsonGenerator.close();
}
outputStream.flush();
}
}