@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder = new Jackson2ObjectMapperBuilder();
jackson2ObjectMapperBuilder.indentOutput(true);
converters.add(new MappingJackson2HttpMessageConverter(jackson2ObjectMapperBuilder.build()));
converters.add(new StringHttpMessageConverter());
}
private void configureFeatures(Jackson2ObjectMapperBuilder builder, Map<?, Boolean> features) {
for (Entry<?, Boolean> entry : features.entrySet()) {
if (entry.getValue() != null && entry.getValue()) {
builder.featuresToEnable(entry.getKey());
} else {
builder.featuresToDisable(entry.getKey());
}
}
}
private void configureDateFormat(Jackson2ObjectMapperBuilder builder) {
// We support a fully qualified class name extending DateFormat or a date
// pattern string value
String dateFormat = this.jacksonProperties.getDateFormat();
if (dateFormat != null) {
try {
Class<?> dateFormatClass = ClassUtils.forName(dateFormat, null);
builder.dateFormat((DateFormat) BeanUtils.instantiateClass(dateFormatClass));
} catch (ClassNotFoundException ex) {
builder.dateFormat(new SimpleDateFormat(dateFormat));
}
}
}
@Bean
@Primary
public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = builder.createXmlMapper(false).build();
objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
objectMapper.configure(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS, false);
return objectMapper;
}
/**
* @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);
}
}
/**
* Writes the current {@link DataSetMetadata} to <code>writer</code> as JSON format.
*
* @param writer A non-null writer.
*/
public void to(DataSet dataSet, Writer writer) {
if (writer == null) {
throw new IllegalArgumentException("Writer cannot be null.");
}
try {
builder.build().writer().writeValue(writer, dataSet);
} catch (Exception e) {
throw new TDPException(CommonErrorCodes.UNABLE_TO_SERIALIZE_TO_JSON, e);
}
}
@Bean
@ConditionalOnMissingBean(Jackson2ObjectMapperBuilder.class)
public Jackson2ObjectMapperBuilder jacksonObjectMapperBuilder() {
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
builder.applicationContext(this.applicationContext);
if (this.jacksonProperties.getSerializationInclusion() != null) {
builder.serializationInclusion(this.jacksonProperties.getSerializationInclusion());
}
if (this.jacksonProperties.getTimeZone() != null) {
builder.timeZone(this.jacksonProperties.getTimeZone());
}
configureFeatures(builder, this.jacksonProperties.getDeserialization());
configureFeatures(builder, this.jacksonProperties.getSerialization());
configureFeatures(builder, this.jacksonProperties.getMapper());
configureFeatures(builder, this.jacksonProperties.getParser());
configureFeatures(builder, this.jacksonProperties.getGenerator());
configureDateFormat(builder);
configurePropertyNamingStrategy(builder);
configureModules(builder);
return builder;
}
private void configurePropertyNamingStrategyField(
Jackson2ObjectMapperBuilder builder, String fieldName) {
// Find the field (this way we automatically support new constants
// that may be added by Jackson in the future)
Field field =
ReflectionUtils.findField(
PropertyNamingStrategy.class, fieldName, PropertyNamingStrategy.class);
Assert.notNull(
field,
"Constant named '"
+ fieldName
+ "' not found on "
+ PropertyNamingStrategy.class.getName());
try {
builder.propertyNamingStrategy((PropertyNamingStrategy) field.get(null));
} catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
@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);
}
}
private void configurePropertyNamingStrategyClass(
Jackson2ObjectMapperBuilder builder, Class<?> propertyNamingStrategyClass) {
builder.propertyNamingStrategy(
(PropertyNamingStrategy) BeanUtils.instantiateClass(propertyNamingStrategyClass));
}
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
builder.indentOutput(true).dateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
converters.add(new MappingJackson2HttpMessageConverter(builder.build()));
}
@Bean
public Jackson2ObjectMapperBuilder objectMapperBuilder() {
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
builder.serializationInclusion(JsonInclude.Include.NON_NULL);
return builder;
}
@Bean
public Jackson2ObjectMapperBuilder jacksonBuilder() {
Jackson2ObjectMapperBuilder b = new Jackson2ObjectMapperBuilder();
b.indentOutput(true).dateFormat(new SimpleDateFormat("yyyy-MM-dd"));
return b;
}
@Bean
public ElasticsearchTemplate elasticsearchTemplate(
Client client, Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder) {
return new ElasticsearchTemplate(
client, new CustomEntityMapper(jackson2ObjectMapperBuilder.createXmlMapper(false).build()));
}
private void configureModules(Jackson2ObjectMapperBuilder builder) {
Collection<Module> moduleBeans = getBeans(this.applicationContext, Module.class);
builder.modulesToInstall(moduleBeans.toArray(new Module[moduleBeans.size()]));
}
@Bean
@Primary
@ConditionalOnMissingBean(ObjectMapper.class)
public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
return builder.createXmlMapper(false).build();
}
@Bean
public Jackson2ObjectMapperBuilder jacksonBuilder() {
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
builder.indentOutput(true);
return builder;
}