/
MappingJacksonJsonViewEx.java
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/
MappingJacksonJsonViewEx.java
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package org.mongeez.examples.utils;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.SerializationConfig;
import org.codehaus.jackson.map.annotate.JsonSerialize;
import org.springframework.web.servlet.view.json.MappingJacksonJsonView;
import java.util.Map;
public class MappingJacksonJsonViewEx extends MappingJacksonJsonView {
public MappingJacksonJsonViewEx() {
this(new ObjectMapper());
}
public MappingJacksonJsonViewEx(ObjectMapper objectMapper) {
excludeNullsFromPayload(objectMapper);
doNotFailOnEmptyBeans(objectMapper);
setObjectMapper(objectMapper);
}
@SuppressWarnings("unchecked")
@Override
protected Object filterModel(Map<String, Object> model) {
Map map = (Map) super.filterModel(model);
if (map.size() == 1) {
return map.values().toArray()[0];
}
return map;
}
public static void excludeNullsFromPayload(ObjectMapper objectMapper) {
objectMapper.getSerializationConfig().setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
}
public static void doNotFailOnEmptyBeans(ObjectMapper objectMapper) {
objectMapper.getSerializationConfig().disable(SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS);
}
}