com.fasterxml.jackson.databind.ser.BeanPropertyWriter Java Examples

@Override
public List<BeanPropertyWriter> changeProperties(SerializationConfig config, BeanDescription beanDesc, List<BeanPropertyWriter> beanProperties) {
  for (BeanPropertyWriter beanProperty : beanProperties) {
    StoredAsJson storedAsJson = beanProperty.getAnnotation(StoredAsJson.class);
    if (storedAsJson != null && !StoredAsJson.NULL.equals(storedAsJson.empty())) {
      final JsonSerializer<Object> nullSerializer;
      if (storedAsJson.binary()) {
        nullSerializer = new ConstantBinarySerializer(storedAsJson.empty());
      } else {
        nullSerializer = new ConstantSerializer(storedAsJson.empty());
      }

      beanProperty.assignNullSerializer(nullSerializer);
    }
  }

  return super.changeProperties(config, beanDesc, beanProperties);
}
 

@Override
protected void processViews(SerializationConfig config, BeanSerializerBuilder builder) {
	super.processViews(config, builder);
	// ignore fields only for concrete class
	// note, that you can avoid or change this check
	Class<?> beanClass = builder.getBeanDescription().getBeanClass();
	ClassUtil.ClassInfo classInfo = ClassUtil.getClassInfo(beanClass);
	// if (builder.getBeanDescription().getBeanClass().equals(Entity.class))
	// {
	// get original writer
	List<BeanPropertyWriter> originalWriters = builder.getProperties();
	// create actual writers
	List<BeanPropertyWriter> writers = new ArrayList<BeanPropertyWriter>();
	String[] fs = this._getFilterFields(classInfo);
	for (BeanPropertyWriter writer : originalWriters) {
		final String propName = writer.getName();
		// if it isn't ignored field, add to actual writers list
		boolean find = isFilterField(  classInfo,  propName,  fs);

		if(!find){
			writers.add(writer);
		}
	}
	builder.setProperties(writers);
}
 

protected StdScalarSerializer<Object> getSecretFileSerializer(
    BeanPropertyWriter beanPropertyWriter, SecretFile annotation, boolean shouldDecrypt) {
  return new StdScalarSerializer<Object>(String.class, false) {
    @Override
    public void serialize(Object value, JsonGenerator gen, SerializerProvider provider)
        throws IOException {
      if (value != null) {
        String sValue = value.toString();
        if (!EncryptedSecret.isEncryptedSecret(sValue) && !isURL(sValue)) {
          // metadataUrl is either a URL or a filepath, so only add prefix if it's a path
          sValue = annotation.prefix() + sValue;
        }
        if (EncryptedSecret.isEncryptedSecret(sValue) && shouldDecrypt) {
          // Decrypt the content of the file and store on the profile under a random
          // generated file name
          String name = newRandomFilePath(beanPropertyWriter.getName());
          byte[] bytes = secretSessionManager.decryptAsBytes(sValue);
          profile.getDecryptedFiles().put(name, bytes);
          sValue = annotation.prefix() + getCompleteFilePath(name);
        }
        gen.writeString(sValue);
      }
    }
  };
}
 

public JacksonClientModule() {
	setSerializerModifier(new BeanSerializerModifier() {

		@Override
		public List<BeanPropertyWriter> changeProperties(SerializationConfig config, BeanDescription beanDesc,
				List<BeanPropertyWriter> beanProperties) {
			
			for (BeanPropertyWriter writer : beanProperties) {
				if (writer.getAnnotation(LinkedResource.class) != null) {
					writer.assignSerializer(new LinkedResourceUriSerializer());
				}
			}
			
			return beanProperties;
		}
	});
	
	setMixInAnnotation(EntityModel.class, ResourceMixin.class);
	setMixInAnnotation(MethodHandler.class, MethodHandlerMixin.class);
}
 

public void testSingleIntAccessorGeneration() throws Exception
{
    Method method = Bean1.class.getDeclaredMethod("getX");
    AnnotatedMethod annMethod = new AnnotatedMethod(null, method, null, null);
    PropertyAccessorCollector coll = new PropertyAccessorCollector(Bean1.class);
    BeanPropertyWriter bpw = new BeanPropertyWriter(SimpleBeanPropertyDefinition
            .construct(MAPPER_CONFIG, annMethod, new PropertyName("x")),
            annMethod, null,
            null,
            null, null, null,
            false, null, null);
    coll.addIntGetter(bpw);
    BeanPropertyAccessor acc = coll.findAccessor(null);
    Bean1 bean = new Bean1();
    int value = acc.intGetter(bean, 0);
    assertEquals(bean.getX(), value);
}
 

@Test
public void SmartErrorCodePropertyWriter_serializeAsField_still_works_for_non_Error_objects() throws Exception {
    // given
    final SmartErrorCodePropertyWriter secpw = new SmartErrorCodePropertyWriter(mock(BeanPropertyWriter.class));

    // when
    Throwable ex = catchThrowable(new ThrowableAssert.ThrowingCallable() {
        @Override
        public void call() throws Throwable {
            secpw.serializeAsField(new Object(), mock(JsonGenerator.class), mock(SerializerProvider.class));
        }
    });

    // then
    // We expect a NPE because mocking a base BeanPropertyWriter is incredibly difficult and not worth the effort.
    assertThat(ex).isInstanceOf(NullPointerException.class);
}
 

public BooleanMethodPropertyWriter(BeanPropertyWriter src, BeanPropertyAccessor acc, int index,
        JsonSerializer<Object> ser) {
    super(src, acc, index, ser);

    if (_suppressableValue instanceof Boolean) {
        _suppressableBoolean = ((Boolean)_suppressableValue).booleanValue();
        _suppressableSet = true;
    } else {
        _suppressableBoolean = false;
        _suppressableSet = false;
    }
}
 

@Override
public List<BeanPropertyWriter> changeProperties(SerializationConfig config,
                                                 BeanDescription beanDesc,
                                                 List<BeanPropertyWriter> beanProperties) {
    if (!Registration.class.isAssignableFrom(beanDesc.getBeanClass())) {
        return beanProperties;
    }

    beanProperties.stream()
                  .filter(beanProperty -> "metadata".equals(beanProperty.getName()))
                  .forEach(beanProperty -> beanProperty.assignSerializer(metadataSerializer));
    return beanProperties;
}
 

/**
 * Attempt to remove bean property from bean properties list
 *
 * @param beanDesc       bean description
 * @param beanProperties list of bean properties
 */
private void removeFields(BeanDescription beanDesc, List<BeanPropertyWriter> beanProperties) {
    /*
     * Try to remove fields of specified class
     */
    removeFieldsByClass(beanDesc.getType().getRawClass(), beanProperties);

    /*
     * Try to remove fields with not specified class
     */
    removeFieldsByClass(null, beanProperties);
    removeFieldsByClass(void.class, beanProperties);
}
 

public static BeanPropertyWriter constructViewBased(BeanPropertyWriter base, Class<?>[] viewsToIncludeIn)
{
    if (viewsToIncludeIn.length == 1) {
        return new SingleView(base, viewsToIncludeIn[0]);
    }
    return new MultiView(base, viewsToIncludeIn);
}
 

/**
 * Search matches of field name in ignoreList and bean properties list
 * If match is found then bean property will be removed from list
 *
 * @param clazz          class
 * @param beanProperties list of bean properties
 */
private void removeFieldsByClass(Class clazz, List<BeanPropertyWriter> beanProperties) {
    List<String> ignores = filterFields.getFields(clazz);

    if (!ignores.isEmpty())
        if (filterFields.getFilterBehaviour() == HIDE_FIELDS) {
            beanProperties.removeIf(beanProperty -> ignores.contains(beanProperty.getName()));
        } else
            beanProperties.removeIf(beanProperty -> !ignores.contains(beanProperty.getName()));
}
 

@Override
 public List<BeanPropertyWriter> changeProperties(
         SerializationConfig config, BeanDescription beanDesc,
         List<BeanPropertyWriter> beanProperties) {
     // 循环所有的beanPropertyWriter
     beanProperties.forEach(writer -> {
// 如果已经有 null 序列化处理如注解：@JsonSerialize(nullsUsing = xxx) 跳过
if (writer.hasNullSerializer()) {
	return;
}
         JavaType type = writer.getType();
         Class<?> clazz = type.getRawClass();
         if (type.isTypeOrSubTypeOf(Number.class)) {
             writer.assignNullSerializer(NullJsonSerializers.NUMBER_JSON_SERIALIZER);
         }else if (type.isTypeOrSubTypeOf(Boolean.class)) {
             writer.assignNullSerializer(NullJsonSerializers.BOOLEAN_JSON_SERIALIZER);
         } else if (type.isTypeOrSubTypeOf(Character.class)) {
	writer.assignNullSerializer(NullJsonSerializers.STRING_JSON_SERIALIZER);
}  else if (type.isTypeOrSubTypeOf(String.class)) {
             writer.assignNullSerializer(NullJsonSerializers.STRING_JSON_SERIALIZER);
         } else if (type.isArrayType() || clazz.isArray() || type.isTypeOrSubTypeOf(Collection.class)) {
             writer.assignNullSerializer(NullJsonSerializers.ARRAY_JSON_SERIALIZER);
         } else if (type.isTypeOrSubTypeOf(OffsetDateTime.class)) {
             writer.assignNullSerializer(NullJsonSerializers.STRING_JSON_SERIALIZER);
         } else if (type.isTypeOrSubTypeOf(Date.class) || type.isTypeOrSubTypeOf(TemporalAccessor.class)) {
             writer.assignNullSerializer(NullJsonSerializers.STRING_JSON_SERIALIZER);
         } else {
             writer.assignNullSerializer(NullJsonSerializers.OBJECT_JSON_SERIALIZER);
         }
     });
     return super.changeProperties(config, beanDesc, beanProperties);
 }
 

private boolean hasSingleElement(SerializerProvider provider) {
    final BeanPropertyWriter[] props;
    if (_filteredProps != null && provider.getActiveView() != null) {
        props = _filteredProps;
    } else {
        props = _props;
    }
    return props.length == 1;
}
 

public BuilderAndBeanPropertiyWriters constructBeanSerializerBuilder(JavaType type) {
  BeanDescription beanDesc = serializerProvider.getConfig().introspect(type);
  BeanSerializerBuilder builder = new BeanSerializerBuilder(beanDesc);
  BeanPropertyWriter[] properties;

  try {
    properties = serializerFactory.findBeanProperties(serializerProvider, beanDesc, builder).toArray(new BeanPropertyWriter[0]);
  } catch (JsonMappingException e) {
    throw new RuntimeException("Unexpected exception", e);
  }

  return new BuilderAndBeanPropertiyWriters(builder, properties);
}
 

private PropertyWriter filter(PropertyWriter writer) {
  if (!transform) {
    return writer;
  }

  SentinelSecure secure = writer.getAnnotation(SentinelSecure.class);
  if (secure == null || secure.value() == null || secure.value().isEmpty()) {
    return writer;
  }

  return new SensitivePropertyWriter((BeanPropertyWriter) writer, secure.value());
}
 

@Override
public List<BeanPropertyWriter> changeProperties(SerializationConfig config, BeanDescription beanDesc, List<BeanPropertyWriter> props)
{
    for (int i = 0, len = props.size(); i < len; ++i) {
        BeanPropertyWriter w = props.get(i);
        if (Integer.class.isAssignableFrom(w.getType().getRawClass())) {
            props.set(i, new Only2BeanPropertyWriter(w));
        }
    }
    return props;
}
 

@Override
public List<BeanPropertyWriter> changeProperties(SerializationConfig config,
        BeanDescription beanDesc,
        List<BeanPropertyWriter> beanProperties)
{
    for (int i = 0; i < beanProperties.size(); ++i) {
        final BeanPropertyWriter writer = beanProperties.get(i);
        if (Optional.class.isAssignableFrom(writer.getType().getRawClass())) {
            beanProperties.set(i, new GuavaOptionalBeanPropertyWriter(writer));
        }
    }
    return beanProperties;
}
 

@Override
public List<BeanPropertyWriter> changeProperties(SerializationConfig config, BeanDescription beanDesc,
		List<BeanPropertyWriter> beanProperties) {
	if (!Registration.class.isAssignableFrom(beanDesc.getBeanClass())) {
		return beanProperties;
	}

	beanProperties.stream().filter((beanProperty) -> "metadata".equals(beanProperty.getName()))
			.forEach((beanProperty) -> beanProperty.assignSerializer(metadataSerializer));
	return beanProperties;
}
 

public DecryptingObjectMapper(
    SecretSessionManager secretSessionManager,
    Profile profile,
    Path decryptedOutputDirectory,
    boolean decryptAllSecrets) {
  super();
  this.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, true);
  this.setSerializationInclusion(JsonInclude.Include.NON_NULL);

  this.secretSessionManager = secretSessionManager;
  this.profile = profile;
  this.decryptedOutputDirectory = decryptedOutputDirectory;
  this.decryptAllSecrets = decryptAllSecrets;

  SimpleModule module = new SimpleModule();
  module.setSerializerModifier(
      new BeanSerializerModifier() {

        @Override
        public List<BeanPropertyWriter> changeProperties(
            SerializationConfig config,
            BeanDescription beanDesc,
            List<BeanPropertyWriter> beanProperties) {
          for (BeanPropertyWriter bpw : beanProperties) {
            Secret secret = bpw.getAnnotation(Secret.class);
            if (secret != null && (decryptAllSecrets || secret.alwaysDecrypt())) {
              bpw.assignSerializer(getSecretSerializer());
            }
            SecretFile secretFile = bpw.getAnnotation(SecretFile.class);
            if (secretFile != null) {
              boolean shouldDecrypt = (decryptAllSecrets || secretFile.alwaysDecrypt());
              bpw.assignSerializer(getSecretFileSerializer(bpw, secretFile, shouldDecrypt));
            }
          }
          return beanProperties;
        }
      });
  this.registerModule(module);
}
 

public BooleanFieldPropertyWriter(BeanPropertyWriter src, BeanPropertyAccessor acc, int index,
        JsonSerializer<Object> ser) {
    super(src, acc, index, ser);

    if (_suppressableValue instanceof Boolean) {
        _suppressableBoolean = ((Boolean)_suppressableValue).booleanValue();
        _suppressableSet = true;
    } else {
        _suppressableBoolean = false;
        _suppressableSet = false;
    }
}
 

protected OptimizedBeanPropertyWriter(BeanPropertyWriter src,
        BeanPropertyAccessor propertyAccessor, int propertyIndex,
        JsonSerializer<Object> ser)
{
    super(src);
    this.fallbackWriter = unwrapFallbackWriter(src);
    // either use the passed on serializer or the original one
    _serializer = (ser != null) ? ser : src.getSerializer();
    _propertyAccessor = propertyAccessor;
    _propertyIndex = propertyIndex;
    _fastName = src.getSerializedName();
}
 

public IntMethodPropertyWriter(BeanPropertyWriter src, BeanPropertyAccessor acc, int index,
        JsonSerializer<Object> ser) {
    super(src, acc, index, ser);

    if (_suppressableValue instanceof Integer) {
        _suppressableInt = (Integer)_suppressableValue;
        _suppressableIntSet = true;
    } else {
        _suppressableInt = 0;
        _suppressableIntSet = false;
    }
}
 

public IntFieldPropertyWriter(BeanPropertyWriter src, BeanPropertyAccessor acc, int index,
        JsonSerializer<Object> ser) {
    super(src, acc, index, ser);

    if (_suppressableValue instanceof Integer) {
        _suppressableInt = ((Integer)_suppressableValue).intValue();
        _suppressableSet = true;
    } else {
        _suppressableInt = 0;
        _suppressableSet = false;
    }
}
 

public LongMethodPropertyWriter(BeanPropertyWriter src, BeanPropertyAccessor acc, int index,
        JsonSerializer<Object> ser) {
    super(src, acc, index, ser);

    if (_suppressableValue instanceof Long) {
        _suppressableLong = (Long)_suppressableValue;
        _suppressableSet = true;
    } else {
        _suppressableLong = 0L;
        _suppressableSet = false;
    }
}
 

public LongFieldPropertyWriter(BeanPropertyWriter src, BeanPropertyAccessor acc, int index,
        JsonSerializer<Object> ser) {
    super(src, acc, index, ser);

    if (_suppressableValue instanceof Long) {
        _suppressableLong = (Long)_suppressableValue;
        _suppressableSet = true;
    } else {
        _suppressableLong = 0L;
        _suppressableSet = false;
    }
}
 

@Override
public List<BeanPropertyWriter> changeProperties(final SerializationConfig config, final BeanDescription beanDesc, final List<BeanPropertyWriter> beanProperties) {
    for (int i = 0; i < beanProperties.size(); i++) {
        final BeanPropertyWriter beanPropertyWriter = beanProperties.get(i);
        if (beanPropertyWriter.getName() == "name") {
            beanProperties.set(i, new UpperCasingWriter(beanPropertyWriter));
        }
    }
    return beanProperties;
}
 

public StringFieldPropertyWriter(BeanPropertyWriter src, BeanPropertyAccessor acc, int index,
        JsonSerializer<Object> ser) {
    super(src, acc, index, ser);
}
 

public UnwrappingBeanPropertyWriter(BeanPropertyWriter base, NameTransformer unwrapper) {
    super(base);
    _nameTransformer = unwrapper;
}
 

@Override
public BeanPropertyWriter withSerializer(JsonSerializer<Object> ser) {
    return new StringMethodPropertyWriter(this, _propertyAccessor, _propertyIndex, ser);
}
 

@Override
protected BeanPropertyWriter _new(PropertyName newName) {
    return new StringMethodPropertyWriter(this, newName);
}