Example usage for com.fasterxml.jackson.databind JsonDeserializer deserialize

List of usage examples for com.fasterxml.jackson.databind JsonDeserializer deserialize

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Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind JsonDeserializer deserialize.

Prototype

public abstract T deserialize(JsonParser paramJsonParser, DeserializationContext paramDeserializationContext);

Source Link

Usage

From source file:javaslang.jackson.datatype.deserialize.SerializableDeserializer.java

@Override
public T deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
    JsonDeserializer<Object> deserializer = ctxt.findRootValueDeserializer(ctxt.constructType(byte[].class));
    byte[] bytes = (byte[]) deserializer.deserialize(p, ctxt);
    return deserialize(bytes);
}

From source file:javaslang.jackson.datatype.deserialize.EitherDeserializer.java

@Override
public Either<?, ?> deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
    boolean right = false;
    Object value = null;//  ww  w.j  a  v  a2 s .  c o  m
    int cnt = 0;

    for (JsonToken jsonToken = p.nextToken(); jsonToken != END_ARRAY; jsonToken = p.nextToken()) {
        cnt++;
        switch (cnt) {
        case 1:
            String def = (String) stringDeserializer.deserialize(p, ctxt);
            if ("right".equals(def)) {
                right = true;
            } else if ("left".equals(def)) {
                right = false;
            } else {
                throw ctxt.mappingException(javaType.getRawClass());
            }
            break;
        case 2:
            JsonDeserializer<?> deserializer = right ? deserializer(1) : deserializer(0);
            value = (jsonToken != VALUE_NULL) ? deserializer.deserialize(p, ctxt)
                    : deserializer.getNullValue(ctxt);
            break;
        }
    }
    if (cnt != 2) {
        throw ctxt.mappingException(javaType.getRawClass());
    }
    return right ? Either.right(value) : Either.left(value);
}

From source file:javaslang.jackson.datatype.deserialize.TupleDeserializer.java

@Override
public Tuple deserialize(JsonParser p, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    List<Object> list = new ArrayList<>();
    int ptr = 0;/* w  w  w  .jav  a  2 s .  co m*/

    for (JsonToken jsonToken = p.nextToken(); jsonToken != END_ARRAY; jsonToken = p.nextToken()) {
        if (ptr >= deserializersCount()) {
            throw ctxt.mappingException(javaType.getRawClass());
        }
        JsonDeserializer<?> deserializer = deserializer(ptr++);
        Object value = (jsonToken != VALUE_NULL) ? deserializer.deserialize(p, ctxt)
                : deserializer.getNullValue(ctxt);
        list.add(value);
    }
    return create(list, ctxt);
}

From source file:net.nullschool.grains.jackson.datatype.AbstractBasicConstCollectionDeserializer.java

@Override
public T deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
    JsonToken token = jp.getCurrentToken();
    if (token != JsonToken.START_ARRAY) {
        throw ctxt.mappingException(collectionType.getRawClass());
    }// w w  w.  j a v  a  2s.co  m

    if ((token = jp.nextToken()) == JsonToken.END_ARRAY) {
        return emptyResult();
    }

    JsonDeserializer<?> ed = elementDeserializer;
    TypeDeserializer etd = elementTypeDeserializer;

    List<Object> elements = null;
    Object element;
    do {
        element = token != JsonToken.VALUE_NULL
                ? etd == null ? ed.deserialize(jp, ctxt) : ed.deserializeWithType(jp, ctxt, etd)
                : null;

        token = jp.nextToken();
        if (elements == null) {
            if (token == JsonToken.END_ARRAY) {
                return resultOf(element);
            }
            elements = new ArrayList<>();
        }
        elements.add(element);
    } while (token != JsonToken.END_ARRAY);

    return asResult(elements);
}

From source file:javaslang.jackson.datatype.deserialize.ArrayDeserializer.java

@Override
public T deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
    JsonDeserializer<?> deserializer = deserializer(0);
    List<Object> list = new ArrayList<>();
    if (!p.isExpectedStartArrayToken()) {
        throw ctxt.mappingException(valueType.getRawClass());
    }//from  w w w. jav a  2 s .  c o m
    for (JsonToken jsonToken = p.nextToken(); jsonToken != END_ARRAY; jsonToken = p.nextToken()) {
        Object value = (jsonToken != VALUE_NULL) ? deserializer.deserialize(p, ctxt)
                : deserializer.getNullValue(ctxt);
        list.add(value);
    }
    return create(list, ctxt);
}

From source file:org.emfjson.jackson.databind.deser.ResourceDeserializer.java

@Override
public Resource deserialize(JsonParser jp, DeserializationContext ctxt, Resource intoValue) throws IOException {
    final Resource resource = getResource(ctxt, intoValue);
    if (resource == null) {
        throw new IllegalArgumentException("Invalid resource");
    }//from w  ww  .  j  av  a  2s. c  o  m

    final ReferenceEntries entries = new ReferenceEntries();
    final EcoreTypeFactory ecoreType = new EcoreTypeFactory();
    final ResourceSet resourceSet = resource.getResourceSet();

    ctxt.setAttribute(RESOURCE, resource);
    ctxt.setAttribute(REFERENCE_ENTRIES, entries);
    ctxt.setAttribute(CACHE, new Cache());
    ctxt.setAttribute(TYPE_FACTORY, ecoreType);
    ctxt.setAttribute(RESOURCE_SET, resourceSet);

    if (!jp.hasCurrentToken()) {
        jp.nextToken();
    }

    final TypeFactory factory = TypeFactory.defaultInstance();
    final JsonDeserializer<Object> deserializer = ctxt
            .findRootValueDeserializer(factory.constructType(EObject.class));

    if (jp.getCurrentToken() == JsonToken.START_ARRAY) {

        while (jp.nextToken() != JsonToken.END_ARRAY) {

            EObject value = (EObject) deserializer.deserialize(jp, ctxt);
            if (value != null) {
                resource.getContents().add(value);
            }
        }

    } else if (jp.getCurrentToken() == JsonToken.START_OBJECT) {
        EObject value = (EObject) deserializer.deserialize(jp, ctxt);
        if (value != null) {
            resource.getContents().add(value);
        }
    }

    entries.resolve(resourceSet, uriHandler);

    return resource;
}

From source file:net.nullschool.grains.jackson.datatype.AbstractBasicConstMapDeserializer.java

@Override
public T deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
    JsonToken token = jp.getCurrentToken();
    if (token == JsonToken.START_OBJECT) {
        token = jp.nextToken();//from  ww w.  j  a v  a  2 s.  c om
    } else if (token != JsonToken.FIELD_NAME) {
        throw ctxt.mappingException(mapType.getRawClass());
    }

    if (token == JsonToken.END_OBJECT) {
        return emptyResult();
    }

    KeyDeserializer kd = keyDeserializer;
    JsonDeserializer<?> vd = valueDeserializer;
    TypeDeserializer vtd = valueTypeDeserializer;

    List<Object> keys = null;
    List<Object> values = null;
    Object key;
    Object value;
    do {
        String name = jp.getCurrentName();
        key = kd == null ? name : kd.deserializeKey(name, ctxt);
        value = jp.nextToken() != JsonToken.VALUE_NULL
                ? vtd == null ? vd.deserialize(jp, ctxt) : vd.deserializeWithType(jp, ctxt, vtd)
                : null;

        token = jp.nextToken();
        if (keys == null) {
            if (token == JsonToken.END_OBJECT) {
                return resultOf(key, value);
            }
            keys = new ArrayList<>();
            values = new ArrayList<>();
        }
        keys.add(key);
        values.add(value);
    } while (token != JsonToken.END_OBJECT);

    return asResult(keys, values);
}

From source file:com.addthis.codec.jackson.CodecTypeDeserializer.java

@Nullable
private Object _deserializeTypedFromArray(ArrayNode arrayNode, ObjectCodec objectCodec,
        DeserializationContext ctxt) throws IOException {
    if (idRes.isValidTypeId("_array")) {
        Config aliasDefaults = pluginMap.aliasDefaults("_array").toConfig();
        String arrayField = aliasDefaults.getString("_primary");
        try {//w ww  . j  a  va  2 s. c  o m
            ObjectNode objectFieldValues = (ObjectNode) objectCodec.createObjectNode();
            Jackson.setAt(objectFieldValues, arrayNode, arrayField);
            ObjectNode aliasFieldDefaults = Jackson.configConverter(aliasDefaults.root());
            Jackson.merge(objectFieldValues, aliasFieldDefaults);
            JsonDeserializer<Object> deser = _findDeserializer(ctxt, "_array");
            JsonParser treeParser = objectCodec.treeAsTokens(objectFieldValues);
            treeParser.nextToken();
            return deser.deserialize(treeParser, ctxt);
        } catch (IOException ex) {
            throw Jackson.maybeUnwrapPath(arrayField, ex);
        }
    } else {
        return null;
    }
}

From source file:com.arpnetworking.jackson.BuilderDeserializerTest.java

@Test
public void testWithoutNull() throws IOException {
    final TestFooBeanInterface expectedBean = TestFooBeanImpl.Builder.newInstance()
            .setFieldString(UUID.randomUUID().toString()).setFieldBoolean(Boolean.TRUE)
            .setFieldPrimitive(RANDOM_GENERATOR.nextInt()).setFieldBooleanPrimitive(false).build();

    final String jsonString = "{\"fieldString\":\"" + expectedBean.getFieldString() + "\""
            + ", \"fieldBoolean\":" + expectedBean.isFieldBoolean() + ", \"fieldPrimitive\":"
            + expectedBean.getFieldPrimitive() + ", \"fieldBooleanPrimitive\":"
            + expectedBean.isFieldBooleanPrimitive() + "}";

    final JsonFactory jsonFactory = new JsonFactory(new ObjectMapper());
    try (final JsonParser jsonParser = jsonFactory.createParser(jsonString)) {
        final JsonDeserializer<? extends TestFooBeanInterface> deserializer = BuilderDeserializer
                .of(TestFooBeanImpl.Builder.class);
        final TestFooBeanInterface actualBean = deserializer.deserialize(jsonParser, null);
        Assert.assertEquals(expectedBean, actualBean);
    }//from www  .ja  v a2s.  c o m
}

From source file:com.arpnetworking.jackson.BuilderDeserializerTest.java

@Test
public void testWithNull() throws IOException {
    final TestFooBeanInterface expectedBean = TestFooBeanImpl.Builder.newInstance()
            .setFieldString(UUID.randomUUID().toString()).setFieldBoolean(Boolean.TRUE)
            .setFieldPrimitive(RANDOM_GENERATOR.nextInt()).setFieldBooleanPrimitive(false).setFieldNull(null)
            .build();//from   ww  w  .  j a va2s  .  co  m

    final String jsonString = "{\"fieldString\":\"" + expectedBean.getFieldString() + "\""
            + ", \"fieldBoolean\":" + expectedBean.isFieldBoolean() + ", \"fieldPrimitive\":"
            + expectedBean.getFieldPrimitive() + ", \"fieldBooleanPrimitive\":"
            + expectedBean.isFieldBooleanPrimitive() + ", \"fieldNull\":" + expectedBean.getFieldNull() + "}";

    final JsonFactory jsonFactory = new JsonFactory(new ObjectMapper());
    try (final JsonParser jsonParser = jsonFactory.createParser(jsonString)) {
        final JsonDeserializer<? extends TestFooBeanInterface> deserializer = BuilderDeserializer
                .of(TestFooBeanImpl.Builder.class);
        final TestFooBeanInterface actualBean = deserializer.deserialize(jsonParser, null);
        Assert.assertEquals(expectedBean, actualBean);
    }
}