Example usage for com.fasterxml.jackson.core JsonParser readValueAs

List of usage examples for com.fasterxml.jackson.core JsonParser readValueAs

  1. HOME
  2. Java
  3. com.fasterxml
  4. com.fasterxml.jackson.core.*
  5. JsonParser
  6. readValueAs

Introduction

In this page you can find the example usage for com.fasterxml.jackson.core JsonParser readValueAs.

Prototype

@SuppressWarnings("unchecked")
public <T> T readValueAs(TypeReference<?> valueTypeRef) throws IOException, JsonProcessingException

Source Link

Document

Method to deserialize JSON content into a Java type, reference to which is passed as argument.

Usage

From source file:org.springframework.social.facebook.api.impl.json.MessageTagMapDeserializer.java

@SuppressWarnings("unchecked")
@Override//  w  w w  . j  a  v a2 s  . c  o m
public Map<Integer, List<MessageTag>> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new FacebookModule());
    jp.setCodec(mapper);
    if (jp.hasCurrentToken()) {
        JsonNode dataNode = jp.readValueAs(JsonNode.class);
        if (dataNode != null) {
            return (Map<Integer, List<MessageTag>>) mapper
                    .reader(new TypeReference<Map<Integer, List<MessageTag>>>() {
                    }).readValue(dataNode);
        }
    }

    return Collections.emptyMap();
}

From source file:org.springframework.social.facebook.api.impl.json.StoryTagMapDeserializer.java

@SuppressWarnings("unchecked")
@Override//from w w w .j a  v a 2  s . co m
public Map<Integer, List<StoryTag>> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new FacebookModule());
    jp.setCodec(mapper);
    if (jp.hasCurrentToken()) {
        JsonNode dataNode = jp.readValueAs(JsonNode.class);
        if (dataNode != null) {
            return (Map<Integer, List<StoryTag>>) mapper
                    .reader(new TypeReference<Map<Integer, List<StoryTag>>>() {
                    }).readValue(dataNode);
        }
    }

    return Collections.emptyMap();
}

From source file:eu.trentorise.opendata.commons.jackson.OdtCommonsModule.java

/**
 * Creates the module and registers all the needed serializers and
 * deserializers for Odt Commons objects
 *//* w  w  w . j  a  v a  2s  .c  o m*/
public OdtCommonsModule() {
    super("odt-commons-jackson", readJacksonVersion(OdtCommonsModule.class));

    addSerializer(Dict.class, new StdSerializer<Dict>(Dict.class) {
        @Override
        public void serialize(Dict value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
            jgen.writeObject(value.asMultimap());
        }
    });

    addDeserializer(Dict.class, new StdDeserializer<Dict>(Dict.class) {

        @Override
        public Dict deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
            TypeReference ref = new TypeReference<ImmutableListMultimap<Locale, String>>() {
            };
            return Dict.of((ImmutableListMultimap) jp.readValueAs(ref));
        }
    });

    setMixInAnnotation(LocalizedString.class, JacksonLocalizedString.class);

}

From source file:org.agorava.linkedin.jackson.ConnectionAuthorizationDeserializer.java

@Override
public ConnectionAuthorization deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = BeanResolver.getInstance().resolve(ObjectMapper.class);
    if (jp.hasCurrentToken() && jp.getCurrentToken().equals(JsonToken.START_OBJECT)) {
        JsonNode dataNode = jp.readValueAs(JsonNode.class).get("headers").get("values").get(0);
        if (dataNode != null) {
            return mapper.reader(new TypeReference<ConnectionAuthorization>() {
            }).readValue(dataNode);/*from w  w w  .j  ava  2s.co m*/
        }
    }
    throw ctxt.mappingException("Expected JSON object");
}

From source file:org.springframework.social.facebook.api.impl.json.ReferenceListAndCountDeserializer.java

@SuppressWarnings("unchecked")
@Override//from  w  w w.j  av a2 s.c  o m
public ListAndCount<Reference> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new FacebookModule());
    jp.setCodec(mapper);
    if (jp.hasCurrentToken()) {
        JsonNode node = jp.readValueAs(JsonNode.class);
        JsonNode dataNode = node.get("data");
        List<Reference> commentsList = dataNode != null
                ? (List<Reference>) mapper.reader(new TypeReference<List<Reference>>() {
                }).readValue(dataNode)
                : Collections.<Reference>emptyList();
        JsonNode countNode = node.get("count");
        int referenceCount = countNode != null ? countNode.intValue() : 0;
        return new ListAndCount<Reference>(commentsList, referenceCount);
    }

    return null;
}

From source file:org.springframework.social.facebook.api.impl.json.TagListDeserializer.java

@SuppressWarnings("unchecked")
@Override/*ww  w  .  ja  v  a 2s .c  o  m*/
public List<Tag> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new FacebookModule());
    jp.setCodec(mapper);
    if (jp.hasCurrentToken()) {
        JsonNode dataNode = (JsonNode) jp.readValueAs(JsonNode.class).get("data");
        return (List<Tag>) mapper.reader(new TypeReference<List<Tag>>() {
        }).readValue(dataNode);
    }

    return null;
}

From source file:org.springframework.social.linkedin.api.impl.json.LikesListDeserializer.java

@Override
public List<LinkedInProfile> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new LinkedInModule());
    jp.setCodec(mapper);/*from w  w  w .  jav  a2s  . c om*/
    if (jp.hasCurrentToken()) {
        JsonNode dataNode = jp.readValueAs(JsonNode.class).get("values");
        List<LinkedInProfile> likes = new ArrayList<LinkedInProfile>();
        // Have to iterate through list due to person sub object.
        for (JsonNode like : dataNode) {
            LinkedInProfile profile = mapper.reader(new TypeReference<LinkedInProfile>() {
            }).readValue(like.get("person"));
            likes.add(profile);
        }
        return likes;
    }

    return null;
}

From source file:org.springframework.social.facebook.api.impl.json.ReferenceListDeserializer.java

@SuppressWarnings("unchecked")
@Override//from  ww w.  j av  a  2s. c  o m
public List<Reference> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new FacebookModule());
    jp.setCodec(mapper);
    if (jp.hasCurrentToken()) {
        JsonNode dataNode = (JsonNode) jp.readValueAs(JsonNode.class).get("data");
        if (dataNode != null) {
            return (List<Reference>) mapper.reader(new TypeReference<List<Reference>>() {
            }).readValue(dataNode);
        }
    }

    return Collections.emptyList();
}

From source file:org.rapidoid.db.impl.inmem.JacksonEntitySerializer.java

@SuppressWarnings("rawtypes")
private void initDbMapper() {
    SimpleModule dbModule = new SimpleModule("DbModule", new Version(1, 0, 0, null, null, null));

    dbModule.addDeserializer(DbList.class, new JsonDeserializer<DbList>() {
        @SuppressWarnings("unchecked")
        @Override/*from   w  w w . j a  v  a  2s. c  o m*/
        public DbList deserialize(JsonParser jp, DeserializationContext ctxt)
                throws IOException, JsonProcessingException {
            Map<String, Object> data = jp.readValueAs(Map.class);
            String relation = (String) data.get("relation");
            List<? extends Number> ids = (List<Number>) data.get("ids");
            return new InMemDbList(db, null, relation, ids);
        }
    });

    dbModule.addDeserializer(DbSet.class, new JsonDeserializer<DbSet>() {
        @SuppressWarnings("unchecked")
        @Override
        public DbSet deserialize(JsonParser jp, DeserializationContext ctxt)
                throws IOException, JsonProcessingException {
            Map<String, Object> data = jp.readValueAs(Map.class);
            String relation = (String) data.get("relation");
            List<? extends Number> ids = (List<Number>) data.get("ids");
            return new InMemDbSet(db, null, relation, ids);
        }
    });

    dbModule.addDeserializer(DbRef.class, new JsonDeserializer<DbRef>() {
        @SuppressWarnings("unchecked")
        @Override
        public DbRef deserialize(JsonParser jp, DeserializationContext ctxt)
                throws IOException, JsonProcessingException {
            Map<String, Object> data = jp.readValueAs(Map.class);
            String relation = (String) data.get("relation");
            List<? extends Number> ids = (List<Number>) data.get("ids");
            U.must(ids.size() <= 1, "Expected 0 or 1 IDs!");
            long id = !ids.isEmpty() ? ids.get(0).longValue() : -1;
            return new InMemDbRef(db, null, relation, id);
        }
    });

    mapper.registerModule(dbModule);

    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
}

From source file:org.springframework.social.facebook.api.impl.json.CommentListAndCountDeserializer.java

@SuppressWarnings("unchecked")
@Override// w w  w. j ava 2 s  . com
public ListAndCount<Comment> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new FacebookModule());
    jp.setCodec(mapper);
    if (jp.hasCurrentToken()) {
        JsonNode commentsNode = jp.readValueAs(JsonNode.class);
        JsonNode dataNode = commentsNode.get("data");
        List<Comment> commentsList = dataNode != null
                ? (List<Comment>) mapper.reader(new TypeReference<List<Comment>>() {
                }).readValue(dataNode)
                : Collections.<Comment>emptyList();
        JsonNode countNode = commentsNode.get("count");
        int commentCount = countNode != null ? countNode.intValue() : 0;
        return new ListAndCount<Comment>(commentsList, commentCount);
    }

    return null;
}