Example usage for com.fasterxml.jackson.databind ObjectMapper reader

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind ObjectMapper reader.

Prototype

public ObjectReader reader(ContextAttributes attrs) 

Source Link

Document

Factory method for constructing ObjectReader that will use specified default attributes.

Usage

From source file:org.agorava.facebook.jackson.ReferenceListDeserializer.java

@SuppressWarnings("unchecked")
@Override/*w w  w.  j av  a  2 s  . com*/
public List<Reference> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = getInstance().resolve(ObjectMapper.class);
    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();
}

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From source file:logfile.LogfileStreamer.java

public void run() throws Exception {
    startElasticsearchIfNecessary();//from   ww  w . j a va 2s.  c o  m
    createIndexAndMappingIfNecessary();

    // index into the metrics index without date formatting
    ElasticsearchReporter reporter = ElasticsearchReporter.forRegistry(registry).hosts("localhost:9200")
            .indexDateFormat("").percolationNotifier(new HttpNotifier()).percolationFilter(MetricFilter.ALL)
            .build();
    reporter.start(60, TimeUnit.SECONDS);

    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
    ObjectReader reader = objectMapper.reader(Map.class);
    MappingIterator<Map<String, Object>> iterator = reader.readValues(getInputStream());

    try {
        while (iterator.hasNextValue()) {
            Map<String, Object> entry = iterator.nextValue();
            if (entry.containsKey("_heartbeat_")) {
                heartbeatCounter.inc();
                continue;
            }

            if (entry.containsKey("ll") && entry.containsKey("t")) {
                long timestamp = ((Integer) entry.get("t")).longValue();
                List<Number> location = (List<Number>) entry.get("ll");
                double latitude = location.get(0).doubleValue();
                double longitude = location.get(1).doubleValue();

                addToBulkRequest(timestamp, latitude, longitude);
                entryMeter.mark(1);
            }
        }
    } finally {
        executeBulkRequest();
    }
}

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

@SuppressWarnings("unchecked")
@Override/* www.  j  a  v a 2  s  .  c  o 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:org.springframework.social.facebook.api.impl.json.MessageTagMapDeserializer.java

@SuppressWarnings("unchecked")
@Override//from  www .j ava  2s.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.ReferenceListDeserializer.java

@SuppressWarnings("unchecked")
@Override/*from ww w .  j a  v a 2  s  . 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.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.  jav a  2  s  . com
        }
    }
    throw ctxt.mappingException("Expected JSON object");
}

---

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

public ConnectionAuthorization deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new LinkedInModule());
    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 ww . j  a v a  2 s. com*/
        }
    }
    throw ctxt.mappingException("Expected JSON object");
}

---

From source file:org.agorava.facebook.jackson.QuestionOptionListDeserializer.java

@SuppressWarnings("unchecked")
@Override// ww  w .j  a  v a  2s  .com
public List<QuestionOption> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = BeanResolver.getInstance().resolve(ObjectMapper.class);
    jp.setCodec(mapper);
    if (jp.hasCurrentToken()) {
        TreeNode dataNode = jp.readValueAs(JsonNode.class).get("data");
        if (dataNode != null) {
            // TODO: THIS PROBABLY ISN"T RIGHT
            return (List<QuestionOption>) mapper.reader(new TypeReference<List<QuestionOption>>() {
            }).readValue((JsonNode) dataNode);
        }
    }

    return null;
}

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From source file:org.agorava.facebook.jackson.ReferenceListAndCountDeserializer.java

@SuppressWarnings("unchecked")
@Override//  w ww  .  j  av a 2  s . c o m
public ListAndCount<Reference> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = getInstance().resolve(ObjectMapper.class);

    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.agorava.facebook.jackson.CommentListAndCountDeserializer.java

@SuppressWarnings("unchecked")
@Override//from w ww.  j av  a2  s. co m
public ListAndCount<Comment> deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = getInstance().resolve(ObjectMapper.class);
    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();
        return new ListAndCount<Comment>(commentsList, commentsList.size());
    }

    return null;
}

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