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

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

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Introduction

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

Prototype

public abstract ObjectCodec getCodec();

Source Link

Document

Accessor for ObjectCodec associated with this parser, if any.

Usage

From source file:org.apache.olingo.client.core.serialization.JsonPropertyDeserializer.java

protected ResWrap<Property> doDeserialize(final JsonParser parser) throws IOException {

    final ObjectNode tree = parser.getCodec().readTree(parser);

    final String metadataETag;
    final URI contextURL;
    final Property property = new Property();

    if (tree.hasNonNull(Constants.JSON_METADATA_ETAG)) {
        metadataETag = tree.get(Constants.JSON_METADATA_ETAG).textValue();
        tree.remove(Constants.JSON_METADATA_ETAG);
    } else {/*w  w w.  j  a va2s  . c o m*/
        metadataETag = null;
    }

    if (tree.hasNonNull(Constants.JSON_CONTEXT)) {
        contextURL = URI.create(tree.get(Constants.JSON_CONTEXT).textValue());
        property.setName(StringUtils.substringAfterLast(contextURL.toASCIIString(), "/"));
        tree.remove(Constants.JSON_CONTEXT);
    } else if (tree.hasNonNull(Constants.JSON_METADATA)) {
        contextURL = URI.create(tree.get(Constants.JSON_METADATA).textValue());
        property.setType(new EdmTypeInfo.Builder()
                .setTypeExpression(StringUtils.substringAfterLast(contextURL.toASCIIString(), "#")).build()
                .internal());
        tree.remove(Constants.JSON_METADATA);
    } else {
        contextURL = null;
    }

    if (tree.has(Constants.JSON_TYPE)) {
        property.setType(new EdmTypeInfo.Builder().setTypeExpression(tree.get(Constants.JSON_TYPE).textValue())
                .build().internal());
        tree.remove(Constants.JSON_TYPE);
    }

    if (tree.has(Constants.JSON_NULL) && tree.get(Constants.JSON_NULL).asBoolean()) {
        property.setValue(ValueType.PRIMITIVE, null);
        tree.remove(Constants.JSON_NULL);
    }

    if (property.getValue() == null) {
        try {
            value(property, tree.has(Constants.VALUE) ? tree.get(Constants.VALUE) : tree, parser.getCodec());
        } catch (final EdmPrimitiveTypeException e) {
            throw new IOException(e);
        }
        tree.remove(Constants.VALUE);
    }

    Set<String> toRemove = new HashSet<String>();
    // any remaining entry is supposed to be an annotation or is ignored
    for (final Iterator<Map.Entry<String, JsonNode>> itor = tree.fields(); itor.hasNext();) {
        final Map.Entry<String, JsonNode> field = itor.next();
        if (field.getKey().charAt(0) == '@') {
            final Annotation annotation = new Annotation();
            annotation.setTerm(field.getKey().substring(1));

            try {
                value(annotation, field.getValue(), parser.getCodec());
            } catch (final EdmPrimitiveTypeException e) {
                throw new IOException(e);
            }
            property.getAnnotations().add(annotation);
        } else if (field.getKey().charAt(0) == '#') {
            final Operation operation = new Operation();
            operation.setMetadataAnchor(field.getKey());

            final ObjectNode opNode = (ObjectNode) tree.get(field.getKey());
            operation.setTitle(opNode.get(Constants.ATTR_TITLE).asText());
            operation.setTarget(URI.create(opNode.get(Constants.ATTR_TARGET).asText()));
            property.getOperations().add(operation);
            toRemove.add(field.getKey());
        }
    }
    tree.remove(toRemove);
    return new ResWrap<Property>(contextURL, metadataETag, property);
}

From source file:org.apache.nifi.registry.client.impl.BucketItemDeserializer.java

@Override
public BucketItem[] deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
        throws IOException, JsonProcessingException {
    final JsonNode arrayNode = jsonParser.getCodec().readTree(jsonParser);

    final List<BucketItem> bucketItems = new ArrayList<>();

    final Iterator<JsonNode> nodeIter = arrayNode.elements();
    while (nodeIter.hasNext()) {
        final JsonNode node = nodeIter.next();

        final String type = node.get("type").asText();
        if (StringUtils.isBlank(type)) {
            throw new IllegalStateException("BucketItem type cannot be null or blank");
        }//  w w  w .  j av a 2  s. co m

        final BucketItemType bucketItemType;
        try {
            bucketItemType = BucketItemType.valueOf(type);
        } catch (Exception e) {
            throw new IllegalStateException("Unknown type for BucketItem: " + type, e);
        }

        switch (bucketItemType) {
        case Flow:
            final VersionedFlow versionedFlow = jsonParser.getCodec().treeToValue(node, VersionedFlow.class);
            bucketItems.add(versionedFlow);
            break;
        case Extension_Bundle:
            final ExtensionBundle extensionBundle = jsonParser.getCodec().treeToValue(node,
                    ExtensionBundle.class);
            bucketItems.add(extensionBundle);
            break;
        default:
            throw new IllegalStateException("Unknown type for BucketItem: " + bucketItemType);
        }
    }

    return bucketItems.toArray(new BucketItem[bucketItems.size()]);
}

From source file:com.youtube.serializer.YoutubeVideoDeserializer.java

/**
 * Because the Youtube Video object contains complex objects within its hierarchy, we have to use
 * a custom deserializer//from   w  ww .jav a 2  s  . co m
 *
 * @param jsonParser
 * @param deserializationContext
 * @return The deserialized {@link com.google.api.services.youtube.YouTube.Videos} object
 * @throws java.io.IOException
 * @throws com.fasterxml.jackson.core.JsonProcessingException
 */
@Override
public Video deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
        throws IOException, JsonProcessingException {
    JsonNode node = jsonParser.getCodec().readTree(jsonParser);
    Video video = new Video();

    try {
        video.setId(node.get("id").asText());
        video.setEtag(node.get("etag").asText());
        video.setKind(node.get("kind").asText());

        video.setSnippet(buildSnippet(node));
        video.setStatistics(buildStatistics(node));
    } catch (Exception e) {
        LOGGER.error("Exception while trying to deserialize a Video object: {}", e);
    }

    return video;
}

From source file:org.apache.olingo.commons.core.serialization.JsonEntitySetDeserializer.java

protected ResWrap<EntitySet> doDeserialize(final JsonParser parser) throws IOException {

    final ObjectNode tree = (ObjectNode) parser.getCodec().readTree(parser);

    if (!tree.has(Constants.VALUE)) {
        return null;
    }//from  w w w  .  j  ava 2  s.c o m

    final EntitySetImpl entitySet = new EntitySetImpl();

    URI contextURL;
    if (tree.hasNonNull(Constants.JSON_CONTEXT)) {
        contextURL = URI.create(tree.get(Constants.JSON_CONTEXT).textValue());
        tree.remove(Constants.JSON_CONTEXT);
    } else if (tree.hasNonNull(Constants.JSON_METADATA)) {
        contextURL = URI.create(tree.get(Constants.JSON_METADATA).textValue());
        tree.remove(Constants.JSON_METADATA);
    } else {
        contextURL = null;
    }
    if (contextURL != null) {
        entitySet.setBaseURI(StringUtils.substringBefore(contextURL.toASCIIString(), Constants.METADATA));
    }

    final String metadataETag;
    if (tree.hasNonNull(Constants.JSON_METADATA_ETAG)) {
        metadataETag = tree.get(Constants.JSON_METADATA_ETAG).textValue();
        tree.remove(Constants.JSON_METADATA_ETAG);
    } else {
        metadataETag = null;
    }

    if (tree.hasNonNull(jsonCount)) {
        entitySet.setCount(tree.get(jsonCount).asInt());
        tree.remove(jsonCount);
    }
    if (tree.hasNonNull(jsonNextLink)) {
        entitySet.setNext(URI.create(tree.get(jsonNextLink).textValue()));
        tree.remove(jsonNextLink);
    }
    if (tree.hasNonNull(jsonDeltaLink)) {
        entitySet.setDeltaLink(URI.create(tree.get(jsonDeltaLink).textValue()));
        tree.remove(jsonDeltaLink);
    }

    if (tree.hasNonNull(Constants.VALUE)) {
        final JsonEntityDeserializer entityDeserializer = new JsonEntityDeserializer(version, serverMode);
        for (JsonNode jsonNode : tree.get(Constants.VALUE)) {
            entitySet.getEntities()
                    .add(entityDeserializer.doDeserialize(jsonNode.traverse(parser.getCodec())).getPayload());
        }
        tree.remove(Constants.VALUE);
    }

    // any remaining entry is supposed to be an annotation or is ignored
    for (final Iterator<Map.Entry<String, JsonNode>> itor = tree.fields(); itor.hasNext();) {
        final Map.Entry<String, JsonNode> field = itor.next();
        if (field.getKey().charAt(0) == '@') {
            final Annotation annotation = new AnnotationImpl();
            annotation.setTerm(field.getKey().substring(1));

            try {
                value(annotation, field.getValue(), parser.getCodec());
            } catch (final EdmPrimitiveTypeException e) {
                throw new IOException(e);
            }
            entitySet.getAnnotations().add(annotation);
        }
    }

    return new ResWrap<EntitySet>(contextURL, metadataETag, entitySet);
}

From source file:com.sample.citybikesnyc.BikeStationDeserializer.java

@Override
public Object deserialize(final JsonParser jp, final DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    final BikeStation bikeStation = new BikeStation();
    final JsonNode rootNode = jp.getCodec().readTree(jp);
    final String stationName = rootNode.get("stationName").textValue();
    bikeStation.setStationName(stationName);
    final int availableDocks = (Integer) (rootNode.get("availableDocks")).numberValue();
    bikeStation.setAvailableDocks(availableDocks);
    final int status = (Integer) (rootNode.get("status")).numberValue();
    bikeStation.setStatus(BikeStationStatus.valueOf(status));

    final ObjectNode locationNode = (ObjectNode) rootNode.get("location");
    final JavaType locationType = ctxt.constructType(Location.class);
    final JsonParser locationNodeParser = jp.getCodec().getFactory().createParser(locationNode.toString());

    final Location locationValue = (Location) ctxt.findNonContextualValueDeserializer(locationType)
            .deserialize(locationNodeParser, ctxt);
    bikeStation.setLocation(locationValue);
    return bikeStation;
}

From source file:org.mycontroller.standalone.api.jaxrs.mixins.GatewayMixin.java

@Override
public GatewayTable deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectCodec objectCodec = jp.getCodec();
    JsonNode node = objectCodec.readTree(jp);

    if (node.get("id") == null) {
        return null;
    }/*  w  w w.j ava 2  s  .  co  m*/
    return GatewayTable.builder().id(node.get("id").asInt()).build();
}

From source file:com.google.gplus.serializer.util.GPlusCommentDeserializer.java

/**
 * Because the GooglePlus Comment object {@link com.google.api.services.plus.model.Comment} contains complex objects
 * within its hierarchy, we have to use a custom deserializer
 *
 * @param jsonParser//from w ww. ja va  2  s. c  o  m
 * @param deserializationContext
 * @return The deserialized {@link com.google.api.services.plus.model.Comment} object
 * @throws java.io.IOException
 * @throws com.fasterxml.jackson.core.JsonProcessingException
 */
@Override
public Comment deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
        throws IOException, JsonProcessingException {

    JsonNode node = jsonParser.getCodec().readTree(jsonParser);
    ObjectMapper objectMapper = StreamsJacksonMapper.getInstance();
    Comment comment = new Comment();

    try {
        comment.setEtag(node.get("etag").asText());
        comment.setVerb(node.get("verb").asText());
        comment.setId(node.get("id").asText());
        comment.setPublished(DateTime.parseRfc3339(node.get("published").asText()));
        comment.setUpdated(DateTime.parseRfc3339(node.get("updated").asText()));

        Comment.Actor actor = new Comment.Actor();
        JsonNode actorNode = node.get("actor");
        actor.setDisplayName(actorNode.get("displayName").asText());
        actor.setUrl(actorNode.get("url").asText());

        Comment.Actor.Image image = new Comment.Actor.Image();
        JsonNode imageNode = actorNode.get("image");
        image.setUrl(imageNode.get("url").asText());

        actor.setImage(image);

        comment.setObject(objectMapper.readValue(objectMapper.writeValueAsString(node.get("object")),
                Comment.PlusObject.class));

        comment.setSelfLink(node.get("selfLink").asText());

        List<Comment.InReplyTo> replies = Lists.newArrayList();
        for (JsonNode reply : node.get("inReplyTo")) {
            Comment.InReplyTo r = objectMapper.readValue(objectMapper.writeValueAsString(reply),
                    Comment.InReplyTo.class);
            replies.add(r);
        }

        comment.setInReplyTo(replies);

        Comment.Plusoners plusoners = new Comment.Plusoners();
        JsonNode plusonersNode = node.get("plusoners");
        plusoners.setTotalItems(plusonersNode.get("totalItems").asLong());
        comment.setPlusoners(plusoners);
    } catch (Exception e) {
        LOGGER.error("Exception while trying to deserialize activity object: {}", e);
    }

    return comment;
}

From source file:org.dswarm.graph.json.deserializer.ResourceDeserializer.java

@Override
public Resource deserialize(final JsonParser jp, final DeserializationContext ctxt)
        throws IOException, JsonProcessingException {

    final ObjectCodec oc = jp.getCodec();

    if (oc == null) {

        return null;
    }/*from w  ww.  ja  v  a 2  s.com*/

    final JsonNode node = oc.readTree(jp);

    if (node == null) {

        return null;
    }

    final Iterator<String> resourceUriFieldNames = node.fieldNames();

    if (resourceUriFieldNames == null || !resourceUriFieldNames.hasNext()) {

        return null;
    }

    final String resourceUri = resourceUriFieldNames.next();

    if (resourceUri == null) {

        return null;
    }

    final JsonNode resourceNode = node.get(resourceUri);

    if (resourceNode == null) {

        return null;
    }

    if (!ArrayNode.class.isInstance(resourceNode)) {

        throw new JsonParseException("expected a JSON array full of statement objects of the resource",
                jp.getCurrentLocation());
    }

    final Resource resource = new Resource(resourceUri);

    if (resourceNode.size() <= 0) {

        return resource;
    }

    for (final JsonNode statementNode : resourceNode) {

        final Statement statement = statementNode.traverse(oc).readValueAs(Statement.class);
        resource.addStatement(statement);
    }

    return resource;
}

From source file:org.jasig.portlet.survey.service.dto.ResponseAnswerDtoDeserializer.java

@Override
public ResponseAnswerDTO deserialize(JsonParser parser, DeserializationContext context)
        throws IOException, JsonProcessingException {
    log.debug("deserializing responseAnswer JSON");
    JsonNode node = parser.getCodec().readTree(parser);
    ResponseAnswerDTO dto = new ResponseAnswerDTO();

    JsonNode questionNode = node.get("question");
    log.debug(questionNode.toString());/*from ww  w  .  j  av  a  2 s  .  c om*/
    if (questionNode != null && questionNode.canConvertToLong()) {
        Long questionId = questionNode.asLong();
        dto.setQuestion(questionId);
    } else {
        throw new IllegalArgumentException("ResponseAnswer Json missing/bad question field");
    }

    JsonNode answerNode = node.get("answer");
    if (answerNode == null) {
        throw new IllegalArgumentException("ResponseAnswer Json missing answer field");
    }
    if (answerNode.canConvertToLong()) {
        dto.addAnswerId(answerNode.asLong());
    } else if (answerNode.isObject()) {
        for (Iterator<Entry<String, JsonNode>> fields = answerNode.fields(); fields.hasNext();) {
            Entry<String, JsonNode> field = fields.next();
            Long answerId = Long.parseLong(field.getKey());
            assert (field.getValue().isBoolean());
            boolean answerSelected = field.getValue().asBoolean(false);
            if (answerSelected) {
                dto.addAnswerId(answerId);
            }
        }
    } else {
        throw new IllegalArgumentException("ResponseAnswer Json bad answer argument field");
    }

    return dto;
}

From source file:org.apache.olingo.client.core.serialization.JsonEntitySetDeserializer.java

protected ResWrap<EntityCollection> doDeserialize(final JsonParser parser) throws IOException {

    final ObjectNode tree = (ObjectNode) parser.getCodec().readTree(parser);

    if (!tree.has(Constants.VALUE)) {
        return null;
    }/*  w  ww .  ja  v a  2 s  . c o m*/

    final EntityCollection entitySet = new EntityCollection();

    URI contextURL;
    if (tree.hasNonNull(Constants.JSON_CONTEXT)) {
        contextURL = URI.create(tree.get(Constants.JSON_CONTEXT).textValue());
        tree.remove(Constants.JSON_CONTEXT);
    } else if (tree.hasNonNull(Constants.JSON_METADATA)) {
        contextURL = URI.create(tree.get(Constants.JSON_METADATA).textValue());
        tree.remove(Constants.JSON_METADATA);
    } else {
        contextURL = null;
    }
    if (contextURL != null) {
        entitySet.setBaseURI(
                URI.create(StringUtils.substringBefore(contextURL.toASCIIString(), Constants.METADATA)));
    }

    final String metadataETag;
    if (tree.hasNonNull(Constants.JSON_METADATA_ETAG)) {
        metadataETag = tree.get(Constants.JSON_METADATA_ETAG).textValue();
        tree.remove(Constants.JSON_METADATA_ETAG);
    } else {
        metadataETag = null;
    }

    if (tree.hasNonNull(Constants.JSON_COUNT)) {
        entitySet.setCount(tree.get(Constants.JSON_COUNT).asInt());
        tree.remove(Constants.JSON_COUNT);
    }
    if (tree.hasNonNull(Constants.JSON_NEXT_LINK)) {
        entitySet.setNext(URI.create(tree.get(Constants.JSON_NEXT_LINK).textValue()));
        tree.remove(Constants.JSON_NEXT_LINK);
    }
    if (tree.hasNonNull(Constants.JSON_DELTA_LINK)) {
        entitySet.setDeltaLink(URI.create(tree.get(Constants.JSON_DELTA_LINK).textValue()));
        tree.remove(Constants.JSON_DELTA_LINK);
    }

    if (tree.hasNonNull(Constants.VALUE)) {
        final JsonEntityDeserializer entityDeserializer = new JsonEntityDeserializer(serverMode);
        for (JsonNode jsonNode : tree.get(Constants.VALUE)) {
            entitySet.getEntities()
                    .add(entityDeserializer.doDeserialize(jsonNode.traverse(parser.getCodec())).getPayload());
        }
        tree.remove(Constants.VALUE);
    }
    final Set<String> toRemove = new HashSet<String>();
    // any remaining entry is supposed to be an annotation or is ignored
    for (final Iterator<Map.Entry<String, JsonNode>> itor = tree.fields(); itor.hasNext();) {
        final Map.Entry<String, JsonNode> field = itor.next();
        if (field.getKey().charAt(0) == '@') {
            final Annotation annotation = new Annotation();
            annotation.setTerm(field.getKey().substring(1));

            try {
                value(annotation, field.getValue(), parser.getCodec());
            } catch (final EdmPrimitiveTypeException e) {
                throw new IOException(e);
            }
            entitySet.getAnnotations().add(annotation);
        } else if (field.getKey().charAt(0) == '#') {
            final Operation operation = new Operation();
            operation.setMetadataAnchor(field.getKey());

            final ObjectNode opNode = (ObjectNode) tree.get(field.getKey());
            operation.setTitle(opNode.get(Constants.ATTR_TITLE).asText());
            operation.setTarget(URI.create(opNode.get(Constants.ATTR_TARGET).asText()));
            entitySet.getOperations().add(operation);
            toRemove.add(field.getKey());
        }
    }
    tree.remove(toRemove);
    return new ResWrap<EntityCollection>(contextURL, metadataETag, entitySet);
}