Example usage for com.fasterxml.jackson.core JsonParser 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.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 w w .  j  av  a2 s.  c om*/
        }
    }
    throw ctxt.mappingException("Expected JSON object");
}

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From source file:org.hawkular.apm.server.elasticsearch.SpanServiceElasticsearch.java

private <T> T deserialize(String json, Class<T> type) throws IOException {
    JsonParser parser = mapper.getFactory().createParser(json);

    return parser.readValueAs(type);
}

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

/**
 * Creates the module and registers all the needed serializers and
 * deserializers for Tod Commons objects
 *//* w  w  w.ja  v  a  2s  .  c  o m*/
public TodCommonsModule() {
    super("tod-commons-jackson", readJacksonVersion(TodCommonsModule.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));
        }
    });

    addDeserializer(Locale.class, new LocaleDeserializer());

    setMixInAnnotation(LocalizedString.class, JacksonLocalizedString.class);

    setMixInAnnotation(Ref.class, JacksonRef.class);

}

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From source file:ch.rasc.wampspring.message.EventMessage.java

public EventMessage(JsonParser jp, WampSession wampSession) throws IOException {
    super(WampMessageType.EVENT);

    if (jp.nextToken() != JsonToken.VALUE_STRING) {
        throw new IOException();
    }//from  w  w w. j  a  v  a2  s  .c  om
    setTopicURI(replacePrefix(jp.getValueAsString(), wampSession));

    jp.nextToken();
    this.event = jp.readValueAs(Object.class);
}

---

From source file:no.ssb.jsonstat.v2.deser.DimensionDeserializer.java

private Map<String, String> parseCategoryLabel(JsonParser p, DeserializationContext ctxt) throws IOException {
    if (p.currentToken() != JsonToken.START_OBJECT)
        ctxt.reportWrongTokenException(p, JsonToken.START_OBJECT, "label was not an object", (Object) null);

    Map<String, String> label = p.readValueAs(LABEL_MAP);

    return checkNotNull(label, "label object was null");
}

---

From source file:no.ssb.jsonstat.v2.deser.DatasetDeserializer.java

List<Number> parseValues(JsonParser p, DeserializationContext ctxt) throws IOException {
    List<Number> result = Collections.emptyList();
    switch (p.getCurrentToken()) {
    case START_OBJECT:
        SortedMap<Integer, Number> map = p.readValueAs(VALUES_MAP);
        result = new AbstractList<Number>() {

            @Override//ww  w  .j  a va  2  s.c o  m
            public int size() {
                return map.lastKey() + 1;
            }

            @Override
            public Number get(int index) {
                return map.get(index);
            }
        };
        break;
    case START_ARRAY:
        result = p.readValueAs(VALUES_LIST);
        break;
    default:
        ctxt.handleUnexpectedToken(this._valueClass, p.getCurrentToken(), p, "msg");
    }
    return result;
}

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From source file:org.killbill.billing.plugin.meter.timeline.persistent.Replayer.java

@VisibleForTesting
public void read(final File file, final Function<SourceSamplesForTimestamp, Void> fn) throws IOException {
    final JsonParser smileParser = smileFactory.createJsonParser(file);
    if (smileParser.nextToken() != JsonToken.START_ARRAY) {
        return;//  w ww  .  ja  v  a 2s .  c om
    }

    while (!shuttingDown.get() && smileParser.nextToken() != JsonToken.END_ARRAY) {
        final SourceSamplesForTimestamp sourceSamplesForTimestamp = smileParser
                .readValueAs(SourceSamplesForTimestamp.class);
        fn.apply(sourceSamplesForTimestamp);
    }

    smileParser.close();
}

---

From source file:com.basistech.AfterburnerOopsTest.java

@Test
public void oops() throws Exception {
    SmileFactory smileFactory = new SmileFactory();
    ObjectMapper mapper = new ObjectMapper(smileFactory);
    mapper = AnnotatedDataModelModule.setupObjectMapper(mapper);

    EntityMention em = new EntityMention();
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    List<EntityMention> mentions = Lists.newArrayList();
    mentions.add(em);/*from w  w  w.  j  a  v a  2s. c  om*/
    mapper.writeValue(byteArrayOutputStream, mentions);

    mapper = AnnotatedDataModelModule.setupObjectMapper(new ObjectMapper(smileFactory));
    mapper.registerModule(new AfterburnerModule());
    JsonParser jp = smileFactory.createParser(new ByteArrayInputStream(byteArrayOutputStream.toByteArray()));
    jp.setCodec(mapper);

    JsonToken current;
    current = jp.nextToken();
    if (current != JsonToken.START_ARRAY) {
        System.err.println("Error: root should be array: quiting.");
        return;
    }

    while (jp.nextToken() != JsonToken.END_ARRAY) {
        jp.readValueAs(EntityMention.class);
    }

}

---

From source file:ch.rasc.wampspring.message.PublishMessage.java

public PublishMessage(JsonParser jp, WampSession wampSession) throws IOException {
    super(WampMessageType.PUBLISH);

    if (jp.nextToken() != JsonToken.VALUE_STRING) {
        throw new IOException();
    }//from  ww  w.  j a  v  a2  s . c  o m
    setTopicURI(replacePrefix(jp.getValueAsString(), wampSession));

    jp.nextToken();
    this.event = jp.readValueAs(Object.class);

    if (jp.nextToken() != JsonToken.END_ARRAY) {
        if (jp.getCurrentToken() == JsonToken.VALUE_TRUE || jp.getCurrentToken() == JsonToken.VALUE_FALSE) {
            this.excludeMe = jp.getValueAsBoolean();

            this.exclude = null;

            this.eligible = null;

            if (jp.nextToken() != JsonToken.END_ARRAY) {
                // Wrong message format, excludeMe should not be followed by
                // any value
                throw new IOException();
            }
        } else {
            this.excludeMe = null;

            TypeReference<Set<String>> typRef = new TypeReference<Set<String>>() {
                // nothing here
            };

            if (jp.getCurrentToken() != JsonToken.START_ARRAY) {
                throw new IOException();
            }
            this.exclude = jp.readValueAs(typRef);

            if (jp.nextToken() == JsonToken.START_ARRAY) {
                this.eligible = jp.readValueAs(typRef);
            } else {
                this.eligible = null;
            }
        }
    } else {
        this.excludeMe = null;
        this.exclude = null;
        this.eligible = null;
    }

}

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

@Override
public LinkedInNetworkUpdate deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    ObjectMapper mapper = BeanResolver.getInstance().resolve(ObjectMapper.class);
    jp.setCodec(mapper);// ww w.j  av a  2  s.  co m

    JsonNode dataNode = jp.readValueAs(JsonNode.class);
    if (dataNode != null) {
        LinkedInNetworkUpdate linkedInNetworkUpdate = (LinkedInNetworkUpdate) mapper
                .reader(new TypeReference<LinkedInNetworkUpdate>() {
                }).readValue(dataNode);

        UpdateContent updatedContent = null;
        UpdateType type = linkedInNetworkUpdate.getUpdateType();
        JsonNode updatedNode = dataNode.get("updateContent");
        JsonNode person = updatedNode.get("person");
        if (type == UpdateType.MSFC) {
            // Totally different.  Looks like a bad API to be honest.
            person = updatedNode.get("companyPersonUpdate").get("person");
        }

        switch (type) {
        case CONN:
            updatedContent = mapper.reader(new TypeReference<UpdateContentConnection>() {
            }).readValue(person);
            break;
        case STAT:
            updatedContent = mapper.reader(new TypeReference<UpdateContentStatus>() {
            }).readValue(person);
            break;
        case JGRP:
            updatedContent = mapper.reader(new TypeReference<UpdateContentGroup>() {
            }).readValue(person);
            break;
        case PREC:
        case SVPR:
            updatedContent = mapper.reader(new TypeReference<UpdateContentRecommendation>() {
            }).readValue(person);
            break;
        case APPM:
            updatedContent = mapper.reader(new TypeReference<UpdateContentPersonActivity>() {
            }).readValue(person);
            break;
        case MSFC:
            updatedContent = mapper.reader(new TypeReference<UpdateContentFollow>() {
            }).readValue(person);
            break;
        case VIRL:
            updatedContent = mapper.reader(new TypeReference<UpdateContentViral>() {
            }).readValue(person);
            break;
        case SHAR:
            updatedContent = mapper.reader(new TypeReference<UpdateContentShare>() {
            }).readValue(person);
            break;
        case CMPY:
            updatedContent = mapper.reader(new TypeReference<UpdateContentCompany>() {
            }).readValue(updatedNode);
            break;
        default:
            try {
                updatedContent = mapper.reader(new TypeReference<UpdateContent>() {
                }).readValue(person);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

        // Need to use reflection to set private updateContent field
        try {
            Field f = LinkedInNetworkUpdate.class.getDeclaredField("updateContent");
            f.setAccessible(true);
            f.set(linkedInNetworkUpdate, updatedContent);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        if (type == UpdateType.MSFC) {
            // Set the action via reflection as it's private
            String action = updatedNode.get("companyPersonUpdate").get("action").get("code").asText();
            try {
                Field f = UpdateContentFollow.class.getDeclaredField("action");
                f.setAccessible(true);
                f.set(updatedContent, action);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }

            // Set following via reflection as it's private
            Company company = mapper.reader(new TypeReference<Company>() {
            }).readValue(updatedNode.get("company"));
            try {
                Field f = UpdateContentFollow.class.getDeclaredField("following");
                f.setAccessible(true);
                f.set(updatedContent, company);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        } else if (type == UpdateType.VIRL) {
            JsonNode originalUpdate = updatedNode.path("updateAction").path("originalUpdate");
            UpdateAction updateAction = mapper.reader(new TypeReference<UpdateAction>() {
            }).readValue(originalUpdate);
            String code = updatedNode.path("updateAction").path("action").path("code").textValue();

            // Set private immutable field action on updateAction
            try {
                Field f = UpdateAction.class.getDeclaredField("action");
                f.setAccessible(true);
                f.set(updateAction, code);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }

            // Set private immutable field  updateAction on updatedContent
            try {
                Field f = UpdateContentViral.class.getDeclaredField("updateAction");
                f.setAccessible(true);
                f.set(updatedContent, updateAction);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

        return linkedInNetworkUpdate;
    }

    return null;
}

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