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

Introduction

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

Prototype

public abstract String getCurrentName() throws IOException, JsonParseException;

Source Link

Document

Method that can be called to get the name associated with the current token: for JsonToken#FIELD_NAME s it will be the same as what #getText returns; for field values it will be preceding field name; and for others (array values, root-level values) null.

Usage

From source file:com.netflix.discovery.converters.jackson.serializer.ApplicationXmlDeserializer.java

@Override
public Application deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException {
    String name = null;//from   w  ww .  ja  v a2 s  . c  o m
    List<InstanceInfo> instances = new ArrayList<>();
    while (jp.nextToken() == JsonToken.FIELD_NAME) {
        String fieldName = jp.getCurrentName();
        jp.nextToken(); // to point to value
        if ("name".equals(fieldName)) {
            name = jp.getValueAsString();
        } else if ("instance".equals(fieldName)) {
            instances.add(jp.readValueAs(InstanceInfo.class));
        } else {
            throw new JsonMappingException("Unexpected field " + fieldName, jp.getCurrentLocation());
        }
    }
    return new Application(name, instances);
}

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From source file:eu.trentorise.opendata.semtext.jackson.MetadataDeserializer.java

@Override
public Map<String, Object> deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {

    ImmutableMap.Builder<String, Object> retb = ImmutableMap.builder();

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

        String namespace = jp.getCurrentName();
        // current token is "name",
        // move to next, which is "name"'s value
        jp.nextToken();//from  w ww .j  a  va2  s .c  o  m

        ImmutableSet<String> namespaces = SemTextModule.getMetadataNamespaces(hasMetadataClass);
        if (namespaces.contains(namespace)) {
            TypeReference typeRef = SemTextModule.getMetadataTypeReference(hasMetadataClass, namespace);

            Object metadata;

            try {
                metadata = jp.readValueAs(typeRef);
            } catch (Exception ex) {
                throw new SemTextMetadataException("Jackson error while deserializing metadata - ",
                        hasMetadataClass, namespace, typeRef, ex);
            }

            if (metadata == null) {
                throw new SemTextMetadataException("Found null metadata while deserializing!", hasMetadataClass,
                        namespace, typeRef);
            }

            retb.put(namespace, metadata);
        } else {
            throw new SemTextMetadataException(
                    "Found metadata under not registered namespace while deserializing!", hasMetadataClass,
                    namespace, null);
        }
    }

    return retb.build();
}

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From source file:org.apache.ode.jacob.soup.jackson.ChannelProxyDeserializer.java

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

    String type = null;/*from  w ww .  j a  v a2  s.  c o  m*/
    int id = -1;
    while (jp.nextToken() != JsonToken.END_OBJECT) {
        String fieldname = jp.getCurrentName();
        if (jp.getCurrentToken() == JsonToken.FIELD_NAME) {
            // if we're not already on the field, advance by one.
            jp.nextToken();
        }
        if ("channelType".equals(fieldname)) {
            type = jp.getText();
        } else if ("channelId".equals(fieldname)) {
            id = jp.getIntValue();
        }
    }

    if (type == null) {
        throw ctxt.mappingException(Channel.class);
    }

    if (id < 0) {
        throw ctxt.mappingException(Channel.class);
    }

    try {
        CommChannel cchannel = new CommChannel(ctxt.findClass(type));
        cchannel.setId(id);
        return (Channel) ChannelFactory.createChannel(cchannel, cchannel.getType());

    } catch (ClassNotFoundException e) {
        throw ctxt.instantiationException(Channel.class, e);
    }
}

---

From source file:com.netflix.aegisthus.tools.AegisthusSerializer.java

public Map<String, Object> deserialize(String data) throws IOException {
    try {/*from  w w  w  .  j  a va2 s .  c o  m*/
        Map<String, Object> map = new LinkedHashMap<String, Object>();
        JsonParser jp = jsonFactory.createJsonParser(data);
        jp.nextToken(); // Object
        jp.nextToken(); // key
        map.put(KEY, new DataByteArray(jp.getCurrentName().getBytes()));
        jp.nextToken(); // object
        while (jp.nextToken() != JsonToken.END_OBJECT) {
            String field = jp.getCurrentName();
            if (DELETEDAT.equals(field.toUpperCase())) {
                jp.nextToken();
                map.put(DELETEDAT, jp.getLongValue());
            } else {
                jp.nextToken();
                while (jp.nextToken() != JsonToken.END_ARRAY) {
                    List<Object> cols = new ArrayList<Object>();
                    jp.nextToken();
                    String name = jp.getText();
                    cols.add(name);
                    jp.nextToken();
                    cols.add(new DataByteArray(jp.getText().getBytes()));
                    jp.nextToken();
                    cols.add(jp.getLongValue());
                    if (jp.nextToken() != JsonToken.END_ARRAY) {
                        String status = jp.getText();
                        cols.add(status);
                        if ("e".equals(status)) {
                            jp.nextToken();
                            cols.add(jp.getLongValue());
                            jp.nextToken();
                            cols.add(jp.getLongValue());
                        } else if ("c".equals(status)) {
                            jp.nextToken();
                            cols.add(jp.getLongValue());
                        }
                        jp.nextToken();
                    }
                    map.put(name, cols);
                }
            }
        }

        return map;
    } catch (IOException e) {
        LOG.error(data);
        throw e;
    }
}

---

From source file:org.o3project.ocnrm.odenos.linklayerizer.LinkLayerizerBoundarySet.java

public Map<String, LinklayerizerBoundary> changeJSONBoundariesToBoundaries(String jsonBoundary, String seqNo) {

    logger.info(seqNo + "\t" + "changeJSONBoundariestoBoundaries Start");

    linklayerizerBoundaryMap = new HashMap<String, LinklayerizerBoundary>();
    try {/*from  w  w w  .  j  a  v a 2s  .com*/
        JsonFactory factory = new JsonFactory();
        JsonParser jp = factory.createParser(jsonBoundary);
        jp.nextToken();
        while (jp.nextToken() != JsonToken.END_OBJECT) {
            String mapKey = jp.getCurrentName();
            LinklayerizerBoundary llb = new LinklayerizerBoundary();
            jp.nextToken();
            while (jp.nextToken() != JsonToken.END_OBJECT) {
                String fieldname = jp.getCurrentName();
                jp.nextToken();
                if ("boundary_id".equals(fieldname)) {
                    llb.setBoundary_id(jp.getText());
                } else if ("lower_nw".equals(fieldname)) {
                    llb.setLower_nw(jp.getText());
                } else if ("lower_nw_node".equals(fieldname)) {
                    llb.setLower_nw_node(jp.getText());
                } else if ("lower_nw_port".equals(fieldname)) {
                    llb.setLower_nw_port(jp.getText());
                } else if ("upper_nw".equals(fieldname)) {
                    llb.setUpper_nw(jp.getText());
                } else if ("upper_nw_node".equals(fieldname)) {
                    llb.setUpper_nw_node(jp.getText());
                } else if ("upper_nw_port".equals(fieldname)) {
                    llb.setUpper_nw_port(jp.getText());
                } else if ("type".equals(fieldname)) {
                    continue;
                } else {
                    throw new IllegalStateException(seqNo + "\t" + "Unrecognized field '" + fieldname + "'!");
                }
            }
            linklayerizerBoundaryMap.put(mapKey, llb);
        }
        jp.close();
    } catch (JsonParseException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    logger.info(seqNo + "\t" + "changeJSONBoundariestoBoundaries End");
    return linklayerizerBoundaryMap;
}

---

From source file:com.sdl.odata.unmarshaller.json.core.JsonProcessor.java

/**
 * Parse the complex values.//from   ww  w.  j  a  v  a2  s . co  m
 *
 * @param jsonParser the parser
 * @return list of parsed result objects
 * @throws IOException If unable to read input parser
 */
private List<Object> getCollectionValue(JsonParser jsonParser) throws IOException {
    LOG.info("Start parsing {} array", jsonParser.getCurrentName());
    List<Object> list = new ArrayList<>();
    while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
        if (jsonParser.getCurrentToken() == JsonToken.START_OBJECT) {
            Object embedded = getEmbeddedObject(jsonParser);
            list.add(embedded);
        }
        if (!"}".equals(jsonParser.getText())) {
            list.add(jsonParser.getText());
        } else {
            LOG.info("Array is over.");
        }
    }
    return list;
}

---

From source file:KV78Tester.java

public void checkStop(JsonParser jp, String line, int userStopOrder) throws JsonParseException, IOException {
    boolean hasTown = false, hasName = false;
    String timingPoint = "";
    while (jp.nextToken() != JsonToken.END_OBJECT) {
        String namefield = jp.getCurrentName();
        jp.nextToken();/*w  w w  .jav a  2s . c  om*/
        if ("Town".equals(namefield)) {
            hasTown = true;
        }
        if ("Name".equals(namefield)) {
            hasName = true;
        }
        if ("TimingPointCode".equals(namefield)) {
            timingPoint = jp.getText();
        }
    }
    if (!hasTown && !hasName)
        System.out.println(String.format("Line %s misses townname and stopname for stopnumer %d, TPC %s", line,
                userStopOrder, timingPoint));
    else if (!hasTown)
        System.out.println(String.format("Line %s misses townname for stopnumer %d, TPC %s", line,
                userStopOrder, timingPoint));
    else if (!hasName)
        System.out.println(String.format("Line %s misses stopname for stopnumer %d, TPC %s", line,
                userStopOrder, timingPoint));
}

---

From source file:org.metis.utils.Utils.java

/**
 * Recursively steps through JSON object and arrays of objects. We support
 * only a single object or an array of objects, where each object represents
 * an entity (e.g., a student, a customer, an account, etc.).
 * /*from   w w  w .  j a  v a 2s  .  c  o  m*/
 * All objects must have the same identical set of keys.
 * 
 * @param jp
 * @param params
 * @throws Exception
 */
private static void parseJson(JsonParser jp, List<Map<String, String>> rows) throws Exception {

    // get the next json token
    JsonToken current = jp.nextToken();

    // base case: return if we've reached end of json stream
    if (current == null) {
        return;
    }

    // all rows must have the identical set of keys!
    Map<String, String> firstRow = null;
    if (!rows.isEmpty()) {
        firstRow = rows.get(0);
    }

    // we only accept objects or arrays of objects
    switch (current) {
    case START_OBJECT:
        HashMap<String, String> row = new HashMap<String, String>();
        while (jp.nextToken() != END_OBJECT) {
            // parser should be on 'key' token
            String key = jp.getCurrentName().toLowerCase();
            // ensure all rows have the identical set of keys!
            if (firstRow != null && firstRow.get(key) == null) {
                String eStr = "parseJson: given list of json objects do " + "not have identical set of keys";
                LOG.error(eStr);
                throw new Exception(eStr);
            }
            // now advance to 'value' token
            jp.nextToken();
            String value = jp.getText();
            row.put(key, value);
        }
        // if row is not null, add it to the rows list
        if (!row.isEmpty()) {
            // ensure all rows have the identical set of keys!
            if (firstRow != null && firstRow.size() != row.size()) {
                String eStr = "parseJson: given list of json objects do "
                        + "not have identical set of keys; number of " + "keys vary";
                LOG.error(eStr);
                throw new Exception(eStr);
            }
            rows.add(row);
        }
        break;
    case START_ARRAY:
    case END_ARRAY:
        break;
    default:
        LOG.error("parseJson: ERROR, json token is neither object nor array");
        throw new Exception("parseJson: ERROR, json token is neither object nor array");
    }

    // go on to the next start-of-array, end-of-array, start-of-object, or
    // end of stream
    parseJson(jp, rows);
}

---

From source file:com.sdl.odata.unmarshaller.json.core.JsonProcessor.java

/**
 * This method fills odataMap that contains special tags "odata" with key:value When the key token is over, you need
 * to execute nextToken() in order to get value.
 *
 * @param jsonParser the parser// w w  w.ja  va 2s  .  c o m
 * @throws IOException If unable to read input parser
 */
private void processSpecialTags(JsonParser jsonParser) throws IOException {
    LOG.info("@odata tags found - start parsing");
    String key = jsonParser.getCurrentName();
    jsonParser.nextToken();
    String value = jsonParser.getText();
    odataValues.put(key, value);
}

---

From source file:com.pursuer.reader.easyrss.data.parser.SubscriptionJSONParser.java

public void parse() throws JsonParseException, IOException, IllegalStateException {
    final JsonFactory factory = new JsonFactory();
    final JsonParser parser = factory.createJsonParser(input);
    Subscription sub = new Subscription();
    int level = 0;
    boolean found = false;
    while (parser.nextToken() != null) {
        final String name = parser.getCurrentName();
        switch (parser.getCurrentToken()) {
        case START_OBJECT:
        case START_ARRAY:
            level++;/*w  w  w .  ja  va2 s.c  om*/
            break;
        case END_OBJECT:
        case END_ARRAY:
            level--;
            break;
        case VALUE_STRING:
            if (level == 3) {
                if ("id".equals(name)) {
                    sub.setUid(parser.getText());
                } else if ("htmlUrl".equals(name)) {
                    sub.setUrl(parser.getText());
                } else if ("title".equals(name)) {
                    sub.setTitle(Html.fromHtml(parser.getText()).toString());
                } else if ("sortid".equals(name)) {
                    sub.setSortId(parser.getText());
                } else if ("firstitemmsec".equals(name)) {
                    sub.setFirstItemMsec(Long.valueOf(parser.getText()));
                }
            } else if (level == 5 && "id".equals(name)) {
                sub.addTag(parser.getText());
            }
            break;
        case FIELD_NAME:
            if (level == 1 && "subscriptions".equals(name)) {
                found = true;
            }
            break;
        default:
        }
        if (level == 2) {
            if (sub.getUid() != null && listener != null) {
                listener.onSubscriptionRetrieved(sub);
            }
            sub = new Subscription();
        }
    }
    parser.close();
    if (!found) {
        throw new IllegalStateException("Invalid JSON input");
    }
}

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