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

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

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Introduction

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

Prototype

public abstract JsonToken nextToken() throws IOException, JsonParseException;

Source Link

Document

Main iteration method, which will advance stream enough to determine type of the next token, if any.

Usage

From source file:data.DefaultExchanger.java

private void importDataFromArray(JsonParser parser, JdbcTemplate jdbcTemplate, int batchSize)
        throws IOException {
    int importedNodesCount = 0;
    final List<JsonNode> nodes = new ArrayList<>();
    while (parser.nextToken() != JsonToken.END_ARRAY) {
        final JsonNode node = parser.readValueAsTree();
        nodes.add(node);//w  w w .  j  a v  a 2  s  . c o m
        if (nodes.size() == batchSize) {
            importedNodesCount += batchUpdate(jdbcTemplate, nodes).length;
            nodes.clear();
        }
    }
    if (nodes.size() > 0) {
        importedNodesCount += batchUpdate(jdbcTemplate, nodes).length;
    }
    play.Logger.info("imported {{}} {}", importedNodesCount, getTable());
}

From source file:org.oscim.utils.overpass.OverpassAPIReader.java

private void parseWay(JsonParser jp) throws JsonParseException, IOException {

    long id = 0;//  w  w  w. j  a v  a  2s  .  com
    TagSet tags = null;
    ArrayList<OsmNode> wayNodes = new ArrayList<OsmNode>();

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

        String name = jp.getCurrentName();
        jp.nextToken();

        if ("id".equals(name))
            id = jp.getLongValue();

        else if ("nodes".equals(name)) {
            while (jp.nextToken() != JsonToken.END_ARRAY) {
                Long nodeId = Long.valueOf(jp.getLongValue());

                OsmNode node = nodesById.get(nodeId);
                if (node != null)
                    // log("missing node " + nodeId);
                    // else
                    wayNodes.add(node);
            }
        } else if ("tags".equals(name))
            tags = parseTags(jp);
    }

    // log("way: "+ id + " " + wayNodes.size());
    OsmWay way = new OsmWay(tags, id, wayNodes);
    ownWays.add(way);
    waysById.put(Long.valueOf(id), way);
}

From source file:io.debezium.document.JacksonReader.java

private Document parseDocument(JsonParser parser, boolean nested) throws IOException {
    // Iterate over the fields in the top-level document ...
    BasicDocument doc = new BasicDocument();
    JsonToken token = null;//from www .  j a v  a2s .  c o m
    if (!nested) {
        // We expect the START_OBJECT token ...
        token = parser.nextToken();
        if (!nested && token != JsonToken.START_OBJECT) {
            throw new IOException("Expected data to start with an Object, but was " + token);
        }
    }
    String fieldName = null;
    token = parser.nextToken();
    while (token != JsonToken.END_OBJECT) {
        switch (token) {
        case FIELD_NAME:
            fieldName = parser.getCurrentName();
            break;
        case START_OBJECT:
            doc.setDocument(fieldName, parseDocument(parser, true));
            break;
        case START_ARRAY:
            doc.setArray(fieldName, parseArray(parser, true));
            break;
        case VALUE_STRING:
            doc.setString(fieldName, parser.getValueAsString());
            break;
        case VALUE_TRUE:
            doc.setBoolean(fieldName, true);
            break;
        case VALUE_FALSE:
            doc.setBoolean(fieldName, false);
            break;
        case VALUE_NULL:
            doc.setNull(fieldName);
            break;
        case VALUE_NUMBER_FLOAT:
        case VALUE_NUMBER_INT:
            switch (parser.getNumberType()) {
            case FLOAT:
                doc.setNumber(fieldName, parser.getFloatValue());
                break;
            case DOUBLE:
                doc.setNumber(fieldName, parser.getDoubleValue());
                break;
            case BIG_DECIMAL:
                doc.setNumber(fieldName, parser.getDecimalValue());
                break;
            case INT:
                doc.setNumber(fieldName, parser.getIntValue());
                break;
            case LONG:
                doc.setNumber(fieldName, parser.getLongValue());
                break;
            case BIG_INTEGER:
                doc.setNumber(fieldName, parser.getBigIntegerValue());
                break;
            }
            break;
        case VALUE_EMBEDDED_OBJECT:
            // disregard this, since it's an extension ...
            break;
        case NOT_AVAILABLE:
            throw new JsonParseException("Non-blocking parsers are not supported", parser.getCurrentLocation());
        case END_ARRAY:
            throw new JsonParseException("Not expecting an END_ARRAY token", parser.getCurrentLocation());
        case END_OBJECT:
            throw new JsonParseException("Not expecting an END_OBJECT token", parser.getCurrentLocation());
        }
        token = parser.nextToken();
    }
    return doc;
}

From source file:org.gvnix.web.json.DataBinderDeserializer.java

/**
 * Deserializes JSON object into Map<String, String> format to use it in a
 * Spring {@link DataBinder}.//from w w  w  .j a  v a 2s  .co m
 * <p/>
 * Iterate over every object's property and delegates on
 * {@link #readField(JsonParser, DeserializationContext, JsonToken, String)}
 * 
 * @param parser JSON parser
 * @param ctxt context
 * @param prefix object DataBinder path
 * @return property values
 * @throws IOException
 * @throws JsonProcessingException
 */
public Map<String, String> readObject(JsonParser parser, DeserializationContext ctxt, String prefix)
        throws IOException, JsonProcessingException {
    JsonToken t = parser.getCurrentToken();

    if (t == JsonToken.START_OBJECT) {
        t = parser.nextToken();
        // Skip it to locate on first object data token
    }

    // Deserialize object properties
    Map<String, String> deserObj = new HashMap<String, String>();
    for (; t != JsonToken.END_OBJECT; t = parser.nextToken()) {
        Map<String, String> field = readField(parser, ctxt, t, prefix);
        deserObj.putAll(field);
    }
    return deserObj;
}

From source file:org.gvnix.web.json.DataBinderDeserializer.java

/**
 * Deserializes JSON array into Map<String, String> format to use it in a
 * Spring {@link DataBinder}.//w ww  .  j  a va  2 s.c  o m
 * <p/>
 * Iterate over every array's item to generate a prefix for property names
 * on DataBinder style (
 * <em>{prefix}[{index}].<em>) and delegates on {@link #readField(JsonParser, DeserializationContext, JsonToken, String)}
 * 
 * @param parser JSON parser
 * @param ctxt context
 * @param prefix array dataBinder path
 * @return
 * @throws IOException
 * @throws JsonProcessingException
 */
protected Map<String, String> readArray(JsonParser parser, DeserializationContext ctxt, String prefix)
        throws IOException, JsonProcessingException {
    JsonToken t = parser.getCurrentToken();

    if (t == JsonToken.START_ARRAY) {
        t = parser.nextToken();
        // Skip it to locate on first array data token
    }

    // Deserialize array properties
    int i = 0;
    Map<String, String> deserObj = new HashMap<String, String>();
    for (; t != JsonToken.END_ARRAY; t = parser.nextToken()) {
        // Property name must include prefix this way:
        // degrees[0].description
        Map<String, String> field = readField(parser, ctxt, t,
                prefix.concat("[").concat(Integer.toString(i++)).concat("]."));
        deserObj.putAll(field);
    }
    return deserObj;
}

From source file:com.msopentech.odatajclient.engine.metadata.edm.EntityContainerDeserializer.java

@Override
protected AbstractEntityContainer doDeserialize(final JsonParser jp, final DeserializationContext ctxt)
        throws IOException, JsonProcessingException {

    final AbstractEntityContainer entityContainer = ODataVersion.V3 == client.getWorkingVersion()
            ? new com.msopentech.odatajclient.engine.metadata.edm.v3.EntityContainer()
            : new com.msopentech.odatajclient.engine.metadata.edm.v4.EntityContainer();

    for (; jp.getCurrentToken() != JsonToken.END_OBJECT; jp.nextToken()) {
        final JsonToken token = jp.getCurrentToken();
        if (token == JsonToken.FIELD_NAME) {
            if ("Name".equals(jp.getCurrentName())) {
                entityContainer.setName(jp.nextTextValue());
            } else if ("Extends".equals(jp.getCurrentName())) {
                entityContainer.setExtends(jp.nextTextValue());
            } else if ("LazyLoadingEnabled".equals(jp.getCurrentName())) {
                entityContainer.setLazyLoadingEnabled(BooleanUtils.toBoolean(jp.nextTextValue()));
            } else if ("IsDefaultEntityContainer".equals(jp.getCurrentName())) {
                entityContainer.setDefaultEntityContainer(BooleanUtils.toBoolean(jp.nextTextValue()));
            } else if ("EntitySet".equals(jp.getCurrentName())) {
                jp.nextToken();//from   w w  w. j  a  v  a2s . co m
                if (entityContainer instanceof com.msopentech.odatajclient.engine.metadata.edm.v3.EntityContainer) {
                    ((com.msopentech.odatajclient.engine.metadata.edm.v3.EntityContainer) entityContainer)
                            .getEntitySets().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.metadata.edm.v3.EntitySet.class));
                } else {
                    ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityContainer) entityContainer)
                            .getEntitySets().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.metadata.edm.v4.EntitySet.class));
                }
            } else if ("AssociationSet".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.metadata.edm.v3.EntityContainer) entityContainer)
                        .getAssociationSets().add(jp.getCodec().readValue(jp, AssociationSet.class));
            } else if ("Singleton".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityContainer) entityContainer)
                        .getSingletons().add(jp.getCodec().readValue(jp, Singleton.class));
            } else if ("ActionImport".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityContainer) entityContainer)
                        .getActionImports().add(jp.getCodec().readValue(jp, ActionImport.class));
            } else if ("FunctionImport".equals(jp.getCurrentName())) {
                jp.nextToken();
                if (entityContainer instanceof com.msopentech.odatajclient.engine.metadata.edm.v3.EntityContainer) {
                    ((com.msopentech.odatajclient.engine.metadata.edm.v3.EntityContainer) entityContainer)
                            .getFunctionImports().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.metadata.edm.v3.FunctionImport.class));
                } else {
                    ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityContainer) entityContainer)
                            .getFunctionImports().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.metadata.edm.v4.FunctionImport.class));
                }
            } else if ("Annotation".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityContainer) entityContainer)
                        .setAnnotation(jp.getCodec().readValue(jp, Annotation.class));
            }
        }
    }

    return entityContainer;
}

From source file:com.google.openrtb.json.OpenRtbJsonExtComplexReader.java

@SuppressWarnings("unchecked")
private void readSingle(EB msg, JsonParser par, XB ext) throws IOException {
    if (isJsonObject) {
        startObject(par);//from w w  w.j a  v  a 2 s. c om
    }
    boolean extRead = false;
    JsonToken tokLast = par.getCurrentToken();
    JsonLocation locLast = par.getCurrentLocation();
    while (endObject(par)) {
        read(ext, par);
        if (par.getCurrentToken() != tokLast || !par.getCurrentLocation().equals(locLast)) {
            extRead = true;
            par.nextToken();
            tokLast = par.getCurrentToken();
            locLast = par.getCurrentLocation();
        } else {
            break;
        }
    }
    if (extRead) {
        msg.setExtension(key, ext.build());
    }
    if (isJsonObject) {
        par.nextToken();
    }
}

From source file:org.seedstack.seed.core.internal.data.DataManagerImpl.java

@Override
public void importData(InputStream inputStream, String acceptGroup, String acceptName, boolean clear) {
    Set<DataImporter<Object>> usedDataImporters = new HashSet<>();

    try {//from  w w  w .  java2 s . co m
        ParsingState state = ParsingState.START;
        String group = null;
        String name = null;
        JsonParser jsonParser = this.jsonFactory
                .createParser(new InputStreamReader(inputStream, Charset.forName(UTF_8)));
        JsonToken jsonToken = jsonParser.nextToken();

        while (jsonToken != null) {
            switch (state) {
            case START:
                if (jsonToken == JsonToken.START_ARRAY) {
                    state = ParsingState.DEFINITION_START;
                } else {
                    throwParsingError(jsonParser.getCurrentLocation(), "start array expected");
                }

                break;
            case DEFINITION_START:
                if (jsonToken == JsonToken.START_OBJECT) {
                    state = ParsingState.DEFINITION_GROUP;
                } else {
                    throwParsingError(jsonParser.getCurrentLocation(), "start object expected");
                }

                break;
            case DEFINITION_GROUP:
                if (jsonToken == JsonToken.FIELD_NAME && GROUP.equals(jsonParser.getCurrentName())) {
                    group = jsonParser.nextTextValue();
                    state = ParsingState.DEFINITION_NAME;
                } else {
                    throwParsingError(jsonParser.getCurrentLocation(), "group field expected");
                }

                break;
            case DEFINITION_NAME:
                if (jsonToken == JsonToken.FIELD_NAME && NAME.equals(jsonParser.getCurrentName())) {
                    name = jsonParser.nextTextValue();
                    state = ParsingState.DEFINITION_ITEMS;
                } else {
                    throwParsingError(jsonParser.getCurrentLocation(), "name field expected");
                }

                break;
            case DEFINITION_ITEMS:
                if (jsonToken == JsonToken.FIELD_NAME && ITEMS.equals(jsonParser.getCurrentName())) {
                    usedDataImporters.add(consumeItems(jsonParser, group, name, acceptGroup, acceptName));
                    state = ParsingState.DEFINITION_END;
                } else {
                    throwParsingError(jsonParser.getCurrentLocation(), "items field expected");
                }

                break;
            case DEFINITION_END:
                if (jsonToken == JsonToken.END_OBJECT) {
                    group = null;
                    name = null;
                    state = ParsingState.END;
                } else {
                    throwParsingError(jsonParser.getCurrentLocation(), "end object expected");
                }

                break;
            case END:
                if (jsonToken == JsonToken.START_OBJECT) {
                    state = ParsingState.DEFINITION_GROUP;
                } else if (jsonToken == JsonToken.END_ARRAY) {
                    state = ParsingState.START;
                } else {
                    throwParsingError(jsonParser.getCurrentLocation(), "start object or end array expected");
                }

                break;
            default:
                throwParsingError(jsonParser.getCurrentLocation(), "unexpected parser state");
            }

            jsonToken = jsonParser.nextToken();
        }
    } catch (Exception e1) {
        for (DataImporter<Object> usedDataImporter : usedDataImporters) {
            try {
                usedDataImporter.rollback();
            } catch (Exception e2) {
                e2.initCause(e1);
                throw SeedException.wrap(e2, DataErrorCode.FAILED_TO_ROLLBACK_IMPORT).put(IMPORTER_CLASS,
                        usedDataImporter.getClass().getName());
            }
        }

        throw SeedException.wrap(e1, DataErrorCode.IMPORT_FAILED);
    }

    for (DataImporter<Object> usedDataImporter : usedDataImporters) {
        try {
            usedDataImporter.commit(clear);
        } catch (Exception e) {
            throw SeedException.wrap(e, DataErrorCode.FAILED_TO_COMMIT_IMPORT).put(IMPORTER_CLASS,
                    usedDataImporter.getClass().getName());
        }
    }
}

From source file:org.oscim.utils.overpass.OverpassAPIReader.java

private void parseRelation(JsonParser jp) throws JsonParseException, IOException {

    long id = 0;//from w w w.j a va 2  s  . c o m
    TagSet tags = null;
    ArrayList<TmpRelation> members = new ArrayList<TmpRelation>();

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

        String name = jp.getCurrentName();
        jp.nextToken();

        if ("id".equals(name))
            id = jp.getLongValue();

        else if ("members".equals(name)) {
            while (jp.nextToken() != JsonToken.END_ARRAY) {
                TmpRelation member = new TmpRelation();

                while (jp.nextToken() != JsonToken.END_OBJECT) {
                    name = jp.getCurrentName();
                    jp.nextToken();

                    if ("type".equals(name))
                        member.type = jp.getText();

                    else if ("ref".equals(name))
                        member.id = Long.valueOf(jp.getLongValue());

                    else if ("role".equals(name))
                        member.role = jp.getText();
                }
                members.add(member);
            }
        } else if ("tags".equals(name))
            tags = parseTags(jp);
    }

    OsmRelation relation = new OsmRelation(tags, id, members.size());
    ownRelations.add(relation);
    relationsById.put(Long.valueOf(id), relation);
    relationMembersForRelation.put(relation, members);
}

From source file:com.msopentech.odatajclient.engine.data.metadata.edm.EntityContainerDeserializer.java

@Override
protected AbstractEntityContainer doDeserialize(final JsonParser jp, final DeserializationContext ctxt)
        throws IOException, JsonProcessingException {

    final AbstractEntityContainer entityContainer = ODataVersion.V3 == client.getWorkingVersion()
            ? new com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityContainer()
            : new com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityContainer();

    for (; jp.getCurrentToken() != JsonToken.END_OBJECT; jp.nextToken()) {
        final JsonToken token = jp.getCurrentToken();
        if (token == JsonToken.FIELD_NAME) {
            if ("Name".equals(jp.getCurrentName())) {
                entityContainer.setName(jp.nextTextValue());
            } else if ("Extends".equals(jp.getCurrentName())) {
                entityContainer.setExtends(jp.nextTextValue());
            } else if ("LazyLoadingEnabled".equals(jp.getCurrentName())) {
                entityContainer.setLazyLoadingEnabled(BooleanUtils.toBoolean(jp.nextTextValue()));
            } else if ("IsDefaultEntityContainer".equals(jp.getCurrentName())) {
                entityContainer.setDefaultEntityContainer(BooleanUtils.toBoolean(jp.nextTextValue()));
            } else if ("EntitySet".equals(jp.getCurrentName())) {
                jp.nextToken();//ww w  . j ava 2 s.co  m
                if (entityContainer instanceof com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityContainer) {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityContainer) entityContainer)
                            .getEntitySets().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntitySet.class));
                } else {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityContainer) entityContainer)
                            .getEntitySets().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntitySet.class));
                }
            } else if ("AssociationSet".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityContainer) entityContainer)
                        .getAssociationSets().add(jp.getCodec().readValue(jp, AssociationSet.class));
            } else if ("Singleton".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityContainer) entityContainer)
                        .getSingletons().add(jp.getCodec().readValue(jp, Singleton.class));
            } else if ("ActionImport".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityContainer) entityContainer)
                        .getActionImports().add(jp.getCodec().readValue(jp, ActionImport.class));
            } else if ("FunctionImport".equals(jp.getCurrentName())) {
                jp.nextToken();
                if (entityContainer instanceof com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityContainer) {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityContainer) entityContainer)
                            .getFunctionImports().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v3.FunctionImport.class));
                } else {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityContainer) entityContainer)
                            .getFunctionImports().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v4.FunctionImport.class));
                }
            } else if ("Annotation".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityContainer) entityContainer)
                        .setAnnotation(jp.getCodec().readValue(jp, Annotation.class));
            }
        }
    }

    return entityContainer;
}