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

Introduction

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

Prototype

public abstract double getDoubleValue() throws IOException, JsonParseException;

Source Link

Document

Numeric accessor that can be called when the current token is of type JsonToken#VALUE_NUMBER_FLOAT and it can be expressed as a Java double primitive type.

Usage

From source file:org.h2gis.drivers.geojson.GeoJsonReaderDriver.java

/**
 * Parses a GeoJSON coordinate array and returns a JTS coordinate. The first
 * token corresponds to the first X value. The last token correponds to the
 * end of the coordinate array "]"./*from   www  .  j  a  v  a  2s.co m*/
 *
 * Parsed syntax:
 *
 * 100.0, 0.0]
 *
 * @param jp
 * @throws IOException
 * @return Coordinate
 */
private Coordinate parseCoordinate(JsonParser jp) throws IOException {
    jp.nextToken();
    double x = jp.getDoubleValue();// VALUE_NUMBER_FLOAT
    jp.nextToken(); // second value
    double y = jp.getDoubleValue();
    Coordinate coord;
    //We look for a z value
    jp.nextToken();
    if (jp.getCurrentToken() == JsonToken.END_ARRAY) {
        coord = new Coordinate(x, y);
    } else {
        double z = jp.getDoubleValue();
        jp.nextToken(); // exit array
        coord = new Coordinate(x, y, z);
    }
    jp.nextToken();
    return coord;
}

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From source file:org.example.testcases.BasicTypesDeSerializer.java

private BasicTypes readObject(JsonParser jp) throws IOException {
    BasicTypes basicTypes = new BasicTypes();
    for (JsonToken jsonToken; (jsonToken = jp.nextToken()) != null && (jsonToken != END_OBJECT);) {
        if (FIELD_NAME != jsonToken)
            continue;
        final String fieldName = jp.getCurrentName();
        switch (fieldName) {
        case "aString":
            jsonToken = jp.nextToken(); // read value
            basicTypes.aString = jp.getText();
            break;
        case "aBoolean":
            jsonToken = jp.nextToken(); // read value
            basicTypes.aBoolean = jp.getBooleanValue();
            break;
        case "aFloat":
            jsonToken = jp.nextToken(); // read value
            basicTypes.aFloat = jp.getFloatValue();
            break;
        case "aDouble":
            jsonToken = jp.nextToken(); // read value
            basicTypes.aDouble = jp.getDoubleValue();
            break;
        case "aInt":
            jsonToken = jp.nextToken(); // read value
            basicTypes.aInt = jp.getIntValue();
            break;
        case "aShort":
            jsonToken = jp.nextToken(); // read value
            basicTypes.aShort = jp.getShortValue();
            break;
        case "aByte":
            jsonToken = jp.nextToken(); // read value
            basicTypes.aByte = jp.getByteValue();
            break;
        default:/*from   w w  w  .j a  v  a2s  .  c  om*/
            // decide what to do;
        }
    }
    return basicTypes;
}

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From source file:org.hyperledger.dropwizard.hocon.HoconDeserializer.java

protected ConfigList deserializeArray(JsonParser jp, DeserializationContext ctxt) throws IOException {

    List<Object> values = new ArrayList<>();

    JsonToken t;//from   w ww.  ja v  a  2 s. co m
    while ((t = jp.nextToken()) != JsonToken.END_ARRAY) {
        switch (t) {
        case START_ARRAY:
            values.add(deserializeArray(jp, ctxt).unwrapped());
            break;
        case START_OBJECT:
            values.add(deserializeObject(jp, ctxt).unwrapped());
            break;
        case VALUE_FALSE:
            values.add(false);
            break;
        case VALUE_TRUE:
            values.add(true);
            break;
        case VALUE_NULL:
            values.add(null);
            break;
        case VALUE_NUMBER_FLOAT:
            if (jp.getNumberType() == JsonParser.NumberType.BIG_DECIMAL) {
                values.add(jp.getDecimalValue());
            } else {
                values.add(jp.getDoubleValue());
            }
            break;
        case VALUE_NUMBER_INT:
            // very cumbersome... but has to be done
            switch (jp.getNumberType()) {
            case LONG:
                values.add(jp.getLongValue());
                break;
            case INT:
                values.add(jp.getIntValue());
                break;
            default:
                values.add(jp.getBigIntegerValue());
            }
            break;
        case VALUE_STRING:
            values.add(jp.getText());
            break;
        default:
            throw ctxt.mappingException(_valueClass);
        }
    }
    return ConfigValueFactory.fromIterable(values);
}

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From source file:org.hyperledger.dropwizard.hocon.HoconDeserializer.java

protected ConfigObject deserializeObject(JsonParser jp, DeserializationContext ctxt) throws IOException {
    HashMap<String, Object> mapping = new HashMap<>();

    while (jp.nextToken() != JsonToken.END_OBJECT) {
        String name = jp.getCurrentName();
        JsonToken t = jp.nextToken();/*from  ww w .  j a  v a 2  s  . c o m*/
        switch (t) {
        case START_ARRAY:
            mapping.put(name, deserializeArray(jp, ctxt).unwrapped());
            break;
        case START_OBJECT:
            mapping.put(name, deserializeObject(jp, ctxt).unwrapped());
            break;
        case VALUE_FALSE:
            mapping.put(name, false);
            break;
        case VALUE_TRUE:
            mapping.put(name, true);
            break;
        case VALUE_NULL:
            mapping.put(name, null);
            break;
        case VALUE_NUMBER_FLOAT:
            if (jp.getNumberType() == JsonParser.NumberType.BIG_DECIMAL) {
                mapping.put(name, jp.getDecimalValue());
            } else {
                mapping.put(name, jp.getDoubleValue());
            }
            break;
        case VALUE_NUMBER_INT:
            // very cumbersome... but has to be done
            switch (jp.getNumberType()) {
            case LONG:
                mapping.put(name, jp.getLongValue());
                break;
            case INT:
                mapping.put(name, jp.getIntValue());
                break;
            default:
                mapping.put(name, jp.getBigIntegerValue());
            }
            break;
        case VALUE_STRING:
            mapping.put(name, jp.getText());
            break;
        case VALUE_EMBEDDED_OBJECT: {
            Object ob = jp.getEmbeddedObject();
            if (ob instanceof byte[]) {
                String b64 = ctxt.getBase64Variant().encode((byte[]) ob, false);
                mapping.put(name, b64);
                break;
            }
        }
        default:
            throw ctxt.mappingException(_valueClass);
        }
    }
    return ConfigValueFactory.fromMap(mapping);
}

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From source file:com.joliciel.jochre.search.highlight.Snippet.java

private void read(JsonParser jsonParser) {
    try {//  www.j a v a  2  s  .c om
        if (jsonParser.getCurrentToken() != JsonToken.START_OBJECT)
            throw new RuntimeException("Expected START_OBJECT, but was " + jsonParser.getCurrentToken() + " at "
                    + jsonParser.getCurrentLocation());
        while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
            String fieldName = jsonParser.getCurrentName();

            if (fieldName.equals("docId")) {
                this.docId = jsonParser.nextIntValue(0);
            } else if (fieldName.equals("field")) {
                this.field = jsonParser.nextTextValue();
            } else if (fieldName.equals("start")) {
                this.startOffset = jsonParser.nextIntValue(0);
            } else if (fieldName.equals("end")) {
                this.endOffset = jsonParser.nextIntValue(0);
            } else if (fieldName.equals("score")) {
                jsonParser.nextValue();
                this.score = jsonParser.getDoubleValue();
                this.scoreCalculated = true;
            } else if (fieldName.equals("terms")) {
                if (jsonParser.nextToken() != JsonToken.START_ARRAY)
                    throw new RuntimeException("Expected START_ARRAY, but was " + jsonParser.getCurrentToken()
                            + " at " + jsonParser.getCurrentLocation());
                while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
                    if (jsonParser.getCurrentToken() != JsonToken.START_OBJECT)
                        throw new RuntimeException("Expected START_OBJECT, but was "
                                + jsonParser.getCurrentToken() + " at " + jsonParser.getCurrentLocation());
                    int termDocId = docId;
                    String termField = field;
                    int termStart = 0;
                    int termEnd = 0;
                    int pageIndex = 0;
                    int imageIndex = 0;
                    double weight = 0.0;
                    while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
                        String termFieldName = jsonParser.getCurrentName();
                        if (termFieldName.equals("docId")) {
                            termDocId = jsonParser.nextIntValue(0);
                        } else if (termFieldName.equals("field")) {
                            termField = jsonParser.nextTextValue();
                        } else if (termFieldName.equals("start")) {
                            termStart = jsonParser.nextIntValue(0);
                        } else if (termFieldName.equals("end")) {
                            termEnd = jsonParser.nextIntValue(0);
                        } else if (termFieldName.equals("pageIndex")) {
                            pageIndex = jsonParser.nextIntValue(0);
                        } else if (termFieldName.equals("imageIndex")) {
                            imageIndex = jsonParser.nextIntValue(0);
                        } else if (termFieldName.equals("weight")) {
                            jsonParser.nextValue();
                            weight = jsonParser.getDoubleValue();
                        } else {
                            throw new RuntimeException("Unexpected term field name: " + termFieldName + " at "
                                    + jsonParser.getCurrentLocation());
                        }
                    }
                    HighlightTerm highlightTerm = new HighlightTerm(termDocId, termField, termStart, termEnd,
                            imageIndex, pageIndex);
                    highlightTerm.setWeight(weight);
                    this.highlightTerms.add(highlightTerm);
                }
            } else {
                throw new RuntimeException(
                        "Unexpected field name: " + fieldName + " at " + jsonParser.getCurrentLocation());
            }
        }
    } catch (JsonParseException e) {
        LOG.error(e);
        throw new RuntimeException(e);
    } catch (IOException e) {
        LOG.error(e);
        throw new RuntimeException(e);
    }
}

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From source file:org.debezium.core.doc.JacksonReader.java

private Array parseArray(JsonParser parser) throws IOException {
    // Iterate over the fields in the top-level document ...
    BasicArray array = new BasicArray();
    JsonToken token = parser.nextToken();
    while (token != JsonToken.END_ARRAY) {
        switch (token) {
        case START_OBJECT:
            array.add(parseDocument(parser, true));
            break;
        case START_ARRAY:
            array.add(parseArray(parser));
            break;
        case VALUE_STRING:
            array.add(parser.getValueAsString());
            break;
        case VALUE_TRUE:
            array.add(true);//from  ww  w .java2s .  co m
            break;
        case VALUE_FALSE:
            array.add(false);
            break;
        case VALUE_NULL:
            array.addNull();
            break;
        case VALUE_NUMBER_FLOAT:
        case VALUE_NUMBER_INT:
            switch (parser.getNumberType()) {
            case FLOAT:
                array.add(parser.getFloatValue());
                break;
            case DOUBLE:
                array.add(parser.getDoubleValue());
                break;
            case BIG_DECIMAL:
                array.add(parser.getDecimalValue());
                break;
            case INT:
                array.add(parser.getIntValue());
                break;
            case LONG:
                array.add(parser.getLongValue());
                break;
            case BIG_INTEGER:
                array.add(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 FIELD_NAME:
            throw new JsonParseException("Not expecting a FIELD_NAME token", 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 array;
}

---

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

private Array parseArray(JsonParser parser, boolean nested) throws IOException {
    // Iterate over the values in the array ...
    BasicArray array = new BasicArray();
    JsonToken token = null;/*from w w w  .  j a v  a  2  s. co  m*/
    if (!nested) {
        // We expect the START_ARRAY token ...
        token = parser.nextToken();
        if (!nested && token != JsonToken.START_ARRAY) {
            throw new IOException("Expected data to start with an Array, but was " + token);
        }
    }
    token = parser.nextToken();
    while (token != JsonToken.END_ARRAY) {
        switch (token) {
        case START_OBJECT:
            array.add(parseDocument(parser, true));
            break;
        case START_ARRAY:
            array.add(parseArray(parser, true));
            break;
        case VALUE_STRING:
            array.add(parser.getValueAsString());
            break;
        case VALUE_TRUE:
            array.add(true);
            break;
        case VALUE_FALSE:
            array.add(false);
            break;
        case VALUE_NULL:
            array.addNull();
            break;
        case VALUE_NUMBER_FLOAT:
        case VALUE_NUMBER_INT:
            switch (parser.getNumberType()) {
            case FLOAT:
                array.add(parser.getFloatValue());
                break;
            case DOUBLE:
                array.add(parser.getDoubleValue());
                break;
            case BIG_DECIMAL:
                array.add(parser.getDecimalValue());
                break;
            case INT:
                array.add(parser.getIntValue());
                break;
            case LONG:
                array.add(parser.getLongValue());
                break;
            case BIG_INTEGER:
                array.add(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 FIELD_NAME:
            throw new JsonParseException("Not expecting a FIELD_NAME token", 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 array;
}

---

From source file:com.tage.calcite.adapter.druid.DruidConnectionImpl.java

private void parseField(List<String> fieldNames, List<Primitive> fieldTypes, Row.RowBuilder rowBuilder,
        JsonParser parser) throws IOException {
    final String fieldName = parser.getCurrentName();

    // Move to next token, which is name's value
    JsonToken token = parser.nextToken();
    int i = fieldNames.indexOf(fieldName);
    if (i < 0) {
        return;//ww  w.j av  a2s .  com
    }
    switch (token) {
    case VALUE_NUMBER_INT:
    case VALUE_NUMBER_FLOAT:
        Primitive type = fieldTypes.get(i);
        if (type == null) {
            if (token == JsonToken.VALUE_NUMBER_INT) {
                type = Primitive.INT;
            } else {
                type = Primitive.FLOAT;
            }
        }
        switch (type) {
        case BYTE:
            rowBuilder.set(i, parser.getIntValue());
            break;
        case SHORT:
            rowBuilder.set(i, parser.getShortValue());
            break;
        case INT:
            rowBuilder.set(i, parser.getIntValue());
            break;
        case LONG:
            rowBuilder.set(i, parser.getLongValue());
            break;
        case FLOAT:
            rowBuilder.set(i, parser.getFloatValue());
            break;
        case DOUBLE:
            rowBuilder.set(i, parser.getDoubleValue());
            break;
        }
        break;
    case VALUE_TRUE:
        rowBuilder.set(i, true);
        break;
    case VALUE_FALSE:
        rowBuilder.set(i, false);
        break;
    case VALUE_NULL:
        break;
    default:
        rowBuilder.set(i, parser.getText());
    }
}

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From source file:org.debezium.core.doc.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  w w  w . jav  a 2  s . com
    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));
            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;
}

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From source file:org.mongojack.internal.object.BsonObjectGenerator.java

@Override
public void copyCurrentEvent(JsonParser jp) throws IOException {
    JsonToken t = jp.getCurrentToken();/*from ww  w  .j  a va2  s .c  o m*/
    switch (t) {
    case START_OBJECT:
        writeStartObject();
        break;
    case END_OBJECT:
        writeEndObject();
        break;
    case START_ARRAY:
        writeStartArray();
        break;
    case END_ARRAY:
        writeEndArray();
        break;
    case FIELD_NAME:
        writeFieldName(jp.getCurrentName());
        break;
    case VALUE_STRING:
        if (jp.hasTextCharacters()) {
            writeString(jp.getTextCharacters(), jp.getTextOffset(), jp.getTextLength());
        } else {
            writeString(jp.getText());
        }
        break;
    case VALUE_NUMBER_INT:
        switch (jp.getNumberType()) {
        case INT:
            writeNumber(jp.getIntValue());
            break;
        case BIG_INTEGER:
            writeNumber(jp.getBigIntegerValue());
            break;
        default:
            writeNumber(jp.getLongValue());
        }
        break;
    case VALUE_NUMBER_FLOAT:
        switch (jp.getNumberType()) {
        case BIG_DECIMAL:
            writeNumber(jp.getDecimalValue());
            break;
        case FLOAT:
            writeNumber(jp.getFloatValue());
            break;
        default:
            writeNumber(jp.getDoubleValue());
        }
        break;
    case VALUE_TRUE:
        writeBoolean(true);
        break;
    case VALUE_FALSE:
        writeBoolean(false);
        break;
    case VALUE_NULL:
        writeNull();
        break;
    case VALUE_EMBEDDED_OBJECT:
        writeObject(jp.getEmbeddedObject());
        break;
    }
}

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