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:com.adobe.communities.ugc.migration.importer.UGCImportHelper.java

public void importQnaContent(final JsonParser jsonParser, final Resource resource,
        final ResourceResolver resolver) throws ServletException, IOException {
    if (jsonParser.getCurrentToken().equals(JsonToken.START_OBJECT)) {
        jsonParser.nextToken(); // advance to first key in the object - should be the id value of the old post
        while (jsonParser.getCurrentToken().equals(JsonToken.FIELD_NAME)) {
            extractTopic(jsonParser, resource, resolver, qnaForumOperations);
            jsonParser.nextToken(); // get the next token - presumably a field name for the next post
        }//ww  w .  jav  a  2 s  .  c  o  m
        jsonParser.nextToken(); // skip end token
    } else {
        throw new IOException("Improperly formed JSON - expected an OBJECT_START token, but got "
                + jsonParser.getCurrentToken().toString());
    }
}

From source file:com.adobe.communities.ugc.migration.importer.UGCImportHelper.java

public void importForumContent(final JsonParser jsonParser, final Resource resource,
        final ResourceResolver resolver) throws ServletException, IOException {
    if (jsonParser.getCurrentToken().equals(JsonToken.START_OBJECT)) {
        jsonParser.nextToken(); // advance to first key in the object - should be the id value of the old post
        while (jsonParser.getCurrentToken().equals(JsonToken.FIELD_NAME)) {
            extractTopic(jsonParser, resource, resolver, forumOperations);
            jsonParser.nextToken(); // get the next token - presumably a field name for the next post
        }//from  ww  w.  j av a 2 s .  c o m
        jsonParser.nextToken(); // skip end token
    } else {
        throw new IOException("Improperly formed JSON - expected an OBJECT_START token, but got "
                + jsonParser.getCurrentToken().toString());
    }
}

From source file:com.adobe.communities.ugc.migration.importer.UGCImportHelper.java

public void importCommentsContent(final JsonParser jsonParser, final Resource resource,
        final ResourceResolver resolver) throws ServletException, IOException {
    if (jsonParser.getCurrentToken().equals(JsonToken.START_OBJECT)) {
        jsonParser.nextToken(); // advance to first key in the object - should be the id value of the old post
        while (jsonParser.getCurrentToken().equals(JsonToken.FIELD_NAME)) {
            extractTopic(jsonParser, resource, resolver, commentOperations);
            jsonParser.nextToken(); // get the next token - presumably a field name for the next post
        }/*  w  w  w .  ja  va 2s  .c o  m*/
        jsonParser.nextToken(); // skip end token
    } else {
        throw new IOException("Improperly formed JSON - expected an OBJECT_START token, but got "
                + jsonParser.getCurrentToken().toString());
    }
}

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

/**
 * Parses the metadata properties.//from  w w w  . ja  v a  2  s  . c om
 *
 * @param jp
 * @return index
 */
private int parseMetadataProperties(JsonParser jp, StringBuilder metadataBuilder, int fieldIndex)
        throws IOException {
    jp.nextToken();//START_OBJECT {
    while (jp.nextToken() != JsonToken.END_OBJECT) {
        String fieldName = jp.getText().toUpperCase(); //FIELD_NAME columnName            
        JsonToken value = jp.nextToken();
        if (value == JsonToken.VALUE_STRING) {
            metadataBuilder.append(fieldName).append(" VARCHAR");
            fieldIndex++;
        } else if (value == JsonToken.VALUE_TRUE) {
            metadataBuilder.append(fieldName).append(" BOOLEAN");
            fieldIndex++;
        } else if (value == JsonToken.VALUE_FALSE) {
            metadataBuilder.append(fieldName).append(" BOOLEAN");
            fieldIndex++;
        } else if (value == JsonToken.VALUE_NUMBER_FLOAT) {
            metadataBuilder.append(fieldName).append(" DOUBLE");
            fieldIndex++;
        } else if (value == JsonToken.VALUE_NUMBER_INT) {
            metadataBuilder.append(fieldName).append(" INT");
            fieldIndex++;
        } else if (value == JsonToken.VALUE_NULL) {
            metadataBuilder.append(fieldName).append(" VARCHAR");
            fieldIndex++;
        } else {
            // TODO: ignore value.
        }
        metadataBuilder.append(",");
    }
    return fieldIndex;
}

From source file:com.adobe.communities.ugc.migration.importer.UGCImportHelper.java

public void importJournalContent(final JsonParser jsonParser, final Resource resource,
        final ResourceResolver resolver) throws IOException, ServletException {

    if (jsonParser.getCurrentToken().equals(JsonToken.START_OBJECT)) {
        jsonParser.nextToken(); // advance to first key in the object - should be the id value of the old post
        while (jsonParser.getCurrentToken().equals(JsonToken.FIELD_NAME)) {
            extractTopic(jsonParser, resource, resolver, journalOperations);
            jsonParser.nextToken(); // get the next token - presumably a field name for the next post
        }//ww  w.  j  av a 2s .c  o m
        jsonParser.nextToken(); // skip end token
    } else {
        throw new IOException("Improperly formed JSON - expected an OBJECT_START token, but got "
                + jsonParser.getCurrentToken().toString());
    }
}

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

/**
 * Parses geometry metadata.//from   w  w  w. j a  va  2  s  .c  o  m
 *
 * @param jp
 * @param metadataBuilder
 */
private void parseGeometryMetadata(JsonParser jp, StringBuilder metadataBuilder)
        throws IOException, SQLException {
    jp.nextToken(); //START_OBJECT {
    jp.nextToken(); // FIELD_NAME type     
    jp.nextToken(); //VALUE_STRING Point
    String geomType = jp.getText();
    if (geomType.equalsIgnoreCase(GeoJsonField.POINT)) {
        checkCoordinates(jp, metadataBuilder, GeoJsonField.POINT);
    } else if (geomType.equalsIgnoreCase(GeoJsonField.LINESTRING)) {
        checkCoordinates(jp, metadataBuilder, GeoJsonField.LINESTRING);
    } else if (geomType.equalsIgnoreCase(GeoJsonField.POLYGON)) {
        checkCoordinates(jp, metadataBuilder, GeoJsonField.POLYGON);
    } else if (geomType.equalsIgnoreCase(GeoJsonField.MULTIPOINT)) {
        checkCoordinates(jp, metadataBuilder, GeoJsonField.MULTIPOINT);
    } else if (geomType.equalsIgnoreCase(GeoJsonField.MULTILINESTRING)) {
        checkCoordinates(jp, metadataBuilder, GeoJsonField.MULTILINESTRING);
    } else if (geomType.equalsIgnoreCase(GeoJsonField.MULTIPOLYGON)) {
        checkCoordinates(jp, metadataBuilder, GeoJsonField.MULTIPOLYGON);
    } else if (geomType.equalsIgnoreCase(GeoJsonField.GEOMETRYCOLLECTION)) {
        jp.nextToken();//START geometries array
        if (jp.getText().equalsIgnoreCase(GeoJsonField.GEOMETRIES)) {
            jp.skipChildren();
            if (isH2) {
                metadataBuilder.append("THE_GEOM GEOMETRY,");
            } else {
                metadataBuilder.append("THE_GEOM GEOMETRY(geometry,").append(parsedSRID).append("),");
            }
        } else {
            throw new SQLException(
                    "Malformed GeoJSON file. Expected 'geometries', found '" + jp.getText() + "'");
        }
    } else {
        throw new SQLException("Unsupported geometry : " + geomType);
    }
}

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

/**
 * Check if the geometry is well formatted and contained an array of coordinates.
 * //from   www.  ja v  a2s  . c om
 * @param jp
 * @param metadataBuilder
 * @throws SQLException
 * @throws IOException 
 */
private void checkCoordinates(JsonParser jp, StringBuilder metadataBuilder, String geometryType)
        throws SQLException, IOException {
    jp.nextToken(); // FIELD_NAME coordinates
    if (jp.getText().equalsIgnoreCase(GeoJsonField.COORDINATES)) {
        jp.nextToken();//START coordinates array
        jp.skipChildren();
        if (isH2) {
            metadataBuilder.append("THE_GEOM ").append(geometryType).append(",");
        } else {
            metadataBuilder.append("THE_GEOM GEOMETRY(").append(geometryType).append(",").append(parsedSRID)
                    .append("),");
        }
    } else {
        throw new SQLException("Malformed GeoJSON file. Expected 'coordinates', found '" + jp.getText() + "'");
    }
}

From source file:com.github.heuermh.personalgenome.client.converter.JacksonPersonalGenomeConverter.java

List<Ancestry> parseSubPopulation(final String id, final List<Ancestry> ancestries, final JsonParser parser)
        throws IOException {
    String label = null;/*from  w  w  w. j  a v  a 2  s  . c o  m*/
    double proportion = 0.0d;
    double unassigned = 0.0d;
    List<Ancestry> subPopulations = new ArrayList<Ancestry>();
    while (parser.nextToken() != JsonToken.END_ARRAY) {
        while (parser.nextToken() != JsonToken.END_OBJECT) {
            String field = parser.getCurrentName();
            parser.nextToken();

            if ("label".equals(field)) {
                label = parser.getText();
            } else if ("proportion".equals(field)) {
                proportion = Double.parseDouble(parser.getText());
            } else if ("unassigned".equals(field)) {
                unassigned = Double.parseDouble(parser.getText());
            } else if ("sub_populations".equals(field)) {
                subPopulations = parseSubPopulation(id, subPopulations, parser);
            }
        }
        Ancestry ancestry = new Ancestry(id, label, proportion, unassigned, subPopulations);
        ancestries.add(ancestry);
        label = null;
        proportion = 0.0d;
        unassigned = 0.0d;
        subPopulations.clear();
    }
    return ancestries;
}