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

Introduction

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

Prototype

public abstract boolean isClosed();

Source Link

Document

Method that can be called to determine whether this parser is closed or not.

Usage

From source file:org.onosproject.north.aaa.api.parser.impl.ApplicationParser.java

@Override
public Set<Application> parseJson(InputStream stream) throws IOException, ParseException {
    ObjectMapper mapper = new ObjectMapper();
    JsonNode jsonNode = mapper.readTree(stream);
    JsonParser jp = jsonNode.traverse();
    Set<Application> applicationSet = new HashSet<>();

    // continue parsing the token till the end of input is reached
    while (!jp.isClosed()) {
        // get the token
        JsonToken token = jp.nextToken();
        // if its the last token then we are done
        if (token == null) {
            break;
        }/*from   ww w .  j  a  v  a2  s  .  co m*/

        if (JsonToken.FIELD_NAME.equals(token) && "applications".equals(jp.getCurrentName())) {
            token = jp.nextToken();
            if (!JsonToken.START_ARRAY.equals(token)) {
                // bail out
                throw new ParseException("expected ARRAY after applications");
            }

            while (true) {
                token = jp.nextToken();
                if (JsonToken.END_ARRAY.equals(token)) {
                    // bail out
                    break;
                }

                if (JsonToken.START_OBJECT.equals(token)) {
                    Application app = jsonToApplication(jp);
                    applicationSet.add(app);
                }
            }
        }
    }
    return applicationSet;
}

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From source file:org.onosproject.north.aaa.api.parser.impl.ClientParser.java

@Override
public Set<ClientCredential> parseJson(InputStream stream) throws IOException, ParseException {
    ObjectMapper mapper = new ObjectMapper();
    JsonNode jsonNode = mapper.readTree(stream);
    JsonParser jp = jsonNode.traverse();
    Set<ClientCredential> clientSet = new HashSet<>();

    // continue parsing the token till the end of input is reached
    while (!jp.isClosed()) {
        // get the token
        JsonToken token = jp.nextToken();
        // if its the last token then we are done
        if (token == null) {
            break;
        }//w  w w .  ja  v  a 2s  . co  m

        if (JsonToken.FIELD_NAME.equals(token) && "clients".equals(jp.getCurrentName())) {
            token = jp.nextToken();
            if (!JsonToken.START_ARRAY.equals(token)) {
                // bail out
                throw new ParseException("expected ARRAY after clients");
            }

            while (true) {
                token = jp.nextToken();
                if (JsonToken.END_ARRAY.equals(token)) {
                    // bail out
                    break;
                }

                if (JsonToken.START_OBJECT.equals(token)) {
                    ClientCredential client = jsonToClientCredential(jp);
                    clientSet.add(client);
                }
            }
        }
    }
    return clientSet;
}

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From source file:org.onosproject.north.aaa.api.parser.impl.UserParser.java

@Override
public Set<User> parseJson(InputStream stream) throws IOException, ParseException {
    // begin parsing JSON to Application class
    ObjectMapper mapper = new ObjectMapper();
    JsonNode jsonNode = mapper.readTree(stream);
    JsonParser jp = jsonNode.traverse();
    Set<User> userSet = new HashSet<>();

    // continue parsing the token till the end of input is reached
    while (!jp.isClosed()) {
        // get the token
        JsonToken token = jp.nextToken();
        // if its the last token then we are done
        if (token == null) {
            break;
        }/*from   ww w.j  a  va  2s  . c o m*/
        if (JsonToken.FIELD_NAME.equals(token) && "users".equals(jp.getCurrentName())) {
            token = jp.nextToken();
            if (!JsonToken.START_ARRAY.equals(token)) {
                // bail out
                throw new ParseException("expected ARRAY after users");
            }

            while (true) {
                token = jp.nextToken();
                if (JsonToken.END_ARRAY.equals(token)) {
                    // bail out
                    break;
                }
                if (JsonToken.START_OBJECT.equals(token)) {
                    User user = jsonToUser(jp);
                    userSet.add(user);
                }
            }
        }
    }
    return userSet;
}

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From source file:org.wso2.extension.siddhi.map.json.sourcemapper.JsonSourceMapper.java

private Event convertToSingleEventForDefaultMapping(Object eventObject) throws IOException {
    Event event = new Event(attributesSize);
    Object[] data = event.getData();
    JsonParser parser;
    int numberOfProvidedAttributes = 0;
    try {//  ww  w . ja  v a2  s. c o  m
        parser = factory.createParser(eventObject.toString());
    } catch (IOException e) {
        throw new SiddhiAppRuntimeException(
                "Initializing a parser failed for the event string." + eventObject.toString());
    }
    int position;
    while (!parser.isClosed()) {
        JsonToken jsonToken = parser.nextToken();
        if (JsonToken.START_OBJECT.equals(jsonToken)) {
            parser.nextToken();
            if (DEFAULT_JSON_EVENT_IDENTIFIER.equalsIgnoreCase(parser.getText())) {
                parser.nextToken();
            } else {
                log.error("Default json message " + eventObject
                        + " contains an invalid event identifier. Required \"event\", " + "but found \""
                        + parser.getText() + "\". Hence dropping the message.");
                return null;
            }
        } else if (JsonToken.FIELD_NAME.equals(jsonToken)) {
            String key = parser.getCurrentName();
            numberOfProvidedAttributes++;
            position = findDefaultMappingPosition(key);
            if (position == -1) {
                log.error("Stream \"" + streamDefinition.getId() + "\" does not have an attribute named \""
                        + key + "\", but the received event " + eventObject.toString()
                        + " does. Hence dropping the message.");
                return null;
            }
            jsonToken = parser.nextToken();
            Attribute.Type type = streamAttributes.get(position).getType();

            if (JsonToken.VALUE_NULL.equals(jsonToken)) {
                data[position] = null;
            } else {
                switch (type) {
                case BOOL:
                    if (JsonToken.VALUE_TRUE.equals(jsonToken) || JsonToken.VALUE_FALSE.equals(jsonToken)) {
                        data[position] = parser.getValueAsBoolean();
                    } else {
                        log.error("Json message " + eventObject.toString()
                                + " contains incompatible attribute types and values. Value " + parser.getText()
                                + " is not compatible with type BOOL. " + "Hence dropping the message.");
                        return null;
                    }
                    break;
                case INT:
                    if (JsonToken.VALUE_NUMBER_INT.equals(jsonToken)) {
                        data[position] = parser.getValueAsInt();
                    } else {
                        log.error("Json message " + eventObject.toString()
                                + " contains incompatible attribute types and values. Value " + parser.getText()
                                + " is not compatible with type INT. " + "Hence dropping the message.");
                        return null;
                    }
                    break;
                case DOUBLE:
                    if (JsonToken.VALUE_NUMBER_FLOAT.equals(jsonToken)) {
                        data[position] = parser.getValueAsDouble();
                    } else {
                        log.error("Json message " + eventObject.toString()
                                + " contains incompatible attribute types and values. Value " + parser.getText()
                                + " is not compatible with type DOUBLE. " + "Hence dropping the message.");
                        return null;
                    }
                    break;
                case STRING:
                    if (JsonToken.VALUE_STRING.equals(jsonToken)) {
                        data[position] = parser.getValueAsString();
                    } else {
                        log.error("Json message " + eventObject.toString()
                                + " contains incompatible attribute types and values. Value " + parser.getText()
                                + " is not compatible with type STRING. " + "Hence dropping the message.");
                        return null;
                    }
                    break;
                case FLOAT:
                    if (JsonToken.VALUE_NUMBER_FLOAT.equals(jsonToken)
                            || JsonToken.VALUE_NUMBER_INT.equals(jsonToken)) {
                        data[position] = attributeConverter.getPropertyValue(parser.getValueAsString(),
                                Attribute.Type.FLOAT);
                    } else {
                        log.error("Json message " + eventObject.toString()
                                + " contains incompatible attribute types and values. Value " + parser.getText()
                                + " is not compatible with type FLOAT. " + "Hence dropping the message.");
                        return null;
                    }
                    break;
                case LONG:
                    if (JsonToken.VALUE_NUMBER_INT.equals(jsonToken)) {
                        data[position] = parser.getValueAsLong();
                    } else {
                        log.error("Json message " + eventObject.toString()
                                + " contains incompatible attribute types and values. Value " + parser.getText()
                                + " is not compatible with type LONG. " + "Hence dropping the message.");
                        return null;
                    }
                    break;
                default:
                    return null;
                }
            }
        }
    }

    if (failOnMissingAttribute && (numberOfProvidedAttributes != attributesSize)) {
        log.error("Json message " + eventObject.toString()
                + " contains missing attributes. Hence dropping the message.");
        return null;
    }
    return event;
}

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From source file:org.talend.dataprep.api.dataset.LightweightExportableDataSetUtils.java

/**
 * Reads token of the specified JsonParser and returns a list of column metadata.
 *
 * @param jsonParser the jsonParser whose next tokens are supposed to represent a list of column metadata
 * @return The column metadata parsed from JSON parser.
 * @throws IOException In case of JSON exception related error.
 */// www.  ja  v  a2 s.co m
private static List<ColumnMetadata> parseAnArrayOfColumnMetadata(JsonParser jsonParser) throws IOException {
    try {
        List<ColumnMetadata> columns = new ArrayList<>();
        // skip the array beginning [
        jsonParser.nextToken();
        while (jsonParser.nextToken() != JsonToken.END_ARRAY && !jsonParser.isClosed()) {
            ColumnMetadata columnMetadata = jsonParser.readValueAs(ColumnMetadata.class);
            columns.add(columnMetadata);
        }
        if (columns.isEmpty()) {
            throw new IllegalArgumentException(
                    "No column metadata has been retrieved when trying to parse the retrieved data set.");
        }
        return columns;
    } catch (IOException e) {
        throw new IOExceptionWithCause("Unable to parse and retrieve the list of column metadata", e);
    }
}

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From source file:org.talend.dataprep.api.dataset.LightweightExportableDataSetUtils.java

private static RowMetadata parseDataSetMetadataAndReturnRowMetadata(JsonParser jsonParser) throws IOException {
    try {//from w ww.j  a  va 2 s  .  c om
        RowMetadata rowMetadata = null;
        while (jsonParser.nextToken() != JsonToken.END_OBJECT && !jsonParser.isClosed()) {
            String currentField = jsonParser.getCurrentName();
            if (StringUtils.equalsIgnoreCase("columns", currentField)) {
                rowMetadata = new RowMetadata(parseAnArrayOfColumnMetadata(jsonParser));
            }
        }
        LOGGER.debug("Skipping data to go back to the outer json object");
        while (jsonParser.getParsingContext().getParent().getCurrentName() != null && !jsonParser.isClosed()) {
            jsonParser.nextToken();
        }
        return rowMetadata;
    } catch (IOException e) {
        throw new IOExceptionWithCause("Unable to parse and retrieve the row metadata", e);
    }
}

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From source file:org.talend.dataprep.api.dataset.LightweightExportableDataSetUtils.java

private static LightweightExportableDataSet parseRecords(JsonParser jsonParser, RowMetadata rowMetadata,
        String joinOnColumn) throws IOException {
    try {// w  w  w.j a  v  a 2  s .  co  m
        LightweightExportableDataSet lookupDataset = new LightweightExportableDataSet();
        lookupDataset.setMetadata(rowMetadata);
        jsonParser.nextToken();
        while (jsonParser.nextToken() != JsonToken.END_ARRAY && !jsonParser.isClosed()) {
            Map<String, String> values = jsonParser.readValueAs(Map.class);
            lookupDataset.addRecord(values.get(joinOnColumn), values);
        }
        if (lookupDataset.isEmpty()) {
            throw new IllegalArgumentException(
                    "No lookup record has been retrieved when trying to parse the retrieved data set.");
        }
        return lookupDataset;
    } catch (IOException e) {
        throw new IOExceptionWithCause("Unable to parse and retrieve the records of the data set", e);
    }
}

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