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:net.opentsdb.utils.TestJSON.java

/** Helper to parse an input stream into a map */
private HashMap<String, String> parseToMap(final InputStream is) throws Exception {
    JsonParser jp = JSON.parseToStream(is);
    HashMap<String, String> map = new HashMap<String, String>();
    String field = "";
    String value;/*from www. ja v a  2s.  co  m*/
    while (jp.nextToken() != null) {
        if (jp.getCurrentToken() == JsonToken.FIELD_NAME && jp.getCurrentName() != null) {
            field = jp.getCurrentName();
        } else if (jp.getCurrentToken() == JsonToken.VALUE_STRING) {
            value = jp.getText();
            map.put(field, value);
        }
    }
    return map;
}

From source file:com.reprezen.swagedit.model.NodeDeserializer.java

protected ArrayNode deserializeArrayNode(JsonParser p, DeserializationContext context,
        JsonLocation startLocation) throws IOException {
    final Model model = (Model) context.getAttribute(ATTRIBUTE_MODEL);
    final AbstractNode parent = (AbstractNode) context.getAttribute(ATTRIBUTE_PARENT);
    final JsonPointer ptr = (JsonPointer) context.getAttribute(ATTRIBUTE_POINTER);

    ArrayNode node = model.arrayNode(parent, ptr);

    int i = 0;//ww w  .ja  v  a 2s  .  c om
    while (p.nextToken() != JsonToken.END_ARRAY) {
        JsonPointer pp = JsonPointer.compile(ptr.toString() + "/" + i);

        context.setAttribute(ATTRIBUTE_PARENT, node);
        context.setAttribute(ATTRIBUTE_POINTER, pp);

        AbstractNode v = deserialize(p, context);

        node.add(v);
        i++;
    }

    node.setStartLocation(createLocation(startLocation));
    node.setEndLocation(createLocation(p.getCurrentLocation()));
    return node;
}

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

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

    final AbstractEntityType entityType = ODataVersion.V3 == client.getWorkingVersion()
            ? new com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityType()
            : new com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityType();

    for (; jp.getCurrentToken() != JsonToken.END_OBJECT; jp.nextToken()) {
        final JsonToken token = jp.getCurrentToken();
        if (token == JsonToken.FIELD_NAME) {
            if ("Name".equals(jp.getCurrentName())) {
                entityType.setName(jp.nextTextValue());
            } else if ("Abstract".equals(jp.getCurrentName())) {
                entityType.setAbstractEntityType(BooleanUtils.toBoolean(jp.nextTextValue()));
            } else if ("BaseType".equals(jp.getCurrentName())) {
                entityType.setBaseType(jp.nextTextValue());
            } else if ("OpenType".equals(jp.getCurrentName())) {
                entityType.setOpenType(BooleanUtils.toBoolean(jp.nextTextValue()));
            } else if ("HasStream".equals(jp.getCurrentName())) {
                entityType.setHasStream(BooleanUtils.toBoolean(jp.nextTextValue()));
            } else if ("Key".equals(jp.getCurrentName())) {
                jp.nextToken();// ww  w.j  a  v  a 2 s. c o  m
                entityType.setKey(jp.getCodec().readValue(jp, EntityKey.class));
            } else if ("Property".equals(jp.getCurrentName())) {
                jp.nextToken();
                if (entityType instanceof com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityType) {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityType) entityType)
                            .getProperties().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v3.Property.class));
                } else {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityType) entityType)
                            .getProperties().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v4.Property.class));
                }
            } else if ("NavigationProperty".equals(jp.getCurrentName())) {
                jp.nextToken();
                if (entityType instanceof com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityType) {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v3.EntityType) entityType)
                            .getNavigationProperties().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v3.NavigationProperty.class));
                } else {
                    ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityType) entityType)
                            .getNavigationProperties().add(jp.getCodec().readValue(jp,
                                    com.msopentech.odatajclient.engine.data.metadata.edm.v4.NavigationProperty.class));
                }
            } else if ("Annotation".equals(jp.getCurrentName())) {
                jp.nextToken();
                ((com.msopentech.odatajclient.engine.data.metadata.edm.v4.EntityType) entityType)
                        .setAnnotation(jp.getCodec().readValue(jp, Annotation.class));
            }
        }
    }

    return entityType;
}

From source file:com.bazaarvoice.jsonpps.PrettyPrintJson.java

public void prettyPrint(List<File> inputFiles, File outputFile) throws IOException {
    JsonFactory factory = new JsonFactory();
    factory.disable(JsonFactory.Feature.INTERN_FIELD_NAMES);
    if (!strict) {
        factory.enable(JsonParser.Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER);
        factory.enable(JsonParser.Feature.ALLOW_COMMENTS);
        factory.enable(JsonParser.Feature.ALLOW_NON_NUMERIC_NUMBERS);
        factory.enable(JsonParser.Feature.ALLOW_NUMERIC_LEADING_ZEROS);
        factory.enable(JsonParser.Feature.ALLOW_SINGLE_QUOTES);
        factory.enable(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS);
        factory.enable(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES);
    }/*from w w w . jav  a  2s  .  co m*/

    ObjectMapper mapper = null;
    if (sortKeys) {
        mapper = new ObjectMapper(factory);
        mapper.enable(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS);
        mapper.disable(SerializationFeature.FLUSH_AFTER_WRITE_VALUE);
    }

    // Open the output stream and create the Json emitter.
    JsonGenerator generator;
    File tempOutputFile = null;
    if (STDINOUT.equals(outputFile)) {
        generator = factory.createGenerator(stdout, JsonEncoding.UTF8);
    } else if (!caseInsensitiveContains(inputFiles, outputFile)) {
        generator = factory.createGenerator(outputFile, JsonEncoding.UTF8);
    } else {
        // Writing to an input file.. use a temp file to stage the output until we're done.
        tempOutputFile = getTemporaryFileFor(outputFile);
        generator = factory.createGenerator(tempOutputFile, JsonEncoding.UTF8);
    }
    try {
        // Separate top-level objects by a newline in the output.
        String newline = System.getProperty("line.separator");
        generator.setPrettyPrinter(new DefaultPrettyPrinter(newline));

        if (wrap) {
            generator.writeStartArray();
        }

        for (File inputFile : inputFiles) {
            JsonParser parser;
            if (STDINOUT.equals(inputFile)) {
                parser = factory.createParser(stdin);
            } else {
                parser = factory.createParser(inputFile);
            }
            try {
                while (parser.nextToken() != null) {
                    copyCurrentStructure(parser, mapper, 0, generator);
                }
            } finally {
                parser.close();
            }
        }

        if (wrap) {
            generator.writeEndArray();
        }

        generator.writeRaw(newline);
    } finally {
        generator.close();
    }
    if (tempOutputFile != null && !tempOutputFile.renameTo(outputFile)) {
        System.err.println("error: unable to rename temporary file to output: " + outputFile);
        System.exit(1);
    }
}

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  ww  w  .  j  a v a 2  s  .  c o  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 expect(JsonParser parser, JsonToken token) throws IOException {
    final JsonToken t = parser.nextToken();
    if (t != token) {
        throw new RuntimeException("expected " + token + ", got " + t);
    }/*from   w w w .j  av a  2  s. c  o m*/
}

From source file:de.konqi.fitapi.auth.PublicKeysManager.java

/**
 * Forces a refresh of the public certificates downloaded from {@link #getPublicCertsEncodedUrl}.
 *
 * <p>//  w w  w  . j  a  v a  2s .co m
 * This method is automatically called from {@link #getPublicKeys()} if the public keys have not
 * yet been initialized or if the expiration time is very close, so normally this doesn't need to
 * be called. Only call this method to explicitly force the public keys to be updated.
 * </p>
 */
public PublicKeysManager refresh() throws GeneralSecurityException, IOException {
    lock.lock();
    try {
        publicKeys = new ArrayList<PublicKey>();
        // HTTP request to public endpoint
        CertificateFactory factory = SecurityUtils.getX509CertificateFactory();
        HttpResponse certsResponse = transport.createRequestFactory()
                .buildGetRequest(new GenericUrl(publicCertsEncodedUrl)).execute();
        expirationTimeMilliseconds = clock.currentTimeMillis()
                + getCacheTimeInSec(certsResponse.getHeaders()) * 1000;
        // parse each public key in the JSON response
        JsonParser parser = jsonFactory.createJsonParser(certsResponse.getContent());
        JsonToken currentToken = parser.getCurrentToken();
        // token is null at start, so get next token
        if (currentToken == null) {
            currentToken = parser.nextToken();
        }
        Preconditions.checkArgument(currentToken == JsonToken.START_OBJECT);
        try {
            while (parser.nextToken() != JsonToken.END_OBJECT) {
                parser.nextToken();
                String certValue = parser.getText();
                X509Certificate x509Cert = (X509Certificate) factory
                        .generateCertificate(new ByteArrayInputStream(StringUtils.getBytesUtf8(certValue)));
                publicKeys.add(x509Cert.getPublicKey());
            }
            publicKeys = Collections.unmodifiableList(publicKeys);
        } finally {
            parser.close();
        }
        return this;
    } finally {
        lock.unlock();
    }
}

From source file:org.graylog2.gelfclient.encoder.GelfMessageJsonEncoderTest.java

@Test
public void testOptionalFullMessage() throws Exception {
    final EmbeddedChannel channel = new EmbeddedChannel(new GelfMessageJsonEncoder());
    final GelfMessage message = new GelfMessageBuilder("test").build();
    assertTrue(channel.writeOutbound(message));
    assertTrue(channel.finish());//  w  w  w.  j  a v  a 2 s  . c  o  m

    final ByteBuf byteBuf = (ByteBuf) channel.readOutbound();
    final byte[] bytes = new byte[byteBuf.readableBytes()];
    byteBuf.getBytes(0, bytes).release();
    final JsonFactory json = new JsonFactory();
    final JsonParser parser = json.createParser(bytes);

    String version = null;
    Number timestamp = null;
    String host = null;
    String short_message = null;
    String full_message = null;
    Number level = null;

    while (parser.nextToken() != JsonToken.END_OBJECT) {
        String key = parser.getCurrentName();

        if (key == null) {
            continue;
        }

        parser.nextToken();

        switch (key) {
        case "version":
            version = parser.getText();
            break;
        case "timestamp":
            timestamp = parser.getNumberValue();
            break;
        case "host":
            host = parser.getText();
            break;
        case "short_message":
            short_message = parser.getText();
            break;
        case "full_message":
            full_message = parser.getText();
            break;
        case "level":
            level = parser.getNumberValue();
            break;
        default:
            throw new Exception("Found unexpected field in JSON payload: " + key);
        }
    }

    assertEquals(message.getVersion().toString(), version);
    assertEquals(message.getTimestamp(), timestamp);
    assertEquals(message.getHost(), host);
    assertEquals(message.getMessage(), short_message);
    assertNull(full_message);
    assertEquals(message.getLevel().getNumericLevel(), level);
}

From source file:com.tlongdev.bktf.interactor.TlongdevPriceListInteractor.java

private int parseJson(InputStream inputStream) throws IOException {
    //Create a parser from the input stream for fast parsing and low impact on memory
    JsonFactory factory = new JsonFactory();
    JsonParser parser = factory.createParser(inputStream);

    Vector<ContentValues> cVVector = new Vector<>();
    int retVal = 0;
    int count = 0;

    //Not a JSON if it doesn't start with START OBJECT
    if (parser.nextToken() != JsonToken.START_OBJECT) {
        return -1;
    }/*w w  w  .  j av  a  2s  .  c o  m*/

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

        switch (name) {
        case "success":
            if (parser.getIntValue() == 0) {
                retVal = 1;
            }
            break;
        case "message":
            errorMessage = parser.getText();
            break;
        case "count":
            count = parser.getIntValue();
            break;
        case "prices":

            while (parser.nextToken() != JsonToken.END_ARRAY) {
                ContentValues values = buildContentValues(parser);
                cVVector.add(values);
            }

            if (cVVector.size() > 0) {
                ContentValues[] cvArray = new ContentValues[cVVector.size()];
                cVVector.toArray(cvArray);
                //Insert all the data into the database
                rowsInserted = mContext.getContentResolver().bulkInsert(PriceEntry.CONTENT_URI, cvArray);
                Log.v(LOG_TAG, "inserted " + rowsInserted + " rows into prices table");
            }
            break;
        }
    }

    parser.close();

    return retVal;
}

From source file:org.graylog2.gelfclient.encoder.GelfMessageJsonEncoderTest.java

@Test
public void testNullLevel() throws Exception {
    final EmbeddedChannel channel = new EmbeddedChannel(new GelfMessageJsonEncoder());
    final GelfMessage message = new GelfMessageBuilder("test").build();

    message.setLevel(null);/*w  ww  . j  ava 2s.c  o m*/

    assertTrue(channel.writeOutbound(message));
    assertTrue(channel.finish());

    final ByteBuf byteBuf = (ByteBuf) channel.readOutbound();
    final byte[] bytes = new byte[byteBuf.readableBytes()];
    byteBuf.getBytes(0, bytes).release();
    final JsonFactory json = new JsonFactory();
    final JsonParser parser = json.createParser(bytes);

    String version = null;
    Number timestamp = null;
    String host = null;
    String short_message = null;
    String full_message = null;
    Number level = null;

    while (parser.nextToken() != JsonToken.END_OBJECT) {
        String key = parser.getCurrentName();

        if (key == null) {
            continue;
        }

        parser.nextToken();

        switch (key) {
        case "version":
            version = parser.getText();
            break;
        case "timestamp":
            timestamp = parser.getNumberValue();
            break;
        case "host":
            host = parser.getText();
            break;
        case "short_message":
            short_message = parser.getText();
            break;
        case "full_message":
            full_message = parser.getText();
            break;
        case "level":
            level = parser.getNumberValue();
            break;
        default:
            throw new Exception("Found unexpected field in JSON payload: " + key);
        }
    }

    assertEquals(message.getVersion().toString(), version);
    assertEquals(message.getTimestamp(), timestamp);
    assertEquals(message.getHost(), host);
    assertEquals(message.getMessage(), short_message);
    assertNull(full_message);
    assertNull(level);
}