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

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

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Introduction

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

Prototype

public abstract JsonToken getCurrentToken();

Source Link

Document

Accessor to find which token parser currently points to, if any; null will be returned if none.

Usage

From source file:org.emfjson.jackson.streaming.StreamReader.java

@SuppressWarnings("unchecked")
protected JsonToken parseEntry(JsonParser parser, EReference reference, EObject owner) throws IOException {

    EList<EObject> values = null;/*from w w w .  j a v a2s . c  o m*/
    if (reference.isMany()) {
        values = (EList<EObject>) owner.eGet(reference);
    }

    while (parser.nextToken() != JsonToken.END_OBJECT) {
        final String field = parser.getCurrentName();
        final String value = parser.nextTextValue();

        if (reference.isMany() && values != null) {
            values.add(createEntry(field, value));
        } else {
            owner.eSet(reference, createEntry(field, value));
        }
    }

    return parser.getCurrentToken();
}

From source file:com.github.shyiko.jackson.module.advice.AdvisedBeanDeserializer.java

@SuppressWarnings("resource")
protected Object deserializeWithUnwrapped(JsonParser jp, DeserializationContext ctxt, Object bean)
        throws IOException {
    JsonToken t = jp.getCurrentToken();
    if (t == JsonToken.START_OBJECT) {
        t = jp.nextToken();/*w ww  . ja va  2s . c  o  m*/
    }
    TokenBuffer tokens = new TokenBuffer(jp);
    tokens.writeStartObject();
    final Class<?> activeView = _needViewProcesing ? ctxt.getActiveView() : null;
    beanDeserializerAdvice.before(bean, jp, ctxt);
    for (; t == JsonToken.FIELD_NAME; t = jp.nextToken()) {
        String propName = jp.getCurrentName();

        if (beanDeserializerAdvice.intercept(bean, propName, jp, ctxt)) {
            continue;
        }

        SettableBeanProperty prop = _beanProperties.find(propName);
        jp.nextToken();
        if (prop != null) { // normal case
            if (activeView != null && !prop.visibleInView(activeView)) {
                jp.skipChildren();
                continue;
            }
            try {
                prop.deserializeAndSet(jp, ctxt, bean);
            } catch (Exception e) {
                wrapAndThrow(e, bean, propName, ctxt);
            }
            continue;
        }
        if (_ignorableProps != null && _ignorableProps.contains(propName)) {
            handleIgnoredProperty(jp, ctxt, bean, propName);
            continue;
        }
        // but... others should be passed to unwrapped property deserializers
        tokens.writeFieldName(propName);
        tokens.copyCurrentStructure(jp);
        // how about any setter? We'll get copies but...
        if (_anySetter != null) {
            _anySetter.deserializeAndSet(jp, ctxt, bean, propName);
        }
    }
    tokens.writeEndObject();
    _unwrappedPropertyHandler.processUnwrapped(jp, ctxt, bean, tokens);
    beanDeserializerAdvice.after(bean, jp, ctxt);
    return bean;
}

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

public void importCalendarContent(final JsonParser jsonParser, final Resource resource) throws IOException {
    if (jsonParser.getCurrentToken().equals(JsonToken.START_ARRAY)) {
        jsonParser.nextToken(); // skip START_ARRAY here
    } else {// w  ww.  j a v a  2  s  .c  o  m
        throw new IOException("Improperly formed JSON - expected an START_ARRAY token, but got "
                + jsonParser.getCurrentToken().toString());
    }
    if (jsonParser.getCurrentToken().equals(JsonToken.START_OBJECT)) {
        while (jsonParser.getCurrentToken().equals(JsonToken.START_OBJECT)) {
            extractEvent(jsonParser, resource);
            jsonParser.nextToken(); // get the next token - either a start object token or an end array token
        }
    } else {
        throw new IOException("Improperly formed JSON - expected an OBJECT_START token, but got "
                + jsonParser.getCurrentToken().toString());
    }
}

From source file:com.github.shyiko.jackson.module.advice.AdvisedBeanDeserializer.java

protected Object deserializeWithView(JsonParser jp, DeserializationContext ctxt, Object bean,
        Class<?> activeView) throws IOException {
    beanDeserializerAdvice.before(bean, jp, ctxt);
    JsonToken t = jp.getCurrentToken();
    for (; t == JsonToken.FIELD_NAME; t = jp.nextToken()) {
        String propName = jp.getCurrentName();
        // Skip field name:
        jp.nextToken();//from   ww  w  .  j  a va 2  s  . co m

        if (beanDeserializerAdvice.intercept(bean, propName, jp, ctxt)) {
            continue;
        }

        SettableBeanProperty prop = _beanProperties.find(propName);
        if (prop != null) {
            if (!prop.visibleInView(activeView)) {
                jp.skipChildren();
                continue;
            }
            try {
                prop.deserializeAndSet(jp, ctxt, bean);
            } catch (Exception e) {
                wrapAndThrow(e, bean, propName, ctxt);
            }
            continue;
        }
        handleUnknownVanilla(jp, ctxt, bean, propName);
    }
    beanDeserializerAdvice.after(bean, jp, ctxt);
    return bean;
}

From source file:com.github.shyiko.jackson.module.advice.AdvisedBeanDeserializer.java

/**
 * Streamlined version that is only used when no "special"
 * features are enabled.//  ww w .j a  va 2s .c  o  m
 */
private Object vanillaDeserialize(JsonParser jp, DeserializationContext ctxt, JsonToken t) throws IOException {
    final Object bean = _valueInstantiator.createUsingDefault(ctxt);
    beanDeserializerAdvice.before(bean, jp, ctxt);
    for (; jp.getCurrentToken() != JsonToken.END_OBJECT; jp.nextToken()) {
        String propName = jp.getCurrentName();
        // Skip field name:
        jp.nextToken();

        if (beanDeserializerAdvice.intercept(bean, propName, jp, ctxt)) {
            continue;
        }

        SettableBeanProperty prop = _beanProperties.find(propName);
        if (prop != null) { // normal case
            try {
                prop.deserializeAndSet(jp, ctxt, bean);
            } catch (Exception e) {
                wrapAndThrow(e, bean, propName, ctxt);
            }
        } else {
            handleUnknownVanilla(jp, ctxt, bean, propName);
        }
    }
    beanDeserializerAdvice.after(bean, jp, ctxt);
    return bean;
}

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
        }//from   w w w. j  a v a  2s. co 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
        }/*www.  ja  v 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: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
        }//from  www .  j  a va 2  s.  c  om
        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 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
        }/*from  w  ww. j a v 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.microsoft.azure.storage.table.CEKReturn.java

/**
 * Reserved for internal use. Parses the operation response as an entity. Parses the result returned in the
 * specified stream in JSON format into a {@link TableResult} containing an entity of the specified class type
 * projected using the specified resolver.
 * /*from  w  w w. j a v a 2s . com*/
 * @param parser
 *            The <code>JsonParser</code> to read the data to parse from.
 * @param clazzType
 *            The class type <code>T</code> implementing {@link TableEntity} for the entity returned. Set to
 *            <code>null</code> to ignore the returned entity and copy only response properties into the
 *            {@link TableResult} object.
 * @param resolver
 *            An {@link EntityResolver} instance to project the entity into an instance of type <code>R</code>. Set
 *            to <code>null</code> to return the entity as an instance of the class type <code>T</code>.
 * @param options
 *            A {@link TableRequestOptions} object that specifies execution options such as retry policy and timeout
 *            settings for the operation.
 * @param opContext
 *            An {@link OperationContext} object used to track the execution of the operation.
 * @return
 *         A {@link TableResult} containing the parsed entity result of the operation.
 * @throws IOException
 *             if an error occurs while accessing the stream.
 * @throws InstantiationException
 *             if an error occurs while constructing the result.
 * @throws IllegalAccessException
 *             if an error occurs in reflection while parsing the result.
 * @throws StorageException
 *             if a storage service error occurs.
 * @throws IOException
 *             if an error occurs while accessing the stream.
 * @throws JsonParseException
 *             if an error occurs while parsing the stream.
 */
private static <T extends TableEntity, R> TableResult parseJsonEntity(final JsonParser parser,
        final Class<T> clazzType, HashMap<String, PropertyPair> classProperties,
        final EntityResolver<R> resolver, final TableRequestOptions options, final OperationContext opContext)
        throws JsonParseException, IOException, StorageException, InstantiationException,
        IllegalAccessException {
    final TableResult res = new TableResult();

    HashMap<String, EntityProperty> properties = new HashMap<String, EntityProperty>();

    if (!parser.hasCurrentToken()) {
        parser.nextToken();
    }

    JsonUtilities.assertIsStartObjectJsonToken(parser);

    parser.nextToken();

    // get all metadata, if present
    while (parser.getCurrentName().startsWith(ODataConstants.ODATA_PREFIX)) {
        final String name = parser.getCurrentName().substring(ODataConstants.ODATA_PREFIX.length());

        // get the value token
        parser.nextToken();

        if (name.equals(ODataConstants.ETAG)) {
            String etag = parser.getValueAsString();
            res.setEtag(etag);
        }

        // get the key token
        parser.nextToken();
    }

    if (resolver == null && clazzType == null) {
        return res;
    }

    // get object properties
    while (parser.getCurrentToken() != JsonToken.END_OBJECT) {
        String key = Constants.EMPTY_STRING;
        String val = Constants.EMPTY_STRING;
        EdmType edmType = null;

        // checks if this property is preceded by an OData property type annotation
        if (options.getTablePayloadFormat() != TablePayloadFormat.JsonNoMetadata
                && parser.getCurrentName().endsWith(ODataConstants.ODATA_TYPE_SUFFIX)) {
            parser.nextToken();
            edmType = EdmType.parse(parser.getValueAsString());

            parser.nextValue();
            key = parser.getCurrentName();
            val = parser.getValueAsString();
        } else {
            key = parser.getCurrentName();

            parser.nextToken();
            val = parser.getValueAsString();
            edmType = evaluateEdmType(parser.getCurrentToken(), parser.getValueAsString());
        }

        final EntityProperty newProp = new EntityProperty(val, edmType);
        newProp.setDateBackwardCompatibility(options.getDateBackwardCompatibility());
        properties.put(key, newProp);

        parser.nextToken();
    }

    String partitionKey = null;
    String rowKey = null;
    Date timestamp = null;
    String etag = null;

    // Remove core properties from map and set individually
    EntityProperty tempProp = properties.remove(TableConstants.PARTITION_KEY);
    if (tempProp != null) {
        partitionKey = tempProp.getValueAsString();
    }

    tempProp = properties.remove(TableConstants.ROW_KEY);
    if (tempProp != null) {
        rowKey = tempProp.getValueAsString();
    }

    tempProp = properties.remove(TableConstants.TIMESTAMP);
    if (tempProp != null) {
        tempProp.setDateBackwardCompatibility(false);
        timestamp = tempProp.getValueAsDate();

        if (res.getEtag() == null) {
            etag = getETagFromTimestamp(tempProp.getValueAsString());
            res.setEtag(etag);
        }
    }

    // Deserialize the metadata property value to get the names of encrypted properties so that they can be parsed correctly below.
    Key cek = null;
    Boolean isJavaV1 = true;
    EncryptionData encryptionData = new EncryptionData();
    HashSet<String> encryptedPropertyDetailsSet = null;
    if (options.getEncryptionPolicy() != null) {
        EntityProperty propertyDetailsProperty = properties
                .get(Constants.EncryptionConstants.TABLE_ENCRYPTION_PROPERTY_DETAILS);
        EntityProperty keyProperty = properties.get(Constants.EncryptionConstants.TABLE_ENCRYPTION_KEY_DETAILS);

        if (propertyDetailsProperty != null && !propertyDetailsProperty.getIsNull() && keyProperty != null
                && !keyProperty.getIsNull()) {
            // Decrypt the metadata property value to get the names of encrypted properties.
            CEKReturn cekReturn = options.getEncryptionPolicy().decryptMetadataAndReturnCEK(partitionKey,
                    rowKey, keyProperty, propertyDetailsProperty, encryptionData);

            cek = cekReturn.key;
            isJavaV1 = cekReturn.isJavaV1;
            properties.put(Constants.EncryptionConstants.TABLE_ENCRYPTION_PROPERTY_DETAILS,
                    propertyDetailsProperty);

            encryptedPropertyDetailsSet = parsePropertyDetails(propertyDetailsProperty);
        } else {
            if (options.requireEncryption() != null && options.requireEncryption()) {
                throw new StorageException(StorageErrorCodeStrings.DECRYPTION_ERROR,
                        SR.ENCRYPTION_DATA_NOT_PRESENT_ERROR, null);
            }
        }
    }

    // do further processing for type if JsonNoMetdata by inferring type information via resolver or clazzType
    if (options.getTablePayloadFormat() == TablePayloadFormat.JsonNoMetadata
            && (options.getPropertyResolver() != null || clazzType != null)) {
        for (final Entry<String, EntityProperty> property : properties.entrySet()) {
            if (Constants.EncryptionConstants.TABLE_ENCRYPTION_KEY_DETAILS.equals(property.getKey())) {
                // This and the following check are required because in JSON no-metadata, the type information for 
                // the properties are not returned and users are not expected to provide a type for them. So based 
                // on how the user defined property resolvers treat unknown properties, we might get unexpected results.
                final EntityProperty newProp = new EntityProperty(property.getValue().getValueAsString(),
                        EdmType.STRING);
                properties.put(property.getKey(), newProp);
            } else if (Constants.EncryptionConstants.TABLE_ENCRYPTION_PROPERTY_DETAILS
                    .equals(property.getKey())) {
                if (options.getEncryptionPolicy() == null) {
                    final EntityProperty newProp = new EntityProperty(property.getValue().getValueAsString(),
                            EdmType.BINARY);
                    properties.put(property.getKey(), newProp);
                }
            } else if (options.getPropertyResolver() != null) {
                final String key = property.getKey();
                final String value = property.getValue().getValueAsString();
                EdmType edmType;

                // try to use the property resolver to get the type
                try {
                    edmType = options.getPropertyResolver().propertyResolver(partitionKey, rowKey, key, value);
                } catch (Exception e) {
                    throw new StorageException(StorageErrorCodeStrings.INTERNAL_ERROR, SR.CUSTOM_RESOLVER_THREW,
                            Constants.HeaderConstants.HTTP_UNUSED_306, null, e);
                }

                // try to create a new entity property using the returned type
                try {
                    final EntityProperty newProp = new EntityProperty(value,
                            isEncrypted(encryptedPropertyDetailsSet, key) ? EdmType.BINARY : edmType);
                    newProp.setDateBackwardCompatibility(options.getDateBackwardCompatibility());
                    properties.put(property.getKey(), newProp);
                } catch (IllegalArgumentException e) {
                    throw new StorageException(StorageErrorCodeStrings.INVALID_TYPE,
                            String.format(SR.FAILED_TO_PARSE_PROPERTY, key, value, edmType),
                            Constants.HeaderConstants.HTTP_UNUSED_306, null, e);
                }
            } else if (clazzType != null) {
                if (classProperties == null) {
                    classProperties = PropertyPair.generatePropertyPairs(clazzType);
                }
                PropertyPair propPair = classProperties.get(property.getKey());
                if (propPair != null) {
                    EntityProperty newProp;
                    if (isEncrypted(encryptedPropertyDetailsSet, property.getKey())) {
                        newProp = new EntityProperty(property.getValue().getValueAsString(), EdmType.BINARY);
                    } else {
                        newProp = new EntityProperty(property.getValue().getValueAsString(), propPair.type);
                    }
                    newProp.setDateBackwardCompatibility(options.getDateBackwardCompatibility());
                    properties.put(property.getKey(), newProp);
                }
            }
        }
    }

    // set the result properties, now that they are appropriately parsed
    if (options.getEncryptionPolicy() != null && cek != null) {
        // decrypt properties, if necessary
        properties = options.getEncryptionPolicy().decryptEntity(properties, encryptedPropertyDetailsSet,
                partitionKey, rowKey, cek, encryptionData, isJavaV1);
    }
    res.setProperties(properties);

    // use resolver if provided, else create entity based on clazz type
    if (resolver != null) {
        res.setResult(resolver.resolve(partitionKey, rowKey, timestamp, properties, res.getEtag()));
    } else if (clazzType != null) {
        // Generate new entity and return
        final T entity = clazzType.newInstance();
        entity.setEtag(res.getEtag());

        entity.setPartitionKey(partitionKey);
        entity.setRowKey(rowKey);
        entity.setTimestamp(timestamp);

        entity.readEntity(properties, opContext);

        res.setResult(entity);
    }

    return res;
}