Example usage for com.google.gson.stream JsonReader nextName

List of usage examples for com.google.gson.stream JsonReader nextName

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Introduction

In this page you can find the example usage for com.google.gson.stream JsonReader nextName.

Prototype

public String nextName() throws IOException

Source Link

Document

Returns the next token, a com.google.gson.stream.JsonToken#NAME property name , and consumes it.

Usage

From source file:org.netscan.core.json.IPv4JsonAdapter.java

License:Open Source License

@Override
public IPv4 read(JsonReader in) throws IOException {
    in.beginObject();//  w  w  w .j a  v  a2 s  . c o  m
    in.nextName();
    String ip = in.nextString();
    in.endObject();
    return new IPv4(ip);
}

From source file:org.objectpocket.gson.CustomTypeAdapterFactory.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {

    TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);

    // @Entity//from  w  ww  . ja va  2s  .  c o  m
    if (type.getRawType().getAnnotation(Entity.class) != null) {
        return new TypeAdapter<T>() {

            // SERIALIZE
            public void write(JsonWriter out, T obj) throws IOException {
                if (obj != null) {
                    String id = objectPocket.getIdForObject(obj);
                    // normalize
                    if (!objectPocket.isSerializeAsRoot(obj)) {
                        gson.toJson(new ProxyOut(obj.getClass().getTypeName(), id), ProxyOut.class, out);
                        return;
                    } else {
                        objectPocket.setSerializeAsRoot(obj, false);
                    }
                }
                // default serialization
                delegate.write(out, obj);
            };

            // DESERIALIZE
            @SuppressWarnings("unchecked")
            @Override
            public T read(JsonReader in) throws IOException {
                if (in.getPath().length() > 2) {
                    in.beginObject();
                    in.nextName();
                    StringBuilder sb = new StringBuilder(in.nextString());
                    String id = sb.substring(0, sb.indexOf("@"));
                    in.endObject();
                    T obj = null;
                    try {
                        obj = (T) ReflectionUtil.instantiateDefaultConstructor(type.getRawType());
                    } catch (InstantiationException | IllegalAccessException | ClassNotFoundException
                            | NoSuchMethodException | InvocationTargetException e) {
                        throw new IOException("Could not instantiate class " + type.getRawType().getName()
                                + "\n" + "Might be that the class has no default constructor!", e);
                    }
                    objectPocket.addIdFromReadObject(obj, id);
                    return obj;
                } else {
                    T obj = delegate.read(in);
                    return obj;
                }
            }
        };
    }
    // All other
    else {
        return delegate;
    }
}

From source file:org.ohmage.OhmageApi.java

License:Apache License

private Response parseStreamingReadResponse(String url, HttpResponse response,
        StreamingResponseListener listener) {
    Result result = Result.HTTP_ERROR;
    String[] errorCodes = null;/*from  ww  w.j a  va2 s.c  o m*/

    // the response object that will be returned; its type is decided by outputType
    // it's also populated by a call to populateFromJSON() which transforms the server response into the Response object
    Response candidate = new Response();
    CountingInputStream inputstream = null;

    if (response != null) {
        Log.v(TAG, response.getStatusLine().toString());
        if (response.getStatusLine().getStatusCode() == 200) {
            HttpEntity responseEntity = response.getEntity();

            if (responseEntity != null) {
                try {

                    JsonParser parser = new JsonParser();
                    JsonReader reader = new JsonReader(new InputStreamReader(
                            new CountingInputStream(responseEntity.getContent()), "UTF-8"));
                    reader.beginObject();

                    // expecting: {result: "<status>", data: [{},{},{}...]}
                    while (reader.hasNext()) {
                        String name = reader.nextName();
                        if ("result".equals(name)) {
                            if (reader.nextString().equalsIgnoreCase("success")) {
                                result = Result.SUCCESS;
                            } else {
                                result = Result.FAILURE;
                            }
                        } else if ("data".equals(name)) {
                            reader.beginArray();

                            // do pre-read init
                            listener.beforeRead();

                            while (reader.hasNext()) {
                                JsonElement elem = parser.parse(reader);
                                listener.readObject(elem.getAsJsonObject());
                            }

                            // do post-read cleanup
                            listener.afterRead();

                            reader.endArray();
                        } else if ("errors".equals(name)) {
                            reader.beginArray();

                            List<String> errorList = new ArrayList<String>();

                            while (reader.hasNext()) {
                                // read off each of the errors and stick it
                                // into the error array
                                JsonElement elem = parser.parse(reader);
                                errorList.add(elem.getAsJsonObject().get("code").getAsString());
                            }

                            errorCodes = errorList.toArray(new String[errorList.size()]);

                            reader.endArray();
                        } else {
                            reader.skipValue();
                        }
                    }

                    reader.endObject();

                    // and we're done!
                } catch (IOException e) {
                    Log.e(TAG, "Problem reading response body", e);
                    result = Result.INTERNAL_ERROR;
                }

                try {
                    responseEntity.consumeContent();
                } catch (IOException e) {
                    Log.e(TAG, "Error consuming content", e);
                }

            } else {
                Log.e(TAG, "No response entity in response");
                result = Result.HTTP_ERROR;
            }
        } else {
            Log.e(TAG, "Returned status code: " + String.valueOf(response.getStatusLine().getStatusCode()));
            result = Result.HTTP_ERROR;
        }

    } else {
        Log.e(TAG, "Response is null");
        result = Result.HTTP_ERROR;
    }

    if (inputstream != null && result == Result.SUCCESS)
        Analytics.network(mContext, url, inputstream.amountRead());

    listener.readResult(result, errorCodes);
    candidate.setResponseStatus(result, errorCodes);

    return candidate;
}

From source file:org.onos.yangtools.yang.data.codec.gson.JsonParserStream.java

License:Open Source License

public void read(final JsonReader in, AbstractNodeDataWithSchema parent) throws IOException {
    switch (in.peek()) {
    case STRING:/*from ww  w  .ja  v  a2 s  .c o m*/
    case NUMBER:
        setValue(parent, in.nextString());
        break;
    case BOOLEAN:
        setValue(parent, Boolean.toString(in.nextBoolean()));
        break;
    case NULL:
        in.nextNull();
        setValue(parent, null);
        break;
    case BEGIN_ARRAY:
        in.beginArray();
        while (in.hasNext()) {
            if (parent instanceof LeafNodeDataWithSchema) {
                read(in, parent);
            } else {
                final AbstractNodeDataWithSchema newChild = newArrayEntry(parent);
                read(in, newChild);
            }
        }
        in.endArray();
        return;
    case BEGIN_OBJECT:
        final Set<String> namesakes = new HashSet<>();
        in.beginObject();
        /*
         * This allows parsing of incorrectly /as showcased/
         * in testconf nesting of list items - eg.
         * lists with one value are sometimes serialized
         * without wrapping array.
         *
         */
        if (isArray(parent)) {
            parent = newArrayEntry(parent);
        }
        while (in.hasNext()) {
            final String jsonElementName = in.nextName();
            final NamespaceAndName namespaceAndName = resolveNamespace(jsonElementName, parent.getSchema());
            final String localName = namespaceAndName.getName();
            addNamespace(namespaceAndName.getUri());
            if (namesakes.contains(jsonElementName)) {
                throw new JsonSyntaxException("Duplicate name " + jsonElementName + " in JSON input.");
            }
            namesakes.add(jsonElementName);
            final Deque<DataSchemaNode> childDataSchemaNodes = findSchemaNodeByNameAndNamespace(
                    parent.getSchema(), localName, getCurrentNamespace());
            if (childDataSchemaNodes.isEmpty()) {
                throw new IllegalStateException("Schema for node with name " + localName + " and namespace "
                        + getCurrentNamespace() + " doesn't exist.");
            }

            final AbstractNodeDataWithSchema newChild = ((CompositeNodeDataWithSchema) parent)
                    .addChild(childDataSchemaNodes);
            /*
             * FIXME:anyxml data shouldn't be skipped but should be loaded somehow.
             * will be able to load anyxml which conforms to YANG data using these
             * parser, for other anyxml will be harder.
             */
            if (newChild instanceof AnyXmlNodeDataWithSchema) {
                in.skipValue();
            } else {
                read(in, newChild);
            }
            removeNamespace();
        }
        in.endObject();
        return;
    case END_DOCUMENT:
    case NAME:
    case END_OBJECT:
    case END_ARRAY:
        break;
    }
}

From source file:org.opendaylight.controller.sal.rest.gson.JsonParser.java

License:Open Source License

public JsonElement read(JsonReader in) throws IOException {
    switch (in.peek()) {
    case STRING:/* ww w. j  a  va2 s.  com*/
        return new JsonPrimitive(in.nextString());
    case NUMBER:
        String number = in.nextString();
        return new JsonPrimitive(new LazilyParsedNumber(number));
    case BOOLEAN:
        return new JsonPrimitive(in.nextBoolean());
    case NULL:
        in.nextNull();
        return JsonNull.INSTANCE;
    case BEGIN_ARRAY:
        JsonArray array = new JsonArray();
        in.beginArray();
        while (in.hasNext()) {
            array.add(read(in));
        }
        in.endArray();
        return array;
    case BEGIN_OBJECT:
        JsonObject object = new JsonObject();
        in.beginObject();
        while (in.hasNext()) {
            final String childName = in.nextName();
            if (object.has(childName)) {
                throw new JsonSyntaxException("Duplicate name " + childName + " in JSON input.");
            }
            object.add(childName, read(in));
        }
        in.endObject();
        return object;
    case END_DOCUMENT:
    case NAME:
    case END_OBJECT:
    case END_ARRAY:
    default:
        throw new IllegalArgumentException();
    }
}

From source file:org.opendaylight.netconf.sal.rest.impl.JsonToPATCHBodyReader.java

License:Open Source License

private List<PATCHEntity> read(final JsonReader in, InstanceIdentifierContext path) throws IOException {

    boolean inEdit = false;
    boolean inValue = false;
    String operation = null;//from   w ww . j a  v a 2s.c o m
    String target = null;
    String editId = null;
    List<PATCHEntity> resultCollection = new ArrayList<>();

    while (in.hasNext()) {
        switch (in.peek()) {
        case STRING:
        case NUMBER:
            in.nextString();
            break;
        case BOOLEAN:
            Boolean.toString(in.nextBoolean());
            break;
        case NULL:
            in.nextNull();
            break;
        case BEGIN_ARRAY:
            in.beginArray();
            break;
        case BEGIN_OBJECT:
            if (inEdit && operation != null & target != null & inValue) {
                //let's do the stuff - find out target node
                //                      StringInstanceIdentifierCodec codec = new StringInstanceIdentifierCodec(path
                //                               .getSchemaContext());
                //                        if (path.getInstanceIdentifier().toString().equals("/")) {
                //                        final YangInstanceIdentifier deserialized = codec.deserialize(target);
                //                        }
                DataSchemaNode targetNode = ((DataNodeContainer) (path.getSchemaNode()))
                        .getDataChildByName(target.replace("/", ""));
                if (targetNode == null) {
                    LOG.debug("Target node {} not found in path {} ", target, path.getSchemaNode());
                    throw new RestconfDocumentedException("Error parsing input", ErrorType.PROTOCOL,
                            ErrorTag.MALFORMED_MESSAGE);
                } else {

                    final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
                    final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter
                            .from(resultHolder);

                    //keep on parsing json from place where target points
                    final JsonParserStream jsonParser = JsonParserStream.create(writer, path.getSchemaContext(),
                            path.getSchemaNode());
                    jsonParser.parse(in);

                    final YangInstanceIdentifier targetII = path.getInstanceIdentifier()
                            .node(targetNode.getQName());
                    resultCollection
                            .add(new PATCHEntity(editId, operation, targetII, resultHolder.getResult()));
                    inValue = false;

                    operation = null;
                    target = null;
                }
                in.endObject();
            } else {
                in.beginObject();
            }
            break;
        case END_DOCUMENT:
            break;
        case NAME:
            final String name = in.nextName();

            switch (name) {
            case "edit":
                inEdit = true;
                break;
            case "operation":
                operation = in.nextString();
                break;
            case "target":
                target = in.nextString();
                break;
            case "value":
                inValue = true;
                break;
            case "patch-id":
                patchId = in.nextString();
                break;
            case "edit-id":
                editId = in.nextString();
                break;
            }
            break;
        case END_OBJECT:
            in.endObject();
            break;
        case END_ARRAY:
            in.endArray();
            break;

        default:
            break;
        }
    }

    return ImmutableList.copyOf(resultCollection);
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

private List<PATCHEntity> read(final JsonReader in, final InstanceIdentifierContext path) throws IOException {
    final List<PATCHEntity> resultCollection = new ArrayList<>();
    final StringModuleInstanceIdentifierCodec codec = new StringModuleInstanceIdentifierCodec(
            path.getSchemaContext());/*from  w w w.  j av  a 2 s.  co  m*/
    final JsonToPATCHBodyReader.PatchEdit edit = new JsonToPATCHBodyReader.PatchEdit();

    while (in.hasNext()) {
        switch (in.peek()) {
        case STRING:
        case NUMBER:
            in.nextString();
            break;
        case BOOLEAN:
            Boolean.toString(in.nextBoolean());
            break;
        case NULL:
            in.nextNull();
            break;
        case BEGIN_ARRAY:
            in.beginArray();
            break;
        case BEGIN_OBJECT:
            in.beginObject();
            break;
        case END_DOCUMENT:
            break;
        case NAME:
            parseByName(in.nextName(), edit, in, path, codec, resultCollection);
            break;
        case END_OBJECT:
            in.endObject();
            break;
        case END_ARRAY:
            in.endArray();
            break;

        default:
            break;
        }
    }

    return ImmutableList.copyOf(resultCollection);
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

/**
 * Read one patch edit object from Json input
 * @param edit PatchEdit instance to be filled with read data
 * @param in JsonReader reader// w w w.j  a v a 2s. co m
 * @param path InstanceIdentifierContext path context
 * @param codec Draft11StringModuleInstanceIdentifierCodec codec
 * @throws IOException
 */
private void readEditDefinition(@Nonnull final PatchEdit edit, @Nonnull final JsonReader in,
        @Nonnull final InstanceIdentifierContext path, @Nonnull final StringModuleInstanceIdentifierCodec codec)
        throws IOException {
    final StringBuffer value = new StringBuffer();
    in.beginObject();

    while (in.hasNext()) {
        final String editDefinition = in.nextName();
        switch (editDefinition) {
        case "edit-id":
            edit.setId(in.nextString());
            break;
        case "operation":
            edit.setOperation(in.nextString());
            break;
        case "target":
            // target can be specified completely in request URI
            final String target = in.nextString();
            if (target.equals("/")) {
                edit.setTarget(path.getInstanceIdentifier());
                edit.setTargetSchemaNode(path.getSchemaContext());
            } else {
                edit.setTarget(codec.deserialize(codec.serialize(path.getInstanceIdentifier()).concat(target)));
                edit.setTargetSchemaNode(
                        SchemaContextUtil.findDataSchemaNode(path.getSchemaContext(), codec.getDataContextTree()
                                .getChild(edit.getTarget()).getDataSchemaNode().getPath().getParent()));
            }

            break;
        case "value":
            // save data defined in value node for next (later) processing, because target needs to be read
            // always first and there is no ordering in Json input
            readValueNode(value, in);
            break;
        default:
            break;
        }
    }

    in.endObject();

    // read saved data to normalized node when target schema is already known
    edit.setData(
            readEditData(new JsonReader(new StringReader(value.toString())), edit.getTargetSchemaNode(), path));
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

/**
 * Parse data defined in value node and saves it to buffer
 * @param value Buffer to read value node
 * @param in JsonReader reader//w w  w  .  ja va2 s . c  o m
 * @throws IOException
 */
private void readValueNode(@Nonnull final StringBuffer value, @Nonnull final JsonReader in) throws IOException {
    in.beginObject();
    value.append("{");

    value.append("\"" + in.nextName() + "\"" + ":");

    if (in.peek() == JsonToken.BEGIN_ARRAY) {
        in.beginArray();
        value.append("[");

        while (in.hasNext()) {
            readValueObject(value, in);
            if (in.peek() != JsonToken.END_ARRAY) {
                value.append(",");
            }
        }

        in.endArray();
        value.append("]");
    } else {
        readValueObject(value, in);
    }

    in.endObject();
    value.append("}");
}

From source file:org.opendaylight.restconf.jersey.providers.JsonToPATCHBodyReader.java

License:Open Source License

/**
 * Parse one value object of data and saves it to buffer
 * @param value Buffer to read value object
 * @param in JsonReader reader//from w  w w .j a v  a 2s.com
 * @throws IOException
 */
private void readValueObject(@Nonnull final StringBuffer value, @Nonnull final JsonReader in)
        throws IOException {
    in.beginObject();
    value.append("{");

    while (in.hasNext()) {
        value.append("\"" + in.nextName() + "\"");
        value.append(":");

        if (in.peek() == JsonToken.STRING) {
            value.append("\"" + in.nextString() + "\"");
        } else {
            if (in.peek() == JsonToken.BEGIN_ARRAY) {
                in.beginArray();
                value.append("[");

                while (in.hasNext()) {
                    readValueObject(value, in);
                    if (in.peek() != JsonToken.END_ARRAY) {
                        value.append(",");
                    }
                }

                in.endArray();
                value.append("]");
            } else {
                readValueObject(value, in);
            }
        }

        if (in.peek() != JsonToken.END_OBJECT) {
            value.append(",");
        }
    }

    in.endObject();
    value.append("}");
}