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

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

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Introduction

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

Prototype

public void endArray() throws IOException

Source Link

Document

Consumes the next token from the JSON stream and asserts that it is the end of the current array.

Usage

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  ava 2s .  com*/

    // 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://  w  w  w . ja  va  2 s . c  om
    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://w w  w .j a va 2 s  .  co  m
        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  w  w  .j a v a  2  s .co  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   ww  w  .ja v  a 2s  . c  om
    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

/**
 * Switch value of parsed JsonToken.NAME and read edit definition or patch id
 * @param name value of token/*ww  w  . ja va 2 s. c  om*/
 * @param edit PatchEdit instance
 * @param in JsonReader reader
 * @param path InstanceIdentifierContext context
 * @param codec Draft11StringModuleInstanceIdentifierCodec codec
 * @param resultCollection collection of parsed edits
 * @throws IOException
 */
private void parseByName(@Nonnull final String name, @Nonnull final PatchEdit edit,
        @Nonnull final JsonReader in, @Nonnull final InstanceIdentifierContext path,
        @Nonnull final StringModuleInstanceIdentifierCodec codec,
        @Nonnull final List<PATCHEntity> resultCollection) throws IOException {
    switch (name) {
    case "edit":
        if (in.peek() == JsonToken.BEGIN_ARRAY) {
            in.beginArray();

            while (in.hasNext()) {
                readEditDefinition(edit, in, path, codec);
                resultCollection.add(prepareEditOperation(edit));
                edit.clear();
            }

            in.endArray();
        } else {
            readEditDefinition(edit, in, path, codec);
            resultCollection.add(prepareEditOperation(edit));
            edit.clear();
        }

        break;
    case "patch-id":
        this.patchId = in.nextString();
        break;
    default:
        break;
    }
}

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  . j av  a  2s  . c  om
 * @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/*w  w w . j  av  a  2s  .co  m*/
 * @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("}");
}

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

License:Open Source License

private void traverseAnyXmlValue(final JsonReader in, final Document doc, final Element parentElement)
        throws IOException {
    switch (in.peek()) {
    case STRING://from  w ww. j av  a2  s .c om
    case NUMBER:
        Text textNode = doc.createTextNode(in.nextString());
        parentElement.appendChild(textNode);
        break;
    case BOOLEAN:
        textNode = doc.createTextNode(Boolean.toString(in.nextBoolean()));
        parentElement.appendChild(textNode);
        break;
    case NULL:
        in.nextNull();
        textNode = doc.createTextNode("null");
        parentElement.appendChild(textNode);
        break;
    case BEGIN_ARRAY:
        in.beginArray();
        while (in.hasNext()) {
            final Element childElement = doc.createElement(ANYXML_ARRAY_ELEMENT_ID);
            parentElement.appendChild(childElement);
            traverseAnyXmlValue(in, doc, childElement);
        }
        in.endArray();
        break;
    case BEGIN_OBJECT:
        in.beginObject();
        while (in.hasNext()) {
            final Element childElement = doc.createElement(in.nextName());
            parentElement.appendChild(childElement);
            traverseAnyXmlValue(in, doc, childElement);
        }
        in.endObject();
    case END_DOCUMENT:
    case NAME:
    case END_OBJECT:
    case END_ARRAY:
        break;
    }
}

From source file:org.opendaylight.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 w w w .  j a v  a 2 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();
            DataSchemaNode parentSchema = parent.getSchema();
            if (parentSchema instanceof YangModeledAnyXmlSchemaNode) {
                parentSchema = ((YangModeledAnyXmlSchemaNode) parentSchema).getSchemaOfAnyXmlData();
            }
            final NamespaceAndName namespaceAndName = resolveNamespace(jsonElementName, parentSchema);
            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 = ParserStreamUtils
                    .findSchemaNodeByNameAndNamespace(parentSchema, 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);
            if (newChild instanceof AnyXmlNodeDataWithSchema) {
                readAnyXmlValue(in, (AnyXmlNodeDataWithSchema) newChild, jsonElementName);
            } else {
                read(in, newChild);
            }
            removeNamespace();
        }
        in.endObject();
        return;
    case END_DOCUMENT:
    case NAME:
    case END_OBJECT:
    case END_ARRAY:
        break;
    }
}