| /* |
| * Copyright 2016 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.provider.te.topology; |
| |
| import static org.onosproject.yms.ydt.YdtContextOperationType.NONE; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.onosproject.protocol.restconf.server.utils.parser.json.ParserUtils; |
| import org.onosproject.yms.ych.YangCompositeEncoding; |
| import org.onosproject.yms.ych.YangDataTreeCodec; |
| import org.onosproject.yms.ydt.YdtBuilder; |
| import org.onosproject.yms.ydt.YmsOperationType; |
| import org.onosproject.yms.ymsm.YmsService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| |
| /** |
| * JSON/YDT Codec implementation. |
| */ |
| public class JsonYdtCodec implements YangDataTreeCodec { |
| private static final String RESTCONF_ROOT = "restconf/data"; |
| |
| protected final YmsService ymsService; |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| public JsonYdtCodec(YmsService service) { |
| ymsService = service; |
| } |
| |
| @Override |
| public String encodeYdtToProtocolFormat(YdtBuilder builder, |
| YmsOperationType opType) { |
| String json = ParserUtils.convertYdtToJson(builder.getRootNode().getName(), |
| builder.getRootNode(), |
| ymsService.getYdtWalker()) |
| .textValue(); |
| return json; |
| } |
| |
| @Override |
| public YangCompositeEncoding encodeYdtToCompositeProtocolFormat(YdtBuilder builder, |
| YmsOperationType opType) { |
| // Mainly for POST/PUT operation. |
| // YdtBuilder/YdtContext has YdtContextType NONE for URI, |
| // YdtContextType CREATE/MERGE/REPLACE for Resource data. |
| |
| // TODO: Implement this method in Release Ibis for TE Tunnel. |
| |
| return null; |
| } |
| |
| @Override |
| public YdtBuilder decodeProtocolDataToYdt(String protocolData, |
| Object schemaRegistryForYdt, |
| YmsOperationType opType) { |
| // Get a new builder |
| YdtBuilder builder = ymsService.getYdtBuilder(RESTCONF_ROOT, |
| null, |
| opType, |
| schemaRegistryForYdt); |
| ParserUtils.convertJsonToYdt(getObjectNode(protocolData), builder); |
| return builder; |
| } |
| |
| @Override |
| public YdtBuilder decodeCompositeProtocolDataToYdt(YangCompositeEncoding protocolData, |
| Object schemaRegistryForYdt, |
| YmsOperationType opType) { |
| // opType should be QUERY_REPLY |
| // Get a new builder |
| YdtBuilder builder = ymsService.getYdtBuilder(RESTCONF_ROOT, |
| null, |
| opType, |
| schemaRegistryForYdt); |
| // Convert the URI to ydtBuilder |
| |
| // YdtContextOperationType should be NONE for URI in QUERY_RESPONSE. |
| ParserUtils.convertUriToYdt(protocolData.getResourceIdentifier(), builder, NONE); |
| // Set default operation type for the payload node, is this for resource data? |
| // NULL/EMPTY for Resource data |
| builder.setDefaultEditOperationType(null); |
| |
| // Convert the payload json body to ydt |
| ParserUtils.convertJsonToYdt(getObjectNode(protocolData.getResourceInformation()), builder); |
| return builder; |
| } |
| |
| // Returns an ObjectNode from s JSON string. |
| private ObjectNode getObjectNode(String json) { |
| InputStream stream = IOUtils.toInputStream(json); |
| |
| ObjectNode rootNode; |
| ObjectMapper mapper = new ObjectMapper(); |
| try { |
| rootNode = (ObjectNode) mapper.readTree(stream); |
| } catch (IOException e) { |
| log.error("Can't read stream as a JSON ObjectNode: {}", e); |
| return null; |
| } |
| return rootNode; |
| } |
| |
| } |