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/*-
* ============LICENSE_START=======================================================
* ONAP - CCSDK
* ================================================================================
* Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.ccsdk.sli.plugins.yangserializers.dfserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.io.Writer;
import java.util.List;
import java.util.Map;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.DefaultPropertiesNodeWalker;
import org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.PropertiesNode;
import org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.PropertiesNodeWalker;
import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DataFormat.JSON;
import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DfSerializerUtil.JSON_LIS_ERR;
import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DfSerializerUtil.JSON_TREE_ERR;
/**
* Representation of JSON serializer which encodes properties to JSON and
* decodes properties from JSON with the data format serializer.
*/
public class JsonSerializer extends DataFormatSerializer {
/**
* Creates an instance of data format serializer.
*
* @param serializerContext data format serializer context
*/
protected JsonSerializer(DataFormatSerializerContext serializerContext) {
super(JSON, serializerContext);
}
@Override
public String encode(Map<String, String> param,
Map<String, List<Annotation>> annotations)
throws SvcLogicException {
PropertiesNode propNode = serializerContext().getPropNodeSerializer()
.encode(param);
PropertiesNodeWalker nodeWalker = new DefaultPropertiesNodeWalker<>();
PropertiesNodeJsonListener jsonLis = new PropertiesNodeJsonListener();
nodeWalker.walk(jsonLis, propNode);
Writer writer = jsonLis.getWriter();
return writer.toString();
}
@Override
public Map<String, String> decode(String dataFormatBody)
throws SvcLogicException {
if (!(serializerContext().listener() instanceof JsonListener)) {
throw new SvcLogicException(JSON_LIS_ERR);
}
JsonListener listener = (JsonListener) serializerContext().listener();
JsonWalker walker = new DefaultJsonWalker();
ObjectMapper mapper = new ObjectMapper();
JsonNode jsonNode;
try {
jsonNode = mapper.readTree(dataFormatBody);
} catch (IOException e) {
throw new SvcLogicException(JSON_TREE_ERR, e);
}
walker.walk(listener, jsonNode);
return serializerContext().getPropNodeSerializer().decode(
listener.serializerHelper().getPropertiesNode());
}
}
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