com.exactpro.sf.common.impl.messages.json.configuration.FieldMessageDeserializer Maven / Gradle / Ivy
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* Copyright 2009-2019 Exactpro (Exactpro Systems Limited)
*
* 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 com.exactpro.sf.common.impl.messages.json.configuration;
import java.io.IOException;
import com.exactpro.sf.common.util.EPSCommonException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonParser.Feature;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectReader;
public class FieldMessageDeserializer extends JsonDeserializer {
private static final ObjectReader INNER_READER = new ObjectMapper().enable(Feature.STRICT_DUPLICATE_DETECTION).readerFor(JsonField.class);
@Override
public JsonField deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
JsonNode obj = p.readValueAsTree();
if (obj == null) {
return null;
}
Object fields = obj.get("fields");
if (fields != null) {
return p.getCodec().treeToValue(obj, JsonMessage.class);
} else {
if (p.getCodec() == INNER_READER) {
throw new EPSCommonException("This deserializer using like root. Please create separate module with addDeserializer().");
}
return INNER_READER.readValue(obj);
}
}
}