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/*-
* ============LICENSE_START=======================================================
* OPENECOMP - MSO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. 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.openecomp.mso.adapters.json;
import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.map.JsonSerializer;
import org.codehaus.jackson.map.SerializerProvider;
import java.io.IOException;
import java.util.Map;
/**
* Custom JSON Serializer for Map<String, String>.
* In MSO with Jackson 1.9.12 and RestEasy 3.0.8, maps in JSON are serialized as
* follows:
* <pre>
* "params": {
* "entry": [
* {"key": "P1", "value": "V1"},
* {"key": "P2", "value": "V2"},
* ...
* {"key": "PN", "value": "VN"}
* ]
* }
* </pre>
* The implementation uses a TreeMap, so entries are always sorted according
* to the natural ordering of the keys.
*/
public class MapSerializer extends JsonSerializer<Map<String, String>> {
@Override
public void serialize(Map<String, String> map, JsonGenerator jsonGenerator,
SerializerProvider serializerProvider) throws IOException,
JsonGenerationException {
jsonGenerator.writeStartObject();
jsonGenerator.writeArrayFieldStart("entry");
for (String key : map.keySet()) {
String value = map.get(key);
jsonGenerator.writeStartObject();
jsonGenerator.writeStringField("key", key);
jsonGenerator.writeStringField("value", value);
jsonGenerator.writeEndObject();
}
jsonGenerator.writeEndArray();
jsonGenerator.writeEndObject();
}
}
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