Java tutorial
package it.reply.orchestrator.resource.common; /* * Copyright 2015-2017 Santer Reply S.p.A. * * 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. */ import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.JsonSerializer; import com.fasterxml.jackson.databind.SerializerProvider; import java.io.IOException; import java.util.Map; public class CustomSerializer extends JsonSerializer<Map<String, String>> { @Override public void serialize(Map<String, String> value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException { jgen.writeStartObject(); for (Map.Entry<String, String> e : value.entrySet()) { jgen.writeFieldName(e.getKey()); // Write value as raw data, since it's already JSON text jgen.writeRawValue(e.getValue()); } jgen.writeEndObject(); } }