All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.tinymediamanager.core.NullKeySerializer Maven / Gradle / Ivy

The newest version!
/*
 * Copyright 2012 - 2019 Manuel Laggner
 *
 * 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.tinymediamanager.core;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;

/**
 * the class NullKeySerializer is used to ensure Jackson does not crash on writing null keys of maps
 */
public class NullKeySerializer extends StdSerializer {
  public NullKeySerializer() {
    this(null);
  }

  public NullKeySerializer(Class t) {
    super(t);
  }

  @Override
  public void serialize(Object nullKey, JsonGenerator jsonGenerator, SerializerProvider unused) throws IOException {
    jsonGenerator.writeFieldName("");
  }
}