com.github.kagkarlsson.scheduler.serializer.jackson.InstantSerializer Maven / Gradle / Ivy

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Simple persistent scheduler for scheduled tasks, recurring or ad-hoc.

There is a newer version: 15.0.0

/*
 * Copyright (C) Gustav Karlsson
 *
 * 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.github.kagkarlsson.scheduler.serializer.jackson;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
import java.io.IOException;
import java.time.Instant;
import java.time.format.DateTimeFormatter;

public class InstantSerializer extends StdSerializer {
  static final DateTimeFormatter FORMATTER = DateTimeFormatter.ISO_INSTANT;

  public InstantSerializer() {
    this(null);
  }

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

  @Override
  public void serialize(
      Instant instant, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
      throws IOException {
    jsonGenerator.writeString(FORMATTER.format(instant));
  }
}