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Swirlds is a software platform designed to build fully-distributed applications that harness the power of the cloud without servers. Now you can develop applications with fairness in decision making, speed, trust and reliability, at a fraction of the cost of traditional server-based platforms.
/*
* Copyright (C) 2023-2024 Hedera Hashgraph, LLC
*
* 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.swirlds.common.jackson;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import java.io.IOException;
import java.time.Instant;
/**
* Deserializer for optionally present {@link Instant} values.
*/
public class InstantDeserializer extends StdDeserializer {
public InstantDeserializer() {
this(null);
}
public InstantDeserializer(final Class vc) {
super(vc);
}
/**
* {@inheritDoc}
*
* Returns {@code null} if a value is not present.
*/
@Override
public Instant deserialize(final JsonParser jp, final DeserializationContext ctxt) throws IOException {
final String value = jp.getValueAsString();
if (value == null || value.isBlank()) {
return null;
}
return Instant.parse(value);
}
}