com.vmware.ovsdb.protocol.operation.notation.deserializer.AtomDeserializer Maven / Gradle / Ivy

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/*
 * Copyright (c) 2018 VMware, Inc. All Rights Reserved.
 *
 * This product is licensed to you under the BSD-2 license (the "License").
 * You may not use this product except in compliance with the BSD-2 License.
 *
 * This product may include a number of subcomponents with separate copyright
 * notices and license terms. Your use of these subcomponents is subject to the
 * terms and conditions of the subcomponent's license, as noted in the LICENSE
 * file.
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

package com.vmware.ovsdb.protocol.operation.notation.deserializer;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import com.vmware.ovsdb.jsonrpc.v1.util.JsonUtil;
import com.vmware.ovsdb.protocol.operation.notation.Atom;
import com.vmware.ovsdb.protocol.operation.notation.NamedUuid;
import com.vmware.ovsdb.protocol.operation.notation.Uuid;

import java.io.IOException;

public class AtomDeserializer extends StdDeserializer {

  protected AtomDeserializer() {
    this(null);
  }

  protected AtomDeserializer(Class vc) {
    super(vc);
  }

  @Override
  public Atom deserialize(
      JsonParser jp, DeserializationContext ctxt
  ) throws IOException {
    JsonNode jsonNode = jp.getCodec().readTree(jp);
    if (jsonNode.isTextual()) {
      // 
      return Atom.string(jsonNode.asText());
    } else if (jsonNode.isIntegralNumber()) {
      // 
      return Atom.integer(jsonNode.asLong());
    } else if (jsonNode.isDouble()) {
      // 
      return Atom.real(jsonNode.asDouble());
    } else if (jsonNode.isBoolean()) {
      // 
      return Atom.bool(jsonNode.asBoolean());
    } else if (jsonNode.isArray()) {
      // 
      Uuid uuid = JsonUtil.treeToValueNoException(jsonNode, Uuid.class);
      if (uuid != null) {
        return Atom.uuid(uuid);
      }
      // 
      NamedUuid namedUuid = JsonUtil.treeToValueNoException(jsonNode, NamedUuid.class);
      if (namedUuid != null) {
        return Atom.namedUuid(namedUuid);
      }
    }
    throw new IOException(jsonNode + " is not a valid ");
  }
}