com.nutanix.dp1.aio.deserializers.AioOneOfDeserializer Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of aiops-java-client Show documentation

Manage infrastructure on-premises and in the cloud seamlessly through AIOps features such as Analysis, Reporting, Capacity Planning, What if Analysis, VM Rightsizing, Troubleshooting, App Discovery, Broad Observability, and Ops Automation through Playbooks.

The newest version!

package com.nutanix.dp1.aio.deserializers;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import com.fasterxml.jackson.databind.node.JsonNodeType;
import lombok.extern.slf4j.Slf4j;

import java.io.IOException;

import static com.nutanix.dp1.aio.deserializers.AioDeserializerUtils.*;

@Slf4j
public abstract class AioOneOfDeserializer extends StdDeserializer {

  public AioOneOfDeserializer(JavaType wrapperClass) {
    super(wrapperClass);
  }

  @Override
  public W deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
    ObjectCodec codec = jp.getCodec();
    JsonNode node = codec.readTree(jp);
    try {
      W oneOfObject = getObjectInstance();
      Object value = getObject(codec, node);
      setDataObject(oneOfObject, value);
      return oneOfObject;
    }
    catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
      log.error("Class not found in classpath or could not be instantiated", e);
      throw new IOException("Class not found in classpath or could not be instantiated", e);
    }
  }

  protected abstract String getPackagePrefix();

  @SuppressWarnings("unchecked")
  protected W getObjectInstance() throws InstantiationException, IllegalAccessException {
    return (W) handledType().newInstance();
  }

  protected Object getObject(ObjectCodec codec, JsonNode node) throws IOException, ClassNotFoundException {
    JsonNodeType nodeType = node.getNodeType();
    if (nodeType == JsonNodeType.ARRAY || nodeType == JsonNodeType.OBJECT || nodeType == JsonNodeType.NUMBER ||
        nodeType == JsonNodeType.STRING || nodeType == JsonNodeType.BOOLEAN) {
      return readValue(codec, node, getPackagePrefix(),null);
    }
    else {
      log.error("Unrecognized json node type: {}", nodeType);
      throw new IllegalArgumentException("Could not recognize json node type");
    }
  }

  protected abstract void setDataObject(W oneOfObject, Object nestedObject);
}