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Microsoft Kiota-Serialization for Json

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package com.microsoft.kiota.serialization;

import com.google.gson.JsonParser;

import jakarta.annotation.Nonnull;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.util.Objects;

/** Creates new Json parse nodes from the payload. */
public class JsonParseNodeFactory implements ParseNodeFactory {
    /** Creates a new factory */
    public JsonParseNodeFactory() {}

    /** {@inheritDoc} */
    @Nonnull public String getValidContentType() {
        return validContentType;
    }

    private static final String validContentType = "application/json";

    /** {@inheritDoc} */
    @Override
    @Nonnull public ParseNode getParseNode(
            @Nonnull final String contentType, @Nonnull final InputStream rawResponse) {
        Objects.requireNonNull(contentType, "parameter contentType cannot be null");
        Objects.requireNonNull(rawResponse, "parameter rawResponse cannot be null");
        if (contentType.isEmpty()) {
            throw new NullPointerException("contentType cannot be empty");
        } else if (!contentType.equals(validContentType)) {
            throw new IllegalArgumentException("expected a " + validContentType + " content type");
        }
        try (final InputStreamReader reader =
                new InputStreamReader(rawResponse, StandardCharsets.UTF_8)) {
            return new JsonParseNode(JsonParser.parseReader(reader));
        } catch (IOException ex) {
            throw new RuntimeException("could not close the reader", ex);
        }
    }
}