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A Java Library for version 3 of the IIIF Presentation API

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package info.freelibrary.iiif.presentation.v3;

import static info.freelibrary.util.Constants.EMPTY;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.TreeNode;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;

import info.freelibrary.util.Logger;
import info.freelibrary.util.LoggerFactory;

import info.freelibrary.iiif.presentation.v3.utils.JSON;
import info.freelibrary.iiif.presentation.v3.utils.JsonKeys;
import info.freelibrary.iiif.presentation.v3.utils.MessageCodes;

/**
 * Deserializes a Thumbnail.
 */
class ContentResourceDeserializer extends StdDeserializer> {

    /**
     * The logger used by ContentResourceDeserializer.
     */
    private static final Logger LOGGER =
            LoggerFactory.getLogger(ContentResourceDeserializer.class, MessageCodes.BUNDLE);

    /**
     * The serialVersionUID of ContentResourceDeserializer.
     */
    private static final long serialVersionUID = 8526573955323691490L;

    /**
     * Creates a new Thumbnail deserializer.
     */
    ContentResourceDeserializer() {
        this(null);
    }

    /**
     * Creates a new Thumbnail deserializer.
     *
     * @param aClass A class
     */
    ContentResourceDeserializer(final Class aClass) {
        super(aClass);
    }

    /**
     * Deserializes a Thumbnail from its JSON structure.
     */
    @Override
    public ContentResource deserialize(final JsonParser aParser, final DeserializationContext aContext)
            throws IOException, JsonProcessingException {
        final TreeNode treeNode = aParser.getCodec().readTree(aParser);

        switch (treeNode.get(JsonKeys.TYPE).toString().replace("\"", EMPTY)) {
            case ResourceTypes.DATASET:
                return JSON.getReader(DatasetContent.class).readValue(treeNode.toString());
            case ResourceTypes.IMAGE:
                return JSON.getReader(ImageContent.class).readValue(treeNode.toString());
            case ResourceTypes.MODEL:
                return JSON.getReader(ModelContent.class).readValue(treeNode.toString());
            case ResourceTypes.SOUND:
                return JSON.getReader(SoundContent.class).readValue(treeNode.toString());
            case ResourceTypes.TEXT:
                return JSON.getReader(TextContent.class).readValue(treeNode.toString());
            case ResourceTypes.VIDEO:
                return JSON.getReader(VideoContent.class).readValue(treeNode.toString());
            default:
                throw new JsonParseException(aParser, LOGGER.getMessage(MessageCodes.JPA_056, treeNode.toString()));
        }
    }

}