net.tirasa.connid.bundles.kafka.serialization.SyncTokenDeserializer Maven / Gradle / Ivy

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/**
 * Copyright (C) 2024 ConnId ([email protected])
 *
 * 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 net.tirasa.connid.bundles.kafka.serialization;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import java.io.IOException;
import java.util.Base64;
import java.util.Objects;
import org.identityconnectors.framework.common.objects.SyncToken;

public class SyncTokenDeserializer extends JsonDeserializer {

    @Override
    public SyncToken deserialize(final JsonParser jp, final DeserializationContext ctx) throws IOException {
        ObjectNode tree = jp.readValueAsTree();

        Object value = tree.has("value")
                ? tree.has("type")
                ? deserialize(tree.get("value"), tree.get("type"))
                : deserialize(tree.get("value"))
                : null;

        return new SyncToken(Objects.requireNonNull(value));
    }

    private Object deserialize(final JsonNode value, final JsonNode type) {
        if (Boolean.class.getSimpleName().equals(type.asText())) {
            return value.asBoolean();
        }

        if (Double.class.getSimpleName().equals(type.asText())) {
            return value.asDouble();
        }
        if (Long.class.getSimpleName().equals(type.asText())) {
            return value.asLong();
        }
        if (Integer.class.getSimpleName().equals(type.asText())) {
            return value.asInt();
        }

        return value.asText();
    }

    private Object deserialize(final JsonNode value) {
        if (value.isBoolean()) {
            return value.asBoolean();
        }

        if (value.isDouble()) {
            return value.asDouble();
        }

        if (value.isLong()) {
            return value.asLong();
        }

        if (value.isInt()) {
            return value.asInt();
        }

        try {
            return Base64.getDecoder().decode(value.asText());
        } catch (RuntimeException e) {
            return value.asText();
        }
    }
}